Na2xsy 18/30 Kv Kablo 6/10 Kv Kable 1X70mm Medium Voltage Aluminium Cables Al/ XLPE / Sta/ PVC 3X240 3X300 3X70 Cu 1X35 mm2

Product Description

NA2XSY 18/30 kV kablo 6/10 kV Kable 1x70mm Medium voltage cables

NA2XSY Medium voltage single core cable 6/10 kV, 12/20 kV, 18/30 kV, XLPE insulated, PVC sheathed, with Al conductors and screen of Cu conductors.

Product Description

Medium Voltage (MV) Power Cables are electric power cables designed to operate at voltages ranging from 1 kV (1000 volts) up to 35 kV. They are commonly used in various electrical distribution systems, such as substations, industrial applications, and utility grids. MV cables facilitate the transmission and distribution of electrical energy efficiently and safely.

Construction of Medium Voltage Power Cables

Conductors:

Material: Typically made of copper or aluminum, with copper offering better conductivity while aluminum is lighter and more cost-effective.

Configuration: Conductors can be single-core (one conductor) or multi-core (multiple conductors bundled together).

Insulation: 
The insulation material surrounds the conductor to prevent electrical leakage and protect against environmental factors.
Common insulation materials include:
Cross-Linked Polyethylene (XLPE): Provides high thermal resistance and excellent dielectric properties.
Polyvinyl Chloride (PVC): Offers good mechanical properties but is less heat resistant than XLPE.
EPR (Ethylene Propylene Rubber): Used for its flexibility and resistance to heat and environmental conditions.

Inner Sheath:
This layer provides additional protection to the insulation, often made from PVC or similar materials to guard against moisture and mechanical damage.

Armor:

In some cables, an additional layer of armor (steel wires or aluminum) is used to protect against mechanical damage and rodent attacks. This is especially common in direct burial applications.

Outer Sheath:
The outer layer protects the cable from environmental exposure, such as moisture and chemicals. It is typically made from PVC or other durable materials.

Types of Medium Voltage Power Cables

Single-Core Cables:

Used primarily in three-phase systems. They can be installed in different configurations (either in trefoil or flat formations).
Multi-Core Cables:

Contain multiple conductors (three or four) assembled together. They are commonly used in applications where space is limited.
Armored Cables:

These cables have an additional layer of mechanical protection, making them suitable for underground or outdoor installations.

Non-Armored Cables:

Typically used for above-ground or indoor applications where the risk of mechanical damage is lower.

Submarine Cables:

Designed for underwater applications, these cables have enhanced insulation and protection to endure the critical environmental conditions found underwater.

Sizes of Medium Voltage Power Cables

The sizes of MV cables are typically specified in terms of the conductor cross-sectional area, measured in square millimeters (mm²). Common sizes include:

10 mm² / 16 mm² / 25 mm² / 35 mm² / 50 mm² / 70 mm² / 95 mm²
120 mm² / 150 mm² / 185 mm² / 240 mm² / 300 mm² / 400 mm²
500 mm² and larger

The appropriate size of cable to use depends on factors such as the current-carrying capacity required, the length of the cable run (which affects voltage drop), and installation conditions (ambient temperature, installation type, etc.).
 

1 Core Medium Voltage Power Cable Chart Size

 

Nominal Conductor Area	No. and Diameter of Wires	Nominal Diameter of Conductor	Maximum Conductor Resistance at 20ºC	Nominal Weight per km of
(mm2)	(no./mm)	(mm)	(0/km)	Conductor (kg/km)
1	7 / 0.43	1.29	18.1	9.2
1.5	7 / 0.53	1.59	12.1	14
2.5	7 / 0.67	2.01	7.41	22.4
4	7 / 0.85	2.55	4.61	36.1
6	7 / 1.04	3.12	3.08	54
10	7 / 1.35	4.05	1.83	90.8
16	7 / 1.70	4.69	1.15	145
25	7 / 2.14	5.9	0.727	229
35	7 / 2.52	6.95	0.524	317
50	19 / 1.78	8.4	0.387	429
70	19 / 2.14	10.1	0.268	620
95	19 / 2.52	11.9	0.193	860
120	37 / 2.03	13.5	0.153	1086
150	37 / 2.25	14.9	0.124	1334
185	37 / 2.52	16.9	0.0991	1673
240	61 / 2.25	19.2	0.0754	2199
300	61 / 2.52	21.5	0.0601	2759
400	61 / 2.85	24.3	0.047	3528
500	61 / 3.20	27.3	0.0366	4448
630	127 / 2.52	32.76	0.0283	5744
800	127 / 2.85	37.05	0.0221	7346
1000	127 / 3.20	41.6	0.0176	9260

3 Core Medium Voltage Power Cable Chart Size

 

No. Cores	Conduct or Cross Sec- tion Area (mm²)	Cable Cross Section Area  (mm²)	Actual Armour Cross Section Area (mm²)	Overall Diameter (mm)	Gland Size	Cleat Size	Nominal Weight (kg/km)	Resistance of Copper Conductor (ohm/Km) at 200C
3	1.5	124.63	16	12.6	20s	6	330	12.1
3	2.5	156.07	19	14.1	20s	6	390	7.41
3	4	183.76	20	15.3	20s	6	464	4.61
3	6	216.31	23	16.6	20	7	568	3.08
3	10	298.5	39	19.5	20	8	866	1.83
3	16	366.25	45	21.6	25	10	1152	1.15
3	25	510.45	62	25.5	32	11	1800	0.727
3	35	615.44	68	28	32	11	2230	0.524
3	50	637.62	78	28.5	32	12	2490	0.387
3	70	813.92	90	32.2	40	14	3290	0.268
3	95	1074.67	128	37	40	16	4440	0.193
3	120	1281.25	141	40.4	50	16	5470	0.153
3	150	1625.15	201	45.5	50	18	6930	0.124
3	185	1946.83	220	49.8	50	20	8350	0.0991
3	240	2383.27	250	55.1	63	T9	10400	0.0754
3	300	2844.87	269	60.2	63	T10	12600	0.0601
3	400	3481.91	304	66.6	75	T11	14600	0.047

Applications of Medium Voltage Power Cables

Industrial Plants: Used for power distribution in factories and manufacturing plants.
Utilities: Connecting substations to distribution networks and covering medium voltage distribution lines.
Renewable Energy: Connecting wind turbine generators and solar power plants to the grid.
Commercial Buildings: Electrical power distribution in commercial facilities.

Standards and Compliance

Medium voltage cables are manufactured following various international and national standards, such as:

IEC 60502: International standard for power cables with extruded insulation for rated voltages from 1 kV to 30 kV.
IEEE 835: A standard for MV cable construction.
BS 6622: British standard outlining requirements for MV cables.

Medium voltage power cables play a crucial role in the efficient and safe transmission and distribution of electrical energy. Their design, materials, and construction details are tailored to handle specific electrical requirements while maintaining the necessary safety and performance standards. Proper selection of cable size and type is vital for effective electrical network installation and operation. Always adhere to applicable codes and regulations when selecting and implementing these cables.

Packaging & Shipping

Company Profile

Hongtai cable., founded in 1988, is a professional cable and wire manufacturer located in Ningjin County, Hebei Province, China.With a registered capital of 302,000,000 CNY (approx $431,142,000), factory area  86,000 sqm,Mainly engaged in the production of XLPE Insulated Power Cable, Overhead Conductor and Cable/Aerial Conductor and Cable, Building Wire, Rubber Cable, Photovoltaic Cable, Fire-resistant Cable, Control Cable. we are capable of supplying customized cable by GB, IEC, BS, ICEA, ASTM, DIN, VED and JIS srandards.

FAQ

1. Are you a manufacturer or trading company?

We are a professional manufacturer. We can control your order from the first begining to the last.
Welcome to visit us. We'll pick you up in SHIJIAZHUANG.

2. How can I get a sample to test your quality?
The samples are free for you. New clients are expected to pay for the courier cost.

3. What's your Minimum Order Quantity?
Normally 100m. However, the cable is very heavy.
You'd better order a suitable quantity to avoid the high freight.
Sea transportation is the best option.

4. Can I get a discount?
It depends on your quantity, We can make a discount and afford the freight. Pls kindly contact us for further discussion.

5. Does your company accept OEM production?
Yes, could print your company name, we even custom the quality card to promote your company.