Tests on electric and optical fibre cables under fire conditions - Test for vertical flame spread of vertically-mounted bunched wires or cables. Category A F/R not-eligible Construction and layout

Construction and layout

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Tests on electric and optical fibre cables under fire conditions - Test for vertical flame spread of vertically-mounted bunched wires or cables. Category A F/R not-eligible Construction and layoutWhat is this standard about? 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