Surge arrester with disconnecting device
DANGER!
Tripping of disconnecting device
Risk of injury due to inappropriate handling.
X
Do not expose the disconnecting device to temperatures above 60 °C (for exceptions, see
specific product documentation).
X
Never try to open the disconnecting device.
X
Do not connect any voltage/energy source to the terminals of the disconnecting device.
X
Mount the insulating bracket at vertical surface (wall, column, tower).
X
Use a flexible connection between disconnector and earth.
X
Connect the earth conductor to the stud of the disconnecting device.
5.4.3 Mounting grading ring (POLIM-I, -S, -H only)
2
4
3
5
1 Connection bolt
2 Cover
3 Support
4 Grading ring
5 Countersunk screw
If your surge arrester has a grading ring, you must mount the grading ring.
X
Ensure that the surge arrester cannot topple over.
X
Place the grading ring (4) over the surge arrester with the mounting holes towards the
top.
X
Screw out the connection bolt (1) approx. 11 mm with a fork wrench.
X
Lift the cover (2) slightly.
X
Place the three supports (3) of the grading ring into the intended cut-outs between
cover (2) and surge arrester.
X
Screw in the connection bolt (1) with a fork wrench, but do not tighten it yet.
X
Screw the grading ring (4) onto the supports with countersunk screws M10 (5).
X
Tighten the connection bolt (1) to a torque of 100 Nm.
X
Tighten the countersunk screws (5) at the grading ring to a torque of 25 Nm.
10 | Operating instructions | EN | 1HC0141361 AA
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