Home > Medium Voltage Power Cables > N2XS(F)2Y 12/20(24)kV Copper XLPE insulated MDPE cable

N2XS(F)2Y 12/20(24)kV Copper XLPE insulated MDPE cable

Application

Water-blocking medium voltage power cables are designed for distribution networks and generation units, and are suitable for external installation, including direct burial in the ground and in cable ducts.

Construction

Conductor: Class 2 Stranded Copper
Conductor Screen: Semi-conductive material
Insulation: XLPE (Cross-Linked Polyethylene)
Insulation Screen: Semi-conductive material
Longitudinal Waterblocking: Semi-conductive swellable tape
Screen: Copper wires and copper tape
Longitudinal Waterblocking: Swellable Tapes
Outer Sheath: MDPE (Medium Density Polyethylene)

Characteristics

Permissible Conductor Operating Temperature: +90°C
Permissible Short Circuit Temperature up to 5 sec: 250°C
Minimum Bending Radius:15 x overall diameter

Specification

IEC 60502-2 Power Cables with Extruded Insulation and their accessories for Rated Voltages from 1kV (Um=1.2kV) up to 30KV (Um=36kV)

Part 2: Cables for Rated Voltages of 6kV (Um=7.2kV) and 30kV (Um=36kV)

IEC 60228 specifies the nominal cross-sectional areas, in the range 0,5 mm²to 3500 mm²for conductors in electric power cables and cords of a wide range of types.

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No.of cores x Nominal cross sectional area	Nominal conductor diameter	Nominal Insulation Thickness	Minimum Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx.Weight	D.C.Resistance of Conductor at 20℃
No. x mm²	mm	mm	mm	mm	mm	Kg/km	ohms/km
1×50/16	8.1	5.5	4.85	1.8	26	1000	0.387
1×70/16	9.7	5.5	4.85	1.9	28	1200	0.268
1×95/16	11.4	5.5	4.85	1.9	30	1500	0.193
1×120/16	12.7	5.5	4.85	2	31	1800	0.153
1×150/25	14.5	5.5	4.85	2	33	2250	0.124
1×185/25	15.9	5.5	4.85	2.1	35	2500	0.0991
1×240/25	18.6	5.5	4.85	2.1	38	3250	0.0754
1×300/25	20.7	5.5	4.85	2.2	40	3750	0.0601
1×400/35	23.5	5.5	4.85	2.3	43	4750	0.047
1×500/35	26.5	5.5	4.85	2.4	48	5750	0.0366
1×630/35	30.2	5.5	4.85	2.5	51	7000	0.0283

Application and case display

FAQ

How Do Water-Blocking Cables Work?

How do you calculate the minimum bending radius of cables?

What is the length tolerance for cables?

What is the minimum order quantity for the product?

What is the operating temperature of the cable?

What is the purpose of a metallic shield in MV and HV cables?

How Do Water-Blocking Cables Work?

Water-blocking cables are essential for ensuring reliable operation in environments with high levels of moisture or frequent water contact. These cables employ water-blocking techniques to effectively prevent water ingress, protecting them from damage and prolonging their lifespan.

How do you calculate the minimum bending radius of cables?

The bend radius refers to the curved shape in which an electrical cable can be bent or curved without sustaining damage. To determine the minimum bend radius for cables, apply the following formula: Minimum Bend Radius = Cable Outer Diameter×Cable Multiplier. For example, if the outer diameter of a cable is 20mm, its minimum bending radius would be 20mm×6 = 120mm. Conversely, if an armored cable has an outer diameter of 30mm, its minimum bending radius would be 30mm×12 = 360mm.

What is the length tolerance for cables?

The tolerance for the power cable is 0 to +0.5%. For the bare conductor, the tolerance is ±5%.

What is the minimum order quantity for the product?

The minimum order quantity for low and medium voltage cables is 200 meters, whereas for high voltage cables, it is 2000 meters. Should the order quantity fall below the MOQ, however, if the factory has stock, we can still supply it.

What is the operating temperature of the cable?

The operating temperature of a cable is determined by the insulation and sheathing material. PVC has a range of -15°C to 70°C, XLPE can reach up to 90°C, while silicone rubber can handle temperatures from -60°C to 180°C.

What is the purpose of a metallic shield in MV and HV cables?

Medium and high voltage power cables, typically those in circuits exceeding 2kV, usually feature a shield layer made of copper or aluminum tape. Similar to their use in low voltage cables, metallic wires and tapes are employed to prevent electromagnetic interference. These shields effectively neutralize or significantly diminish the field currents surrounding the conductor or core. The capacitive and inductive charging currents induced under normal operating conditions are subsequently grounded by the metallic screen.

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Email: info@starsunelectric.com

Address: No. 1207, Building B, No. 96 Kangning Street, Zhengdong New District, Zhengzhou, China

N2XS(F)2Y 12/20(24)kV Copper XLPE insulated MDPE cable

Product Parameters

Application and case display

FAQ

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