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Question
6 T ~, }. { b: T% m# cWhat are the sample requirements for power cables for rated voltages from 6kV (Um=7.2kV) up to
/ X1 C- C6 T6 Z30kV (Um=36kV) per IEC 60502-2?7 t- t* L U* L9 H6 R" }
Decision
6 c/ U$ p; ]' \, q4 VThe sample requirements for each type of cables per IEC 60502-2 shall be as follows:
. x# @9 w* h: ~8 h% Z) B7 T1 sample of three cores with the maximum cross-section and the highest rated voltage；# t& N* M% j7 n3 S- \# E
1 sample of three cores with the cross-section in the range of 95mm2～630mm2；, `! I" T/ L- x/ n6 X% S( e) h1 [" M
If the scope of application includes copper conductor and aluminum conductor simultaneously, above+ J" V5 v+ D* q1 ?; m
2 samples shall be 1 sample with copper conductor and 1 sample with aluminum conductor.
' f# \% t* U0 S0 x. G3 GIn addition, for those cables with or without armor, armored cables can cover the un-armored cables.
/ t- U; J8 p- dDifferent type of armor shall be regards as different type.- p/ ]2 s" j! X/ l! V( u6 E
7 |& }& B: _3 {- U; b) C: v
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