Duquesne Light > Customer Services > Connecting Service > Electric Service Installation Rules >

TYPES OF ELECTRIC SERVICE, DISTRIBUTION

SERVICES AND DEMAND LIMITS AVAILABLE FROM DISTRIBUTION SUPPLY LINES, OPERATING AT 2,400 VOLTS OR HIGHER WITH FACILITIES LOCATED ON CUSTOMER’S PROPERTY

SUPPLY LINE VOLTAGE THREE-PHASE, FOUR-WIRE CIRCUITS
TYPE OF SERVICE			2,400/4,160 VOLTS		13,200/23,000 VOLTS
VOLTAGE	PHASE	WIRES	OVERHEAD LIMITS (kVA) Min.-Max.	UNDERGROUND LIMITS (kVA) Min-Max.		OVERHEAD LIMITS (kVA) Min.-Max)	UNDERGROUND LIMITS (kVA) Min-Max.
120/240	1	3	1-50	1-50		1-100	1-100
230/460	1	3	1-50	NOT AVAILABLE		1-100	NOT AVAILABLE
120/208	3	4	30-300	50-500		30-300	50-1,500
230	1	2	1-50	1-50		1-100	1-100
230	3	3	1-300	50-500		1-300	50-1,000
277/480	3	4	NOT AVAILABLE	150-500		50-500	150-2,000
460	1	2	1-50	NOT AVAILABLE		1-100	NOT AVAILABLE
460	3	3	50-500	150-500		50-500	150-2,000
2,400	1	2	1-50	NOT AVAILABLE		50-100	NOT AVAILABLE
2,400	3	3	NOT AVAILABLE	NOT AVAILABLE		NOT AVAILABLE	225-2,000
2,400/4,160	3	4	150-500	150-500		150-500	225-2,000
13,200/23,000	3	4	NOT AVAILABLE	NOT AVAILABLE		500-2,000	500-2,000

NOTE: HIGHER LIMITS ARE AVAILABLE IN SOME LOCATIONS. CHECK WITH THE COMPANY