Kaito_mukai
New User
- Location
- Seattle
- Occupation
- Electrician
Studying to take my Admin and am confused on why they didn’t take into consideration of the service factor.
There are three motors; one 5hp, 230v, single-phase motor with a service factor of 1.20; and two 11/2hp, 120v, three-phase motors. Using an inverse time breaker, the 3-wire feeder conductor protective device after balancing all three motors will be ____.
(a) 60A
(b) 70A
(c) 80A
(d) 90A
The answer is D
There are three motors; one 5hp, 230v, single-phase motor with a service factor of 1.20; and two 11/2hp, 120v, three-phase motors. Using an inverse time breaker, the 3-wire feeder conductor protective device after balancing all three motors will be ____.
(a) 60A
(b) 70A
(c) 80A
(d) 90A
The answer is D
