Who is responsible for the complete installation of HT service equipment?

• A. Utilities are responsible for the complete installation of HT service equipment.
• B. The customer is responsible for installation up to the meter.
• C. The local city installs HT service equipment.
• D. The customer is responsible for the complete installation of all their equipment at their cost.

Answer: (D)

High-tension (HT) service equipment is treated as part of the customer’s own installation. The utility provides the service connection and any utility-owned equipment up to the point of delivery, but the complete HT installation—the customer’s HT switchgear, protective devices, feeders, and related equipment on their property—is the customer’s responsibility and must be paid for by the customer. This arrangement ensures the customer can design, install, and maintain the system to meet their specific needs and local codes. The other options would imply the utility or city handles the entire HT installation, or that only up to the meter is the customer’s responsibility, which doesn’t match how HT service is typically managed.