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Appliance classes
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==Class 0== These appliances have no protective-earth connection and feature only a single level of insulation between live parts and exposed metalwork. If permitted at all, Class 0 items are intended for use in dry areas only. A single fault could cause an [[electric shock]] or other dangerous occurrence, without triggering the automatic operation of any fuse or circuit breaker. Sales of such items have been prohibited in much of the world for safety reasons, for example in the UK by Section 8 of [http://www.legislation.gov.uk/uksi/1989/728/made The Low Voltage Electrical Equipment (Safety) Regulations 1989] and New Zealand by the [http://www.med.govt.nz/energysafety/documents/legislation-policy/electricity-act-regulations-codes/standards-and-codes-of-practice/nz-electrical-codes-of-practise/NZECP%203%201995%20New%20Zealand%20Electrical%20Code%20of%20Practice%20for%20Electrical%20Safety%20of%20Fittings%20and%20Electrical%20Appliances.pdf Electricity Act]. A typical example of a Class 0 appliance is the old style of [[Christmas_lights|Christmas fairy lights]]. However, equipment of this class is common in some 120{{nbsp}}V countries, and in much of the 230{{nbsp}}V developing world, whether permitted officially or not. These appliances do not have their chassis connected to electrical earth. In many countries the plug of a class 0 equipment is such that it cannot be inserted to grounded outlet like [[Schuko]]. The failure of such an equipment in a location where there are grounded equipment can cause fatal shock if one touches both. Any Class 1 equipment will act like a Class 0 equipment when connected to an ungrounded outlet.
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