An EMT raceway contains two 3-phase, 480-volt branch circuits. What minimum size THHN branch circuit conductor is required for one of the circuits when it supplies a noncontinuous load of 27 kW?

Question

27-12-2021
Physics

contestada

An EMT raceway contains two 3-phase, 480-volt branch circuits. What minimum size THHN branch circuit conductor is required for one of the circuits when it supplies a noncontinuous load of 27 kW?

Respuesta :

Otras preguntas

Simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. [tex] \sqrt{96x^2y} [/tex]Rewrite without rational exponents, a

Why did the Indus Valley civilization come to be known as harappan civilization ?

Differentiate bet prokaryotic and eukaryotic cells

What is the value os f(150), And what does f(150) represent?

which of the following are heterotrophic or autotrophic, how many cells does each one have, the presence or absence of cell organelles for example, nucleus, ce

Diagram of a red blood cell

What is the value os f(150), And what does f(150) represent?

Three apples and 2 oranges cost $1.25, while 2 apples and an orange were 75 cents. At the rate, find the cost of 6 apples and an orange. ( please show steps tha

which is known as kitchen of a cell?

gmm0520 gmm0520 · Answer 1 · 2022-01-04T22:41:29+01:00

Answer:8 AWG

Explanation: 6 current carrying conductors with 2 - 3 phase branch circuits. Divide 27000 by (480v × 1.732 or square root of 3) and you get 32.46 amps. Now using the code book, divide 32.46 by the adjustment factor of 6 CCC's which is .8 and you get 40.61 amps. Now go to Table 310.16 in the 2020 NEC book and you'll see that in the 90° column that 40.61 amps is above #10 AWG so you size up to #8 AWG.