Special Conditions For Safe Use - MEDC XB4 Manuel Technique

6.0 SPECIAL CONDITIONS FOR SAFE USE

1. For replacement purposes, the cover fixing screws shall be of stainless steel, minimum grade A4-80
2. Any cable entry device used with the equipment shall be suitable for the entry arrangement and maintain
the ingress protection level IP6X
And additionally for the Ex de versions of the beacons:-
a) Not more than one single or multiple strand lead shall be connected into either side of any terminal, unless
multiple conductors have been joined in a suitable manner, e.g. two conductors into a single insulated crimped
boot lace ferrule.
b) Leads connected to the terminals shall be insulated for the appropriate voltage and this insulation shall
extend to within 1mm of the metal of the terminal throat.
c) All terminal screws, used and unused, shall be tightened down.
d) When fitting QB insulating combs (cross connecting links) to terminal ways a further single conductor of
1.5mm2 minimum cross-sectional area may be connected to the same terminal way on top of the prong.
e) The inside edge of the insulation of the QB combs cross-connecting arm shall be in contact with the terminal
moulding.
f) When used in dust atmospheres the flame proof cable entry devices or stopping plugs shall be selected and
installed to maintain the dust tight (IP6X) integrity of the enclosure.
© Eaton MEDC Ltd 2017 01/18