Ardesto ACM-12P-R290 - Инструкция по эксплуатации - Страница 112

112

EN

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.

8.  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.

9.  Cabling 

Check that cabling will not be subject to wear, corrosion,