Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
14
4.2. Connecting feeding wires and grounding wire.
Before screwing the rails, the terminals (item 3) of the disconnector should be cleaned of any contamination
by a method that does not damage the silver coatings. It is recommended to use a soft, lint-free cloth for this
purpose. Next, one should lubricate the contact surfaces of terminals and rails with a thin layer of acid-free
vaseline or other conductive grease. The screws (item 2) should be tightened carefully with a torque of 62 Nm
using two wrenches. When tightening the screws, caution must be maintained to not change the settings of
the disconnector itself. Slight change to the position of the terminal may cause the apparatus to work improp-
erly.
The earthing conductor should be connected by using a screw (item 4) (torque 54 Nm) placed in the earthing
point located on the shelf of the disconnector's base frame. The earthing point must be previously greased
with acid-free vaseline.
4
3
2
1
1.
Rail
2.
Terminal’s screw
3.
Terminal
4.
Earthing terminal screw
Figure 10 Screwing the rails and earthing
conductor
