VGO INTERNATIONAL TRADE A016-09KR2/G Bedienungsanleitung Seite 22

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.
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 environmental
effects. The check shall also take into account the effects of aging or
continual vibration from sources such as compressors or fans.