IEC 61779-2:1998
可燃性气体的检测和测量用电气设备 第2部分:I类设备(指示空气中甲烷的体积百分率最大为5%)的性能要求

Electrical apparatus for the detection and measurement of flammable gases - Part 2: Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air

作废

标准号

IEC 61779-2:1998

发布

1970年

发布单位

国际电工委员会

 

 

代替标准

IEC 60079-29-1:2007

适用范围

1 This part of IEC 61779 specifies requirements for group I (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, are intended for use in mines susceptible to firedamp. The requirements and test methods applicable to the apparatus covered by this standard are specified in part 1. NOTE - The use of group I apparatus may not be permitted without the additional and prior approval of the relevant authority in mines under its jurisdiction, see note 1 of 1.1.1 of part 1. 2 This standard is restricted to apparatus intended for the detection and measurement of volume ratios of methane in air from a volume fraction of 0 % up to, but not exceeding, a volume fraction of 5 %.

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