Medium voltage XLPE Power Cable

Application

XLPE insulated power cables are divided into low voltage, medium voltage and high voltage according to the use environment. The normal operating temperature of XLPE insulated cables conductors are 90°C. They are usually laid indoors, outdoors, in pipelines, cable trenches and loose soil. They can withstand a certain laying traction, but they cannot withstand external mechanical forces. It is generally applied to the fields including power, construction, mines, metallurgy, petrochemical indusry and communication in complete replace of oil immersed paper insulated power cable and in partial replace of PVC insulated power cable.

Some common applications of Yjv XLPE insulated power cables include:

Underground power transmission and distribution: XLPE insulated power cables are widely used for the underground transmission and distribution of electrical power. They are capable of withstanding high voltage and high current levels, and can be installed in a variety of environments, including urban areas, industrial facilities, and remote locations.

Industrial applications: XLPE insulated power cables are commonly used in industrial applications, such as mining, oil and gas, and manufacturing. They are suitable for use in harsh environments, where they may be exposed to high temperatures, chemicals, and abrasion.

Renewable energy projects: XLPE insulated power cables are used in renewable energy projects, such as wind and solar power installations, where they are used to transmit power from the generation source to the grid.

Marine and offshore applications: XLPE insulated power cables are commonly used in marine and offshore applications, such as oil rigs, ships, and submarines. They are designed to withstand harsh conditions, including saltwater corrosion, extreme temperatures, and high pressures.

Construction

• Conductors: Solid or stranded aluminum conductors, stranded copper conductors, class 2 copper or aluminum conductors to BS EN 60228 (formerly BS 6360), compacted or segmented strands.
• Cross-sectional area: usually 35mm2 to 630mm2 (medium voltage XLPE power cables), 150-800mm2 (high voltage XLPE power cables)
• Insulation: XLPE (often used for medium voltage cables) or EPR (often used in marine or marine applications due to its flexibility).
• Metal Shield: Concentric copper wire shield, aluminum foil laminate, extruded lead alloy sheath.
• Armoring: Aluminum tape armoring is mainly used for single-core cables, and galvanized steel wire armoring is mainly used for multi-core cables.
• Outer Sheath: Cable sheath materials include PVC, EPR, LSZH, HDPE (High Density Polyethylene) (specify when ordering, other options are available) to meet different environmental requirements.
• Short circuit temperature: +250 °C, operating temperature: -30 °C to 90 °C

Standards

The products are mainly complying with IEC 60502 standard, also can be produced according to OEM requirements and other standards, such as BS standard, DIN standard, ASTM standard, etc.

Voltage grade is up to 35kv, cross-section area can be up to 400 sqmm (copper or alumimum conductor). Conductor long-time operating temperature is 90℃. In short circuit, conductor highest temperature should be not more than 250℃

Name and Type

Type	Type	Name
Cu Core	Al Core
YJV(YJY)	YJLV(YJLY)	XLPE Insulated,PVC(PE) Sheathed Power Cable
YJV22(YJV23)	YJLV22(YJLY23)	XLPE Insulated,Steel Tape Armoured,PVC(PE) Sheathed Power Cable
YJV32(YJLV33)	YJLV32(YJLY33)	XLPE Insulated,Fine Steel Wire Armoured,PVC(PE) Sheathed Power Cable
YJV42(YJLV43)	YJLV42(YJLY43)	XLPE Insulated,Thick Steel Wire Armoured,PVC(PE) Sheathed Power Cable
ZR-YJV(ZR-YJY)	ZR-YJLV(ZR-YJLY)	XLPE Insulated,PVC(PE) Sheathed Flame-retardant Power Cable
ZR-YJV22(ZR-YJY23)	ZR-YJLV22(ZR-YJLY23)	XLPE Insulated,Steel Tape Armoured,PVC(PE) Sheathed Flame-retardant Power Cable
ZR-YJV32(ZR-YJY33)	ZR-YJLV32(ZR-YJLY33)	XLPE Insulated,Fine Steel Wire Armoured,PVC(PE) Sheathed Flame-retardant Power Cable
ZR-YJV42(ZR-YJY43)	ZR-YJLV42(ZR-YJLY43)	XLPE Insulated,Thick Steel Wire Armoured,PVC(PE) Sheathed Flame-retardant Power Cable

Specification

Cross-section area of neutral conductor in 3+1 cores,4+1 cores and 3+2 cores should conform to spectification of following table:

Nominal Cross-section(mm2)	Main Cores	2.5	4	6	10	16	25	35	50
	Neutral Core	1.5	2.5	4	6	10	16	16	25

Nominal Cross-section(mm2)	Main Cores	70	95	120	150	185	240	300	400
	Neutral Core	35	50	70	70	95	120	150	185

A.D.C.Resistance:Conductor resistance of finished cable per kilometer at 20^oC is not more than the following

Nominal Crosss-section(mm2)	1.5	2.5	4	6	10	16	25
Cu Core(Ω/km)	12.1	7.41	4.61	3.08	1.83	1.15	0.727
Al Core(Ω/km)	18.1	12.1	7.41	4.61	3.08	1.91	1.20

Nominal Crosss-section(mm2)	35	50	70	95	120	150	185
Cu Core(Ω/km)	0.524	0.387	0.268	0.193	0.153	0.124	0.0991
Al Core(Ω/km)	0.868	0.641	0.443	0.320	0.253	0.206	0.164
Nominal Crosss-section(mm2)	240	300	400	500	630	800	1000
Cu Core(Ω/km)	0.0754	0.0601	0.0470	0.0366	0.0283	0.0221	0.0176
Al Core(Ω/km)	0.125	0.100	0.0778	0.0605	0.0469	0.0367	0.0291

Nominal Cross-	Over-	Nominal Thickness of Insulation	Size of Armour(mm)			Approx.Overrall Diameter& Weight
Section	Diameter	(mm)	Steel	Fine Steel Wire	Thick Steel Wire	YJV		YJY		YJV22		YJV23		YJV32		Recommending Current Rating(A)
(mm2)	(mm)		Tape
			Layer x Thickness	Dia.	Dia.	Over-	Weight	Over-	Weight	Over-	Weight	Over-	Weight	Over-	Weight	Weight	In	In Air
				(mm)	(mm)	Dia.	(kg/km)	Dia.	(kg/km)	Dia.	(kg/km)	Dia.	(kg/km)	Dia.	(kg/km)	(kg/km)	Ground
						(mm)		(mm)		(mm)		(mm)		(mm)
1.5	1.38	0.7	2x0.3	1.6	4	5.7	44	5.7	36	14.9	334	14.9	302	16.9	594	1318	45	32
2.5	1.78	0.7	2x0.3	1.6	4	6.1	56	6.1	48	14.9	341	14.9	309	16.9	601	1325	59	42
4	2.25	0.7	2x0.3	1.6	4	6.5	73	6.5	64	14.9	354	14.9	322	16.9	614	1337	77	56
6	2.76	0.7	2x0.3	1.6	4	7	95	7	85	14.9	365	14.9	333	16.9	625	1348	97	70
10	3.57	0.7	2x0.3	1.6	4	7.9	138	7.9	126	14.9	395	14.9	363	16.9	655	1379	130	97
16	4.5	0.7	2x0.3	1.6	4	8.8	198	8.8	184	15	444	15	411	17	702	1552	170	125
25	6.3	0.9	2x0.3	1.6	4	11	309	11	290	15.4	523	15.4	490	17.4	778	1788	220	165
35	7.3	0.9	2x0.3	1.6	4	12	409	12	389	16.4	641	16.4	605	18.4	919	2002	265	200
50	8.3	1	2x0.3	1.6	4	13.2	560	13.2	538	17.6	813	17.6	775	19.6	1111	2269	32	245
70	10	1.1	2x0.3	1.6	4	15.1	764	15.1	738	19.5	1050	19.5	1007	21.5	1394	2604	295	305
95	11.6	1.1	2x0.3	1.6	4	16.9	1016	16.9	985	21.1	1323	21.1	1276	23.1	1699	2968	475	375
120	13	1.2	2x0.3	1.6	4	18.5	1265	18.5	1230	22.7	1598	22.7	1547	24.7	1991	3449	545	435

Delivery

The packaging style of wires and cables including coil packaging, reel packaging, wooden drum packaging and iron-wood drum packaging, usually insulated power cables used wooden drum packaging, iron-wood pallet packaging and other packaging style. The packaging style is mainly based on the length and weight of the cables , we customize the satisfactory packaging method based on customers’ needs.