ELEKTRA VCDR, Installation Manual

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ELEKTRA VCDR
Heating Cables
Stage 2
After the heating cable
has been laid:
• stick into the Warranty Card the self-adhesive
label, on the power supply conductor of the
heating cable,
• feed the power supply conductor (“cold tail”)
of the heating cable into the enclosure,
• in case of planned delay in connection of the
heating cable to the electrical installation,
seal the power supply cable of the heat-
ing cable against the possibility of internal
moisture penetration, (e.g. heat shrinkable
end cap),
• perform the measurements of:
- heating core’s resistance,
- insulation’s resistance.
The measurement results of the heating core’s
resistance should not vary from the label value
with more than -5%, +10%.
The heating cable insulation’s resistance, as meas -
ured with an appliance of the rated voltage 1000 V
(megaohmmeter), should not drop below 50 M
Ω
.
Enter the results into the Warranty Card.
After the cables have been laid, repeat the meas-
urements to check whether the heating cable has
not been damaged during installation works (the
power supply conductor can be extended with
a junction box or a heat shrink joint set).
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