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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
0 W) s" q$ y6 B; Z" w. l( gvarnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief7 I% _5 W! E( S) f
assembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over( z5 h% \9 F y* h+ A( ^
thermoplastic cords.0 W0 P4 Z. g! Z3 p/ \, X( z
Exception: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords
' _# s U( X+ T; r G, j" Q twithout tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.
1 X" B6 z6 e6 m) @0 q) Q: l; W: ~. H6 G
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。 F. S- u/ B/ X8 G) o
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