In construction of the house/ building home owner should focus on electric works also; which require plenty of attention while laying wiring in addition to quality of wiring, specification of electrical appliances and cables/wires. Because of carelessness or lack of information by electrician fatal accidents can happen in later and take up more income in repair. Thus every care needs to be taken while doing electrical fittings. Here are given some suggestions on how to lay wiring.

Electrical cables/wires are laid inside walls and RCC slab which might require dismantling if any problem/defect arises in later. Dismantling is extremely costly when compared with getting it rightly fixed first time.


In the event of defects in electrical wires they are able to cause fire in house and might take human life in some instances. So be sure you do the following to make sure good electric works. 

A professional or good electrician ought to be hired for electric works. All electric works and installations should adhere to latest Indian Electricity Acts and Rules in most respects.

All materials utilized in electrical fittings ought to be of approved and from the reputed manufacturer according to ISI specifications.

Make certain electrician has calculated total load from various items which would be used in the home. Whether he lays wires which are capable of taking total load.
 
It is seen that many times electricians are careless while putting right load bearing wires for any purpose which wires get burnt at the movement when entire load is put on wires.

House Wiring Rules according to ISI Specification

The wiring ought to be carried out on distribution systems with main and branch distribution boards to convenient centers and it is without isolated fuses.

All conductors should run, so far as possible along ceilings and walls, so as to easily be accessible and capable of being thoroughly inspected.

*In nevertheless wiring shouldn't run above ceiling.
*Circuit on opposite side of three wires system or on several phases of three phases’ product is kept as far apart as you possibly can in every case; the minimum distance should be 7 feet.
*Medium pressure wiring and all sorts of associated apparatus should conform to specification.
*The amounts of points in light circuits shouldn't exceed 10 or the total load on circuit shouldn't exceed 800 watts.
* One circuit is a one connection from electrical meter or main fuse circuit.
* For power wiring circuit the amount of points in a circuit shouldn't be greater than 2 and the size wire is 1.5 mm square for copper and a pair of mm square for aluminum.
* Switch boards ought to be fitted in a height of 1.5 meter.
*Horizontal run of wiring should be at a height of 3 meter.
*Earth wire needs to be 14 SWG in case of copper and 4 mm square in case there is aluminum.
*Fuse wire should be connected to phase wire only.
* Connect a neutral link in neutral wire.
*Connect all switches in phase wire.
*All conductors needs to be of copper and have a cross-section less than 0.0020 sq. inches, nominal area (3/0.029 inches) and each such conductor should be stranded.
*Minimum size of earth wire for light circuit is 1 mm square for copper and 1.5 mm square for aluminum.