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Magnefix MD4
14
991.184 G01 03
2.2.2
Safety features
The switchgear is provided with the following safety
features:
All-round insulation protecting against touching live
parts.
Mechanical interlocks prohibiting faulty switching
operations.
Visible isolation between busbar and cable (the switch
caps have been visibly removed).
Facilities for earthing cables and transformers.
2.2.3
Use of safety features
Keep the insulation (i.e. the outside of the switchgear)
in a perfectly clean and dry condition.
Replace mechanical interlocks as quickly as possible
if they do not perform optimally.
Cover switched-off cast-resin insulated members that
may still be live, and put-up a warning notice.
Keep earthing caps and earthing cables in perfect
condition. Make sure that the earthing points on the
upright or wall-mounted frame are free from corrosion
and oxidation, and that they are conductively
connected to earth.
2.2.4
Carrying out work
W
ARNING
•
ALWAYS check that the equipment is dead.
•
Fit suitable earthing.
•
NEVER approach an unearthed installation.
•
Always work on dead installations.
Ensure maintenance work is carried out in good time, in
accordance with the instructions in this manual.
Replace worn and/or damaged parts only with genuine
Eaton spare parts, or spare parts approved by Eaton.
Take the following minimum precautions when carrying out
work:
Working on live or partly live installation:
Eaton advises, for the necessary safety, never to work
on live or partly live installations. This is described in
NEN 3840 Operation of electrical installations - High
Voltage, Chapter 6.2.
Working on a dead installation:
After switching off a panel, IMMEDIATELY fit a set of
covers to the open switches or fuse holders.
ALWAYS check that the equipment is dead.
Fit earthing; work on earthed panels only.
When performing measurements check that the
vacuum circuit-breaker is switched on and interlocked.
When re-commissioning
Check that all work in the immediate area has been
completed.
Check (if appropriate) that all related work in other
areas has been completed.
Verify the safety of all persons involved.
Remove safety earthing and other safety features.
2.2.5
Safety markings
Fitted to the front of the dust hood placed over the
switchgear is a sign displaying:
PLACE
CAP
SLOWLY
AGAINST
STOP
THEN
PUSH
ON
ENERGETICALLY
The following signs indicate possible dangers:
Dangerous electrical voltage.
Electrical safety earth.