Maintenance Protocol

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Reference information
Circuit number
Fuse number
Drawing number
Fuse length:
Visual inspection of heating cable length
No signs of moisture or rust formation Initial
Date
Correct electrical connections Initial
Date
Correct earthing Initial
Date
Electrical control of heating cable length
Megaohmtest (500V) (bypass-control) Meg ohms
Date
Current measurement (self-limiting cable at operating temperature)
Compare with mark or electrical drawing
Ampere
Amb.temp.
Date
Control of the resistance of the length Resistance
Date
Control/Temperature transmittor
Temperature control correctly settled Set point
Date
Transmitter in function Initial
Date
Sealings and junction boxes, intact Initial
Date
Control of thermal insulation
Passages in the outer sheath of the insulation, intact Initial
Date
The insulation is complete, dry and protected for the weather Initial
Date

Date:…………………………………………………………… Signature:………………………………………………………

Maintenance

VÄRMEKABELTEKNIK recommend that heating cable system for keeping warm gets a continuous inspection in form of current measurement (control with current pliers). Also the thermostat/regulators should be function tested. Repair or replace all damaged heating cables and connections.

Note the undertaken repairs and measurings in the maintenance protocol.