Debe usarse una caja de empalmes cuadrada de _____ si hay un conducto de 6" (15.24 cm) y dos conductos de 4" (10.16 cm) que entran en un lado de la caja y salen en un ángulo de 90° por otro lado de la caja. (Suponga que el tamaño de conductor es AWG número 4 o mayor).

a. 24" (60.96 cm)
b. 30" (76.2 cm)
c. 36" (91.44 cm)
d. 44" (111.76 cm)


d. 44" (111.76 cm)

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