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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
; F% g) ~1 H, Xvarnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief
K0 H! X( F; J+ t) q2 l, Hassembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over% v7 n* B; C3 R* b/ e, n
thermoplastic cords.
5 h& D0 K" p2 H- T0 u( i# pException: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords2 A* i: D3 D, w& H6 o* v* C1 u
without tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.
! I9 G4 j5 r7 M/ W; S/ _" P* o9 l2 p: w# D" ]+ d
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。! B( m( t7 O7 a' T, F
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