|
|
請教UL 817 以下標準的中文意思？- F5 T c P, S" y( j& t' c
這抗電弧測試是否只針對連接器呢 ？) Q c1 G6 b+ H2 N+ [4 R; `
6 V& S @: H9 M& o7 Q4 g14.7 Resistance to arcing test
2 a; w3 e# I5 q( C V3 z14.7.1 The connector fittings that were subjected to 50 cycles of operation in the Overload test described
9 `3 t2 k1 Z* F; ~in 14.4 shall perform acceptably when subjected to an additional 200 cycles of operation under the+ a& x# s; |9 ~3 c
overload test conditions following the temperature test and the repeated retention of plugs test.
! ]+ V! o/ }) [; c3 z" J' `1 y14.7.2 Alternatively, six representative connector fittings may be subjected to the 50 cycles of operation
4 Z8 Q7 Y& C7 x: Win the Overload test described in 14.4, followed by the Temperature test and repeated Retention of blades
5 A: P; H p' d8 E! O) S0 jtest on the connector fittings, and then, to determine resistance to arcing, a second, previously untested
5 F' ^7 I, e! Z8 G4 Jset of connector fittings may be subjected to 250 cycles of operation under the overload-test conditions./ ?) X* |" G; n
14.7.3 The attachment plug used for this test may be changed after every 50 operations. There shall not
, H3 R+ Z- r# n! K& w) ebe any sustained flaming of the material in excess of five seconds duration. There shall not be any- C: M; { n( l- s
electrical tracking or the formation of a permanent carbon conductive path that results in a dielectric h; t7 I A. M. y) ~
breakdown, as determined by the application of a 60 Hz essentially sinusoidal potential of 1500 V
0 P0 j! ]0 o- c' e0 C4 h |
|
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2016-6-18 17:07
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
发表于 2016-7-19 15:38
