When two to six service disconnecting means are grouped at one location, how many sets of service-entrance conductors are permitted to supply such enclosures?

When two to six service disconnecting means are grouped at one location, how many sets of service-entrance conductors are permitted to supply such enclosures?

• A. Three
• B. One
• C. Two
• D. Four

Answer: (B)

When two to six service disconnecting means are grouped at one location, they are treated as a single service equipment location. That means all of them must be fed from one source to keep the system easily shut off and clearly defined as one service. Allowing more than one set of service-entrance conductors to feed that group would create multiple sources for the same equipment, which can lead to confusion, backfeeding risks, and improper coordination of the disconnects. So the correct approach is to use a single set of service-entrance conductors to supply the entire group.

When two to six service disconnecting means are grouped at one location, they are treated as a single service equipment location. That means all of them must be fed from one source to keep the system easily shut off and clearly defined as one service. Allowing more than one set of service-entrance conductors to feed that group would create multiple sources for the same equipment, which can lead to confusion, backfeeding risks, and improper coordination of the disconnects. So the correct approach is to use a single set of service-entrance conductors to supply the entire group.