IEC 61779-4 : 1.0被替代
ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 4: PERFORMANCE REQUIREMENTS FOR GROUP 2 APPARATUS INDICATING UP TO 100 % LOWER EXPLOSIVE LIMIT
出版：International Electrotechnical Committee
专家解读视频
Gives requirements for group II (as defined in part 1 of this standard) portable, transportable and fixed apparatus to detect and measure combustible gas or vapour concentrations with air. Other than mines that are susceptible to firedamp, the apparatus may be installed in potentially explosive atmospheres. This standard is restricted to apparatus intended to detect and measure combustible gas or vapour concentrations with air up to 100 % lower explosive limit (LEL).
SN EN 61779-4 : 2000 - Identical
NF EN 61779-4 : 2005 - Identical
CEI EN 61779-4 : 2001 - Identical
VDE 0400-4 : 2001 - Identical
I.S. EN 61779-4:2000 - Identical
NEN EN IEC 61779-4 : 2000 - Identical
UNE EN 61779-4 : 2002 - Identical
DIN EN 61779-4 : 2001 - Identical
BS EN 61779-4 : 2000 - Identical
AS/NZS 61779.4:2000 - Identical
