Home > Medium Voltage Power Cables > N2XSH 12/20 (24) kV Copper XLPE Insulated LSZH Cable
N2XSH-Cable
N2XSH-Cable

N2XSH 12/20 (24) kV Copper XLPE Insulated LSZH Cable

Application

UV-resistant medium voltage cables designed for distribution networks; suitable for connecting to generation units and for plant and process connections. The LSZH (Low Smoke Zero Halogen) outer sheath allows for installations that can be directly buried in 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
  • Filler: LSZH (Low Smoke Zero Halogen)
  • Screen: Copper wires and Copper tape
  • Outer sheath: LSZH (Low Smoke Zero Halogen)
Main Characteristics
  • Temperature Rating: -20°C to +60°C
  • Permissible operating temperature of conductor: +90°C
  • Permissible short-circuit temperature up to 5 sec: +250°C
  • Minimum Bending Radius: 15 x overall diameter
Specification

IEC 60502-2:2014: Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1,2 kV) up to 30 kV (Um=36 kV) – Part 2: Cables for rated voltages from 6 kV (Um=7,2 kV) up to 30 kV (Um=36 kV)

IEC 60332-1-2:2025: Tests on electric and optical fibre cables under fire conditions – Part 1-2: Test for vertical flame propagation for a single insulated wire or cable – Procedure for 1 kW pre-mixed flame

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Product Parameters

No. of Cores × 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.×mm2 mm mm mm mm mm kg/km ohms/km
1×50/16 8.10 5.5 4.85 1.80 26 1000 0.387
1×70/16 9.70 5.5 4.85 1.90 28 1200 0.268
1×95/16 11.4 5.5 4.85 1.90 30 1500 0.193
1×120/16 12.7 5.5 4.85 2.00 31 1800 0.153
1×150/25 14.5 5.5 4.85 2.00 33 2250 0.124
1×185/25 15.9 5.5 4.85 2.10 35 2500 0.0991
1×240/25 18.6 5.5 4.85 2.10 38 3250 0.0754
1×300/25 20.7 5.5 4.85 2.20 40 3750 0.0601
1×400/35 23.5 5.5 4.85 2.30 43 4750 0.0470
1×500/35 26.5 5.5 4.85 2.40 48 5750 0.0366
1×630/35 30.2 5.5 4.85 2.50 51 7000 0.0283

Application and case display

FAQ

What is the purpose of a metallic shield in MV and HV cables?
What is the validity period for the offer of cable?
Longitudinal Water Blocking vs. Lateral Water Blocking?
Is a flame-retardant cable also fire resistant?
How do you calculate the minimum bending radius of cables?
What is the service life of cables?
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.
What is the validity period for the offer of cable?
Typically, the offer is valid for 7 to 30 days, and the price will be adjusted according to the cost of raw materials and the exchange rate.
Longitudinal Water Blocking vs. Lateral Water Blocking?
A longitudinally water blocking cable is designed with a barrier to prevent the spread of moisture along its length. Longitudinal water blocking stops water from migrating along the cable's core, typically between the conductor strands, insulation layers, or metallic screens. Lateral water blocking ensures that water cannot penetrate the cable in the event that the sheathing is pierced or damaged. Radial water blocking prevents water from penetrating the cable's outer sheath or insulation layers, thereby stopping it from entering the cable structure entirely. Longitudinal water blocking can be achieved through various methods, including the application of water-blocking tapes and powders. These are frequently located on either side of a metallic screen and conductor. Lateral water blocking is typically accomplished by applying a layer of aluminum/polyester tape to the underside of the outer sheath.
Is a flame-retardant cable also fire resistant?
No. A flame-retardant cable is not the same as a fire-resistant cable. A flame-retardant cable is designed to restrict the spread of fire by inhibiting combustion. Fire-resistant cables, on the other hand, maintain circuit integrity and continue to function for a specified time under defined fire conditions.
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 service life of cables?
The design life of power cables is typically 20 to 30 years; however, this can vary significantly based on factors such as installation, environmental conditions, and the quality of the cable.

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