code of practice of electrical safety for work on or near high voltage

Approach To Electrical ApparatusTable 5 - Safe Approach Distances to Exposed Live Conductors <strong>for</strong>Insulated mobile plant operated by persons who are instructed orauthorised to <strong>work</strong> on or near exposed conductors.Nominal Phase toPhase AC VoltageSafe ApproachDistances(Note 1, 2 and 3)Working Within SafeApproach Distance(Note 1, 3 and 4)kV Millimetres MillimetresInsulatedportionsUninsulatedportionsInsulatedportionsUninsulatedportionsLow Voltage Contact 1000 Contact 1000AllowableAllowableHV up to and 700 1200 Contact 1000including 33661000 1400 Contact 1000220275330500Nominal Pole toearth DC Voltage kV+/- 25+/- 851800 2400 ContactAllowable2300 3000 ContactAllowable3000 3700 ContactAllowable3900 4600 ContactAllowance700 1200 ContactAllowable1000 1800 ContactAllowable180023003000390010001000(1) These distances specified are based on <strong>work</strong> from a stable surface.Appropriate allowance shall be made <strong>for</strong> conductor sag and sway, and<strong>for</strong> uncontrolled movement <strong>of</strong> the Mobile plant <strong>for</strong> any reason.(2) For ordinary persons refer to Table 4.(3) For safe approach distance where contact is allowed, careshall be exercised to prevent movement <strong>of</strong> conductors.(4) For live <strong>work</strong> in accordance with Organisational Procedures.Page 64 <strong>of</strong> 148 Blue Book – December 2005