Document ID: chunk:federal_register_of_legislation:F2016L00407:body:0:p52
Version: federal_register_of_legislation:F2016L00407
Segment Type: other
Provision Reference: 
Character Range: 148945–153989

defined by AS/NZS 3000:2007).
                                                                        * The potential (voltage) between parts of the earth in Multiple Earthed Neutral (MEN) systems can change, sometimes causing electric shocks. The changing earth potential can be due to a number of causes including a high impedance return path to the low-voltage distribution neutral, faults on other parts of the power system or lightning strikes.
                                                                        * Incorrect wiring connections, for example transposing active and neutral, commonly referred to as incorrect polarity.
                                                                        * Switched off circuits becoming energised.
                                                                        * Faulty equipment, for example the frame of faulty equipment may become energised.
                                                                        * Step and touch potentials and transferred earth potentials. Transferred earth potentials often result from system faults.
                                                                        * Hygroscopic materials that become conductive, for example fertiliser dust.
Other Hazards                                                           * Working at heights and danger of falling objects.
                                                                        * Removal of cover plates near energised equipment, for example escutcheon plates.
                                                                        * Confined spaces (where there may be a hazardous atmosphere).
                                                                        * Inadequate light to work safely.
                                                                        * Lack of ventilation leading to uncomfortable, hot and humid working conditions.
                                                                        * Excessive worker fatigue, due to pressure of deadlines or other factors.
                                                                        * Obstacles to getting the equipment switched off.
                                                                        * Using a gas flame near exposed electrical conductors (a flame is a conductor).
                                                                        * Using conductive or flammable cleaning solvents.
                                                                        * Temperature rise as a result of combustion.
                                                                        * Cramped working conditions, including cable trenches and cable pits.
                                                                        * Explosive atmospheres.
                                                                        * Use of conductive tools and equipment, for example metallic tape measures and rulers.
                                                                        * Electric tools and equipment (for example, hand lamps, drills, saws, torches and test instruments).
                                                                        * Personal effects (for example, rings, jewellery, watches, pens, cigarette lighters, matches, hearing aids, mobile phones and pagers, transistor radios and similar).
                                                                        * General work activities (for example, welding, cutting, brazing, using hand saws, drilling of all types, hammering and chiselling).
                                                                        * Hot metal surfaces due to drilling, grinding or welding.
                                                                        * Excavation associated with electrical work.
                                                                        * Molten metal from arcs.
                                                                        * Asbestos material/switchboards.
                                                                        * Polychlorinated biphenyl (PCB) in transformers, capacitors and electric motors.

APPENDIX D – PREVENTATIVE ACTIONS CHECKLIST
This checklist will help you to identify hazards associated with electrical work and develop safe work methods.
If you answer 'NO' to any question you must take action to put appropriate risk control measures in place.

PART 1: INITIAL ASSESSMENT                                                                                                                                                     Y  N

Can the work be undertaken while the electrical equipment is de-energised?

If Yes, proceed to Part 2. If No, is it:

    * necessary in the interests of health and safety that the electrical work is carried out on the equipment while the equipment is energised?
OR

    * necessary that the electrical equipment to be worked on is energised
      in order for the work to