Unit 104 Design (5357)

The statutory regulations that set standards which are intended to reduce the risk of electric shock, burns and fire, due to the use of electrical systems, are the:

• Electricity at Work Regulations

• IEE Wiring Regulations

• Personal Protective Equipment Regulations

• Health and Safety at Work Act.

Specific guidance is given to the selection of cables, isolation, switching, and inspection and testing for electrical installations in the:

• Health and Safety at Work Act

• Electricity at Work Regulations

• Electricity Supply Regulations

• IET Wiring Regulations.

In high rise buildings lightning conductors must be bonded to the:

• building girder work

• water and gas supplies

• the installation earth

• earthing rod.

BS EN numbers relating to electrical equipment signifies compliance with British and:

• International standards

• European standards

• English standards

• Insulation standards.

Exploded views in manufacturers’ manuals are generally used to show:

• large machine parts

• machines having few parts

• wiring diagrams of machines and systems

• complex components having many parts.

An electrical contractor, compiling a list of materials and equipment required to complete an installation, will need access to:

• delivery records

• drawings and specifications

• circuit diagrams

• day work sheets and variations.

A line on a drawing measuring 200mm, representing a wall on a site measuring 200m will be drawn to a scale of:

• 1:500

• 1:1000

• 1000:1

• 500:1.

Where two-way switches are used as part of a lighting circuit, these switches will provide, in accordance to BS 7671:

• emergency switching

• isolation

• mechanical maintenance

• functional switching.

Circuits that are used to measure and control temperature, air flow and humidity in a building are called:

• emergency management circuits

• environmental control circuits

• power control circuits

• security con.

Which of the following wiring systems allow for easy replacement and addition of cables?

• PVC conduit

• steel-wire-armoured cable

• mineral insulated cable

• metallic cable trunking.