DC Inverter U-match Series Floor Ceiling Type Unit
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operation, an adequate temporary solution shall be used. This shall be
reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
(1) That capacitors are discharged: this shall be done in a safe manner
to avoid possibility of sparking;
(2) That no live electrical components and wiring are exposed while
charging, recovering or purging the system;
(3) That there is continuity of earth bonding.
5.4.2 Repairs to Sealed Components
5.4.2.1 During repairs to sealed components, all electrical supplies shall
be disconnected
From the equipment being worked upon prior to any removal of
sealed covers, etc. If it is absolutely necessary to have an electrical
supply to equipment during servicing, then a permanently operating
form of leak detection shall be located at the most critical point to warn
of a potentially hazardous situation.
5.4.2.2 Particular attention shall be paid to the following to ensure that
by working on
Electrical components, the casing is not altered in such a way that
the level of protection is affected. This shall include damage to cables,
excessive number of connections, terminals notmade to original
specification, damage to seals, incorrect fitting of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such that
they no longer serve the purpose of preventing the ingress of flammable
atmospheres. Replacement parts shall be in accordance with the
manufacturer’s specifications
.
