Service Equipment
What is a Service Drop?
The overhead conductors between the utility and service point.
Ground rods must be at least ___FT in length.
8FT
Plug Fuses may be used to in circuits that do not exceed ___
125v
Which NEC code covers services?
NEC 230
What is the definition of Ground?
The Earth
What is maximum size service for a dwelling unit?
400A
How far apart must ground rods be driven?
What is the interrupting rating on a series rated system?
10,000 ampere
NEC 110.26(A) covers ___?
Working space around electrical equipment
Two or more normally insulated circuit conductors that come in contact with each other is known as a ___
Short Circuit
One hole straps should be secured __ ft apart and __ in. from equipment.
3ft
8in
Why is bonding at the service-entrance equipment Important?
Service entrance conductors do not have overcurrent protection at their line side.
3ft
What NEC code requires that a circuit breaker open all ungrounded conductors of a circuit?
NEC 240.15(B)
Connected to establish electrical continuity and conductivity is known as ___.
Bonded
Minimum width of working space around an electrical panel?
30in
What is a UFER?
Concrete-encased grounding electrode
What is the interuppting rating on a fully rated system?
20,800 ampere
NEC ___ states that if ___ AWG or larger ungrounded circuit conductors enter a cabinet, box enclosures or raceway, an insulating bushing or equivalent must be used.
NEC 300.4(G)
4
What is a ground fault? (in your own words)
an inadvertent contact between an energized conductor and ground or a grounded equipment frame
Minimum height of service conductors over a drive way?
12ft
When using a metal water pipe as a grounding electrode, a(n) _____ is required.
Supplemental Electrode
Does Mr. Gess actually look good with a mustache?
No
-Mrs. Gess
What NEC table is used for single-phase dwelling services and feeders?
NEC Table 310.12
What is a conductor that acts as the link between the equipment grounding conductor and the grounded service conductor?
Main Bonding Jumper