Electrical Regulations Quiz Part 1

Which of the following Regulations are non-statutory?

• BS 7671 Requirements for Electrical Installations (ET Regulations)

• Electricity Safety, Quality and Continuity Regulations

• Electricity at Work Regulations 1989

• Health and Safety at Work etc. Act 1974

Which of the following is excluded from the scope of BS 7671?

• Equipment of aircraft

• Caravans

• Commercial premises

• Agricultural and horticultural premises

Which of the following is included in the scope of BS 7671?

• Lightning protection systems

• Equipment of motor vehicles

• Those aspects of mines and quarries covered by Statutory Regulations

• Photovoltaic systems

Which of the following would not necessarily need to be taken into consideration when additions or alterations are being made?

• The rating of any existing equipment.

• The condition of existing equipment.

• The existing earthing and bonding arrangements.

• The existing final circuits are protected by rewireable fuses.

In certain cases, the requirements of BS 7671 need to be supplemented by the requirements or recommendations of other British Standards for certain aspects or parts of the installation. Which of the following is not an example of this:

• Explosive atmospheres

• Telecommunications systems

• Electric fences

• Life safety and firefighting applications

When is it permissible to make an intended departure from a requirement of BS 7671?

• At the request of the client

• Where it is not cost-effective to comply fully with relevant requirements

• Where temporary work is carried out

• Where the resultant degree of safety is not less than would be obtained by compliance

Who is responsible for the design of an electrical installation?

• A skilled person

• An instructed person

• An ordinary person

• A responsible person

Which of the following does not necessarily have to be taken into consideration when determining the cross-sectional area of conductors?

• Energy efficiency

• Maximum admissible conductor temperature

• Method of installation

• Voltage drop

Which of the following is not a preferred frequency as outlined in BS7671?

• 40 Hz

• 50 Hz

• 60 Hz

• 400 Hz

Who makes the recommendation for the interval to the first periodic inspection and testing of an electrical installation?

• The person ordering the work

• The designer

• The installer

• The person carrying out the initial verification