ABB
Operating instructions for POLIM
©
-D surge arrester
Doc. 1HC0010173 AB
EN
11
5.4. Mounting
5.4.1. System
voltage
CAUTION
Incorrect system voltage
Damage to the switching gear and the surge arrester.
:
Do
not
use surge arresters intended for a.c. systems in d.c. systems.
X
Observe the "Application guidelines" from ABB Switzerland Ltd.
X
Before mounting, ensure that the characteristic data on the rating plate of the
surge arrester matches the requirements of the power system.
X
Ensure that system voltage applied at the terminals of the arrester does not
exceed the maximum permissible continuous operating voltage of the surge
arrester.
5.4.2. Installation
position
CAUTION
Deposits on the undersides of sheds
Conductivity of deposits hinders protective function of the POLIM-D .
X
Always mount surge arresters in such a way that the sheds point downward.
