Class 1 And 2 Electrical Appliances

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.

Class 1 and 2 electrical appliances. But does not include a tool portable type promoted exclusively to industry. 1 farnham road guildford surrey gu2 4rg. Surrey fire safety ltd leatherhead branch dorset house regent park. Appliances can be class 1 or class 2.

All electrical appliances using mains voltage have to provide at least 2 levels of protection to the user. Surrey fire safety ltd heathrow branch 450 bath rd heathrow longford london ub7 0eb. 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. This makes electrical equipment very safe to use.

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. Class iii appliances are identified by the class iii symbol. There is no symbol for class 1. 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.

Drill as nzs 60745 2 1 sander or polisher other than disk types as nzs 60745 2 4 circular saw as. The class 2 label is related to power supply not safety. Both class 1 and class 2 equipment require pat testing although it is important to differentiate the two as they are tested differently. In simple terms a class 1 appliance has an earth connection whereas a class 2 appliance will have two layers of insulation protecting the user from the mains inside.

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. Posted on february 9 2017. May be entirely supported by hand during operation. Class iii appliances use an isolating transformer.

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. It also follows another standard ul 1310. Class 2 appliances are sometimes referred to as double insulated. Any appliance which plugs into the mains will be either class 1 or class 2.

Pat testing list of class 2 electrical appliances. Examples of class iii appliances are laptops mobile phones and low energy light bulbs.