312 - Electrical- types of cable

What type of cables are generally used from the consumer unit within a dwelling?

• Multicore flex cables

• Flat PVC two-core and earth cables

• Singles cables with mechanical protection

• Flex cables found on individual appliances

Where are flex cables most commonly found?

• In the consumer unit

• On individual appliances and pieces of equipment

• Connecting gas solenoids

• Wiring boiler or heating controls

What additional protection is mentioned for 'singles' cables?

• PVC coating

• Mechanical protection such as a conduit

• Insulation with rubber

• Multicore shielding

Why is the correct selection of flex important?

• To ensure proper color coding

• To prevent electrical shocks

• To prevent overheating

• To reduce electricity costs

What is the wattage capacity for a 1.0mm cable flex according to the chart?

• 700w

• 1400w

• 2400w

• 3600w

Which appliance is suitable for a 0.75mm cable flex?

• Lights

• Central heating

• Kettle/immersion

• Commercial

What is the typical use of armoured cable?

• For interior lighting circuits

• To supply an outhouse with power

• For connecting audio-visual equipment

• For data transmission in computer networks

What type of flex is used on heat-producing appliances like kettles, irons, and immersion heaters?

• Standard flex

• Heat-resistant flex

• mdpe flex

• PVC flex

An immersion heater is usually rated at which of the following ranges?

• 1.0-2.0kW

• 2.5-3.0kW

• 3.5-4.0kW

• 4.5-5.0kW

What is the specification of the cable used with an immersion heater rated at 2.5-3.0kW?

• 1.0mm butyl heat resistant flex

• 1.5mm butyl heat resistant flex

• 2.0mm butyl heat resistant flex

• 2.5mm butyl heat resistant flex