How can basic protection be achieved?

What is a method of basic protection?

For example, in the case of automatic disconnection of supply, basic protection is provided by insulation and barriers and enclosures while fault protection is provided by protective earthing, protective bonding and automatic disconnection of supply. Basic and fault protection are independent.

How is fault protection achieved?

Fault protection can be achieved by automatic disconnection of the supply if the exposed-conductive-parts of equipment are properly earthed.

What is basic protection in electrical installation?

Basic protection consists of insulation, barriers and enclosures. The main purpose is to prevent contact with live parts by constructing the electrical installation such that this is prevented.

What form of protection is offered by selv?

The SELV systems must have protective-separation such as reinforced insulation, double insulation or protective screening from all circuits carrying higher voltages. The SELV cables must be double insulated or pass through plastic conduits especially when they are likely to come into contact with other circuits.

Is insulation basic protection?

Very little steel conduit. Basic insulation: ‘ insulation applied to live parts to provide basic protection and which does not necessarily include insulation used exclusively for functional purposes.

How is the fundamental rule of protection against electric shock achieved?

THE FUNDAMENTAL rule of protection against electric shock is: live parts, such as energized conductors, must not be accessible, and. conductive parts which are accessible, such as metal enclosures of equipment or metal pipes, must not be hazardous-live.

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What protects from electric shock?

Protective shields, protective barriers, or insulating material must be used to protect employees from shock, burns, or other electrical related injuries while employees are working near exposed energized parts which might be contacted or where dangerous electric heating or arcing might occur.

Why is electrical protection required?

Why are circuit protective devices important? Protective devices are important because they ensure that under fault conditions, a high fault current cannot flow – as well as protecting the installation this, more importantly, ensures that consumers are not injured or killed as a result of an electrical fault.