10
Empty enclosures GHG 716; industrial
6.3 Earth
connection
6.3.1
External earth connection
Fig. 3
The external earth connection of the enclosure is made via the external
earth lugs - marked with (
).
The screws shall be tightened in compliance to the thread diameter
(see technical datas, test torques).
6.3.2
Internal earth connection
Fig. 4
The internal earth connection of the enclosure is made via the internal
earth lugs - marked with (
).
The screws shall be tightened in compliance to the thread diameter
(see technical datas, test torques).
6.4 Closing
of
enclosure
Any foreign matter shall be removed from the apparatus.
In order to ensure the required minimum protection category, the cover
screws are to be tightened down.
Overtightening might impair the protection category.
6.4.1 Closing of enclosure without cover hinges
Align the cover with the base.
Screw in the enclosure screws and tighten them diagonally (test torque
see technical data).
6.4.2 Closing of enclosures with hinged covers
Fig. 5
- Hold the cover tightly with one hand.
- First release the lower and then the upper retension springs with the
other hand.
- Close the enclosure cover.
- Press the enclosure cover onto the base.
- Screw in the enclosure screws and tighten them diagonally.
(Test torque see Technical data)
6.5
Taking into operation
Prior to taking the apparatus into operation, the tests specified in the
relevant national regulations will have to be carried out.
Apart from that, the correct functioning and installation of the apparatus
in accordance with these operating instructions and other applicable
regulations will have to be checked.
Incorrect installation and use of the empty enclosure can
invalidate the guarantee.
GB
Fig. 3
Fig. 4
1
2
3
Fig. 5
