ELECTRICAL CODE CALCULATIONS LVL 1 LESSON 2 -
DETERMINING CONDUCTOR AMPACITY #25
The equipment grounding conductor is considered to be a current-carrying conductor
according to the provisions of Table 310.15(C)(1). - correct answer False 310.15(F)
Control circuits are considered to be current-carrying conductors according to the
provisions of Table 310.15(C)(1). - correct answer False 310.15(C)(1)
The neutral conductors of a 4-wire, 3-phase wye circuit, where most of the load is
nonlinear and connected to ? , are considered to be current-carrying conductors
according to the provisions of Table 310.15(C)(1). - correct answer fluorescent lighting
310.15(E)(3)
The neutral conductor of a 2-wire, single-phase circuit supplying a household
refrigerator is considered to be a current-carrying conductor according to the provisions
of Table 310.15(C)(1). - correct answer True 310.15(E)
Determine the ampacity of three 8 AWG THWN copper conductors installed in EMT, in
an ambient temperature of 30°C. All of the conductors are current-carrying conductors. -
correct answer 50A Table 310.16
Determine the ampacity of three 8 AWG THWN copper conductors installed in EMT in
an ambient temperature of 40°C. All of the conductors are current-carrying conductors.
Calculate to the nearest ampere. - correct answer 44A
Three 1/0 AWG XHHW-2 aluminum conductors are installed in a rigid metal conduit,
Type RMC, in an ambient temperature of 105°F. All of the conductors are current-
carrying conductors. Determine the ampacity of the current-carrying conductors.
Calculate to the nearest ampere. - correct answer 117A
A 3-conductor 8 AWG copper Type MC cable is installed in an area with an ambient
temperature of 96°F. The conductors within the cable assembly have THHN insulation,
and all three conductors are considered current-carrying conductors. Determine the
ampacity of the current-carrying conductors in this application. Calculate to the nearest
ampere. - correct answer 50A
Determine the ampacity of six 8 AWG THW copper conductors installed in EMT in an
ambient temperature of 30°C. All of the conductors are current-carrying conductors.
Calculate to the nearest ampere. - correct answer 40A
Twenty 10 AWG THWN aluminum current-carrying conductors are installed in the same
conduit in an ambient temperature of 30°C. Determine the ampacity of each of the
current-carrying conductors. Calculate to the nearest ampere. - correct answer 15A
DETERMINING CONDUCTOR AMPACITY #25
The equipment grounding conductor is considered to be a current-carrying conductor
according to the provisions of Table 310.15(C)(1). - correct answer False 310.15(F)
Control circuits are considered to be current-carrying conductors according to the
provisions of Table 310.15(C)(1). - correct answer False 310.15(C)(1)
The neutral conductors of a 4-wire, 3-phase wye circuit, where most of the load is
nonlinear and connected to ? , are considered to be current-carrying conductors
according to the provisions of Table 310.15(C)(1). - correct answer fluorescent lighting
310.15(E)(3)
The neutral conductor of a 2-wire, single-phase circuit supplying a household
refrigerator is considered to be a current-carrying conductor according to the provisions
of Table 310.15(C)(1). - correct answer True 310.15(E)
Determine the ampacity of three 8 AWG THWN copper conductors installed in EMT, in
an ambient temperature of 30°C. All of the conductors are current-carrying conductors. -
correct answer 50A Table 310.16
Determine the ampacity of three 8 AWG THWN copper conductors installed in EMT in
an ambient temperature of 40°C. All of the conductors are current-carrying conductors.
Calculate to the nearest ampere. - correct answer 44A
Three 1/0 AWG XHHW-2 aluminum conductors are installed in a rigid metal conduit,
Type RMC, in an ambient temperature of 105°F. All of the conductors are current-
carrying conductors. Determine the ampacity of the current-carrying conductors.
Calculate to the nearest ampere. - correct answer 117A
A 3-conductor 8 AWG copper Type MC cable is installed in an area with an ambient
temperature of 96°F. The conductors within the cable assembly have THHN insulation,
and all three conductors are considered current-carrying conductors. Determine the
ampacity of the current-carrying conductors in this application. Calculate to the nearest
ampere. - correct answer 50A
Determine the ampacity of six 8 AWG THW copper conductors installed in EMT in an
ambient temperature of 30°C. All of the conductors are current-carrying conductors.
Calculate to the nearest ampere. - correct answer 40A
Twenty 10 AWG THWN aluminum current-carrying conductors are installed in the same
conduit in an ambient temperature of 30°C. Determine the ampacity of each of the
current-carrying conductors. Calculate to the nearest ampere. - correct answer 15A
