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A19790414说的条文:8 \: w) z" F9 j9 i3 y
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).
# c2 O5 v' p- r& Vsnugly fitting woven glass fiber sleeving 应该是指那种表面织有玻纤套管的电线。. `5 {7 Z4 I% d m: b5 s3 t2 R
另外) F9 h" _4 ?- ~" l1 H5 P& A, ?
5.18.1 Thermal insulation shall be fire-resistant material, such as glass fiber, inorganic material, or polymeric material., r9 B) a( w+ D
可见,就算不含硅胶,玻纤套管还是有隔热作用。 |
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