Examples Class 1 Electrical Appliances

Some examples of class 1 appliances are toasters kettles washing machines and irons.

Examples class 1 electrical 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. Class iii appliances use an isolating transformer. There is no symbol for class 1. Appliances can be class 1 or class 2.

Appliances without the double box symbol are of class 1 construction and need the earth continuity and the insulation resistance tests carried out during pat testing. Class iii appliances are identified by the class iii symbol. This makes electrical equipment very safe to use. When pat testing class 1 appliances earth continuity and insulation resistance tests are carried out.

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. A typical example of a class 0 appliance is the old style of christmas fairy lights. These appliances are known as double insulated due to the presence of at least two layers of insulation. If the appliance is in a metal enclosure like an electric fire or a washing machine then it is relatively easy to clip the earth test lead to a metal point.

Typical class 1 items toasters kettles washing machines irons and many more. However equipment of this class is common in some 110 v countries and in much of the 220 v developing world whether permitted officially or not. The class 2 label is related to power supply not safety. Class 1 appliances are as follows.

It is not a simple as it s an extension lead therefore it is class 1 etc. These appliances do not have their chassis connected to electrical earth. If it is made of metal it must be a. It also follows another standard ul 1310.

The point is you need to look at the markings on the appliances the flex used and inside the plug to determine what class an appliance is. 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. I have come across a few instances of a two core extension lead powering a desk complete with computers monitors printers etc.

The symbol for class i items looks like this and should be found somewhere on the appliance. Examples of class 1 equipment are kettles toasters irons microwaves electric heaters fridges freezers washing machines and tumble dryers etc.