Technical Bulletin 118a Quiz

What is the main focus of Technical Bulletin 118a?

• Safe-to-touch and safe isolation procedures on low-voltage single-phase supplies

• High-voltage multi-phase supplies

• Gas safety legislation

• Building regulations

When was Technical Bulletin 118a issued?

• 30 January 2018

• 1 February 2023

• 7 February 2023

• 1 February 2025

What should be done before attending a site and starting work according to the Technical Bulletin?

• Review building regulations

• Assess the risks associated with the work

• Log into the Gas Safe Register

• Read the IET Wiring Regulations

What is the definition of electric shock according to BS 7671 (IET Wiring Regulations)?

• A minor injusy caused by static electricity

• A dangerous physiological effect resulting from the passage of electric current through the human body

• A dangerous sensation resulting from touching a live wire

• A minor discomfort caused by low voltage electricity passing through your body

What is the purpose of the guidance in Technical Bulletin 118a?

• To provide information on high-voltage supplies

• To ensure safe-to-touch and safe isolation procedures for low-voltage single-phase supplies

• To update gas safety legislation

• To review building regulations

What should Gas Safe registered businesses/engineers do according to the Technical Bulletin?

• Ignore the guidance in the Technical Bulletin

• Apply the requirements of the Technical Bulletin when appropriate

• Only follow the guidance if convenient

• Refer to the Technical Bulletin only for high-voltage supplies

What is the first step to ensure a safe working environment when dealing with electrical equipment?

• Use a multi-meter to check for voltage.

• Check with the responsible person that it is acceptable to isolate the equipment/circuit.

• Perform a sweeping scan of all exposed surfaces.

• Use a two-pole voltage indicator/test lamp.

What is the primary use of no-contact live circuit detectors (voltage sticks) in the gas industry?

• Proving that equipment is dead.

• Identifying live equipment.

• Checking the function of safety-critical test equipment.

• Ensuring dangerous voltage is not present due to a fault condition.

What does HSE recommend should not be used for proving dead?

• No-contact live circuit detectors

• Two-pole voltage indicator/test lamp

• Multi-meter

• Proving unit

What is the purpose of a proving unit?