Terry Inspect & Test papers

Inspection must always be carried out:

• Only after consultation with the owner of the premises

• With all covers in place

• Only after correct isolation has been achieved

• Only after the installation has been completed

Ze testing is carried out:

• At the mains incoming position

• At the end of the circuit

• At the furthest point from the origin

• In the middle of all circuits

What is the first thing an Inspector must do before carrying out a Ze test?

• Carry out a safe and secure isolation procedure of the CCU

• Remove the Neutral supply conductor

• Remove the Line conductor

• Ensure the board is energised

Ze testing is carried out with the Earthing Conductor:

• Terminated in the MET

• Removed from the MET

• Connected to the Incoming Neutral conductor

• Isolated

What is the first thing the inspector must do after carrying out a Ze Test?

• Energise the system

• Reconnect the Earthing conductor

• Reconnect the Neutral conductor

• Isolate the system

If Zs is 0.6Ω, R1 + R2 = 0.2Ω, Ze will be:

• 0.8Ω

• 0.3Ω

• 0.2Ω

• 0.4Ω

The maximum Tabulated Zs allowed for the protective device is 3.26Ω, the test reading = 2.9Ω:

• The circuit is acceptable as it doesn’t exceed 3.26 Ω

• The circuit is acceptable as it doesn’t exceed 2.6 Ω

• The circuit is acceptable as it does exceed 2.6 Ω

• The circuit is unacceptable as it exceeds 2.6 Ω

Ze testing is carried out using:

• An EFLI tester

• A PFC tester

• An Insulation resistance tester

• A low reading Ohm Meter

Testing of a Supplementary Bonding conductor is
1. carried out between an extraneous conductive part and an exposed conductive part
2. between an exposed conductive part and the MET
3. between an exposed conductive part and an exposed conductive part
4. between two extraneous conductive parts. Which statements are true?

• Only number 1 is true

• Only numbers 1, 2 and 4 are true

• Only number 1, 3 and 4 are true

• All numbers are true

Carrying out the 'end to end' (loop tests) on a Ring Final circuit will:
1 provide information about correct Polarity
2. if the conductors are continuous
3. the predicted readings for the next series of tests. Which statements are true?
4. R1 & R2

• Only number 1 is true

• Only numbers 2 and 3 are true

• Only numbers 1, 3 and 4 are true

• All numbers are true