In order to obtain the best possible operation, it is necessary to choose the right circuit breaker for the construction. For this, it is necessary to take into account some aspects:
Number of poles:
Each region of the country has an energy distribution system. The delivery of energy to homes can be done with single-phase, two-phase or three-phase systems, depending on the consumer's need and the supply pattern of the energy distributor. For the HV/LV Switchgear this is important.
The number of phases that is used in the home supply must be equal to the number of poles of the circuit breaker. That is, if your supply system is biphasic, you should choose a bipolar circuit breaker for protection. For a three-phase system, use a three-pole.
But be careful, the number of phases is not necessarily equal to the number of wires in the installation . A single-phase system, for example, is formed by a phase and a neutral wire (in addition to the ground / ground).
The current carried by the conductors depends on the power of the equipment powered by the electrical circuit. Circuit breakers must be chosen according to the current expected for the circuit it is protecting. To calculate the correct circuit breaker for your installation, consult an electrician.
Type of curve:
There breakers curve B, C and D . Each of them has a characteristic behavior in relation to the speed at which it trips and is suitable for a type of installation.
About the Company :-Robert Cowlishaw and Associates was established in the year 2007 and is a specialist Electrical Engineering company situated in Stockport near Manchester in the UK. We provide Electrical Survey and Condition reports including financial reports on various types of buildings, mainly commercial and industrial buildings.