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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
- Y7 n. f+ S% hvarnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief5 }- i! |7 r. ?+ B7 s0 ]0 B2 M3 m
assembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over
- P! D8 S/ D* R7 Uthermoplastic cords.- [5 w0 Z: h6 B
Exception: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords
8 k: I" O* f, Iwithout tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.6 M' ^, G4 {8 W' k x
6 o4 A2 g- o; k" }+ b! o! E11.3.2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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