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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
5 F9 p9 L( L+ _ Fvarnished-cloth tubing, phenolic, vulcanized fiber or the equivalent under the clamp, if the strain relief6 S' F$ Q, o: H% w; x2 F: O
assembly complies with the requirements in 54.3. Thermoplastic tubing is not acceptable over
: O! N' J2 V5 Ythermoplastic cords.
% M) x' R5 a$ L. g) RException: A non-metallic clamp may be used on Types SPT-1, SPT-2, SVT, and SVTO flexible cords/ v. y7 C! c6 @$ [4 s! O: ?
without tubing, fiber or equivalent protection under the clamp if it complies with the requirements in 54.3.) e# z9 ^8 Q1 T) E' r; O+ @
) O$ Z: t- O" p, S% v/ Q9 o. J O; H
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 g; o/ O4 h1 N0 M- y+ q: d. _
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