NA2XSEY Three Core Medium Voltage Cable

Applications

NA2XSEY cables are three-core class 2 stranded aluminium medium voltage cables, the cables are mainly used for:

● Indoors and in cable ducts

● Outdoors,underground

● In power supply stations

● Transformer stations

● Industrial Plants

Due to the good laying characteristic, this cable can also be installed in difficult line guideways.

The inner conducting layer between the conductor and the XLPE insulation and the firmly bonded outer conducting layer on the XLPE insulation assures a construction free of partial discharges with high operational reliabilities.

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Details

Overview

AL/XLPE/CTS/PVC Cable

NA2XSEY cables are three-core class 2 stranded aluminium medium voltage cables, they are the three-core variants of the cable NA2XSY where the 'E' in the designation refers to each of the three cores being individually screened. NA2XSEY have a cross-linked polyethylene (XLPE) insulation, copper tape screen, and a polyvinyl chloride (PVC) oversheath.The inner conducting layer between the conductor and the XLPE insulation and the firmly bonded outer conducting layer on the XLPE insulation assures a construction free of partial discharges with high operational reliabilities.

The NA2XSEY offers a low factor of dielectric loss and excellent insulation property of XLPE for high operational reliability, which makes the NA2XSEY cables are widely used in the building and construction, renewable energy, and power transmission industries where the cables can be laid directly into the ground or cable ducts.

Construction

NA2XSEY Three Core Medium Voltage Cable Descriptions：NA2XSEY Three Core MV Power Cable

Conductor：Aluminum, Class2，Circular compacted conductors

Conductor Screen: Non-metallic,semi-conducting compound

Insulation: Cross-linked polyethylene XLPE

Insulation Screen: Non-metallic,semi-conducting compound

Metallic Screen: Copper Tape

Filler: Non-hygroscopic Material

Binder Tape: Non-hygroscopic Material

Outer Sheath: Polyvinyl Chloride PVC&Polyethylene PE&LSZH

Physical Properties

Operating Temperature: up to 70℃（PVC insulation); up to 90℃(XLPE insulation)

Temperature Range: -5℃（PVC or LSZH sheath); -20℃（PE sheath)

Short Circuit Temperature(5 seconds maximum duration): 140℃-160℃（PVC insulation);250℃（XLPE insulation)

Nominal Voltages：U0/U 1.8/3kV , 6/10 kV, 12/20 kV, 18/30 kV

Technical Data

Three Core Cable（NA2XSEY)-6/10KV
No. of cores and nominal cross section	Thickness of Insulation	Thickness of sheath	Approx. Overall Diameter	Approx. Weight	Max. DC Resistance of conductor(20℃)	Current Carrying Capacity
mm2	mm	mm	mm	kg/km	Ω/km	in air(A)	in ground(A)
3Cx70	3.4	2.5	53	2750	0.443	183	174
3Cx95	3.4	2.7	58	3400	0.32	222	208
3Cx120	3.4	2.7	61	3700	0.253	255	236
3Cx150	3.4	2.8	64	4350	0.206	289	263
3Cx185	3.4	2.9	67	4700	0.164	326	295
3Cx240	3.4	3.1	74	5600	0.125	394	347
3Cx300	3.4	3.3	79	6650	0.100	450	390
3Cx400	3.4	3.5	83	7250	0.0778	522	444
Three Core Cable（NA2XSEY)-8.7/15KV
No. of cores and nominal cross section	Thickness of Insulation	Thickness of sheath	Approx. Overall Diameter	Approx. Weight	Max. DC Resistance of conductor(20℃)	Current Carrying Capacity
mm2	mm	mm	mm	kg/km	Ω/km	in air(A)	in ground(A)
3Cx70	4.5	2.7	58	3250	0.443	183	174
3Cx95	4.5	2.8	63	3900	0.32	222	208
3Cx120	4.5	2.9	66	4200	0.253	255	236
3Cx150	4.5	3	69	4700	0.206	289	263
3Cx185	4.5	3.1	73	5300	0.164	326	295
3Cx240	4.5	3.3	79	6300	0.125	394	347
3Cx300	4.5	3.4	84	7150	0.100	450	390
3Cx400	4.5	3.7	88	9700	0.0778	522	444
Three Core Cable（NA2XSEY)-12/20KV
No. of cores and nominal cross section	Thickness of Insulation	Thickness of sheath	Approx. Overall Diameter	Approx. Weight	Max. DC Resistance of conductor(20℃)	Current Carrying Capacity
mm2	mm	mm	mm	kg/km	Ω/km	in air(A)	in ground(A)
3Cx70	5.5	2.8	63	3650	0.443	183	174
3Cx95	5.5	2.9	67	4200	0.32	222	208
3Cx120	5.5	3.0	70	4700	0.253	255	236
3Cx150	5.5	3.1	72.0	5200	0.206	289	263
3Cx185	5.5	3.3	78	5800	0.164	326	295
3Cx240	5.5	3.4	83	6900	0.125	394	347
3Cx300	5.5	3.6	88	7700	0.100	450	390
3Cx400	5.5	3.8	93	8200	0.0778	522	444
Three Core Cable（NA2XSEY)-18/30KV,19/33KV
No. of cores and nominal cross section	Thickness of Insulation	Thickness of sheath	Approx. Overall Diameter	Approx. Weight	Max. DC Resistance of conductor(20℃)	Current Carrying Capacity
mm2	mm	mm	mm	kg/km	Ω/km	in air(A)	in ground(A)
3Cx70	8.0	3.2	75	4900	0.443	183	174
3Cx95	8.0	3.3	79	5500	0.32	222	208
3Cx120	8.0	3.4	82	6000	0.253	255	236
3Cx150	8.0	3.5	85.0	6500	0.206	289	263
3Cx185	8.0	3.6	89	7200	0.164	326	295
3Cx240	8.0	3.8	95	8400	0.125	394	347
3Cx300	8.0	4.0	100	9500	0.100	450	390