HEATIZON.COM
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Heatizon recommends that photographs of the installed heating cable be taken
and/or hand drawings documenting the layout be completed prior to before
installing the asphalt, concrete, pavers, stone or tile.
NOTE:
12. Electrical Connections
The connection of the power supply and the activation device must be done by a qualified
electrician in accordance with the National Electrical Code (NEC) and the Canadian Electrical Code
(CEC). Refer to the wiring diagram included with the activation device and/or panel(s).
Electrical Requirements:
120 or 277 VAC — Single Phase
208, 240, 480 or 600 VAC — Two Phase
The grounding shield from the Cold Lead(s) must be wired to Ground for all primary power
installations. Section 426 of the NEC requires that each circuit to the heating cable be protected
with a ground fault equipment protection devices.
11. Required Tests (Second)
Insulation Resistance with Megohmmeter
Before, during, and after installation, it is necessary to measure
the insulation resistance between the heating conductor and the
protective grounding screen with a 500VDC Megohmmeter. This
measured value may not be less than 0.5 Megohms.
Connect the voltage lead to the inner cold lead conductors and the
earth lead to the cold lead outer grounding braid or sheath. Test
resistance at 500VDC. Record the measured values in the certificate of
warranty.
Cable Conductor Resistance with Multimeter
Before, during, and after installation, it is necessary to measure the resistance
of the heating circuit with a multimeter. The measured values should be equal
-5% to +10%.
Connect one meter lead to the one cold lead inner conductor and
the other meter lead to the other cold lead inner conductor. Take
the Ohm reading. Record the measured values in the certificate of
warranty.
Be sure to check product label for proper resistance, operating
amperage, operating voltage, cable length and other important
information when performing tests.
