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HOME ELECTRICAL INSTALLATIONS

● The electrical installation begins at electricity counters room.

● The counters are devices placed by companies that provides electricity to measure the electricenergy consumption.

HOME ELECTRICAL INSTALLATIONS● Individual derivation line get inside each

apartment through control and distribution panel.


● Elements of control and distribution panel are:● PCS (ICP): Power Control Switch, controls that

consumed power not exceeds the maximum contracted power by user. It is sealed by provider company.

● AMS (IGA): Automatic Main Switch, protects an installation against high intensities and shortcuts.


● RCD (ID): Residual Current Device, is a security switch that disconnects all the home installation when there is any earth fault.


● MCB (PIA): Miniature Circuit Breaker, exists one by each internal circuit, protects each circuit against overloads and shortcuts. It allows disconnect zones individually.

● The number of MCBs in the control and distribution panel depends on the metering type (with or without time discrimination) and the electrification level of the home.


● Electrification level at home can be basic or high.● Basic level:

– Homes with less than 160 m2 of surface or contracted power below 9200W.

– It must allow the use of It must allow the use of common electrical devices common electrical devices at home.at home.


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● High level:– Homes with more than

160 m2 of surface or contracted power over 9200W.

– Homes with installation of electrical heating, air conditioning or driyer.


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● Most common electric circuits at home are:● Single point light: lamp or lamps that can be turn on

with a single switch.● Commuted point light: lamp or lamps that can be

turn on from two or more points.● Grounded or ungrounded electrical outlets.


● Single point light:


● Commuted point light:


● Grounded or ungrounded electrical outlets:

Download - Home electrical installations

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