ABB MWD Manuale di istruzioni per l'uso - Pagina 11
Sfoglia online o scarica il pdf Manuale di istruzioni per l'uso per Dispositivo di protezione ABB MWD. ABB MWD 16. Surge arresters
Stampa la pagina
5.4.4
Transportation during mounting
Depending on weight and installation location of the surge arrester, a crane may be
necessary for mounting. The crane ropes can be fastened in the following ways, depending
on the surge arrester model:
Fastening to accessories
Fastening to accessories
Hook the rope as shown in Figure 1.
X
Fastening via ring bolt
Remove top accessories from surge arrester.
X
Screw the ring bolt into threaded hole M16x25.
X
Hook the rope as shown in Figure 2.
X
Fastening to grading ring
Hook the three ropes in the three supports of the grading ring and the hook of the crane
X
as shown in Figure 3.
5.4.5
Installation position
CAUTION!
Deposits on the undersides of sheds
Conductivity of deposits hinders protective function of the POLIM® and MWK/MWD type
surge arresters.
Always mount surge arresters in a way that the sheds point downward.
X
The top and bottom connections could be either ground or high-voltage terminals as long
as the sheds point downwards. In case of doubt please consult ABB.
1HC0141361 AA | EN | Operating instructions
Figure 1
Fastening via ring bolt
(if fastening to accessories
is not possible)
Figure 2
Fastening to grading ring
(if present)
Figure 3
| 11