BEST WAY TO DO INSULATION RESISTANCE TEST ON ELECTRICAL WIRING
9.2 هزار بار بازدید -
3 سال پیش
-
This video is a comprehensive
This video is a comprehensive step-by-step practical demonstration of how to carry out insulation resistance test on an electrical installation.
The insulation resistance test is a very important test that must be done on:
1) A newly completed electrical wiring
2) An existing electrical wiring (periodically), to ensure that the insulations on all the the cables in the installation are strong enough to prevent current leakage between any two of the cables in the installation.
The insulation on the cables are usually of PVC or rubber and the purpose of that PVC or rubber on the cable is to confine electric current flow in the conductor only, so that the current does not flow outside the cable. Whenever the insulation on the cable becomes weak(insulation break-down), It loses it's ability to prevent current from flowing through it and this can cause current to leak through the weak insulation.
THE DANGER of insulation break-down or weak insulation in an electrical installation are:
1, Electric shock
2, Overheating of cables
3, Short-circuit
Insulation break-down is a major cause of electric fires.
CAUSES of insulation break-down:
1. Injury on cable insulation(abrasion) during installation
2. Aging (the strength of the insulation weakens with time)
So this test must be done just after the installation, and periodically during the life time of the installation.
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https://youtube.com/shorts/1hR89aDRVx
The insulation resistance test is a very important test that must be done on:
1) A newly completed electrical wiring
2) An existing electrical wiring (periodically), to ensure that the insulations on all the the cables in the installation are strong enough to prevent current leakage between any two of the cables in the installation.
The insulation on the cables are usually of PVC or rubber and the purpose of that PVC or rubber on the cable is to confine electric current flow in the conductor only, so that the current does not flow outside the cable. Whenever the insulation on the cable becomes weak(insulation break-down), It loses it's ability to prevent current from flowing through it and this can cause current to leak through the weak insulation.
THE DANGER of insulation break-down or weak insulation in an electrical installation are:
1, Electric shock
2, Overheating of cables
3, Short-circuit
Insulation break-down is a major cause of electric fires.
CAUSES of insulation break-down:
1. Injury on cable insulation(abrasion) during installation
2. Aging (the strength of the insulation weakens with time)
So this test must be done just after the installation, and periodically during the life time of the installation.
How to perform Insulation resistance ...
How to do earth electrode resistance ...
How to do insulation resistance test ...
How to check for open circuit in elec...
How to Use a Multimeter to Measure Vo...
HOW TO USE MULTIMETER TO MEASURE CUR...
How to measure electricity used by Ai...
How to check a faulty contactor with ...
How to troubleshoot and repair any fa...
https://youtube.com/shorts/1hR89aDRVx
3 سال پیش
در تاریخ 1400/08/08 منتشر شده
است.
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