13.320;17.060;29.260.20 标准查询与下载

NF C23-560-3:2005 可燃气体的检测和测量用电气设备.第3部分:指示空气中甲烷的体积百分率最大为100%的I类设备的性能要求

Electrical apparatus for the detection and measurement of flammable gases - Part 3 : performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air.

NF C23-560-4:2005 可燃气体的检测和测量用电气设备.第4部分:指示低爆炸物极限的体积百分率最大为100%的II类设备的性能要求

Electrical apparatus for the detection and measurement of flammable gases - Part 4 : performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit.

NF C23-560-5:2005 可燃气体的检测和测量用电气设备.第5部分:指示气体的体积百分率最大为100%的II类设备的性能要求

Electrical apparatus for the detection and measurement of flammable gases - Part 5 : performance requirements for group II apparatus indicating a volume fraction up to 100 % gas.

NF C23-560-1:2005 可燃气体的检测和测量用电气设备.第1部分:一般要求和试验方法

Electrical apparatus for the detection and measurement of flammable gases - Part 1 : general requirements and test methods.

NF C23-560-2:2005 可燃气体的检测和测量用电气设备.第2部分:指示空气中甲烷的体积百分率最大为5%的I类设备的性能要求

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.

BS EN 61779-1:2000 可燃性气体的检测和测量用电气装置.一般要求和试验方法

1 This part of IEC 61779 specifies general requirements for construction and testing and describes the test methods that apply to portable, transportable and fixed apparatus for the detection and measurement of flammable gas or vapour concentrations with air. The apparatus, or parts thereof, are intended for use in potentially explosive atmospheres (see 2.1.8) and in mines susceptible to firedamp. This standard is supplemented by the following standards, concerning the specific requirements for the performance of the various types of apparatus: IEC 61779-2: Performance requirements for group I apparatus indicating up to a volume fraction of 5 % methane in air IEC 61779-3: Performance requirements for group I apparatus indicating up to a volume fraction of 100 % methane in air IEC 61779-4: Performance requirements for group II apparatus indicating up to a volume fraction of 100 % lower explosive limit IEC 61779-5: Performance requirements for group II apparatus indicating up to a volume fraction of 100 % gas Note deleted NOTE 1 - Group I and group II apparatus indicating up to a volume fraction of 100 % methane and group II apparatus indicating up to a volume fraction of 100 % gas are suitable for use only with the specific gases for which they have been calibrated. NOTE 2 - For the purpose of this standard, the terms "lower flammable limit (LFL)" and "lower explosive limit (LEL)" are deemed to be synonymous, and likewise the terms "upper flammable limit (UFL)" and "upper explosive limit (UEL)" are deemed to be synonymous. For ease of reference, the two abbreviations LFL and UFL may be used hereinafter to denote these two sets of terms. It should be recognized that particular authorities having jurisdiction may have overriding requirements that dictate the use of one of these sets of terms and not the other. 2 This standard is applicable when an apparatus manufacturer makes any claims regarding any special features of construction or superior performance that exceed these minimum requirements. All such claims shall be verified and the test procedures shall be extended or supplemented, where necessary, to verify the claimed performance. The additional tests shall be agreed between the manufacturer and test laboratory. 3 This standard is applicable to flammable gas detection apparatus intended to provide an indication, alarm or other output function, the purpose of which is to give a warning of a potential explosion hazard and, in some cases, to initiate automatic or manual protective action(s). 4 This standard is applicable to apparatus, including the integral sampling systems of aspirated apparatus, intended to be used for commercial and industrial safety applications. 5 This standard does not apply to external sampling systems, or to apparatus of laboratory or scientific type, or to apparatus used only for process control purposes.

Electrical apparatus for the detection and measurement of flammable gases - General requirements and test methods

BS EN 61779-2:2000 可燃性气体的检测和测量用电气装置.指示空气中甲烷含量达到体积分率为5%时I组装置的性能要求

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. 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 %.

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

BS EN 61779-3:2000 可燃性气体的检测和测量用电气装置.指示空气中甲烷含量达到体积分率为100%时I组装置的性能要求

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. 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 %.

Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air

BS EN 61779-4:2000 可燃性气体的检测和测量用电气装置.指示低爆炸极限达到体积分率为100%时II组装置的性能要求

1 This part of IEC 61779 specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). The requirements and test methods applicable to the apparatus covered by this standard are specified in part 1. 2 This standard is restricted to apparatus intended for the detection and measurement of combustible gas or vapour concentrations with air up to 100 % lower explosive limit (LEL).

Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group II apparatus indicating a volume fraction up to 100% lower explosive limit

BS EN 61779-5:2000 可燃性气体的检测和测量用电气装置.指示体积分率达到100%时II组装置的性能要求

1 This part of IEC 61779 specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). The requirements and test methods applicable to the apparatus covered by this standard are specified in part 1. 2 This standard is restricted to apparatus intended for the detection and measurement of volume ratios of combustible gas or vapour in air in volume fractions from 0 % to 100 % . NOTE 1 - Apparatus covered by this standard will normally be intended to operate in volume ratios greater than 100%LEL. NOTE 2 - Although apparatus of the types covered by this standard may be suitable for detecting a wide range of combustible gases, particular gases (e.g. methane or propane) are specified in part 1 as the components of the test gases for the purpose of practical convenience. The performance requirements specified in this standard should therefore be considered with caution when the apparatus is used to detect other combustible gases, as some parameters - such as time of response - will be modified.

Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group II apparatus indicating a volume fraction up to 100% gas