Class 1 And 2 Electrical Appliances

This makes electrical equipment very safe to use.

Class 1 and 2 electrical appliances.

Examples of class iii appliances are laptops mobile phones and low energy light bulbs. 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. Both class 1 and class 2 equipment require pat testing although it is important to differentiate the two as they are tested differently. Posted on february 9 2017.

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. 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. Examples of class 1 equipment are kettles toasters irons microwaves electric heaters fridges freezers washing machines and tumble dryers etc. Pat testing list of class 2 electrical appliances.

1 farnham road guildford surrey gu2 4rg. But does not include a tool portable type promoted exclusively to industry. 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. Surrey fire safety ltd heathrow branch 450 bath rd heathrow longford london ub7 0eb.

Appliances can be class 1 or class 2. Class 1 and class 2. 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. An electrical appliance that is for machining drilling sawing or surface preparation.

May be entirely supported by hand during operation. Surrey fire safety ltd leatherhead branch dorset house regent park. It also follows another standard ul 1310. Class iii appliances use an isolating transformer.

Drill as nzs 60745 2 1 sander or polisher other than disk types as nzs 60745 2 4 circular saw as. All electrical appliances using mains voltage have to provide at least 2 levels of protection to the user. There is no symbol for class 1. Class 2 appliances are sometimes referred to as double insulated.

The class 2 label is related to power supply not safety. 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.