Indicate a preference for any particular method.Įven with a galvanic isolator fitted,the supply arrangement shown in Figure C3 of Appendix C can result in severe corrosion of metallic-hulled (including ferro-concrete)recreational boats because of galvanic action, caused by dissimilar metals, occurring betweenrecreational boats. The order of alternative methods of connection given by (a), (b) and (c) is not intended to NOTE: See also Appendix C, Figure C3.NOTES: (c)Connection to recreational boats without an isolating transformer in accordance with (b)Connection to recreational boats through an on-board isolating transformer with thehull of metallic-hulled recreational boats and conductive parts bonded together inaccordance with Clause (a)Connection to recreational boats through a shore-mounted isolating transformer with the hull of metallic-hulled recreational boats and conductive parts bonded together inaccordance with Clause This Standard makes provision for three alternative methods of connection to recreationalboats as follows: NOTE:Guidelines on cathodic protection are given in the AS/NZS 2832 series of Standards. The galvanic isolator shall comply with Clause 4.6.4 of AS/NZS 3004.2. A galvanic isolator shall not be installed at any other point in theshore power protective earth conductor. protective earth conductor on therecreational boat only. Isolating transtormers maytpieplenmanlv toy the recreationalon the recreational boat or on shore in the low-voltage electrical supply to the recreational boat.Galvanic isolators may be installed in the shore power a.c. An isolating transformer or a galvanic isolator may be installed to reduce this problem. If an adequate system of sacrificial anodes is installed,this may not pose a problem. This edition is bound with a plastic coil, not with a ring binder as in the previous edition.AS/NZS 3004.1:2008 free download.Electrical installations-Marinas and recreational boats.ĪS/NZS 3004.1 Metallic hulls or hull skin fittings might be subject to accelerated galvanic corrosionmechanisms if the recreational boats are connected to a marina low-voltage electricalsupply protective earthing system.
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