25 Standards Every Inspector Should Know InterNACHI
Service
____ is a general term used to refer to all of the service conductors and equipment for delivering electricity from the utility company to the wiring system of the building served. ____ begins at the load end of the service drop or lateral and ends at the enclosure that houses the main disconnecting means. It is typically referred to as the main panel. The first point of disconnect for the conductors from the utility company is the service or main pane
100-AMP
Only one service should be installed for each dwelling or building. A minimum ____-amp service is needed for a single residential dwelling unit. 0:06
/
0:30
False - It is not allowed to be in these places
True or False: The service panel is allowed to be located inside a bathroom, over stairs, or inside a clothes closet.
#4 Copper
#2 Aluminum or Copper-Clad Aluminum
100 AMP Service requires what size Copper Conductor? Aluminum or Copper-Clad Aluminum Conductor?
#2 Copper
1/0 Aluminum or Copper-Clad Aluminum
125 AMP Service requires what size Copper Conductor? Aluminum or Copper-Clad Aluminum Conductor?
#1 Copper
2/0 Aluminum or Copper-Clad Aluminum
150 AMP Service requires what size Copper Conductor? Aluminum or Copper-Clad Aluminum Conductor?
2/0 Copper
4/0 Aluminum or Copper-Clad Aluminum 200 AMP Service requires what size Copper Conductor? Aluminum or Copper-Clad Aluminum Conductor?
Abrasion
Service entrance conductors must be protected from ____ by the use of plastic bushings. Bonding bushings and jumpers are required to be used for metal conduits entering the panel enclosure through concentric or eccentric knockouts.
Six
A means of disconnect for the service must be located either outside or inside the dwelling unit near the point of entrance of the service conductors. No more than ____ hand movements, or no more than ____ circuit breakers, may be used to disconnect all service. Typically, a main disconnect switch is required by the local authority.
The main disconnect should be clearly marked to identify that it has the service disconnect.
Neutral
A grounded conductor is a conductor that is grounded. The grounded conductor is commonly referred to as the ____ conductor. It is usually identified by white or gray insulation.
Hot or Live An ungrounded conductor is a conductor that is not
grounded. The ungrounded conductor is commonly referred to as the ____ or ____ conductor. It is usually identified by black or red insulation (any color other than green, white or gray).
Grounding Electrode
A ____ is a device that makes an electrical connection to the earth. A grounding electrode can be rebar in a footer, a copper underground water pipe with 10 feet of contact with the earth, or a grounding rod.
Ground
An equipment grounding conductor is used to ground the electrical equipment. The equipment grounding conductor is commonly referred to as the ____. These conductors are typically identified by green insulation, or the conductor is bare.
Grounding Electrode
A grounding electrode conductor (GEC) is a conductor used to connect the grounding electrode
to the equipment grounding conductor, the grounded conductor, or both at the service, at each
building or structure that is supplied by a feeder or branch circuit, or at the source of a separately derived system. The GEC is a conductor used for
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