Insulation Resistance Testing Procedures

The video tutorial covers the final stages of basic lighting circuits, extending from one-way to two-way and intermediate circuits. It details the procedures for conducting continuity of CPC and polarity tests, followed by insulation resistance tests. The tutorial emphasizes the importance of setting up instruments correctly, recording the highest readings, and ensuring safety by removing loads before testing. It concludes with basic live testing to verify circuit functionality and polarity.

What is the final stage of the basic lighting circuits discussed in the video?

• Three-way circuit

• One-way circuit

• Two-way circuit

• Two-way and intermediate circuit

What is the first test to be performed before starting the continuity of CPC test?

• Insulation resistance test

• Live testing

• Polarity test

• Setting the instrument to the ohm scale

What should be done if the instrument shows a flashing zero during the continuity of CPC test?

• Press the test button again

• Restart the test

• Check the connections

• Replace the instrument

Where is the highest reading typically recorded during the continuity of CPC test?

• At the last switch

• At the lighting point

• At the first switch

• At the consumer unit

What is the next step after completing the continuity of CPC and polarity test?

• Live testing

• Rechecking polarity

• Functional testing

• Insulation resistance test

What voltage is set on the instrument for the insulation resistance test?

• 500 volts DC

• 1000 volts DC

• 250 volts DC

• 750 volts DC

What should be done with the lamp before starting the insulation resistance test?

• Turn it on

• Cover it

• Leave it in place

• Remove it

Which switches need to be thrown into the opposite on position during the insulation resistance test?

• Two-way switches

• All switches

• Intermediate switches

• None of the switches

What is the expected insulation resistance reading for a brand new installation?

• Between 1 and 2 mega ohms

• Greater than 100 mega ohms

• Greater than 2 mega ohms

• Less than 1 mega ohm

What is the final step after completing all tests on the circuit?

• Rechecking polarity

• Going live and performing basic live testing

• Turning off the circuit breaker

• Removing all loads