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Idiomas disponibles
Idiomas disponibles
Initial safety checks shall include:
• that capacitors are discharged: this shall be done in a safe
manner to avoid possibility of sparking;
• that no live electrical components and wiring are exposed
while charging, recovering or purging the system;
• that there is continuity of earth bonding.
Repairs to sealed components
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.
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 not made 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.
NOTE The use of silicon sealant may inhibit the effectiveness
of some types of leak detection equipment. Intrinsically safe
components do not have to be isolated prior to working on them.
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