Safe Isolation

In order to comply with GS 38, the tips of a set of test probes must not exceed?

• 1 mm

• 2 mm

• 3 mm

• 4 mm

Test equipment used for the safe isolation procedure must meet the requirements of ?

• GS 83

• GS 40

• GS 38

• UB 40

What is the purpose of safe isolation?

• So work can be carried out on an installation safely

• To save energy

• To comply with BS7671

• To save the environment

How must a voltage indicator be proved to be working?

• Using a G- Unit

• Touching the ends of the test leads together

• Using a low resistance ohmmeter

• Using a proving unit

What does HSE stand for?

• Health & Safety Executive

• Health & Safety Enterprise

• Health & Safety Electrical

• Health & Safety England

Name a safety requirement for test probes ?

• Flexible

• Long enough

• Finger barriers

• No insulation

How should the system be secured after it has been isolated ?

• Electrical tape

• Barriers

• Locking devices and labels

• Consumer unit blanks

What should we first do before starting the safe isolation procedure ?

• Isolate the supply

• Unplug any equipment

• Test for voltage

• Nothing

What is GS 38

• HSE guidance notes

• BS7671 Regulations

• HSBC guidance notes

• The brand of the test equipment

Before work can start on any electrical system the supply must be isolated and proved …… ?

• To be working

• Polarity

• Live

• Dead