|
11.3.2 A clamp may be used on Types SPT-1, SPT-2, SVT and SVTO flexible cords protected by7 W" n0 B7 O$ J0 x7 k! m) M! N* u2 ^
varnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief& `& X; T# ]+ D0 m
assembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over' U1 q' m4 X/ h0 U* P" Z
thermoplastic cords.6 W* s4 F/ c# f/ ?
Exception: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords6 O, c+ g% D& S
without tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.
7 V1 n! W2 O% w8 c/ O c$ L3 O8 I: v# h5 r& Y# y2 z# S
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。
9 |3 f+ L1 N2 G0 j |
|