2 Cores Copper Concentric Cable



1. Appliction: 

These requiremnets cover Type USE and USE-2 (below-ground) and Type SE (above-ground) power cable for installation in accordance with Article 338 and other applicable parts of the National Electrical Code (NEC). These cables are for the service-entrance and other (NEC) uses described in 1.4 1.8. In a multiple-conductor cable that is other than submersible-pump cable and does not have a grounding conductor it is appropriate to have one circuit conductor without insulation. It is also appropriate for a sunmersibe pump cable to have a grounding conductor and for Type USE and USE-2 cables to have an insulated grounding conductor. Each insulated conductor in these cables is rated for 600V. Type USE cable has thermose insulation, except for HDPE portion of HDPE-over-XLPE insulation where used for single-conductor Type USE cable. Type USE cable has thermoset or thermoplatic insulation.

 2. Specification

Type SE cable meets or exceeds UL Standard 44 for XHHW-2 conductors or UL 83 for THW conductors, UL Standard 854.

3. Construction

Type SE cable is constructed with sunlight resistant Type XHHW-2 conductor or Type THW conductors. Copper conductors are annealed (soft) copper. Cable assembly plus reinforcement tape are jacketed with sunlight resistant thermoset or thermoplastic material, available as 1 conductor with a concetric ground, 2 conductor with a round and flat or concentric round, or 3 conductor with a bare ground. SE cable is jacketed with gray sunlight resistant thermoset or thermoplastic material.

4. Type

Single core type round with full neutral entrance cable

Single core type round with less neutral entrance cable

Single core type round with full neutral and communication cores entrance cable

Two core type Flat with full neutral entrance cable

Two core type round with full neutral entrance cable
Three core type round with full neutral and communication cores entrance cable 
Three core type round with less neutral entrance cable.

SPEC mm2	Conductor structure		Insulation Material	Insulation Thickness (mm)	Approx overall diameter (mm)	Approx weight (kg/km)
	Phase (compacted Al)	Neutral (alloy)
	No./mm	No./mm
1*16+1*16	7/1.72	7/1.72	XLPE     (HDPE)	1.2	12.5	110.1
1*25+1*25	7/2.15	7/2.15		1.2	14.9	163.9
1*35+1*35	7/2.54	7/2.54		1.4	17.5	229.0
1*50+1*50	7/2.92	7/2.92		1.4	20.1	300.0
1*70+1*70	19/2.15	19/2.15		1.4	23.6	423.2
1*95+1*95	19/2.54	19/2.54		1.6	27.6	585.4
2*16+1*16	7/1.72	7/1.72		1.2	14.2	175.8
2*25+1*25	7/2.15	7/2.15		1.2	16.7	258.4
2*35+1*35	7/2.54	7/2.54		1.4	19.7	361.2
2*50+1*50	7/2.92	7/2.92		1.4	22.5	472.1
2*70+1*70	19/2.15	19/2.15		1.4	26.1	658.3
2*95+1*95	19/2.54	19/2.54		1.6	30.5	908.2
3*16+1*16	7/1.72	7/1.72		1.2	16.3	241.5
3*25+1*25	7/2.15	7/2.15		1.2	19.1	353.6
3*35+1*35	7/2.54	7/2.54		1.4	22.5	493.5
3*50+1*50	7/2.92	7/2.92		1.4	25.7	644.1
3*70+1*70	19/2.15	19/2.15		1.4	29.7	895.2
3*95+1*95	19/2.54	19/2.54		1.6	34.6	1233.5

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