Dec 10
12
Understanding Electrical Service Ampacity and Voltage
Some people want to know the number of appliance that they could operate all at once. Because of their curiosity, they tend to ask questions to their electrical service providers. The usual questions asked by these residents are about how much current is available to use in their homes? Sometimes it really sounds funny, but what they are really interested in is how much the ampacity and voltage do their homes receive.
If you live in the United States, then the common voltage supplied to your homes by these electric service providers is 240V on the average. This amount is also supplied for residents of Canada. The reason for this is because the service panels that are used by the service providers maintain 240V and 120V. But this could still vary because of the fluctuation of electricity.
Two 120V wires provide the power for the homes. These wires are individual cable wires which are connected to the service panel of the electric service provider. These panel supplies the building of 240V of electricity.
In the past, houses are supplied with 120V and have an ampacity of 30A. During the 1940s these set up is vey common with residential houses. You can still find these houses in Canada, Mexico and in the United States.
Nowadays, the common amperage supplied by electric service providers to residential homes averages 150A to 200A. The change of service was caused by the governments issuance of building standards. In 1959, this standard for electrical service was issued and a lot of building inspection standards has been upgraded since then. Although until today, there are still some standards that remain the same.
Doing electrical inspections is very dangerous. That is why it is not advised for home owners or building occupants to do them. Even electrical inspectors should take extreme precaution when doing this check up. Those individuals that do these manual inspections should understand the safe electrical procedures before checking out any electrical equipment or system.
If you are not a professional inspector but you are planning to do an inspection by yourself, you are advised to take caution. Prepare all the tools you need and know all the safety guidelines in doing an inspection. It is still recommended that you hire a professional for the job. If you are a professional, never under estimate the dangers in your line of work. Proceed with care.
Waldron Electric performs all phases of amps & volts determination in a building.
