320A Single Phase URD Meter Loop Installations

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Clarence Cummings
6 years ago
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1 320A Single Phase URD Meter Loop Installations Location: The meter loop shall be mounted on the side of the pedestal facing the consumer's lot. (The side being one of the four flat surfaces of the pedestal which faces towards the consumer's lot.) Weatherproof fused or breaker protected main disconnect panel will have a main disconnect on the outside of the building regardless of the number of circuit breakers. Rack: 1. Shall be self supporting with a minimum of 2" schedule 40 galvanized rigid pipes and caps, cut to the required length, with two feet of the pipe set in the ground in concrete. 2. It shall be stood away from the pedestal a minimum of 18" and not more than 24" with a 3" schedule 40 galvanized rigid pipe nipple of required length. 3. Grounding bushings shall be installed on the 3" nipple inside the meter socket and pedestal with regular locknuts backing them up on the outside of the meter socket and meter pedestal. 4. The cross supports for the meter socket, panel, or panels shall be a minimum of 3/4" x 1 1/2" unistrut of the required length and shall not extend past the rigid pipe supports more than 2" and shall be bolted firmly to the rigid pipe. Wire Size: Shall be a minimum of 350 copper or equivalent aluminum with equal size neutral or one standard size smaller. (Parallel conductors of 2/0 copper and 4/0 aluminum for residences may be used.) Installation of the Wire: The wire shall run from the line side of the meter socket into the pedestal allowing 36" of tail to connect to the pedestal connectors and the same size wire or equivalent parallel conductors shall be run from the load side of the meter socket to the panel or panels. (If parallel conductors are used, double barrel lugs shall be used. Customer must purchase double barrel lugs if needed.) Pipe Nipples Between the Meter, s, and Gutters: 1. 3" Schedule 40 galvanized rigid or IMC nipples shall be used between the meter socket and 400A panel or gutter when used. 2. 2" Schedule 40 galvanized rigid or IMC nipples shall be used between the meter socket and or 125A panels or between or 125A panels and the gutter. Grounding Bushings: Shall be used on the inside of the meter socket, panel, or panels attached to the grounding bus bar with a #6 copper grounding conductor. Regular locknuts shall back them up on the outside of the meter socket, panel, or panels. drawn: REB approved MJB Page 1

320A Loops on Meter Pedestals Side by Side Combination Member will be responsible for the installation of underground cable from the breaker to the

Conductor size will be based upon member load, location of meter, and National Electric Code for size of conduit.

rigid nipple between the meter socket and meter pedestal 44" Minimum from top of pipe to grade 320A Meter or 125A Minimum of 2" rigid galvanized

2 320A Loops on Meter Pedestals Side by Side Combination Member will be responsible for the installation of underground cable from the breaker to the load. The underground cable used shall be an approved type for underground installation (USE or UF type). Conductor size will be based upon member load, location of meter, and National Electric Code for size of conduit. Minimum 2" rigid galvanized cap Meter Pedestal The rack should be separated a minimum of 18" or a maximum of 24" from the meter pedestal, use a 3" rigid nipple between the meter socket and meter pedestal 44" Minimum from top of pipe to grade 320A Meter or 125A Minimum of 2" rigid galvanized pipe Rigid pipe to be set in concrete 2' deep Unistrut support as needed Minimum 2" rigid nipples between panels Side Mount Combination 44" Minimum from top of pipe to grade 320A Meter or 125A drawn: REB approved MJB Page 2

Transformer Top View of 320A URD Meter Loop off a Meter

18" to 24" Combination maximum between pedestal 3" Rigid

nipples between panels 320 Meter Loop Rack Must Face Towards

3 Transformer Top View of 320A URD Meter Loop off a Meter Pedestal Pad or Pedestal Minimum of 2" rigid pipe Minimum of 18" to 24" Combination maximum between pedestal 3" Rigid galvanized Pad and rack nipple Minimum 2" rigid galvanized nipples between panels 320 Meter Loop Rack Must Face Towards the Lot to be Served Lot Line Meter Meter drawn: approved REB MJB Page 3

Side Mount with Trough Combination Member will be responsible for the installation of

The underground cable used shall be approved type for underground installation (USE or UF

Conductor size will be based upon member load, location of meter, and National Electric Code

44" Minimum from top of pipe to grade 320A Meter or 125A Service conductors only Trough to be

4 Side Mount with Trough Combination Member will be responsible for the installation of underground cable from the breaker to the load. The underground cable used shall be approved type for underground installation (USE or UF type). Conductor size will be based upon member load, location of meter, and National Electric Code for size of conduit. 44" Minimum from top of pipe to grade 320A Meter or 125A Service conductors only Trough to be sized according to NEC requirements 3" minimum rigid nipple between meter socket and trough Ground 2" nipples from panel to trough Ground Level 250A to 400A 44" Minimum from top of pipe to grade 320A Meter 250A or 400A 3" minimum rigid nipple between meter socket and main panel drawn: approved REB MJB Page 4

Typical URD 320A Loop on the Side of a House Any Loop Configuration

3" Schedule 80 URD lateral Note: The URD lateral from the pad mount

5 Typical URD 320A Loop on the Side of a House Any Loop Configuration Detailed Can Be Used 5' to 6' to center of meter socket 320A Meter or 125A 3" Schedule 80 URD lateral Note: The URD lateral from the pad mount transformer must be inspected by the underground inspector in accordance with existing requirements. Minimum of 2" nipples from meter socket to panels Ground rod 3/4" x 8' with #2 copper from meter to ground rod drawn: approved REB MJB Page 5

Typical URD 320A Free Standing Rack Any Loop Configuration Detailed Can Be Used Member will be responsible for the

The underground cable used shall be an approved type for underground installation (USE or UF type).

Please contact District Office prior to construction of this rack Unistrut support as needed Minimum 2" rigid

6 Typical URD 320A Free Standing Rack Any Loop Configuration Detailed Can Be Used Member will be responsible for the installation of underground cable from the breaker to the load. The underground cable used shall be an approved type for underground installation (USE or UF type). Conductor size will be based upon member load, location of meter, and National Electric Code for size of conduit. Please contact District Office prior to construction of this rack Unistrut support as needed Minimum 2" rigid galvanized cap 4' 320A Meter or 125A Minimum of 2" rigid galvanized pipe to be set in 2 feet of concrete 3/4" X 10' Ground Rod Minimum 2" rigid nipples between panels #2 Copper minimum drawn: approved JBS MJB Page 6

Typical 320A Single Phase Loop on a Meter Pole with Side by Side Mount Weatherhead to be within 12" from the top of the pole No member owned facilities on PEC poles other than meter loops.

8 Typical 320A Single Phase Loop on a Meter Pole with Side by Side Mount Weatherhead to be within 12" from the top of the pole No member owned facilities on PEC poles other than meter loops. Member shall purchase meter socket. Member will be responsible for replacement and repair of meter loop, including meter socket. Minimum of 350 MCM copper or equivalent aluminum with 30" of tails out of the weatherhead. Neutral conductor must be electrically continuous through the meter socket to the main panel and must be attached to the meter socket. See note on page 7. 3" Schedule 40 rigid pipe, IMC, or EMT with weather tight connectors or electrical grade PVC 3-3" Two hole straps for the type of pipe being used Rigid cap sized for the pipe used Unistrut minimum 3/4" X 1 1/2"of required length 5' Minimum 6' Maximum 320A Meter or 125A 2" Minimum rigid galvanized pipe must be used to make the vertical supports Rigid posts must be set a minimum of 2' in the ground and cemented Ground Level #2 copper ground wire 3/4" x 8' copper ground rod drawn: approved REB MJB Page 8

Typical 320A Single Phase Loop on a Meter Pole with Side Mount s Weatherhead to be within 12" from the top of the pole No member owned facilities on PEC poles other than

Minimum of 350 MCM copper or equivalent aluminum with 30" of tails out of the weatherhead.

3" Schedule 40 rigid pipe, IMC, or EMT with weather tight connectors or electrical grade PVC 3-3" Two hole straps for the type of pipe used Unistrut minimum of 3/4" x 1

9 Typical 320A Single Phase Loop on a Meter Pole with Side Mount s Weatherhead to be within 12" from the top of the pole No member owned facilities on PEC poles other than meter loops. Member shall purchase meter socket. Member will be responsible for replacement and repair of meter loop, including meter socket. Minimum of 350 MCM copper or equivalent aluminum with 30" of tails out of the weatherhead. Neutral conductor must be electrically continuous through the meter socket to the main panel and must be attached to the meter socket. See note on page 7. 3" Schedule 40 rigid pipe, IMC, or EMT with weather tight connectors or electrical grade PVC 3-3" Two hole straps for the type of pipe used Unistrut minimum of 3/4" x 1 1/2" of required length 5' Minimum 6' Maximum 320A Meter or 125A 2" Minimum rigid galvanized pipe must be used to make the vertical supports Rigid posts must be set a minimum of 2' in the ground and cemented Ground Level #2 copper ground wire 3/4" x 8' copper ground rod drawn: approved REB MJB Page 9

UNDERGROUND SERVICE ENTRANCE LOCATION. No meter base or entrance should be installed before an KREMC engineer has checked the proposed location.

UNDERGROUND SERVICE ENTRANCE LOCATION. No meter base or entrance should be installed before an KREMC engineer has checked the proposed location. UNDERGROUND SERVICE No meter base or entrance should be installed before an KREMC engineer has checked the proposed location. Entrance cabinet must be directly through wall or directly under meter in basement.