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A19790414说的条文:- q3 U, O; f# A! t9 @" q
6.9.6 An insulated conductor, including each insulated conductor of a cord, that is rated for 90 °C, 105°C, or 125 °C shall be considered as rated for 150 °C if each conductor is individually provided with supplemental insulation consisting of snugly fitting woven glass fiber sleeving having at least a 0.25 mm (0.010 in) wall thickness or at least two layers of glass fiber tape that provide a total thickness of at least 0.25 mm (0.010 in).6 ?7 I% ?+ R3 b& ?/ M
snugly fitting woven glass fiber sleeving 应该是指那种表面织有玻纤套管的电线。
9 V0 [0 u+ n& A5 G另外) F: M" M7 h; m1 ?, Z8 M' j. \
5.18.1 Thermal insulation shall be fire-resistant material, such as glass fiber, inorganic material, or polymeric material." P5 Q; k1 a% ]
可见,就算不含硅胶,玻纤套管还是有隔热作用。 |
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