Heating Cable Installation - nVent RAYCHEM EM4-CW Manuel D'installation

Cold lead
Conductor

HEATING CABLE INSTALLATION

Keep connection end of cable dry before and during installation.
All connections and electrical testing should be carried out by a qualified electrician.
The heating cable should not be:
• cut or damaged,
• installed across expansion joints or separate concrete slabs.
Minimum cable spacing is 8 cm
The heating cable must be secured to the underlying surface to prevent movement during the
installation.
The cold lead cable should be protected in a conduit. The entire length of heating cable should be
covered by wet sand-cement mixture, screed, or dry sand depending on the selected top surface.
Ramp heating embedded in concrete / cement screed
Concrete / Cement
screed ground
Insulation resistance tester
80-100 mm for
250-300W/m²
EM4-CW-Cable
Concrete / compacted
substrate
The insulation resistance
should be measured
with the aid of a
2500 Vdc (500 Vdc
minimum) insulation
resistance tester. The
reading should be more
than 100 MΩ.
Record all the measured
values on the Installation
Test Record provided.
Temperature and
moisture sensor
50 mm min.
Soil
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