The temperature rise of the end of the contact box at the end of the line under long-term operation does not exceed 65 ℃ under the rated electricity;
The experience of lead-out final call not more than 65 °C if the contact box is used for long time in rate Current con The wall-piercing sleeve is used to increase the insulation function of the mother-row in the cabinet and play a certain supporting role. In the middle, in the end.
3) Insulators only act as support, sometimes using a belt point sensor directly instead of an insulator as well as as as sensors.

Current	Bus-bar
630A	70*10
1250A	133*18

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