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OVE EN IEC 60332-3-21:2019-06

Действует
Tests on electric and optical fibre cables under fire conditions - Part 3-21: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category A F/R (IEC 60332-3-21:2018) (english version)
This part of IEC 60332 covers category A F/R for methods of test for the assessment of vertical flame spread of vertically-mounted bunched wires or cables, under defined
conditions.
This document relates only to power cables of conductor cross-sectional area greater than
35 mm2 installed on the test ladder in a spaced configuration on the front and rear to achieve
a nominal total volume of non-metallic material of 7 l/m of test sample. The flame application
time is 40 min. This method of mounting is intended for special cable designs used in
particular installations when required in the cable specification. Category A F/R is not intended for general use.
ICS
29.020 Electrical. Including voltages, general electrical terminology, electrical documentation, electrical tables, safety, fire hazard testing, etc. / Электротехника в целом. Включая напряжение, общую терминологию, электротехническую документацию, электрические таблицы, безопасность, испытания на пожароопасность и т.д.
13.220.40 Ignitability and burning behaviour of materials and products / Воспламеняемость, поведение материалов и продуктов при горении
29.060.20 Cables / Кабели