Saturday, January 19, 2008
Wednesday, January 16, 2008
Monday, January 14, 2008
Tuesday, January 8, 2008
Explosions, Fires and Accidents Resulting from Leakage of Liquefied Petroleum Gas
10.1 (LPG)
10.1.1 In view of the considerable use on smaller cargo ships, fishing vessels, tugs, barges, launches and pleasure craft of bottled hydrocarbon gases for cooking, water and space heating, refrigerators, etc., the MCA wishes to draw attention to the possible dangers which may accompany their use and to the need for installations to comply at least with the requirements of British Standard Institution publication BS 5482: Part 3: 1979—The code of practice for domestic butane and propane gas-burning installations; Part 3—Installations in boats, yachts and other vessels.
Individual appliances and fittings should comply with the relevant British Standard Specifications listed in BS 5482: Part 3: 1979.
more
10.1.1 In view of the considerable use on smaller cargo ships, fishing vessels, tugs, barges, launches and pleasure craft of bottled hydrocarbon gases for cooking, water and space heating, refrigerators, etc., the MCA wishes to draw attention to the possible dangers which may accompany their use and to the need for installations to comply at least with the requirements of British Standard Institution publication BS 5482: Part 3: 1979—The code of practice for domestic butane and propane gas-burning installations; Part 3—Installations in boats, yachts and other vessels.
Individual appliances and fittings should comply with the relevant British Standard Specifications listed in BS 5482: Part 3: 1979.
more
Wednesday, January 2, 2008
FCG POWER PRODUCTS
Products
Product List Light Fittings Control Station Junction Box Switches Control Panel Telephone Cable Gland Accessories
Light Fittings
Control Station
Junction Box
Switches
Socket
Control Panel
Telephone
Cable Gland
Accessories
more
Product List Light Fittings Control Station Junction Box Switches Control Panel Telephone Cable Gland Accessories
Light Fittings
Control Station
Junction Box
Switches
Socket
Control Panel
Telephone
Cable Gland
Accessories
more
Tuesday, January 1, 2008
other expert reports
OCRed document
every flameproof cable gland needs to be. inspected (after installation) by a registered. expert. This registered expert is normally ...ieeexplore.ieee.org/iel3/1240/489/00009533.pdf?arnumber=9533 - Similar pages
[PDF]
Newsletter
File Format: PDF/Adobe Acrobat - View as HTML‘Flameproof Enclosures’,. Certification. •. Secretary CENELEC/TC31. “Electrical Apparatus for explosive. atmospheres”. •. expert IEC/MT 7 ‘Flameproof ...www.iecex.com/newsletter/021204_IECEx_%20Newsletter_02_02-rev-21.pdf - Similar pages
Mining Science and Technology '99: Proceedings of the '99 ... - Google Books Result
by Heping Xie, Tad S. Golosinski - 1999 - Technology As shown in Figure 6, the flameproof portable computer with an expert system communicates with each monitoring system substation in underground longwall ...books.google.com/books?isbn=9058090671...
JUNCTION BOXES
Expert in CNC Dies, Jigs, Fixtures, Precision Components, ... Flame Proof Light Fitting, Flame Proof Equipments, Flame Proof Switchgears, Flame Proof ...www.maharashtradirectory.com/SearchResult.asp?ProductID=1756 - 139k - Cached - Similar pages
Flameproof - a reference guide from Processingtalk
Looking for the latest flameproof-related news? ... As part of its commitment to the provision of expert technical advice on electrical conduit systems, ...www.processingtalk.com/guides/flameproof.html - 20k - Cached - Similar pages
Environmental-Expert.com - 0500 series mid-flow process and ...
Environmental Expert Gold & Silver Sponsorships Now Available! ... RS232 analogue auto control pumps; 521DF/RLA close-coupled flameproof fixed speed pumps ...www.environmental-expert.com/STSE_resulteach_product.aspx?cid=2193&idprofile=37&idproduct=1072 - 74k - Cached - Similar pages
Fire Doors Exporter
We take this opportunity to introduce ourselves as leading expert in the filed ... flame proof equipments, safety equipments, fire protection equipments . ...www.tradeindia.com/selloffer/1270181/Fire-Doors.html - 49k - Cached - Similar pages
[PDF]
COMPOSITION OF ET 01 BASIC ELECTROTECHNICAL STANDARDS Central ...
File Format: PDF/Adobe Acrobat - View as HTMLIndian Pump Manufacturers' Association. Shri C.S. Kasana,. Alternate ..... Indian Flameproof Mfrs. Association. Shri Nandakumar K. Principal ...www.bis.org.in/sf/competd.pdf - Similar pages -
UMARGAM INDUSTRIES ASSOCIATION
World chemical directory with chemical manufacturers, ... Products:, Electric Hoist,EOT Cranes,Good Lifts,Speciality Flame Proof Hoist. ...www.uiassociation.org/cgi-bin/via/search.cgi?query=Engineering&nh=8 - 136k - Cached - Similar pages -
every flameproof cable gland needs to be. inspected (after installation) by a registered. expert. This registered expert is normally ...ieeexplore.ieee.org/iel3/1240/489/00009533.pdf?arnumber=9533 - Similar pages
[PDF]
Newsletter
File Format: PDF/Adobe Acrobat - View as HTML‘Flameproof Enclosures’,. Certification. •. Secretary CENELEC/TC31. “Electrical Apparatus for explosive. atmospheres”. •. expert IEC/MT 7 ‘Flameproof ...www.iecex.com/newsletter/021204_IECEx_%20Newsletter_02_02-rev-21.pdf - Similar pages
Mining Science and Technology '99: Proceedings of the '99 ... - Google Books Result
by Heping Xie, Tad S. Golosinski - 1999 - Technology As shown in Figure 6, the flameproof portable computer with an expert system communicates with each monitoring system substation in underground longwall ...books.google.com/books?isbn=9058090671...
JUNCTION BOXES
Expert in CNC Dies, Jigs, Fixtures, Precision Components, ... Flame Proof Light Fitting, Flame Proof Equipments, Flame Proof Switchgears, Flame Proof ...www.maharashtradirectory.com/SearchResult.asp?ProductID=1756 - 139k - Cached - Similar pages
Flameproof - a reference guide from Processingtalk
Looking for the latest flameproof-related news? ... As part of its commitment to the provision of expert technical advice on electrical conduit systems, ...www.processingtalk.com/guides/flameproof.html - 20k - Cached - Similar pages
Environmental-Expert.com - 0500 series mid-flow process and ...
Environmental Expert Gold & Silver Sponsorships Now Available! ... RS232 analogue auto control pumps; 521DF/RLA close-coupled flameproof fixed speed pumps ...www.environmental-expert.com/STSE_resulteach_product.aspx?cid=2193&idprofile=37&idproduct=1072 - 74k - Cached - Similar pages
Fire Doors Exporter
We take this opportunity to introduce ourselves as leading expert in the filed ... flame proof equipments, safety equipments, fire protection equipments . ...www.tradeindia.com/selloffer/1270181/Fire-Doors.html - 49k - Cached - Similar pages
[PDF]
COMPOSITION OF ET 01 BASIC ELECTROTECHNICAL STANDARDS Central ...
File Format: PDF/Adobe Acrobat - View as HTMLIndian Pump Manufacturers' Association. Shri C.S. Kasana,. Alternate ..... Indian Flameproof Mfrs. Association. Shri Nandakumar K. Principal ...www.bis.org.in/sf/competd.pdf - Similar pages -
UMARGAM INDUSTRIES ASSOCIATION
World chemical directory with chemical manufacturers, ... Products:, Electric Hoist,EOT Cranes,Good Lifts,Speciality Flame Proof Hoist. ...www.uiassociation.org/cgi-bin/via/search.cgi?query=Engineering&nh=8 - 136k - Cached - Similar pages -
are Exd products really safe?
Standards: Explosion Proof...Is It Really?
Instrument engineers are responsible for providing safe and appropriate instrumentation. To declare a system safe, simply because a single component is approved, is dangerous in more ways than one.
Two important factors should be considered whenever a job involves electrical equipment in a hazardous location:
1.) Safety. Is the equipment specified truly safe to use in the proposed environment? If the answer is yes, then on what premise is that answer based?
2.) Liability. If you have determined that the equipment specified is safe, are you prepared to defend that determination in a court room?
No one wants to be responsible for injuring others, especially when easily obtainable safeguards exist. In the event of an unfortunate incident, the consequences can be punitive if the injured party can prove that the designer did not take all reasonable and prudent measures to protect against predicable hazards.
In the event of an accident involving an explosion in a hazardous environment, the attorneys for the injured party will attempt to prove negligence on the designer's part. To do this, they usually will retain some individual or organization recognized as an expert in the field.
The designer might be asked what measures were taken to ensure that the equipment was safe. Then, their expert would attempt to point out items missed or not listed under direct examination.
In the United States, Factory Mutual Research Corp. (FMRC) is recognized as one of the experts in the field of industrial safety. For certain installations, many companies, local governments and regulatory agencies require that all electrical equipment must be approved by FM, Underwriters Laboratories (UL), and the Canadian Standards Association (CSA).
In general, these rules and regulations spell out the location's category by class, division and group. (See Definitions) When an installation requires that electrical-measuring instruments be placed in locations that are considered hazardous, it is incumbent upon the engineer to see that the installation is safe.
The user generally will specify the degree of safety required. For example, a petrochemical company could specify that supplied equipment must be explosion proof for Class I, Division 1, Group B.
The user is being very specific as to the level of security expected, referring to Article 500 of the National Electrical Code. Factory Mutual subscribes to this code and references it in their approval guide.In general, the classification defines the extent of the hazard, taking into account the energy required to ignite certain gas mixtures and the potential forces released as a result.
When an assembly is called explosion proof, the sensor assembly manufacturer is certifying to the user that specific steps have been taken to ensure the safety of all Plant personnel. But, no chain is stronger than its weakest link; likewise, no system is explosion proof if it contains non-explosion proof components.
Systems are rendered explosion proof by two means:
Design the system so that it cannot release sufficient electrical or thermal energy to ignite the specified gas mixture. Such systems are classified as intrinsically safe.
Design the system such that it is capable of containing an internal explosion of a specified flammable vapor air mixture and may contain sufficiently long thread paths such that any escaping gases will be cooled below the ignition temperature of the surrounding atmosphere.
Installing a temperature sensor in a hazardous location requires more than an approved explosion proof connection head. To meet the safety requirements of FM and CSA, you must consider the complete system: including the sensor, the thermowell (if required and used) and the connection head.
Each component in the system must meet the code. For example, many thermowells are supplied with 1/2-14 NPSM threads for the sensor connection. FM/CSA dictates that to meet the requirements for explosion proof, a tapered thread is required.
Most sensors are supplied with a 1/2-14 NPT thread; however, FM/CSA also specifies a minimum thread engagement between the sensor and the connection head. The thread engagement requirement makes it necessary to overcut the thermowell thread beyond the ASME definition of 1/2-14 NPT.
Those manufacturers wishing to offer explosion proof assemblies must meet FM/CSA's requirements. Once a design is constructed with the proper thread size and engagement between the head cover, head body, wire conduit and seal, sensor, lag fittings and thermowell, the manufacturer submits the design to FM/CSA for testing to ensure that the specified gas mixtures are properly contained.
Once approved by FM/CSA, the manufacturer is not permitted to alter any of the approved configurations without FM/CSA approval. If changes are necessary, FM/CSA may require additional testing before approving any changes. In addition, FM/CSA performs periodic unannounced inspections of the manufacturer's plant to ensure that the assemblies are constructed in accordance with the approved drawings.
With explosion proof assemblies, it is truly a case of ?you get what you pay for?. Using unapproved sensors or thermowells with an approved, explosion proof connection head, for example, will not provide the protection you need for your plant and personel.
Failure to consider the entire system, or failure to utilize the knowledge and resources of recognized experts in this critical area, is at best risky, and at worst dangerous and irresponsible.
To review this and more articles on temperature control please visit: www.rdfcorp.com
Posted by Admin on Friday, February 24, 2006 (1204 Reads)
more
Instrument engineers are responsible for providing safe and appropriate instrumentation. To declare a system safe, simply because a single component is approved, is dangerous in more ways than one.
Two important factors should be considered whenever a job involves electrical equipment in a hazardous location:
1.) Safety. Is the equipment specified truly safe to use in the proposed environment? If the answer is yes, then on what premise is that answer based?
2.) Liability. If you have determined that the equipment specified is safe, are you prepared to defend that determination in a court room?
No one wants to be responsible for injuring others, especially when easily obtainable safeguards exist. In the event of an unfortunate incident, the consequences can be punitive if the injured party can prove that the designer did not take all reasonable and prudent measures to protect against predicable hazards.
In the event of an accident involving an explosion in a hazardous environment, the attorneys for the injured party will attempt to prove negligence on the designer's part. To do this, they usually will retain some individual or organization recognized as an expert in the field.
The designer might be asked what measures were taken to ensure that the equipment was safe. Then, their expert would attempt to point out items missed or not listed under direct examination.
In the United States, Factory Mutual Research Corp. (FMRC) is recognized as one of the experts in the field of industrial safety. For certain installations, many companies, local governments and regulatory agencies require that all electrical equipment must be approved by FM, Underwriters Laboratories (UL), and the Canadian Standards Association (CSA).
In general, these rules and regulations spell out the location's category by class, division and group. (See Definitions) When an installation requires that electrical-measuring instruments be placed in locations that are considered hazardous, it is incumbent upon the engineer to see that the installation is safe.
The user generally will specify the degree of safety required. For example, a petrochemical company could specify that supplied equipment must be explosion proof for Class I, Division 1, Group B.
The user is being very specific as to the level of security expected, referring to Article 500 of the National Electrical Code. Factory Mutual subscribes to this code and references it in their approval guide.In general, the classification defines the extent of the hazard, taking into account the energy required to ignite certain gas mixtures and the potential forces released as a result.
When an assembly is called explosion proof, the sensor assembly manufacturer is certifying to the user that specific steps have been taken to ensure the safety of all Plant personnel. But, no chain is stronger than its weakest link; likewise, no system is explosion proof if it contains non-explosion proof components.
Systems are rendered explosion proof by two means:
Design the system so that it cannot release sufficient electrical or thermal energy to ignite the specified gas mixture. Such systems are classified as intrinsically safe.
Design the system such that it is capable of containing an internal explosion of a specified flammable vapor air mixture and may contain sufficiently long thread paths such that any escaping gases will be cooled below the ignition temperature of the surrounding atmosphere.
Installing a temperature sensor in a hazardous location requires more than an approved explosion proof connection head. To meet the safety requirements of FM and CSA, you must consider the complete system: including the sensor, the thermowell (if required and used) and the connection head.
Each component in the system must meet the code. For example, many thermowells are supplied with 1/2-14 NPSM threads for the sensor connection. FM/CSA dictates that to meet the requirements for explosion proof, a tapered thread is required.
Most sensors are supplied with a 1/2-14 NPT thread; however, FM/CSA also specifies a minimum thread engagement between the sensor and the connection head. The thread engagement requirement makes it necessary to overcut the thermowell thread beyond the ASME definition of 1/2-14 NPT.
Those manufacturers wishing to offer explosion proof assemblies must meet FM/CSA's requirements. Once a design is constructed with the proper thread size and engagement between the head cover, head body, wire conduit and seal, sensor, lag fittings and thermowell, the manufacturer submits the design to FM/CSA for testing to ensure that the specified gas mixtures are properly contained.
Once approved by FM/CSA, the manufacturer is not permitted to alter any of the approved configurations without FM/CSA approval. If changes are necessary, FM/CSA may require additional testing before approving any changes. In addition, FM/CSA performs periodic unannounced inspections of the manufacturer's plant to ensure that the assemblies are constructed in accordance with the approved drawings.
With explosion proof assemblies, it is truly a case of ?you get what you pay for?. Using unapproved sensors or thermowells with an approved, explosion proof connection head, for example, will not provide the protection you need for your plant and personel.
Failure to consider the entire system, or failure to utilize the knowledge and resources of recognized experts in this critical area, is at best risky, and at worst dangerous and irresponsible.
To review this and more articles on temperature control please visit: www.rdfcorp.com
Posted by Admin on Friday, February 24, 2006 (1204 Reads)
more
Sunday, December 30, 2007
Flameproof failure and Disasters
BUY CHEAP, PAY HEAVY
APPIN COLLIERY Explosion
GRESFORD Disaster
ACCIDENT Reports by DGFASLI
FATAL EXPLOSIONS IN COAL MINES
APPIN COLLIERY Explosion
GRESFORD Disaster
ACCIDENT Reports by DGFASLI
FATAL EXPLOSIONS IN COAL MINES
After delivery to site, the flameproofness of the enclosure cannot be verified (after the electrical circuitry is assembled in the enclosure by the manufacturer)
So some manufacturers will issue a fake TC testifying to 100% hydraulic testing
Many manufacturers do not have the infrastructure for 100% hydraulic testing. Also if tested the enclosure may not withstand the test (low wall thickness and bad design)
Today in India, there is no effective statutory and regulatory authority.
ISI Marking and ISO 9001 certification is not mandatory
The only requirement is successful testing of the prototype (one time)
The manufacturers may then manufacture with lower wall thickness to save on matl costs
With the L1 system of awarding contracts, even the reputed manufacturers are forced to compromise.
So now these defective products are probably installed in coal mines, ordinance depots, BARC, Satellite launching stations, refineries, oil rigs, etc.
Book Description
It is by avoiding accidents that the process industries will improve their public image. Lessons from Disaster focuses upon the apparent inability of organizations to learn, and retain in long-term, the lessons drawn from accidents.Incidents of a similar type continue to occur within companies repeatedly.
Trevor Kletz illustrates this with detailed cases, which form a gold mine of experience and advice for every engineer. He offers, with his customary vision and imagination, his own advice on how to improve the corporate memory.
About the Author
Trevor Kletz, OBE, D.Sc., F.Eng., a process safety consultant, has published more than a hundred papers and nine books on loss prevention and process safety, including most recently Lessons From Disaster: How Organizations Have No Memory and Accidents Recur and Computer Control and Human Error. His experience includes thirty-eight years with Imperial Chemical Industries Ltd., where he served as a production manager and safety adviser in the petrochemical division, and membership in the department of chemical engineering at Loughborough University, Leicestershire, England. He is currently senior visiting research fellow at Loughborough University and an officer of the Order of the British Empire.
more
PDF]
The Brookwood Disaster and Electrical Requirements for Hazardous ...
File Format: PDF/Adobe Acrobat - View as HTMLdisasters Adherence to National Electrical codea requirements ..... requirements, for example flameproof motors and switchgear. ...www.cdc.gov/niosh/mining/pubs/pdfs/tbdae.pdf - Similar pages -
[PDF]
HPI / Serious Accidents 12/2/2006
File Format: PDF/Adobe Acrobat - View as HTMLSUMMARY OF SERIOUS ACCIDENT AND HIGH POTENTIAL INCIDENT REPORTS .... At an underground coal mine a flameproof headlight on a personnel transporter was ...www.dme.qld.gov.au/zone_files/inspectorate_pdf/hpi_accidents_to120206.pdf - Similar pages -
Fatal Accidents In Scottish Mines & Collieries 1918
[Mine Inspectors Report 1918] Bothwell accidents page ... not make a tight joint with the body of the machine, with the result that it was not flame proof. ...freepages.genealogy.rootsweb.com/~miningvillages/1918.html - 31k - Cached - Similar pages -
[PDF]
Manual
File Format: PDF/Adobe Acrobat - View as HTMLWhenever work is done on the flameproof. control unit, be sure to observe the national. safety and accident prevention regulations ...www.thuba.com/display.cfm/id/101611/disp_type/display/filename/1120395026253_man_atex_1036.pdf - Similar pages -
Maintenance procedures
... materials or items outside specification (e.g. non-flameproof equipment) are ... HSE, 'Dangerous Maintenance - A Study of Maintenance Accidents and how ...www.hse.gov.uk/comah/sragtech/techmeasmaintena.htm - 21k - Cached - Similar pages
Safety Surveys-Looking Key Activities Depth
when flameproof electrical equipment was surveyed only .... did, activities that have not yet caused accidents but which. your knowledge, or experience in ...doi.wiley.com/10.1002/prs.680170106 - Similar pages -
[PDF]
Revenue & Expenditure Number of Premises/inspection Introduction ...
File Format: PDF/Adobe Acrobat - View as HTMLvery important aspect that in more than about 90% of accidents, ... Allowing non-flameproof fittings (by either improper repair or otherwise) in ...explosives.nic.in/wmchap4wo.pdf - Similar pages -
IEC Releases Standard for Safety of Electrical Equipment Used in ...
6 - Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d" in response to accidents that occur when people work with explosive ...electronics.ihs.com/news/iec-explosive-atmospheres.htm - 32k - Cached - Similar pages -
[PDF]
Safe Method of Use 19 General Exempt Laboratory Requirements
File Format: PDF/Adobe Acrobat - View as HTMLof secondary containment – flameproof cabinets have sumps which .... All accidents and incidents must be reported to Laboratory Manager. ...www.fmhs.auckland.ac.nz/faculty/hs/_docs/General%20Exempt%20laboratory.pdf - Similar pages -
Scoring explained Air Safety Week Find Articles at BNET.com
Trevett: Mainly we use the Case Loss Record and World Aircraft Accidents Statistics (WAAS) ... unofficial and non-flame proof cabinetry and furnishings, ...findarticles.com/p/articles/mi_m0UBT/is_2_15/ai_68928328 - 27k - Cached - Similar pages -
CHAPTER
... electrical flameproof equipments etc. were provided and Safety Officers were ... 7.11 With a view to arrest the increasing trend of accidents in ...labourbureau.nic.in/Stat-of-Fact-2k1-Chp.7.htm - 10k - Cached - Similar pages -
[PDF]
Flam info UK.indd
File Format: PDF/Adobe Acrobat - View as HTMLThe flameproof properties in a Proban. ®. -treated fabric will last during the ... This type of accident accounts for some 40% of all electrical accidents. ...www.fristads.com/filarkiv/Flameproof%20protective%20clothing%20info%20UK.pdf - Similar pages -
Search
... against accident, irritation or fire, motorsport flame proof overalls, ... protective nets; protection devices for personal use against accidents, ...webdb1.patent.gov.uk/search?words=spectacle;page=5 - 15k - Cached - Similar pages --
Lessons from Disaster: How Organizations Have No Memory and ... - Google Books Result
by Trevor A. Kletz - 1993 - Technology MAINTENANCE OF FLAMEPROOF ELECTRICAL EQUIPMENT The source of ignition of the explosion described in Section 2.2, Incident 2 (page 11), may have been faulty ...books.google.com/books?isbn=0852953070...
[PDF]
World Bank Document
File Format: PDF/Adobe Acrobat - View as HTMLthe number of coal mining accidents, disasters and fatalities, and ... equipment, flame-proof electrical machinery, monitoring systems, and ...www-wds.worldbank.org/.../WDSP/IB/1999/08/18/000094946_99031911065267/Rendered/PDF/multi0page.pdf - Similar pages -
Explosion protected not Flame proof: December 2005
A chronology of some of the major oil industry accidents in the last 20 years: ... July 1988: In the world's worst oil rig disaster, 167 people were killed ...tqmcintlexd.blogspot.com/2005_12_01_archive.html - 105k - Cached - Similar pages -
PPT]
ACTS & RULES ADMINISTERED
File Format: Microsoft Powerpoint - View as HTML... flame proof electrical installation; “2” area, Non sparking apparatus .... Accidents in storage installations are rare which is creditable to India ...www.ficci.com/media-room/speeches-presentations/2006/apr/disaster/Kataria.ppt - Similar pages -
PDF]
Mine Safety and Health Administration (MHSA) - Approval and ...
File Format: PDF/Adobe Acrobat - View as HTMLassist in the reduction of serious accidents. and fatalities. ... Flameproof Enclosure standard and. published its findings in the Federal. Register. ...www.msha.gov/techsupp/acc/newsletters/July2007.pdf - Similar pages -
CRASH-AERIEN.COM - Le Site Français des Accidents et Incidents Aériens
Le Site de Crash Aérien - Fiche d'Accident. ... Although such equipment is designed to be flameproof, the aircraft had an extensive repair history during ...www.crash-aerien.com/www/database/fiche.php?id=1604 - 10k - Cached - Similar pages -
Explosion protected not Flame proof
What is the difference btw flameproof (Explosion Proof) equipment, ...... A chronology of some of the major oil industry accidents in the last 20 years: ...tqmcintlexd.blogspot.com/ - 321k - Cached - Similar pages -
[PDF]
58-63 Flam_EN.indd
File Format: PDF/Adobe Acrobat - View as HTMLThis type of accident accounts for some 40% of all electrical accidents. ..... For the collection of flameproof high visibility garments see pages 56-57. ...www.fristads.co.uk/filarkiv/Flameproof%20protective%20clothing_UK.pdf - Similar pages -
New response-vehicle for tanker accidents
New response-vehicle for tanker accidents. By: Nicola Mawson ... full 36 kVa generator power pack to facilitate the use of flameproof electrical appliances. ...www.engineeringnews.co.za/print_version.php?a_id=63252 - 5k - Cached - Similar pages - Note this
[DOC]
Health & Safety News 5/06
File Format: Microsoft Word - View as HTMLInduced accidents: see the very interesting warning from the insurance industry about staged .... Do charge rechargeable cells on a flame proof surface. ...www.nerc.ac.uk/about/work/policy/safety/documents/newsletters/2006/nov.doc - Similar pages -
Hazardous area interfaces, Enclosures - latest news
Combustible dust accidents reported by OHSA .... The Kopex International HAM, HAMM and HAMS ranges of ATEX flameproof glands are approved for use in Zones 1 ...www.processingtalk.com/indexes/categorybrowsecb.html - 26k - Cached - Similar pages -
The Factories Act, Chapter - I
(5) Only flame proof electrical equipment shall be used in a confined space ... (2) In the case of accidents falling under Cl. (b) of sub- regulation (1) ...dgfasli.nic.in/html/dockact/rule11.htm - 22k - Cached - Similar pages -
IEC - News releases > nr0907 - 6th edition explosive atmospheres ...
But such accidents are not inevitable; with proper attention to safety, ... 6 – Explosive Atmospheres – Part 1: Equipment protection by flameproof ...www.iec.ch/news_centre/release/nr2007/nr0907.htm - 27k - Cached - Similar pages -
Kopex International web site, latest news and contact details
... from accidents owing to explosive atmospheres Brochure available ... Kopex International HAM, HAMM and HAMS ranges of ATEX flameproof glands are ...www.buildingtalk.com/news/kop/kop000.html - 25k - Cached - Similar pages -
[PDF]
ATEX Safety Instructions
File Format: PDF/Adobe Acrobat - View as HTMLNo maintenance or repair of the flameproof enclosure is permitted. ... in the event of rare accidents, ignition sources due to impact and friction sparks ...www.mobrey.com/downloads/manuals/m317_si.pdf - Similar pages -
DOC]
FIRE ACT
File Format: Microsoft Word - View as HTMLAny flameproof product specified in the preceding paragraph herein or its .... and such failure is attributable to any death from a fire disaster at such ...210.69.173.10/root/law/html/doc_Eng/預防組/Fire%20Services%20Act.doc - Similar pages -
[PDF]
DANGEROUS GOODS STORAGE ACCIDENT REPORT FORM
File Format: PDF/Adobe Acrobat - View as HTMLwiring not flameproof. 6. Section 4[F] - we are seeking an estimate of the .... (50) CONTAINER FAILURE. (53) FAILURE OF FITTINGS. (56) CORROSION FAILURE ...www.docep.wa.gov.au/ResourcesSafety/Sections/Dangerous_Goods/pdf/DG%20Forms/F_Storage_SAR1_Rev4_.pdf - Similar pages -
Book Description
It is by avoiding accidents that the process industries will improve their public image. Lessons from Disaster focuses upon the apparent inability of organizations to learn, and retain in long-term, the lessons drawn from accidents.Incidents of a similar type continue to occur within companies repeatedly.
Trevor Kletz illustrates this with detailed cases, which form a gold mine of experience and advice for every engineer. He offers, with his customary vision and imagination, his own advice on how to improve the corporate memory.
About the Author
Trevor Kletz, OBE, D.Sc., F.Eng., a process safety consultant, has published more than a hundred papers and nine books on loss prevention and process safety, including most recently Lessons From Disaster: How Organizations Have No Memory and Accidents Recur and Computer Control and Human Error. His experience includes thirty-eight years with Imperial Chemical Industries Ltd., where he served as a production manager and safety adviser in the petrochemical division, and membership in the department of chemical engineering at Loughborough University, Leicestershire, England. He is currently senior visiting research fellow at Loughborough University and an officer of the Order of the British Empire.
more
PDF]
The Brookwood Disaster and Electrical Requirements for Hazardous ...
File Format: PDF/Adobe Acrobat - View as HTMLdisasters Adherence to National Electrical codea requirements ..... requirements, for example flameproof motors and switchgear. ...www.cdc.gov/niosh/mining/pubs/pdfs/tbdae.pdf - Similar pages -
[PDF]
HPI / Serious Accidents 12/2/2006
File Format: PDF/Adobe Acrobat - View as HTMLSUMMARY OF SERIOUS ACCIDENT AND HIGH POTENTIAL INCIDENT REPORTS .... At an underground coal mine a flameproof headlight on a personnel transporter was ...www.dme.qld.gov.au/zone_files/inspectorate_pdf/hpi_accidents_to120206.pdf - Similar pages -
Fatal Accidents In Scottish Mines & Collieries 1918
[Mine Inspectors Report 1918] Bothwell accidents page ... not make a tight joint with the body of the machine, with the result that it was not flame proof. ...freepages.genealogy.rootsweb.com/~miningvillages/1918.html - 31k - Cached - Similar pages -
[PDF]
Manual
File Format: PDF/Adobe Acrobat - View as HTMLWhenever work is done on the flameproof. control unit, be sure to observe the national. safety and accident prevention regulations ...www.thuba.com/display.cfm/id/101611/disp_type/display/filename/1120395026253_man_atex_1036.pdf - Similar pages -
Maintenance procedures
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Saturday, December 29, 2007
Protection of electrical equipment in hazardous areas
Hazardous areas, in which potentially explosive atmospheres exist, are encountered in a wide variety of industries. Thankfully the science of how to operate safely in such areas is now well understood, though knowing how best to comply with the requirements is something that still causes widespread confusion. Particular care has to be taken with electrical apparatus because of its potential for creating sparks and hotspots that could ignite a gas, vapour, mist or dust-laden atmosphere.
Such environments are encountered in everyday life, with petrol station forecourts being an obvious example, but industry sectors that are prone to hazardous areas are mining, chemical processing, petrochemicals, and oil and gas (Fig. 1). In addition, pharmaceutical production facilities often have areas where solvents are used, and specialty chemical plants often have hazardous areas. Flour mills, bakeries, sugar processors, timber processors, coal handling plant, paper mills and processors of metals such as aluminium and magnesium, for example, can all have areas where dust-laden atmospheres are potentially explosive, so it can be seen that the full spectrum of production and process plants that can contain hazardous areas is extremely broad.
Regulations, gas groups and zones
Here in the European Economic Area (EEA), hazardous gases are classified in EN 50014: 1997 (Electrical apparatus for potentially explosive atmospheres - General requirements), which is a harmonised standard under Directive 94/9/EC (Equipment and protective systems intended for use in potentially explosive atmospheres) or, as it is commonly known, the ATEX Directive. This standard is about to be superseded by EN 60079-0:2004, which is based on the IEC standard IEC60079-0:2004 (Electrical apparatus for explosive gas atmospheres Part 0: General requirements). EN 50014 divides potentially explosive gases into two groups: Group I relates to mines susceptible to fire damp (methane) and Group II relates to other places.
Because of the specialist nature of mining, this present article considers Group II areas only.Group II is further sub-divided into three to reflect the different flammability of gases (and vapours and mists). Group IIA is for the least flammable gases (such as propane), while Group IIB is for medium-flammability gases (such as ethylene) and Group IIC is for the most flammable (such as hydrogen).
However, it should be remembered that, in general, gases on their own are not flammable; they also need oxygen or another oxidant with which they can react in combustion. (The exception is acetylene, which can decompose explosively in the absence of oxygen into carbon and hydrogen.)Furthermore, specifiers of apparatus for hazardous areas need to know the likelihood of the explosive gas-air mixture being present, so three zones of risk are defined within the hazardous area. In Zone 0 the risk is greatest, with the hazard continuously present - usually due to a continuous source of release.
In Zone 1, the risk is lower but the hazard is likely to be present under normal operating conditions – normally due to a primary source of release. In Zone 2, however, the hazard is unlikely to be present and, if so, it will be present only for short periods or due to a fault condition (normally stemming from a secondary source of release). As a general rule, in Zone 0 the hazard will be present for more than 1000 hours per year and in Zone 2 the hazard will be present for less than 10 hours per year – though these figures are not laid down in any standard.
Protection to suit Zones
Having established the nature of the hazard and the level of risk associated with it, a protection method needs to be selected to suit (Fig. 2).For Zone 0 the preferred method is intrinsic safety type ‘ia’ (two-fault tolerant), though special protection can be employed if specifically certified for this use, and it is possible to use encapsulation in some limited circumstances.
Nonetheless, intrinsic safety is almost always the only practical option, especially for sophisticated apparatus such as instrumentation.There is a much wider choice for applications in Zone 1 areas. Intrinsic safety (type ia, which is two fault - or type ib - which is single-fault tolerant) is often the preferred method, though flameproof protection, increased safety and purge/pressurisation protection are also commonly used.
Less frequently encountered are sand/powder filling, oil immersion, encapsulation and special protection.Within a Zone 2 area any of the above methods may be used, or Type-n (non-incendive) protection - in which the apparatus is not capable of causing ignition through the creation of sparks or hot surfaces during normal operation (though fault conditions could potentially cause ignition).
In all cases the requirement is to provide the necessary level of protection at a reasonable cost, though specifiers should be aware that a lower purchase cost will almost always lead to a higher cost-of-ownership. For Zone 0 we have seen that the only practical option is intrinsic safety, and for Zone 2 the considerably lower purchase cost of Type-n protected apparatus will often make replacement more cost-effective than repair, so cost-of-ownership is less of an issue. However, the choice is not so straightforward for Zone 1.
Intrinsic safety
Such environments are encountered in everyday life, with petrol station forecourts being an obvious example, but industry sectors that are prone to hazardous areas are mining, chemical processing, petrochemicals, and oil and gas (Fig. 1). In addition, pharmaceutical production facilities often have areas where solvents are used, and specialty chemical plants often have hazardous areas. Flour mills, bakeries, sugar processors, timber processors, coal handling plant, paper mills and processors of metals such as aluminium and magnesium, for example, can all have areas where dust-laden atmospheres are potentially explosive, so it can be seen that the full spectrum of production and process plants that can contain hazardous areas is extremely broad.
Regulations, gas groups and zones
Here in the European Economic Area (EEA), hazardous gases are classified in EN 50014: 1997 (Electrical apparatus for potentially explosive atmospheres - General requirements), which is a harmonised standard under Directive 94/9/EC (Equipment and protective systems intended for use in potentially explosive atmospheres) or, as it is commonly known, the ATEX Directive. This standard is about to be superseded by EN 60079-0:2004, which is based on the IEC standard IEC60079-0:2004 (Electrical apparatus for explosive gas atmospheres Part 0: General requirements). EN 50014 divides potentially explosive gases into two groups: Group I relates to mines susceptible to fire damp (methane) and Group II relates to other places.
Because of the specialist nature of mining, this present article considers Group II areas only.Group II is further sub-divided into three to reflect the different flammability of gases (and vapours and mists). Group IIA is for the least flammable gases (such as propane), while Group IIB is for medium-flammability gases (such as ethylene) and Group IIC is for the most flammable (such as hydrogen).
However, it should be remembered that, in general, gases on their own are not flammable; they also need oxygen or another oxidant with which they can react in combustion. (The exception is acetylene, which can decompose explosively in the absence of oxygen into carbon and hydrogen.)Furthermore, specifiers of apparatus for hazardous areas need to know the likelihood of the explosive gas-air mixture being present, so three zones of risk are defined within the hazardous area. In Zone 0 the risk is greatest, with the hazard continuously present - usually due to a continuous source of release.
In Zone 1, the risk is lower but the hazard is likely to be present under normal operating conditions – normally due to a primary source of release. In Zone 2, however, the hazard is unlikely to be present and, if so, it will be present only for short periods or due to a fault condition (normally stemming from a secondary source of release). As a general rule, in Zone 0 the hazard will be present for more than 1000 hours per year and in Zone 2 the hazard will be present for less than 10 hours per year – though these figures are not laid down in any standard.
Protection to suit Zones
Having established the nature of the hazard and the level of risk associated with it, a protection method needs to be selected to suit (Fig. 2).For Zone 0 the preferred method is intrinsic safety type ‘ia’ (two-fault tolerant), though special protection can be employed if specifically certified for this use, and it is possible to use encapsulation in some limited circumstances.
Nonetheless, intrinsic safety is almost always the only practical option, especially for sophisticated apparatus such as instrumentation.There is a much wider choice for applications in Zone 1 areas. Intrinsic safety (type ia, which is two fault - or type ib - which is single-fault tolerant) is often the preferred method, though flameproof protection, increased safety and purge/pressurisation protection are also commonly used.
Less frequently encountered are sand/powder filling, oil immersion, encapsulation and special protection.Within a Zone 2 area any of the above methods may be used, or Type-n (non-incendive) protection - in which the apparatus is not capable of causing ignition through the creation of sparks or hot surfaces during normal operation (though fault conditions could potentially cause ignition).
In all cases the requirement is to provide the necessary level of protection at a reasonable cost, though specifiers should be aware that a lower purchase cost will almost always lead to a higher cost-of-ownership. For Zone 0 we have seen that the only practical option is intrinsic safety, and for Zone 2 the considerably lower purchase cost of Type-n protected apparatus will often make replacement more cost-effective than repair, so cost-of-ownership is less of an issue. However, the choice is not so straightforward for Zone 1.
Intrinsic safety
Ex Standards referred by IEC 60079-0
Publication Year Title EN/HD Year
IEC 60034-5 - 1) Rotating electrical machines
Part 5: Degrees of protection provided
by the integral design of rotating
electrical machines (IP code) –
Classification
EN 60034-5 2001 2)
IEC 60079-1 - 1) Electrical apparatus for explosive gas
atmospheres
Part 1: Flameproof enclosures 'd'
EN 60079-1 2004 2)
IEC 60079-2 - 1) Part 2: Pressurized enclosures "p" - -
IEC 60079-4 - 1) Part 4: Method of test for ignition
temperature
- -
IEC 60079-5 - 1) Part 5: Powder filling 'q' - -
IEC 60079-6 - 1) Part 6: Oil-immersion "o" - -
IEC 60079-7 - 1) Part 7: Increased safety "e" EN 60079-7 2003 2)
IEC 60079-10 - 1) Part 10: Classification of hazardous
areas
EN 60079-10 2003 2)
IEC 60079-11 - 1) Part 11: Intrinsic safety "i" - -
IEC 60079-15
(mod)
- 1) Part 15: Type of protection "n"
EN 60079-15 2003 2)
IEC 60079-18 - 1) Part 18: Encapsulation "m" - -
IEC 60079-25 - 1) Part 25: Intrinsically safe systems EN 60079-25 2004 2)
IEC 60079-26 - 3) Part 26: Construction, test and marking
of Group II Zone 0 electrical apparatus
- -
IEC 60086-1 - 1) Primary batteries
Part 1: General
EN 60086-1 2001 2)
1) Undated reference.
2) Valid edition at date of issue.
3) To be published.
EN 60079−0:2004
IEC 60095-1
(mod)
- 1) Lead-acid starter batteries
Part 1: General requirements and
methods of test
EN 60095-1 1993 2)
IEC 60192 - 1) Low pressure sodium vapour lamps -
Performance specifications
EN 60192 2001 2)
IEC 60216-1 - 1) Electrical insulating materials -
Properties of thermal endurance
Part 1: Ageing procedures and
evaluation of test results
EN 60216-1 2001 2)
IEC 60216-2 - 1) Part 2: Choice of test criteria HD 611.2 S1 1992 2)
IEC 60423 (mod) - 1) Conduits for electrical purposes -
Outside diameters of conduits for
electrical installations and threads for
conduits and fittings
EN 60423 1994 2)
IEC 60529 - 1) Degrees of protection provided by
enclosures (IP Code)
EN 60529 1991 2)
IEC 60622 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Sealed nickel-cadmium
prismatic rechargeable single cells
EN 60622 2003 2)
IEC 60623 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Vented nickel-cadmium
prismatic rechargeable single cells
EN 60623 2001 2)
IEC 60662 - 1) High-pressure sodium vapour lamps
EN 60662 1993 2)
IEC 60947-1
(mod)
- 1) Low-voltage switchgear and controlgear
Part 1: General rules
EN 60947-1 1999 2)
IEC 61056-1 - 1) General purpose lead-acid batteries
(valve regulated types)
Part 1: General requirements, functional
characteristics - Methods of test
EN 61056-1 2003 2)
IEC 61150 - 1) Alkaline secondary cells and batteries -
Sealed nickel-cadmium rechargeable
monobloc batteries in button cell design
EN 61150 1993 2)
IEC 61436 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Sealed nickel-metal
hydride rechargeable single cells
EN 61436 1998 2)
IEC 61951-1 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Portable sealed
rechargeable single cells
Part 1: Nickel-cadmium
EN 61951-1 2003 2)
EN 60079−0:2004
IEC 62013-1
(mod)
- 1) Caplights for use in mines susceptible
to firedamp
Part 1: General requirements -
Construction and testing in relation to
the risk of explosion
EN 62013-1 2002 2)
IEC 62086-1 - 1) Electrical apparatus for explosive gas
atmospheres - Electrical resistance
trace heating - Part 1: General and
testing requirements
- -
ISO 48 - 1) Rubber, vulcanized or thermoplastic
Determination of hardness (hardness
between 10 IRHD and 100 IRHD)
- -
ISO 178 - 1) Plastics - Determination of flexural
properties
EN ISO 178 1996 2)
ISO 179 - 1) Plastics - Determination of Charpy
impact strength
EN ISO 179 1996 2)
ISO 262 - 1) ISO general-purpose metric screw
threads
Selected sizes for screws, bolts and
nuts
-
ISO 273 - 1) Fasteners - Clearance holes for bolts
and screws
EN 20273 1991 2)
ISO 286-2 - 1) ISO system of limits and fits
Part 2: Tables of standard tolerance
grades and limit deviations for holes
and shafts
EN 20286 1993 2)
ISO 527-2 - 1) Plastics - Determination of tensile
properties
Part 2: Test conditions for moulding and
extrusion plastics
EN ISO 527-2 1996 2)
ISO 965-1 - 1) ISO general-purpose metric screw
threads - Tolerances
Part 1: Principles and basic data
- -
ISO 965-3 - 1) ISO general purpose metric screw
threads - Tolerances - Part 3:
Deviations for constructional threads
- -
ISO 1817 - 1) Rubber, vulcanized - Determination of
the effect of liquids
- -
ISO 4014 - 1) Hexagon head bolts - Product grades A
and B
EN ISO 4014 2000 2)
ISO 4017 - 1) Hexagon head screws - Product grades
A and B
EN ISO 4017 2000 2)
ISO 4026 - 1) Hexagon socket set screws with flat
point
EN ISO 4026 2003 2)
EN 60079−0:2004
ISO 4027 - 1) Hexagon socket set screws with cone
point
EN ISO 4027 2003 2)
ISO 4028 - 1) Hexagon socket set screws with dog
point
EN ISO 4028 2003 2)
ISO 4029 - 1) Hexagon socket set screws with cup
point
EN ISO 4029 2003 2)
ISO 4032 - 1) Hexagon nuts, style 1 - Product grades
A and B
EN ISO 4032 2000 2)
ISO 4762 - 1) Hexagon socket head cap screws -
Product grade A
EN ISO 4762 1997 2)
ISO 4892-1 - 1) Plastics - Methods of exposure to
laboratory light sources
Part 1: General guidance
EN ISO 4892-1 2000 2)
ANSI/UL 746B - 1) Polymeric Materials - Long-Term
Property Evaluations
- -
EN 60079−0:2004
Bibliography
IEC 60079-12, Electrical apparatus for explosive gas atmospheres – Part 12: Classification of
mixtures of gases of vapours with air according to their maximum experimental safe gaps and
minimum igniting currents
IEC 60079-14, Electrical apparatus for explosive gas atmospheres – Part 14: Electrical
installations in hazardous areas (other than mines)
IEC 60079-17, Electrical apparatus for explosive gas atmospheres – Part 17: Inspection and
maintenance of electrical installations in hazardous areas (other than mines)
IEC 60079-19, Electrical apparatus for explosive gas atmospheres – Part 19: Repair and
overhaul for apparatus used in explosive atmospheres (other than mines or explosives)
IEC 60079-20, Electrical apparatus for explosive gas atmospheres – Part 20: Data for
flammable gases and vapours, relating to the use of electrical apparatus
ISO/IEC DIS 17000, Conformity assessment – General vocabulary
IEC 60034-5 - 1) Rotating electrical machines
Part 5: Degrees of protection provided
by the integral design of rotating
electrical machines (IP code) –
Classification
EN 60034-5 2001 2)
IEC 60079-1 - 1) Electrical apparatus for explosive gas
atmospheres
Part 1: Flameproof enclosures 'd'
EN 60079-1 2004 2)
IEC 60079-2 - 1) Part 2: Pressurized enclosures "p" - -
IEC 60079-4 - 1) Part 4: Method of test for ignition
temperature
- -
IEC 60079-5 - 1) Part 5: Powder filling 'q' - -
IEC 60079-6 - 1) Part 6: Oil-immersion "o" - -
IEC 60079-7 - 1) Part 7: Increased safety "e" EN 60079-7 2003 2)
IEC 60079-10 - 1) Part 10: Classification of hazardous
areas
EN 60079-10 2003 2)
IEC 60079-11 - 1) Part 11: Intrinsic safety "i" - -
IEC 60079-15
(mod)
- 1) Part 15: Type of protection "n"
EN 60079-15 2003 2)
IEC 60079-18 - 1) Part 18: Encapsulation "m" - -
IEC 60079-25 - 1) Part 25: Intrinsically safe systems EN 60079-25 2004 2)
IEC 60079-26 - 3) Part 26: Construction, test and marking
of Group II Zone 0 electrical apparatus
- -
IEC 60086-1 - 1) Primary batteries
Part 1: General
EN 60086-1 2001 2)
1) Undated reference.
2) Valid edition at date of issue.
3) To be published.
EN 60079−0:2004
IEC 60095-1
(mod)
- 1) Lead-acid starter batteries
Part 1: General requirements and
methods of test
EN 60095-1 1993 2)
IEC 60192 - 1) Low pressure sodium vapour lamps -
Performance specifications
EN 60192 2001 2)
IEC 60216-1 - 1) Electrical insulating materials -
Properties of thermal endurance
Part 1: Ageing procedures and
evaluation of test results
EN 60216-1 2001 2)
IEC 60216-2 - 1) Part 2: Choice of test criteria HD 611.2 S1 1992 2)
IEC 60423 (mod) - 1) Conduits for electrical purposes -
Outside diameters of conduits for
electrical installations and threads for
conduits and fittings
EN 60423 1994 2)
IEC 60529 - 1) Degrees of protection provided by
enclosures (IP Code)
EN 60529 1991 2)
IEC 60622 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Sealed nickel-cadmium
prismatic rechargeable single cells
EN 60622 2003 2)
IEC 60623 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Vented nickel-cadmium
prismatic rechargeable single cells
EN 60623 2001 2)
IEC 60662 - 1) High-pressure sodium vapour lamps
EN 60662 1993 2)
IEC 60947-1
(mod)
- 1) Low-voltage switchgear and controlgear
Part 1: General rules
EN 60947-1 1999 2)
IEC 61056-1 - 1) General purpose lead-acid batteries
(valve regulated types)
Part 1: General requirements, functional
characteristics - Methods of test
EN 61056-1 2003 2)
IEC 61150 - 1) Alkaline secondary cells and batteries -
Sealed nickel-cadmium rechargeable
monobloc batteries in button cell design
EN 61150 1993 2)
IEC 61436 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Sealed nickel-metal
hydride rechargeable single cells
EN 61436 1998 2)
IEC 61951-1 - 1) Secondary cells and batteries
containing alkaline or other non-acid
electrolytes - Portable sealed
rechargeable single cells
Part 1: Nickel-cadmium
EN 61951-1 2003 2)
EN 60079−0:2004
IEC 62013-1
(mod)
- 1) Caplights for use in mines susceptible
to firedamp
Part 1: General requirements -
Construction and testing in relation to
the risk of explosion
EN 62013-1 2002 2)
IEC 62086-1 - 1) Electrical apparatus for explosive gas
atmospheres - Electrical resistance
trace heating - Part 1: General and
testing requirements
- -
ISO 48 - 1) Rubber, vulcanized or thermoplastic
Determination of hardness (hardness
between 10 IRHD and 100 IRHD)
- -
ISO 178 - 1) Plastics - Determination of flexural
properties
EN ISO 178 1996 2)
ISO 179 - 1) Plastics - Determination of Charpy
impact strength
EN ISO 179 1996 2)
ISO 262 - 1) ISO general-purpose metric screw
threads
Selected sizes for screws, bolts and
nuts
-
ISO 273 - 1) Fasteners - Clearance holes for bolts
and screws
EN 20273 1991 2)
ISO 286-2 - 1) ISO system of limits and fits
Part 2: Tables of standard tolerance
grades and limit deviations for holes
and shafts
EN 20286 1993 2)
ISO 527-2 - 1) Plastics - Determination of tensile
properties
Part 2: Test conditions for moulding and
extrusion plastics
EN ISO 527-2 1996 2)
ISO 965-1 - 1) ISO general-purpose metric screw
threads - Tolerances
Part 1: Principles and basic data
- -
ISO 965-3 - 1) ISO general purpose metric screw
threads - Tolerances - Part 3:
Deviations for constructional threads
- -
ISO 1817 - 1) Rubber, vulcanized - Determination of
the effect of liquids
- -
ISO 4014 - 1) Hexagon head bolts - Product grades A
and B
EN ISO 4014 2000 2)
ISO 4017 - 1) Hexagon head screws - Product grades
A and B
EN ISO 4017 2000 2)
ISO 4026 - 1) Hexagon socket set screws with flat
point
EN ISO 4026 2003 2)
EN 60079−0:2004
ISO 4027 - 1) Hexagon socket set screws with cone
point
EN ISO 4027 2003 2)
ISO 4028 - 1) Hexagon socket set screws with dog
point
EN ISO 4028 2003 2)
ISO 4029 - 1) Hexagon socket set screws with cup
point
EN ISO 4029 2003 2)
ISO 4032 - 1) Hexagon nuts, style 1 - Product grades
A and B
EN ISO 4032 2000 2)
ISO 4762 - 1) Hexagon socket head cap screws -
Product grade A
EN ISO 4762 1997 2)
ISO 4892-1 - 1) Plastics - Methods of exposure to
laboratory light sources
Part 1: General guidance
EN ISO 4892-1 2000 2)
ANSI/UL 746B - 1) Polymeric Materials - Long-Term
Property Evaluations
- -
EN 60079−0:2004
Bibliography
IEC 60079-12, Electrical apparatus for explosive gas atmospheres – Part 12: Classification of
mixtures of gases of vapours with air according to their maximum experimental safe gaps and
minimum igniting currents
IEC 60079-14, Electrical apparatus for explosive gas atmospheres – Part 14: Electrical
installations in hazardous areas (other than mines)
IEC 60079-17, Electrical apparatus for explosive gas atmospheres – Part 17: Inspection and
maintenance of electrical installations in hazardous areas (other than mines)
IEC 60079-19, Electrical apparatus for explosive gas atmospheres – Part 19: Repair and
overhaul for apparatus used in explosive atmospheres (other than mines or explosives)
IEC 60079-20, Electrical apparatus for explosive gas atmospheres – Part 20: Data for
flammable gases and vapours, relating to the use of electrical apparatus
ISO/IEC DIS 17000, Conformity assessment – General vocabulary
Ramesh Patel
Ramesh Patel is a well known figure in the flame proof industry
He was the marketing director of FLAMEPROOF CONTROL GEARS PRIVATE LIMITED
When the family went into a joint venture with CEAG, Rameshbhai parted company to start FCG POWER INDUSTRIES in the year 1998
FCG POWER INDUSTRIES became an ISO 9001 Certified company in the year 1999 (NQA Certified)
FCG POWER INDUSTRIES soon became FCG POWER INDUSTRIES PVT. LTD.
Today FCG POWER is the dominant player in the flameproof industry
FCG POWER is now an UL Registered firm.
FCG POWER sought to consolidate its strength in Quality Control
With a state of the art tool room
in-house foundry for sand, gravity and pressure die casting
Vertical CNC machining center and CNC Turning Center -
more
more
INDIAN FLAMEPROOF MANUFACTURERS ASSOCIATION
Ramesh Patel took on the mantle of Secretary of IFMA.
There were many problems faced by the Indian Flameproof Industry
Through the auspices of IFMA, Rameshbhai with the assistance of BK Gupta of Ex PROTECTA and other committee members, got rid of many bureaucratic hurdles to create a level playing field for the Industry to face global competition.
Today BIS has adopted the IEC Ex Scheme
He was the marketing director of FLAMEPROOF CONTROL GEARS PRIVATE LIMITED
When the family went into a joint venture with CEAG, Rameshbhai parted company to start FCG POWER INDUSTRIES in the year 1998
FCG POWER INDUSTRIES became an ISO 9001 Certified company in the year 1999 (NQA Certified)
FCG POWER INDUSTRIES soon became FCG POWER INDUSTRIES PVT. LTD.
Today FCG POWER is the dominant player in the flameproof industry
FCG POWER is now an UL Registered firm.
FCG POWER sought to consolidate its strength in Quality Control
With a state of the art tool room
in-house foundry for sand, gravity and pressure die casting
Vertical CNC machining center and CNC Turning Center -
more
more
INDIAN FLAMEPROOF MANUFACTURERS ASSOCIATION
Ramesh Patel took on the mantle of Secretary of IFMA.
There were many problems faced by the Indian Flameproof Industry
Through the auspices of IFMA, Rameshbhai with the assistance of BK Gupta of Ex PROTECTA and other committee members, got rid of many bureaucratic hurdles to create a level playing field for the Industry to face global competition.
Today BIS has adopted the IEC Ex Scheme
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