AS/NZS IEC 60332.3.25:2017 Tests on electric and optical fibre cables under fire conditions - Part 3.25: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category D
- AS/NZS IEC 60332.3.25:2017
- Valid from
- Information provider
- Standards New Zealand
- Standards Australia, Standards New Zealand, International Electrotechnical Commission
- Information type
- New Zealand Standard
- PDF, Hard copy
This Standard specifies method of test for the assessment of vertical flame spread of vertically-mounted bunched wires or cables, electrical or optical, under defined conditions.
The test is intended for type approval testing. The requirements for the selection of cables for testing are given. The flame spread is measured as the extent of damage of the cable sample.
This procedure may be used to demonstrate the ability of the cable to limit flame spread. Covers category D and relates only to small cables of overall diameter 12 mm or smaller installed on the test ladder to achieve a nominal total volume of non-metallic material of 0,5 l/m of test sample. The flame application time is 20 min.
The method of mounting uses the front of the standard ladder in touching formation only. The category is intended for use with small cables where very low volumes of non-metallic material are required to be evaluated. A recommended performance requirement is also given.
Identical to and reproduced from IEC 60332-3-25, Ed 1.1:2008.