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A19790414说的条文:
8 @: x6 e7 J* \ x% A$ D6.9.6 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).
1 s, R$ g# J9 r5 a$ rsnugly fitting woven glass fiber sleeving 应该是指那种表面织有玻纤套管的电线。0 P* n3 |4 `$ l1 ~* ?% w& x
另外
& {& \: q& e9 u2 m* `5.18.1 Thermal insulation shall be fire-resistant material, such as glass fiber, inorganic material, or polymeric material.+ N( `( O' q, ^; [6 U' C
可见,就算不含硅胶,玻纤套管还是有隔热作用。 |
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