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Question6 \$ x) L- [* O- z: E
What are the sample requirements for power cables for rated voltages from 6kV (Um=7.2kV) up to: N; H& O1 ~) m( v2 y2 U
30kV (Um=36kV) per IEC 60502-2?% x5 M) T1 e+ L8 C9 m. `& b) |
Decision
9 j( p% [# y" t, EThe sample requirements for each type of cables per IEC 60502-2 shall be as follows:
$ s" S" J+ F" c) ?6 U, H. U# V1 sample of three cores with the maximum cross-section and the highest rated voltage;6 B2 H0 N, l$ u; m( w, q3 j3 O
1 sample of three cores with the cross-section in the range of 95mm2~630mm2;0 i: ~3 V" b' R0 T2 V' f
If the scope of application includes copper conductor and aluminum conductor simultaneously, above B0 z6 S k' H$ m
2 samples shall be 1 sample with copper conductor and 1 sample with aluminum conductor.9 t, N8 x/ a* o: x# Q8 U6 J' D
In addition, for those cables with or without armor, armored cables can cover the un-armored cables.8 @8 P: k5 t* y7 d7 l. h6 n x* K
Different type of armor shall be regards as different type.* N) y% |& \5 `/ b/ N8 b
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