High-Performance XLPE Insulated Overhead Cable

XLPE insulated overhead cables

XLPE insulated overhead cables (models: JKYJ-10kV, JKLYJ/Q-35kV) are specially designed for 0.6/1kV to 35kV AC transmission and distribution systems. They adopt a three-layer co-extrusion chemical cross-linking process (conductor shielding layer + XLPE insulation layer + insulation shielding layer) to meet the stringent requirements of medium and high voltage power grids for insulation strength, electric tracking resistance and partial discharge resistance. The product covers 10kV and 35kV voltage levels, with a conductor cross-section of up to 630mm², and is suitable for high-load scenarios such as long-distance transmission and substation interconnection.

International standard certification:

Voltage classification certification:

Low voltage (0.6/1kV): GB 12527-90, IEC 60502-1;

Medium and high voltage (10kV-35kV): IEC 60502-2, IEEE 404, GB/T 12706.2;

High-Performance XLPE Insulated Overhead Cable | Reliable, High-Temperature Resistant Power Cable

Product application scenarios:

Main power grid: 35kV cables are used for urban trunk lines and cross-regional power corridors, which can replace traditional steel-core aluminum stranded wires and reduce corona losses;

Industrial high-voltage power supply: 10kV high-voltage direct supply systems in chemical parks, steel plants, etc., which can withstand frequent overload shocks;

New energy grid connection: 35kV collection lines in wind farms and output lines of photovoltaic booster stations, which are resistant to ultraviolet and salt spray corrosion;

Cross-border power transmission: Long-distance overhead laying in tropical regions such as Southeast Asia and Africa, with excellent resistance to moisture and heat aging.

High-Performance XLPE Insulated Overhead Cable | Reliable, High-Temperature Resistant Power Cable

Advantages:

Insulation layer reliability:

Ultra-clean XLPE material, impurity content <0.01%, power frequency withstand voltage test (30.5kV/5min without breakdown);

Smooth transition of semi-conductive shielding layer, uniform electric field distribution, reducing the risk of partial discharge;

Anti-environmental stress:

Weather-resistant outer sheath (optional HDPE or special anti-UV formula), CIGRE TB 322 standard wet heat aging test life >50 years;

Anti-creep design, long-term operation sag <2%;

Energy saving and economy:

Conductor compacting process, DC resistance reduced by 3%, annual power loss reduced by 5%-8%;

The allowable current carrying capacity is 40% higher than that of PVC cables of the same specification, saving line investment costs.

Technical Data

Number of conductors	Conductor Diameter	Nominal Area	Insulation Thickness	Cable Outer Diameter	Cable Weight				Cable Breaking Force			Maximum Resistance of Conductor （20℃）				Current Carrying Capacity(A)
	(mm)	(mm2)	(mm)	(mm)	(kg/km)				(N)			Ω/km				Copper Core			Aluminum Core、Aluminum alloy core
					JKV	JKY JKYJ	JKLV JKLHV	JKLY JKLYJ JKLHY JKLHYJ	Hard copper	Aluminum	Aluminum Alloy	Hard copper	Soft copper	Aluminum	Aluminum Alloy	PVC	PE	XLPE	PVC	PE	XLPE
Single core	3.8	10	1	5.8	114	108	51	45	3471	1650	2514	1.906	1.83	3.08	2.574	65	65	85	50	50	65
	4.8	16	1.2	7.2	181	172	79	70	5486	2517	4022	1.198	1.15	1.91	2.217	89	90	122	69	70	95
	6.2	25	1.2	8.4	260	251	109	97	8465	3763	6284	0.749	0.727	1.2	1.393	120	124	166	93	97	128
	7.2	35	1.4	9.8	377	352	151	136	11731	5177	8800	0.54	0.524	0.868	1.007	148	152	204	115	118	158
	8.5	50	1.4	11.1	485	469	194	176	16502	7011	12569	0.399	0.387	0.641	0.744	182	188	252	141	146	196
	10.2	70	1.4	12.8	668	650	267	237	23461	10354	17596	0.276	0.268	0.443	0.514	231	239	320	180	210	249
	11.8	95	1.6	14.9	941	917	368	331	31759	13727	23880	0.199	0.193	0.32	0.371	289	299	400	224	232	310
	13.2	120	1.6	16.2	1174	1149	436	408	39911	17339	30164	0.158	0.153	0.253	0.294	334	348	467	260	271	362
	14.8	150	1.8	17.7	1477	1450	549	513	49505	21033	37706	0.128	0.124	0.206	0.239	385	399	633	298	310	412
	16.4	185	2	20.2	1768	1748	660	616	61846	26732	46503	0.1021	0.0991	0.164	0.19	448	466	622	247	362	483
	18.6	240	2	22.8	2305	2255	854	798	79823	34679	60329	0.0777	0.0754	0.125	0.145	535	558	746	414	432	578
	20.6	300	2.4	24.4	2946	2886	1084	1016	99898	43400	75451	0.0619	0.0601	0.1	0.11	615	630	865	480	490	630
Two cores	3.8	10	1	11.6	228	216	102	89	6890	3140	5028	1.906	1.83	3.08	2.574	60	60	78	46	46	60
	4.8	16	1.2	14.4	362	343	158	140	10972	5024	8044	1.198	1.15	1.91	2.217	82	83	112	63	64	87
	6.2	25	1.2	16.8	521	500	217	195	16930	7524	12568	0.749	0.727	1.2	1.393	110	114	153	86	89	118
	7.2	35	1.4	19.6	733	704	302	272	23462	10354	17600	0.54	0.524	0.868	1.007	136	140	188	106	109	145
	8.5	50	1.4	22.2	969	937	387	352	33004	14202	25138	0.399	0.387	0.641	0.744	167	173	232	130	134	180
	10.2	70	1.4	25.2	1336	1300	513	483	46922	20708	35192	0.276	0.268	0.443	0.514	213	220	194	166	193	229
	11.8	95	1.6	29.4	1882	1835	715	662	63518	27454	47760	0.199	0.193	0.32	0.371	266	275	368	206	213	285
	13.2	120	1.6	32.2	2348	2297	872	815	79822	34678	60328	0.158	0.153	0.253	0.294	307	320	430	239	249	333
	14.8	150	1.8	36.2	2954	2889	1098	1025	99010	42066	75412	0.128	0.124	0.206	0.239	354	367	490	274	285	380
	16.4	185	2	40	3536	3456	1320	1231	123692	53466	93006	0.1021	0.0991	0.164	0.19	412	429	572	319	333	444
	18.6	240	2	45.4	4609	4510	1709	1597	159646	69356	120658	0.0777	0.0754	0.125	0.145	492	513	686	381	397	532
	20.6	300	2.4	50.6	5891	5771	2168	2032	199576	86698	150822	0.0619	0.0601	0.1	0.11	566	580	730	442	451	580
Three cores	3.8	10	1	12.5			153	134		4950				3.08	2.574				41	41	53
	4.8	16	1.2	15.5			237	209		7536				1.91	2.217				57	57	78
	6.2	25	1.2	18.1			325	292		11286				1.2	1.393				76	80	105
	7.2	35	1.4	21.1			453	408		15531				0.868	1.007				94	97	130
	8.5	50	1.4	23.9			580	528		21033				0.641	0.744				116	120	161
	10.2	70	1.4	27.1			769	710		31062				0.443	0.514				148	172	204
	11.8	95	1.6	31.7			1072	993		41181				0.32	0.371				184	190	254
	13.2	120	1.6	34.7			1308	1222		52017				0.253	0.294				213	222	297
	14.8	150	1.8	39			1647	1538		63099				0.206	0.239				244	254	339
	16.4	185	2	43.1			1981	1846		81960				0.164	0.19				285	297	396
	18.6	240	2	48.9			2563	2395		104037				0.125	0.145				339	354	474
	20.6	300	2.4	54.5			3252	3047		130047				0.1	0.11				394	402	517
Four cores	3.8	10	1	13	456	434	204	179	13384	6600	10056	1.906	1.83	3.08	2.574	53	53	70	41	41	53
	4.8	16	1.2	16.2	721	687	316	280	21944	10048	16088	1.198	1.15	1.91	2.217	73	74	100	57	57	78
	6.2	25	1.2	19.6	1040	1001	433	390	33860	15048	25136	0.749	0.727	1.2	1.393	98	102	136	76	80	105
	7.2	35	1.4	22.7	1464	1410	604	546	46924	20708	35200	0.54	0.524	0.868	1.007	121	125	167	94	97	130
	8.5	50	1.4	25.9	1936	1876	773	706	66008	28044	50276	0.399	0.387	0.641	0.744	149	154	207	116	120	161
	10.2	70	1.4	30	2669	2601	1025	948	93844	41416	70384	0.276	0.268	0.443	0.514	189	196	262	148	172	204
	11.8	95	1.6	34.6	3761	3672	1429	1327	127036	54908	95520	0.199	0.193	0.32	0.371	237	245	328	184	190	254
	13.2	120	1.6	38	4692	4597	1744	1632	159644	69356	120656	0.158	0.153	0.253	0.294	274	285	383	213	222	297
	14.8	150	1.8	42.6	5903	5782	2197	2054	198020	84132	150824	0.128	0.124	0.206	0.239	316	327	437	244	254	339
	16.4	185	2	47.2	7065	6916	2641	2466	247684	106928	186012	0.1021	0.0991	0.164	0.19	367	382	505	285	297	396
	18.6	240	2	52.6	9210	9026	3418	3199	319292	138716	241316	0.0777	0.0754	0.125	0.145	439	458	612	339	354	474
	20.6	300	2.4	58.9	11770	11549	4335	4070	399152	173396	301644	0.0619	0.0601	0.1	0.11	504	517	710	394	402	517

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Only some product parameters are displayed. For more product information, please contact us.

The above parameters are for reference only.

Cable Structure

High-Performance XLPE Insulated Overhead Cable

Features

Product Features

Excellent electrical properties: XLPE has high dielectric strength and low dielectric loss, ensuring efficient transmission.

Excellent heat resistance: The long-term working temperature can reach 90°C, and it can withstand higher temperatures during short circuits.

Excellent mechanical properties: High tensile strength and wear resistance, suitable for overhead laying, reducing the risk of line breakage.

Strong weather resistance: Excellent UV resistance and aging resistance, suitable for various climatic conditions.

Environmental protection characteristics: It does not contain halogens, does not produce toxic gases when burned, and meets environmental protection requirements.

Usage Characteristics

Experimental performance data:

Insulation resistance test: Ensure the electrical insulation performance of the cable.

Withstand voltage test: Verify the stability of the cable under high voltage.

Tensile strength test: Evaluate the mechanical strength of the cable to ensure reliability when laying overhead.

High and low temperature resistance test: Ensure the stable performance of the cable under extreme temperature conditions.

UV aging test: Evaluate the durability of the cable under long-term exposure to UV rays.

COMMON QUESTIONS

SHENXING Cable Service FAQs

Want to learn more? Check out our electrical cable most frequently asked questions.

What are the application scenarios of 10kV cross-linked polyethylene insulated overhead cable?

10kV cross-linked polyethylene insulated overhead cable is widely used in overhead power transmission systems, especially in power distribution networks, high-voltage power infrastructure, solar photovoltaic power generation systems, street lighting and traffic signal systems in urban and rural areas. It can withstand higher voltages and has excellent weather resistance and long-term stability to ensure the safe operation of the power system.

What is the maximum operating temperature of 10kV cross-linked polyethylene insulated overhead cable?

For cross-linked polyethylene insulated overhead cable with a rated voltage of 10kV, the maximum operating temperature is 75°C (high-density polyethylene insulated cable), and for cross-linked polyethylene (XLPE) insulated cable, the maximum operating temperature is 90°C. This enables it to operate stably in high temperature environments and adapt to various power transmission needs.

Can this cable be used in extreme weather conditions?

Yes, 10kV cross-linked polyethylene insulated overhead cable has good weather resistance and adapts to extreme temperature and humidity conditions. Its operating temperature range is **-20°C to +75°C**, so it can maintain efficient power transmission capabilities even in cold or hot environments. In particular, cross-linked polyethylene (XLPE) insulation provides excellent resistance to UV, oxidation and chemical corrosion.

What are the electrical properties of 10kV cross-linked polyethylene insulated overhead cables?

10kV cross-linked polyethylene insulated overhead cables have excellent electrical properties and can withstand high voltage loads. After a 1-minute voltage test, cables rated at 10kV are subjected to an AC voltage test of 18kV (12kV for light cables) to ensure that the cables have sufficient insulation capacity under high voltage. In addition, the cable insulation layer has been precisely designed to have excellent electrical isolation performance, ensuring that there will be no leakage or short circuit during long-term use.

How to maintain and repair 10kV cross-linked polyethylene insulated overhead cables?

10kV cross-linked polyethylene insulated overhead cables require regular inspection and maintenance. Here are some basic maintenance points:

Regularly check the appearance of the cable to ensure that there is no damage, cracks or wear.

Perform electrical tests regularly to detect whether the insulation performance of the cable is normal.

Clean the dust and debris on the surface of the cable to avoid accumulation of dirt and damage to the cable surface.

Ensure that the cable laying area is kept dry to prevent the humid environment from affecting the long-term stability of the cable.

If the cable is partially damaged, repair or replace it in time to avoid the fault from expanding.