International Standards and Conformity Assessment for all electrical, electronic and related technologies

SC 31G

Intrinsically-safe apparatus

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

SC 31GPT 60079-39 Dr. Ing. Udo GerlachPPUB 2021

History

Stage
Document
Downloads
Decision Date
Target Date
PNW
31G/206/NP PDF file 1475 kB
2011-01-21 
ANW
31G/212/RVN PDF file 240 kB
2011-04-292011-06
1CD
31G/221/CD PDF file 1362 kB
2012-11-302012-12
CDM
31G/222/CC Word file 584 kB
PDF file 419 kB
2013-03-082013-04
A2CD
31G/222A/CC Word file 621 kB
PDF file 464 kB
2013-05-172013-04
2CD
31G/229/CD PDF file 893 kB
2013-11-152013-11
CDM
31G/232/CC Word file 301 kB
PDF file 157 kB
2014-02-282014-03
ACDV
31G/232A/CC Word file 186 kB
PDF file 135 kB
2014-05-302014-04
CDTS
31G/236A/DTS PDF file 1302 kB
PDF file 1404 kB
2014-08-012014-07
DECPUB
2015-04-302015-04
APUB
31G/242/RVC Word file 320 kB
PDF file 207 kB
2015-05-012015-02
BPUB
2015-05-11 
RPUB
2015-05-12 
PPUB
2015-06-11 
  

Abstract

IEC TS 60079-39:2015(E) specifies the construction, testing, installation and maintenance of Power-i apparatus and systems which utilise electronically controlled spark duration limitation to maintain an adequate level of intrinsic safety. This Technical Specification contains requirements for intrinsically safe apparatus and wiring intended for use in explosive atmospheres and for associated apparatus intended for connection to intrinsically safe circuits entering such atmospheres. This Technical Specification excludes the level of protection "ia" and the use of software-controlled circuits. This Technical Specification applies to electrical equipment utilising voltages not higher than 40 V d.c. and a safety factor 1,5 for Groups IIB, IIA, I and III. It is also applicable to Group IIC "ic" apparatus with a safety factor 1,0. Group IIC "ib" apparatus with a safety factor 1,5 are restricted to voltages up to 32 V d.c. This type of protection is applicable to electrical equipment in which the electrical circuits themselves are incapable of causing an explosion of the surrounding explosive atmospheres. This Technical Specification is applicable to intrinsically safe apparatus and systems which utilise electronically controlled spark duration limitation with the aim of providing more electrical power while maintaining an adequate level of safety. This Technical Specification is also applicable to electrical equipment or parts of electrical equipment located outside hazardous areas or protected by another type of protection listed in the IEC 60079 series, where the intrinsic safety of the electrical circuits in explosive atmospheres depends on the design and construction of such electrical equipment or parts of such electrical equipment. The electrical circuits located in the hazardous area are evaluated for use in such locations by applying this Technical Specification. This Technical Specification supplements and modifies the requirements of IEC 60079-0, IEC 60079-11, IEC 60079-14, IEC 60079-17 and IEC 60079-25. Keywords: Power-i apparatus, intrinsically safe apparatus and wiring intended for use in explosive atmospheres

Project

IEC TS 60079-39:2015 ED1

Explosive atmospheres - Part 39: Intrinsically safe systems with electronically controlled spark duration limitation

 

 

Associated Documents:

31G/273/RQ

PDF file 155 kB
31G/272/Q

PDF file 152 kB
Word file 22 kB
31G/266/INF

PDF file 119 kB
Word file 58 kB
31G/264/DC

PDF file 107 kB
31G/220/RM

PDF file 165 kB
SMB/5155/DL

PDF file 207 kB
SMB/4881/DL

PDF file 348 kB