Class 1 And 2 Electrical Appliances

Pat testing list of class 2 electrical appliances.

Class 1 and 2 electrical appliances.

Class 1 and class 2. This is to ensure that if one of the protection layers were to fail there is the back up of the second layer still in place. All electrical appliances using mains voltage have to provide at least 2 levels of protection to the user. Examples of class 1 equipment are kettles toasters irons microwaves electric heaters fridges freezers washing machines and tumble dryers etc.

Class 2 equipment has supplementary insulation and therefore does not rely on an earth for protection and is easily identified by the double square symbol and will receive an insulation test. It also follows another standard ul 1310. Surrey fire safety ltd leatherhead branch dorset house regent park. But does not include a tool portable type promoted exclusively to industry.

Any appliance which plugs into the mains will be either class 1 or class 2. An electrical appliance that is for machining drilling sawing or surface preparation. 1 farnham road guildford surrey gu2 4rg. Of course you could look inside the plug a class 2 appliance should only have 2 wires brown and blue whereas a class 1 will have 3 wires brown blue and green yellow however it is not unusual to find appliances which have been rewired or modified bodged with the wrong cable so the only way to.

May be entirely supported by hand during operation. Both class 1 and class 2 equipment require pat testing although it is important to differentiate the two as they are tested differently. Class iii appliances use an isolating transformer. This makes electrical equipment very safe to use.

The class 2 label is related to power supply not safety. The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an electric shock and that this is achieved without relying on an earthed metal casing. Examples of class iii appliances are laptops mobile phones and low energy light bulbs. Class iii appliances are identified by the class iii symbol.

Class 1 appliances with class 1 appliances the user is protected by a combination of basic insulation and the provision of an earth connection thus providing two levels of protection. There is no symbol for class 1. Surrey fire safety ltd heathrow branch 450 bath rd heathrow longford london ub7 0eb. Drill as nzs 60745 2 1 sander or polisher other than disk types as nzs 60745 2 4 circular saw as.

A class ii or double insulated electrical appliance is one which has been designed in such a way that it does not require a safety connection to electrical earth ground. Posted on february 9 2017.