ABB POLIM-D - 5.6. Earthing Requirements

ABB Operating instructions for POLIM
©
-D surge arrester
Doc. 1HC0010173 AB EN 13
5.5. Earthing
X Observe national regulations and the requirements of the system owner.
X Connect surge arresters to the system ground via the shortest path.
X Surge arresters equipped with disconnecting device shall be connected to
earth by a stranded wire. One side of the earth wire shall be connected to the
disconnecting device the other side shall be connected to earth nearby the
mounting position of the insulating bracket.
X Observe recommended minimum diameters for POLIM
®
-D:
Copper dia. 20 mm
2
Aluminum dia. 40 mm
2