Description

Technical Parameters

Certification

3.8/6.6kV Single Core Copper MV Power Cable

3.8/6.6kV single core copper MV power cable is made of stranded compacted circular copper, which has excellent conductivity, making it the preferred material for high-performance electrical cables. The stranded and compacted structure increases flexibility and reduces the overall diameter of the conductor, improving current-carrying capacity while maintaining mechanical strength. The compacted design also ensures better contact between strands, reducing energy loss and improving overall efficiency during power transmission.

Min. installation temperature: 0°C

Operating temperature: -25°C to +90°C

Emergency operating temperature: 105°C

Max. Short Circuit Temperature: 250°C

Application

Copper 3.8/6.6kV MV power cable are suitable for large infrastructure power distribution, such as factory power distribution, underground system power distribution, and transmit power from substations to various users. MV power cable are moisture-proof and corrosion-resistant, which can ensure long-term stable operation and avoid failures caused by the external environment.

Min. installation temperature: 0°C

Operating temperature: -25°C to +90°C

Emergency operating temperature: 105°C

(max. operation of 36hrs, at 3 periods for 12 consecutive months use)

Max. Short Circuit Temperature: 250°C

Feature

• Nominal Voltage: 3.8/6.6 (7.2) kV

• Conductor: Stranded Compacted Circular Copper conductor as per AS/NZS 1125

• Conductor Screen: Extruded Semi-conductive compound

• Insulation: XLPE

• Insulation Screen: Extruded Strippable Semi-conductive compound

• Longitudinal Water blocking : Water blocking tape above and below copper screen (Optional)

• Metallic Insulation Screen: Copper Wire Screen + helically applied copper tape (E/F current capacity – Based on requirement)

• Metallic Sheath: Lead Alloy (optional)

• Outer Sheath: Extruded Polyvinyl Chloride, Colour: Black

• Termite Protection: Polyamide (Nylon -12) (optional)

(Alternative Sheath: PVC+HDPE Composite Sheath or PVC + Nylon + HDPE

(composite sheath with anti-termite properties) or LSZH Outer sheath and parameters will change accordingly)

Certification

In Australia and throughout Oceania, many project tenders explicitly require compliance with local standards. Our AS/NZS1429.1 MV power cable has been SAA. Certification Numbers: SAA242046 and SAA250307. Certified cables meet local standards, providing a distinct advantage in competitive bidding processes. They also adhere to the technical specifications and compliance requirements set forth in tender documents, ensuring bids are not rejected due to certification deficiencies. SAA certification is particularly crucial in large-scale government and infrastructure projects.

Package

sta power cable package

Factory

Greater Wire manufacturer uses fully automated production. The accuracy of automated production equipment can reach 0.002mm, and all products are 100% inspected and digitally marked. The company has a super large warehouse, with a daily production of 300000 meters, scalability, and timely delivery to protect your business. we have professional sales team. Our photovoltaic cables are supplied to many countries and regions around the world, such as Lebanon, Iraq, Myanmar, the Philippines, Germany, the United States, Sweden, South Africa, and other main countries and regions.

Case

Company cases

Partner

greater wire Partner

FAQ

Q:What are the main application scenarios of medium-voltage cables?

A: Medium-voltage cables are widely used in industries, power infrastructure, urban distribution networks, wind farms, photovoltaic power stations and other scenarios that require reliable power transmission.

Q: What is the difference between medium-voltage cables and high-voltage cables?

A: The voltage level of MV cables is lower than that of high-voltage cables. High-voltage cables are used for power transmission above 35kV, while medium-voltage cables are used for power distribution systems with lower voltages.

Q:What is the difference between aluminum-core medium-voltage cables and copper-core medium-voltage cables?

A:Aluminum-core cables are lighter and less expensive, but their conductivity is slightly inferior to that of copper-core cables. Copper-core cables have high conductivity and are suitable for applications with high current density requirements.

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MV105 cable

MV105 cable specification

No. of Cores	Core Cross sectional Area	Nominal Diameter
No. of Cores	Core Cross sectional Area	Under metallic screen	Under metallic screen	Overall
No.	mm2	mm	mm	mm
1	16	12.9	14.8	19.0
1	25	14.1	16.0	20.0
1	35	15.1	17.0	21.0
1	50	16.2	18.1	22.0
1	70	17.9	19.8	24.0
1	95	19.4	21.3	25.0
1	120	21	22.9	27.0
1	150	22.4	24.3	28.0
1	185	24.1	26.0	30.0
1	240	26.6	28.5	33.0
1	300	29	30.9	35.0
1	400	32.2	34.1	39.0
1	500	36	37.9	43.0
1	630	39.6	41.5	47.0
1	800	43.3	45.2	50.0
1	1000	47.6	49.5	55.0

• Above mentioned parameters are based on 3k A/sec earth fault current capacity of copper screen

ELECTRICAL CHARACTERISTICS:

No.of Cores	Core Cross sectional Area	Max. DC Resistance at 20˚C	Max. AC Resistance at 90˚C	Approx. Capacitance	Approx. Inductance	Approx. Reactance	Continuous Current Rating
							In ground at 20℃		In Duct at 20℃		In air at 30℃
							Flat	Trefoil	Flat	Trefoil	Flat	Trefoil
No.	mm2	Ω/km	Ω/km	µF/km	mH/km	Ω/km	Amps
1	16	1.15	1.466	0.22	0.475	0.149	113	109	104	103	128	125
1	25	0.727	0.927	0.25	0.442	0.139	144	140	133	132	167	163
1	35	0.524	0.668	0.28	0.421	0.132	172	166	159	157	203	198
1	50	0.387	0.494	0.31	0.401	0.126	203	196	188	186	243	238
1	70	0.268	0.342	0.36	0.369	0.116	246	239	229	227	303	296
1	95	0.193	0.247	0.4	0.353	0.111	293	285	274	271	369	361
1	120	0.153	0.196	0.45	0.336	0.106	332	323	311	308	426	417
1	150	0.124	0.159	0.49	0.326	0.102	366	361	347	343	481	473
1	185	0.0991	0.128	0.54	0.316	0.099	410	406	391	387	550	543
1	240	0.0754	0.098	0.58	0.305	0.096	470	469	453	447	647	641
1	300	0.0601	0.079	0.59	0.299	0.094	524	526	510	504	739	735
1	400	0.047	0.063	0.62	0.291	0.091	572	590	571	564	837	845
1	500	0.0366	0.051	0.66	0.284	0.089	660	655	640	635	970	960
1	630	0.0283	0.042	0.74	0.276	0.087	735	730	715	710	1110	1100
1	800	0.0221	0.035	0.82	0.269	0.084	770	820	800	790	1260	1250
1	1000	0.0176	0.031	0.91	0.262	0.082	825	885	865	855	1420	1410

*: Current Ratings are based on IEC 60502-2 & IEC 60287, Max. Conductor Temperature at 90℃, Ambient temperature at 30℃ in Air / at 20℃ in Ground, Thermal resistivity of Soil 1.5 k.m/W & for earthenware ducts 1.2k.m/W and Depth of Laying 0.8m.

Current rating de-rating factors for other than 30℃ ambient air temperature.

20	25	35	40	45	50	55	60
1.08	1.04	0.96	0.91	0.87	0.82	0.76	0.71

Current rating de-rating factors for other than 20℃ ground temperature.

10	15	25	30	35	40	45	50
1.07	1.04	0.96	0.93	0.89	0.85	0.80	0.76

No.of Cores	Core Cross sectional Area	Max. pulling tension on conductor	Charging Current per phase	Zero sequence impedance	Electric Stress at Conductor Screen	Short circuit rating of Phase conductor
No.	mm²	kN	Amps/Km	Ohms/Km	kV/mm	kA, I sec
1	16	1.12	0.26	2.63	2.1	2.3
1	25	1.75	0.3	2.09	2.0	3.6
1	35	2.45	0.33	1.83	2.0	5.0
1	50	3.5	0.37	1.65	1.9	7.2
1	70	4.9	0.43	1.50	1.9	10.0
1	95	6.65	0.48	1.41	1.8	13.6
1	120	8.4	0.54	1.36	1.8	17.1
1	150	10.5	0.58	1.32	1.8	21.4
1	185	12.95	0.64	1.29	1.7	26.4
1	240	16.8	0.69	1.26	1.7	34.3
1	300	21	0.7	1.24	1.5	42.8
1	400	28	0.74	1.22	1.4	56.9
1	500	35	0.79	1.21	1.3	71.5
1	630	44.1	0.88	1.20	1.3	90.2
1	800	56	0.98	1.19	1.3	114
1	1000	70	1.09	1.19	1.3	143

MV Cable

MV cable 02