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A19790414说的条文:
9 Z" D7 t6 {6 A% j6.9.6 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).+ {* s) I8 q7 d/ j
snugly fitting woven glass fiber sleeving 应该是指那种表面织有玻纤套管的电线。3 o! D3 B9 P/ k
另外
; g2 _, \5 Z% z) X. n5.18.1 Thermal insulation shall be fire-resistant material, such as glass fiber, inorganic material, or polymeric material.3 [/ o$ w8 K: }- h% V. m, @+ x
可见,就算不含硅胶,玻纤套管还是有隔热作用。 |
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