Electrical Safety Regulation 2026
sec.278Electrical limits
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sec.278 Electrical limits
The owner of a cathodic protection system must ensure the system complies with the requirements of this section for the system. Maximum penalty—40 penalty units. The maximum open circuit voltage of a cathodic protection system may be more than 50V only if the owner has the written agreement of the regulator. If an anode for a cathodic protection system is immersed in water or a marine environment, the potential difference between any 2 accessible points spaced 1m apart in the water or marine environment must not be more than 3V when the system is energised. In a surface area of 1,000m 2 measured radially about an electrode or the centre of a group of electrodes discharging current to ground as part of a cathodic protection system on land or in non-saline water, the total current of 1 polarity must not be more than 100A. In an area of surface water of 2,000m 2 bounded by a 100m length of the mean low water level contour and a line displaced 20m in a direction away from land from the contour, the total current of 1 polarity discharged to water or substrata by all electrodes in the area for a cathodic protection system must not be more than 500A. (sec.278-ssec.1) The owner of a cathodic protection system must ensure the system complies with the requirements of this section for the system. Maximum penalty—40 penalty units. (sec.278-ssec.2) The maximum open circuit voltage of a cathodic protection system may be more than 50V only if the owner has the written agreement of the regulator. (sec.278-ssec.3) If an anode for a cathodic protection system is immersed in water or a marine environment, the potential difference between any 2 accessible points spaced 1m apart in the water or marine environment must not be more than 3V when the system is energised. (sec.278-ssec.4) In a surface area of 1,000m 2 measured radially about an electrode or the centre of a group of electrodes discharging current to ground as part of a cathodic protection system on land or in non-saline water, the total current of 1 polarity must not be more than 100A. (sec.278-ssec.5) In an area of surface water of 2,000m 2 bounded by a 100m length of the mean low water level contour and a line displaced 20m in a direction away from land from the contour, the total current of 1 polarity discharged to water or substrata by all electrodes in the area for a cathodic protection system must not be more than 500A.