Tecnolux JC09CA16B1R290 Mode D'emploi page 68

- That capacitors are discharged: this shall be done in a safe
manner to avoid possibility of sparking;
- That there no live electrical components and wiring are
exposed while charging, recovering or purging the system;
- That there is continuity of earth bonding.
2. Repairs to sealed components
• 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.
• 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.
3. Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to
the circuit without ensuring that this will not exceed the
permissible voltage and current permitted for the equipment in
use. Intrinsically safe components are the only types that can
be worked on while live in the presence of a flammable
atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the
manufacturer. Other parts may result in the ignition of refrigerant
in the atmosphere from a leak.
4. Cabling
Check that cabling will not be subject to wear, corrosion,
excessive pressure, vibration, sharp edges or any other adverse