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11.3.2 A clamp may be used on Types SPT-1, SPT-2, SVT and SVTO flexible cords protected by* {7 s4 A/ C% Y( z
varnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief
- G) W( |: t- e6 Qassembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over) w K, q8 C2 S! L5 C: Z; g2 u: i
thermoplastic cords.6 F- l! h7 f' b, J {
Exception: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords
e; [- @; G4 K) h& kwithout tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.8 B' N! n# G4 v) g6 G2 N5 [
3 ]2 D8 [5 O+ P; \8 j
11.3.2说如果加绝缘套就可以直接使用在SPT-1, SPT-2, SVT and SVT，但是Exception说的很明确，如果是非金属的clamp，就不需要加绝缘套了，那么金属Clamp是必须加绝缘套的，而且满足54.3的测试即可。
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发表于 2012-11-27 20:08
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