© Siemens AG • 07/2003 9
Installing of the arrester
Attention
Danger of damage to the interior of the arrester
Ø Do not lean a ladder against the surge arrester.
The contact faces of the flanges of the arresters must be cleaned with a steel brush, if necessary.
With arresters consisting of several units the units must be placed one on top of the other in the se-
quence of their numbers marked on the rating plate [Fig. 2, Fig. 3, Fig. 6].
Attention
Danger of damage to the interior of the arrester
The contact faces [4/Fig. 6] shall be cleaned before installation.
1 lower unit
2 upper unit
3 Rating plate for unit
4 contact faces
Fig. 6 Surge arrester units
Attention
Shim plates between the individual arrester units are not allowed.
Before the top unit is located in place, it is advisable to fit the outer grading ring struts [3/Fig. 17],
[4/Fig. 17] and the terminal plate [10/Fig. 17] to the upper flange.
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