High-voltage Disconnector Installation Standards, These Are The Things You Can't Forget

The installation height of the manual operating mechanism should be 1.0~1.1m from the ground. If the ground of the operating site is uneven, it should be leveled.
high voltage isolator The operating mechanism should be intact and locked, and the rotating part should be lubricated. When operating high voltage isolator switch, it should be smooth and correct without blocking and impact. hv isolator with grounding knife switch, there should be a locking device between the main knife switch and the grounding knife switch to ensure that the grounding knife switch can be closed only after the main knife switch is disconnected, and the main knife switch can be closed only after the grounding knife switch is disconnected.
hv isolator switch The supporting insulator should be clean and free of damage and discharge marks, and the glaze peeling area should not exceed 300mm.
The newly installed high voltage electrical isolator should be subjected to AC withstand voltage test before being put into operation. During operation, the primary insulation resistance should be measured once a year with a 2500V megohmmeter. Compared with the previous measurement result, isolator high voltage should not be significantly reduced.