Service Components
This device measures and records the amount of electricity used in a residence.
What is the electric meter?
Service conductors routed overhead are referred to as this.
What is a service drop?
This wire connects the neutral bus bar to a grounding electrode.
What is the grounding electrode conductor (GEC)?
Service panels should not be placed in these three areas.
What are bathrooms, storerooms, and damp basements?
Minimum clearance for overhead conductors above sidewalks with voltages under 150V.
What is 10 feet?
The power coming into a device like a circuit breaker is known as this side.
What is the line side?
Underground service conductors are called this.
What is a service lateral?
The GEC must never be interrupted and is usually made of this material.
What is copper, aluminum, or copper-clad aluminum?
This piece of equipment must be located as close as possible to where service conductors enter the structure.
What is the main disconnect or service disconnect?
Clearance for service conductors over residential driveways with voltages under 300V.
What is 12 feet?
This piece of equipment is not part of the service equipment but must be rated for voltage and current.
What is the meter socket?
This installation method typically requires more components but is easier to replace.
What is overhead service?
The proper size of the GEC is determined by this NEC table.
What is Table 250.66?
According to the NEC, how many disconnects are permitted from a single service drop or lateral?
What is six?
The minimum vertical clearance for conductors over railroad tracks.
What is 24.5 feet?
This type of panel contains the main disconnect and circuit breakers or fuses.
What is the main service panel?
This is less prone to damage and uses fewer components.
What is underground service?
For a 200A service using 3/0 copper conductors, the GEC should be this size copper.
What is 4 AWG copper?
This NEC article provides clearance rules above rooftops for service conductors.
What is NEC 230.24(A)?
Service conductors must be this distance from a window in any direction.
What is 3 feet?
This component connects the utility wiring to the load end of the service conductors.
What is the service equipment?
This point marks the connection between utility wiring and premises wiring.
What is the service point or point of attachment?
This NEC section specifies a minimum 100A rating for a single-family dwelling service disconnect.
What is NEC 230.79(C)?
The service disconnect must be located in a place with this key characteristic.
What is readily accessible?
If the roof slope is at least 4" in 12", the minimum vertical clearance may be reduced to this.
What is 3 feet?