Know house wiring rules as per ISI specifications

I’ve come to know some Indian electricity ISI rules which I want to share with you for the safety of your house and you too. To make your home electric shock proof, keep in mind the following precautions while doing house wiring.

• Implement wiring on distribution system: The wiring should be carried out on distribution systems with main and branch distribution boards to convenient centers. It is without isolated fuses. As far as possible all conductors should run along walls and ceilings for thorough inspection.
• Don’t exceed load on circuit: The number of points on light circuits should not exceed 10 or total load on circuit should not exceed 800 watts. For power wiring circuit the number of points in a circuit should not be more than 2 and the size of wire should be 1.5 mm square for copper and 2 mm square for aluminum.
• Utilize earth wire of proper gauge: Earth wire should be 14 SWG in case of copper and 4 mm square in case of aluminum. Fuse wire should be connected to phase wire only and neutral link should be connected to neutral wire. Connect all switches in phase wire. Minimum size of earth wire for light circuit is 1 mm square for copper and 1.5 mm square for aluminum.

To know more ISI house wiring rules, click on this link.

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Electric Shock – Causes & Preventions

Electric shock is the flow of electrons, electrical current through body. Electric current gives shock depending on the intensity of voltage. Electric shock occurs due to leakage and earth faults in electrical appliances.

What causes electric shock?
Open electric sockets, fallen high voltage line, or any exposure of an electrical energy source cause electrical shock. If you touch electric wire of low voltage, you will get light electric shock but if you get in touch with high voltage electric wire, you would get high electric shock. Electric shock causes pain to our body, generate heat inside body and can damage our tissues leading to permanent disability.

How to prevent electric shock?
Stop electric supply while repairing: Shut electric supply from the mains before taking up electrical repair work. Make sure the power is off using a simple pocket tester, a multi-meter, or lamp, blow dryer or any other appliances after closing power supply.

Make use of good wiring: Utilize good wiring and change any damaged, rusted wiring immediately. Don’t make joints in wiring. All necessary joints should have proper tapes/insulation. Avoid loose connection in wiring and make use of fuse / MCB’s of appropriate. Keep away from overhead lines and do not touch broken wires.

Utilize safety standards: Safety equipments such as masks for dust, safety glasses for eye protection and gloves to preserve your hands should be used at the time of electric works. Keep your face away from the panel at the very moment you turn on or off a breaker.

For more causes and preventive tips on electric shock, click here.
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