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2025SU ELC-119-02BL NEC Calculations
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A trade size "2" Rigid conduit has several conductors installed with a total cross-sectional area of 0.689 sq. in. How many size 10 AWG type THWN-2 copper conductors can be added?
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What is the allowable ampacity of each current carrying conductor of a circuit supplied by three 500 Kcmil type THWN Copper conductors installed in a conduit in a wet location?
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An 1/0 AWG conductor with type THHN insulation has an insulation thickness of:
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The following conductors are to be installed in a raceway:Seven (7) #8 THWThree (3) #10 THHNFour (4) #6 THWNIf a rigid metal conduit is used, it would need to be sized at:
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A trade size 3-1/2, Rigid Metal Conduit (RMC) contains (6) Six, size 3/0 AWG, type THHN copper conductors. How many more 3/0 AWG, type THHN copper conductors can be added?
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The total Cross-sectional area of the conductors installed in an 24 inch conduit nipple should not exceed ______________ of the total cross-sectional area of the conduit nipple.
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The ampacity of a conductor must be adjusted if the raceway it is in contains:
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A metal wireway contains 20 current carrying conductors. These conductors have a total cross-sectional area of 12.1 Sq. inches. The minimum size wireway to use for this installation should be:
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What is the allowable ampacity of a single-insulated cooper 1/0 AWG type TW rated 600 volts if installed in free air?
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A metal wireway contains 21 current carrying conductors. What is the maximum allowed number of conductors that can be added without having to adjust the allowable ampacity of the conductors?
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