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附UL2556标准相关章节:
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4 Insulation and jacket materials tests
$ j/ s" U6 a, d/ X4 M& A k# M9 N3 E4.1 Thickness
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4.1.4.2.1 Averaging method4 `0 j$ T* B# K4 t# Y0 i' a
The minimum and maximum thickness shall be determined using the procedures described in Clause. v2 f% q: p& [7 d
4.1.4.1.1 or 4.1.4.1.2. For insulation, measurements shall be made within the irregularities resulting from
7 ]3 L5 @7 P9 `conductor stranding. For extruded-to-fill jackets, all measurements shall be made within the irregularities
; t; d+ z8 {2 @+ x5 V/ sresulting from the conductors. If the pin described in Clause 4.1.4.1.1 does not fit within the irregularities,1 t6 }! h& P" [
this method is not applicable. |
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