Bedienungsanleitung Inventum AC907W (Seite 34 von 100) (Deutsch, Englisch, Holländisch, Französisch)

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- Marking to the equipment continues to be visible and legible. Markings and signs

that are illegible shall be corrected;

- Refrigeration pipe or components are installed in a position where they are

unlikely to be exposed to any substance which may corrode refrigerant containing

components, unless the components are constructed of materials which are

inherently resistant to being corroded or are suitably protected against being so

corroded.

9) Checks to electrical devices

Repair and maintenance to electrical components shall include initial safety checks

and component inspection procedures. If a fault exists that could compromise safety,

then no electrical supply shall be connected to the circuit until it is satisfactorily dealt

with. If the fault cannot be corrected immediately but it is necessary to continue

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:

• 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.

7. Repairs to sealed components (Annex DD.4)

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 isabsolutely 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 (Annex DD.5)

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.

34 • English

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