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Question9 T% s+ a) k: }% K
What are the sample requirements for power cables for rated voltages from 6kV (Um=7.2kV) up to# m, R7 T- T1 C7 m
30kV (Um=36kV) per IEC 60502-2?# u. ], P" o0 O1 G2 h! |
Decision% k* c/ y: }: H3 h1 J9 c
The sample requirements for each type of cables per IEC 60502-2 shall be as follows:& b* }% j$ j) m6 h% f4 F5 s
1 sample of three cores with the maximum cross-section and the highest rated voltage；
* I6 d. V8 {" v& \( A2 L1 sample of three cores with the cross-section in the range of 95mm2～630mm2；) \3 `$ j j8 C. W
If the scope of application includes copper conductor and aluminum conductor simultaneously, above
% N, ~/ b/ p4 u6 G; \ t2 samples shall be 1 sample with copper conductor and 1 sample with aluminum conductor.
8 ], Q* V0 d2 q0 q9 R. [In addition, for those cables with or without armor, armored cables can cover the un-armored cables.
/ K$ A% B7 P& g4 l1 Y9 I( D- sDifferent type of armor shall be regards as different type.
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发表于 2017-1-7 11:13
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