Part P BS 7671 IET Wiring Regulations 1

Question 1

What is the full title of BS 7671?

Accepted Answer

Requirements for Electrical Installations (IET Wiring Regulations)

Answer

British Standard for Safe Electrical Practice

Answer

Institute of Electrical Engineers Code of Practice

Answer

National Wiring Standard for Domestic Properties

Question 2

Which edition of BS 7671 is currently in force in the UK?

Accepted Answer

18th Edition (2018, with amendments)

Answer

17th Edition

Answer

16th Edition

Answer

19th Edition

Question 3

What is the purpose of BS 7671?

Accepted Answer

To provide requirements to protect persons, property and livestock against hazards from electrical installations

Answer

To specify electrical product manufacturing standards

Answer

To certify electrical engineers

Answer

To regulate the electricity supply industry

Question 4

What is Regulation 110.1 of BS 7671 concerned with?

Accepted Answer

The purpose, scope and fundamental principles of the regulations — protecting against shock, fire and burns

Answer

Cable sizing calculations

Answer

Testing procedures

Answer

Consumer unit specifications

Question 5

What does 'SELV' stand for in BS 7671?

Accepted Answer

Separated Extra-Low Voltage

Answer

Safety Extra-Low Voltage

Answer

Standard Electrical Low Voltage

Answer

Switched Extra-Low Voltage

Question 6

What is the maximum AC voltage that defines 'extra-low voltage' in BS 7671?

Accepted Answer

50 V AC (or 120 V ripple-free DC)

Answer

110 V AC

Answer

25 V AC

Answer

12 V AC