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.

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