Q:

How do you install 100-amp service?

A:

Quick Answer

A 100-amp main breaker panel receives 100-amp service at 240 volts. Electricity enters the home via the meter socket and service-entrance wire. Two-gauge, three-conductor aluminum SER wire is an appropriate 100-amp service-entrance wire. The service-entrance wire runs from the meter socket outdoors to the main breaker panel indoors, delivering the 100 amps of electricity.

Continue Reading

Full Answer

The two black insulated conductors of the service-entrance wire connect to the main lugs on the breaker panel. A 100-amp double pole main breaker limits the amount of electricity coming in from outside. When this main breaker is on, electricity flows to the bus bar of the main breaker panel and is allowed to flow through each branch circuit breaker to individual branch circuits. The neutral conductor of the service-entrance wire connects to the neutral bus bar in the main breaker panel. The neutral bus bar is the connection point for all white neutral wires, which return electricity to the panel after it flows through each branch circuit. The grounding bus bar in the main panel unites all grounding wires from individual branch circuits. In a main breaker panel, the neutral bus bar and grounding bus bar are connected via a bonding strap. The grounding bus bar also connects to a grounding conductor or rod that is located outside of the residence. Electrical service work should always be conducted by a licensed, professional electrician.

Learn more about Electrical

Related Questions

  • Q:

    What size wire is necessary for a 50 amp breaker?

    A:

    A 50-amp breaker uses four wires, two of which are hot feeds of 120 volts. This results in 50 amps at 120 volts for each leg.

    Full Answer >
    Filed Under:
  • Q:

    What are some electrical panel codes?

    A:

    National codes for electrical panel include using anti-oxidant compound on aluminum conductor terminations, and allowing adequate working space around live parts that carry up to 150 volts. Code 240-24 states that electrical panels shall not be located in bathrooms or close to materials that ignite easily. Article 408 in the code outlines the requirements for switchboards and panels. Local building authorities can provide complete information on electrical codes for the area.

    Full Answer >
    Filed Under:
  • Q:

    How do you find the right breaker panel diagram for your home?

    A:

    Places to find home breaker panel diagrams include sites such as Thecircuitdetective.com, Smaller-homes.com and Electricalonline4u.com. These panel diagrams act as guides for electrical wiring in homes. They can also act as reference diagrams for homebuilders in the case of an electrical fault.

    Full Answer >
    Filed Under:
  • Q:

    How do you wire a CFCI breaker?

    A:

    A GFCI, or ground fault breaker, is installed in a main breaker panel to prevent shock hazards along an electrical circuit. When doing electrical work, make sure the main breaker is turned off at the breaker panel.

    Full Answer >
    Filed Under:

Explore