序 號 Serial number | 項 目 Items | 技術性能 Technical performances |
1 | 線芯直流電阻(≤Ω/Km) Core DC resistance | 見上表 See above table |
2 | 絕緣電阻(≥MΩ Km) Insulating resistance | 見上表 See above table |
3 | 5min工頻電壓試驗 5min power frequency voltage experiment | 0.66/1.14 | 3.7KV工頻電壓絕緣不擊穿 3.7KV power frequency voltage insulation does not penetrate |
0.38/0.66 | 3KV工頻電壓絕緣不擊穿 3KV power frequency voltage insulation does not penetrate |
0.3/0.5 | 2KV工頻電壓絕緣不擊穿 2KV power frequency voltage insulation does not penetrate |
控制線芯Control core | 1.5KV工頻電壓絕緣不擊穿 1.5KV power frequency voltage insulation does not penetrate |
4 | 熱延伸試驗 The heat extends the experiment | ≤175% |
5 | 單根垂直燃燒試驗 Single wire burning test | MT386 |
6 | 成束燃燒試驗 Group burning test | *大線芯截面積在50mm2及以上時 符合A類成束燃燒試驗要求 Max. core sectional area more than 50mm2conforms A kind group burning test |
7 | *大線芯截面積在50mm2及以下時 符合B類成束燃燒試驗要求 Max. core sectional area more than 50mm2conforms B kind group burning test |