We’ll furnish, own and install all meters. The Company also will furnish and own all meter enclosures and sockets, except single-phase self-contained sockets. All current and voltage transformers will be furnished and owned by the Company. Instrument transformer cabinets, where required, shall be furnished and installed by the Customer.
Method of Obtaining
When installing a new service or rewiring an existing service, the Customer shall notify the Company as required in Section 4.2 or 4.3. The Company will specify the location and type of meter socket to be used.
Single-phase self-contained sockets approved by the Company are available from local electrical equipment suppliers. They must comply with the following requirements:
(a) Shall be Underwriters Laboratories Listed
(b) Shall have a Meter socket code on bottom
(c) Shall have a Company label reading:
Approved for Duquesne Light Company (DLC) Service Area
(d) Shall not have lugs for service, telephone or cable grounding
Two hundred ampere, three-phase meter sockets can be obtained from any Division Office, upon receipt of customer service application. The Division Office locations are listed on Pages 3, 4 and 5.
Transockets, transformer rated meter sockets, meter enclosures, and metering transformers will be delivered to the Customer at the job location by the Company or Company Representatives following approval by the Division Office.
Only authorized Company representatives are permitted to install or remove a meter. If removal of meters is necessary when the Customer is installing siding or making other building repairs, the Company will, upon reasonable notice to its Division Office, detach the meter socket, detach and tie up the incoming service line and if necessary, disconnect the service line. The Customer is responsible for removing and re-installing the weather head and service-entrance cable, and remounting the meter socket as described in Section 8.5. The Customer shall mark the location of a suitable stud to facilitate the re-installation of the brackets and service line by the Company. Work on service-entrance cables and meter sockets shall be done by qualified electrical contractors. Upon completion of the building work in the area of the service-entrance equipment, the Company will re-attach and re-connect the incoming service line and reseal the meter.
Breaking of meter seals and removal of meters by customers or electrical contractors, without company notification is prohibited.
Types and Sizes
The type and size of metering equipment will be determined by the Company. It will be based on the type of service and size of service-entrance conductors used by the Customer.
Single-phase services having only a single conductor per line of 250 KCM or less with load up to 35 kVA will be metered with self-contained meters in meter sockets. A self-contained meter is one without separately mounted instrument transformers. Single-phase services having only a single conductor per line, with loads over 35 kVA, will be metered with meters mounted on Transockets as shown in Figure 13. Allowable wire sizes are 250 KCM through 750 KCM aluminum and 4/0 through 500 KCM copper. Transockets are meter-mounting assemblies having built-in current transformers. Information regarding meter sockets for single-phase service is shown in Table I.
Two hundred amp three-phase services having only a single conductor per line of 4/0 or less will be metered with self-contained meters in meter sockets as shown in Figure 12. Three-phase services having only a single conductor per line of 4/0 through 500 KCM including 750 KCM aluminum, will be metered with meters mounted on Transockets as shown in Figure 13. Information regarding meter-mounting equipment for three-phase service is shown in Table II and Table III.
The Customer shall specify either the proper hub size required, or a hub-opening blank-off plate. See Table II. No reducers are permitted. All other hardware required for connection of the Customer's conduit or cable shall be furnished and installed by the Customer.
All service installations with conductors larger than the above, or with more than one-conductor per line, require separately mounted current transformers. They will be metered using 22-inch by 18-inch duplex or 11-inch by 18-inch transformer rated sockets as shown in Figure 15.