Design Practice 1

Identify the rated short-circuit capacity of a BS88-3 (type I) device as detailed in the On Site guide

• 31.5kA

• 16.5kA

• 33kA

• 16kA

Identify the item of equipment not considered to form part of a PEI (Prosumer electrical Installation)

• uninterruptable power supply

• load shedding equipment

• wind turbine

• battery

Identify the device that gives 'no-volts' protection for rotating machines

• RCD

• fuse

• DOL

• circuit breaker

Identify the non-statutory act/regulation from this list

• EaW

• Hasaw

• BS7671

• EPA

Identify the appropriate cable type for a 230v AC portable domestic appliance

• 1.  

  2. flexible cable

  3.  

• 1. SWA

• 1. MICC cable

• 1. pvc/pvc 'flat' cable

Identify the appropriate cable type for a portable 110v AC 'site' transformer.

• arctic flex

• pvc/pvc 'flat' cable

• SWA

• pvc insulated flexible cable

When applying DIVERSITY to discharge lighting (such as fluorescent lamps), identify the multiplication factor that should be applied to the lamp wattage.

• 1.8

• 5.5

• 10

• 2

Identify the PEI equipment that can be considered as both a load and a generator.

• motor

• UPS

• battery

• turbine

Identify the maximum 'measured' Zs value allowed for a type B 16A circuit breaker to BSEN60898, as detailed in the On Site guide.

Identify the maximum spacing of supports requirement for a non-armoured, PVC insulated and sheathed cable, in a vertical position, with a diameter of exactly 20mm

• 900mm

• 250mm

• 400mm

• 0.45m