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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 U7 I/ |3 @) h! N
varnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief
% S6 A$ z6 L- H3 g+ \5 nassembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over
; m- ~% v) x2 f( A0 @9 a: s4 {" Bthermoplastic cords.
; N. X7 x/ T' v( D, aException: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords. H* q2 Q7 D0 X1 I# z& K9 ?+ I2 F
without tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.( M) z4 D7 O" b Q6 |. G! W
% R8 H( {) j" X1 b1 | H0 r11.3.2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。$ v) q8 s' y) e# b
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