BS 7671 Electrical Installations Worksheet

To which one of the following electrical installations does BS 7671 apply?

• Installations at mines and quarries.

• Low voltage generating sets.

• Public transmission systems.

• Off-shore installations.

Which one of the following is listed under exclusions from the scope of BS 7671

• External lighting and similar systems.

• Photovoltaic systems.

• Highway equipment and street furniture.

• Mines specifically covered by Statutory Regulations.

The IET Wiring Regulations (BS 7671:2018) are

• non-statutory but may be used in a court of law in evidence to claim compliance with a statutory requirement.

• non-statutory and may not be used in a court of law in evidence to claim compliance with a statutory requirement.

• statutory and may be used in a court of law to supplement the Electricity at Work Regulations.

• statutory and may be used in place of the Electricity at Work regulations.

No additions or alterations should be made to an existing installation unless

• a completion and inspection certificate can be produced for the existing installation.

• the work is undertaken by a registered contractor.

• the rating and condition of the existing installation is adequate.

• a request in writing has been made by the person requesting the work.

Which of the following types of installation is not included in the special installations recognised by BS 7671?

• Swimming pools.

• Petrol filling stations.

• Agricultural.

• Saunas.

Chapter 13 deals with

• Object and effects

• Fundamental Principles

• Exclusions from scope

• prefabricated buildings

Basic protection can be achieved by

• Preventing a current passing through the body of any person or livestock

• Limiting the duration of current resulting from a fault

• Limiting the magnitude of a current resulting from a fault

• A protective device operating in prescribed time limits