Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
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3.8. Grounding of the base frames
After regulation of the disconnector and earthing knives the base frame should be grounded. Earthing connec-
tion points are marked on the disconnector base. In the case of earthing the disconnector with built-in earthing
switch, the earthing line should be connected as close as possible to the cable connecting the earthing switch
knife with the base. The arrangement of connections is shown in the next figure.
4. OPERATING MANUAL
Disconnector’s switching is achieved by using an appropriate motor or manual operating mechanisms.
4.1. Notes about connecting activities
a) While disconnector’s or its earthing switch’s manueovering all safety at work rules applicable in installa-
tion’s location should be respected.
b) Energized disconnector can be manueovered only when capacity of intermittent current will have negligi-
ble value or any significant voltage change between any pole’s contact elements would appear.
