Electrical

Question 0

On completion of a new installation who is required to sign the completion certificate?

Answer 0

The designer, the installer and the tester.

Question 1

The Wiring Regulations, BS7671 are published by which engineering institution?

Answer 1

The Institution of Engineering and Technology, formerly the Institution of Electrical Engineers.

Question 2

Generally how frequently should an electrical installation in office premises be inspected and tested to check it is in safe condition?

Answer 2

Fixed Wire testing or condition surveys should be undertaken every 5 years.

Question 3

What is the test and inspection frequency of electrical installations in Leisure Centres?

Answer 3

The longest period between re-inspection and re-testing is 3 years.

Question 4

What is the re-inspection frequency to be applied to wiring installed in a swimming pool area?

Answer 4

Every 12 months

Question 5

Defects found during electrical fixed wire testing are prioritised as Cat1; Cat 2 and Cat3. What do these categories indicate?

Answer 5

Cat 1 defects are immediately dangerous and should be repaired or isolated during the inspection/test
Cat 2 defects
Cat 3 defects

Question 6

How much of an installation must be inspected during the periodic inspection and test of an installation?

Answer 6

All of the inspection which is accessible MUST be inspected.

Question 7

The Electricity at Work Regulations specifies the minimum frequency of testing Residual Current Devices (RCDs). What is that frequency?

Answer 7

12 months

Question 8

Who can issue a Permit to Work on LV or HV systems?

Answer 8

Only an Authorised Person - an AP, can issue a Permit to Work.
AP appointments are system specific, so only an AP for the system can issue a Permit on the system.