INSTALLATION
REV6 /REV5 OI 248 (EN) 25
6.4.2 Pole Column
The pole columns can be equipped with two different types of insu-
lators: composite or porcelain insulators.
This means that they need to be handled differently.
The two types of insulators can be identified as follows:
Composite insulators
- Flexible sheds
Porcelain insulators
- Rigid sheds
Oil and cleaning additives attack the silicone surface of the insu-
lator.
Therefore:
- Clean and wash the silicone shielding using only water or
isopropyl alcohol.
Due to damage that may have occurred during transport, a visual
inspection of the insulators' condition is required before every in-
itial filling and commissioning, as well as after maintenance work
or any other actions.
Therefore:
- all present persons must take cover or
- comply with the following minimum distance:
for porcelain insulators: approx. 50 m
for composite insulators: the height of the device
(measured from ground level to the upper edge device)
The filling gas must be used purs. to IEC 60376.
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