Insulation Resistance Test On a 3 Phase Circuit | PTT
Learn how to safely carry out an insulation resistance test on a three phase circuit with our skilled trainer, Sam.
Insulation resistance is defined as the resistance to current leakage through and over the surface of the insulation material surrounding a conductor. It is measured in Ohm`s and its value represents a very important factor to electricians working within the electrical industry.
The insulation resistance test is an electrical test which uses a certain type and level of voltage to measure insulation resistance in Ohm`s. The measured resistance indicates the condition of the insulation between two conductive parts. An infinite resistance would be the perfect result, but no insulator is perfect, so the higher the reading the better.
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Пікірлер: 14
Great VT.. coming to do my 2391 in June with you guys
Thankyou sir ,wonderful
Sir, that's a very good video, but I wish to know , how to select the applied voltage for single and 3 phase conductors. Is it that the the voltage applied must be twice the RMS value of nominal operatinal voltage??? Kindly reply
@Mr.Q852
3 жыл бұрын
Selv-pelv systems= 250v 0.5ohms Up to 500v systems = 500v 1.0ohms Above 500v systems =1000v 1.0ohms
@paulwilliams8104
3 жыл бұрын
Test voltages are taken from the regs and are dependant on the circuit to be tested rather than RMS of supply. As a rule in domestic application and on standard circuits on 3 phase, that value is 500V. However to ensure you are testing IR appropriately for each circuit reference should be made to BS7671.
@hughjadiel2999
2 жыл бұрын
sorry to be off topic but does someone know of a way to log back into an Instagram account..? I somehow forgot the login password. I would appreciate any assistance you can offer me!
@ayarottilsandeep545
2 жыл бұрын
@@hughjadiel2999 isn't there an option of" Forget password ".there should be, I believe you can get the One Time Pass word on the registered number in Instagram. Please check, or please try
@kristianguillermo2795
2 жыл бұрын
@Hugh Jadiel Instablaster ;)
Breakers off? Shouldn’t they be left on
@uplightuk8924
Жыл бұрын
Why? You’re testing out the top of the breaker so makes no difference if the breakers are off