IEC 60331-2-2018 在火焰条件下电缆的线路完整性试验--第2部分：额定电压0.6/1.0kV及以下、总直径不大于20mm电缆在温度不低于830℃冲击火焰下的试验方法 Tests for electric cables under fire conditions – Circuit integrity – Part 2: Test method for fire with shock at a temperature of at least 830 °C for

This part of IEC 60331 specifies the test method for cables which are required to maintain 
circuit integrity when subject to fire and mechanical shock under specified conditions. 
This document is applicable to cables of rated voltage not exceeding 600 V/1 000 V, including 
those of rated voltage below 80 V, metallic data and telecom cables and optical fibre cables. 
It is intended for use when testing cables of not greater than 20 mm overall diameter. 
Cables of larger diameter are intended to be tested using the apparatus, procedure and 
requirements of IEC 60331-1. 
This document includes details for the specific point of failure, continuity checking 
arrangement, test sample, test procedure and test report relevant to electric power and 
control cables with rated voltage up to and including 600 V/1000 V. Details for the specific 
point of failure, continuity checking arrangement, test sample, test procedure and test report 
relevant to metallic data and telecom cables and optical fibre cables are not given by 
IEC 60331-2. 
Although the scope is restricted to cables with rated voltage up to and including 0,6/1,0 kV, 
the procedure can be used, with the agreement of the manufacturer and the purchaser, for 
cables with rated voltage up to and including 1,8/3 (3,3) kV, provided that suitable fuses are 
used. 
Annex A provides the method of verification of the burner and control system used for the 
test. 
Requirements are stated for an identification that may optionally be marked on the cable to 
signify compliance with this standard. 
CAUTION – The test given in this standard may involve the use of dangerous voltages 
and temperatures. Suitable precautions should be taken against the risk of shock, 
burning, fire and explosion that may be involved, and against any noxious fumes that 
may be produced.dition 2.0 2018-03 INTERNATIONAL STANDARD GROUP SAFETY PUBLICATION Tests for electric cables under fire conditions – Circuit integrity – Part 2: Test method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm IEC 60331-2:2018-03(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2018 IEC