Install an intelligent electrical system
A good electrical system should incorporate a good grounding system as well. Modern homes need a well-designed grounding system. Even though it leads to earth pits, a proper electrical system has separate schemes for ground and neutral originating from your electrical system.
Today, a variety of digital signals are invading our homes and work places, increasing year after year. This gives rise to another dimension to the design of grounding systems for homes. The digital signals and other inadequacies in the design of the electronic boards for electromagnetic compatibility would lead to noticeable noise in other electronic gadgets. You would notice a flat, irritating noise on your phone when the person at the other end receives a call on his cell phone. A flickering fluorescent light causes disturbance to the images on your television. These are some of the results of poor grounding of your electrical system and, bonds and shields into digital devices including cellular phones. The result is the generation and propagation of broadband noise.
Ground and neutral connections:-
You may have either a single phase or three phase supply from your utility company. Most electrical gadgets need single phase power connection. The following need three phase power connection. Air conditioners, which have, typically, a three ton capacity or more. Deep bore well motors with capacities exceeding one horse power. With a single phase supply, you get two wires from the distribution point, maybe a pole, to the power panel board with a consumer power metre into your premises. A separate thick copper wire runs along the exterior wall and terminates in a pipe pegged into the earth pit. Three phase power connection has three live wires and a neutral wire. Ground line runs directly from the control panel into the earth pit.
Separate grounding scheme:-
You will notice that the neutral wire of your electrical system is connected to the earth connection near your local transformer that the utility company has installed. You may wonder as to why your home should have a different grounding arrangement for your electrical system. There are many reasons for this. The most important reason is safety of gadgets and inmates of the house. When there are separate wires for neutral and ground, the risk of electrical shocks or fire resulting from a problem in electrical wiring, is reduced. If there is a common wire for both neutral and ground, then if wire is cut anywhere in the electrical system, it will cause the shield or protective system to be raised to the potential of the phase wire. This scenario is more dangerous than not having a protective ground in your electrical system.
Different wires for ground and neutral:-
When the wires for ground and neutral are separate, then a cut neutral wire causes only the equipment to stop working and doesn’t create dangerous situation. If the ground wire gets cut by accident, there is no danger caused before some equipment gets damaged. Thus, when there are separate wires for neutral and ground, a single wire fault, which is the most frequent problem, keeps the inmates of the house as well as the gadgets in the electrical systems safe. A single wire fault, cut or coming in contact with any other wire, could cause no immediate danger to the user of the equipment in the electrical system. When the live wire (phase wire or hot wire) comes in contact with the ground or neutral wire, the fuse blows or the circuit breaker trips immediately.
With the fuse blown or circuit breaker tripped, posed by this defective condition, the dangers of electrical hazards are nil. When a neutral wire comes in contact with a ground wire, it poses no immediate danger, just nasty ground loop problems start to occur. If your have a GFCI or other ground leakage detector installed in the electrical system, it will cut the power to the outlet.
If either a live wire or a neutral wire is cut, power to the equipment is shut off. When the ground wire is disconnected or cut, it continues to work well unless there is a fault inside the equipment. It is potentially as dangerous as using an ungrounded outlet in the same place. But there is no immediate danger. So any single failure does not cause great danger in this scheme.




