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By certification 
high voltage cable box
American ordinary cable branch box design meet the safe operation, inspection, maintenance, test and operation. Simple in structure, convenient in installation, installed in the casing of the various components meet the respective technical requirements.
No |
Specification |
Branch 200A |
Branch 600A |
1 |
Rated voltage |
15KV |
15/25KV |
2 |
Rated current |
200A |
600A |
3 |
Rated short time current |
20KA/3s |
42KV |
4 |
1 minute power frequency withstand voltage |
65KV |
78KV |
5 |
15 minute DC withstand voltage |
85KV |
78KV |
6 |
Lightning impulse withstand voltage |
125KV |
125KV |
7 |
Protect level |
IP33 |
IP33 |
8 |
The minimum initial current |
11KV |
19KV |
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