Home > Medium Voltage Power Cables > NA2XSRY 6/10 (12) kV Aluminum XLPE insulated Copper wire shielded Aluminum wire armored Cable

NA2XSRY 6/10 (12) kV Aluminum XLPE insulated Copper wire shielded Aluminum wire armored Cable

Application

Medium voltage NA2XSRY cables for distribution networks. They are suitable for laying Indoor, tunnel, cable trench, shaft or buried laying. The cable can withstand mechanical external forces and a certain tensile force, it widely used in transformer stations, electric power plants and industrial plants.

Construction

Conductor: Aluminum, class 2, circular compacted conductors
Conductor screen: Non-metallic, semi-conducting compound
Insulation: Cross-linked polyethylene (XLPE)
Insulation screen: Non-metallic, semi-conducting compound
Metallic screen: Copper wire
Inner sheath: Polyvinyl chloride (PVC)
Armour: Aluminum wire
Outer sheath: Polyvinyl chloride (PVC)

Main Characteristics

Good electrical and mechanical properties.
Minimal dielectric loss, high insulation resistance.

Specification

IEC 60228 Conductors of Insulated Cables.
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) up to 30kV (Um=36kV).

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No.of Cores and Nominal Cross Section	Nominal Insulation Thickness	Nominal Aluminum Wire Diameter	Nominal Sheath Thickness	Approx. Overall Diameter	Approx.Weight		Max.D.C.Resistance of Conductor at 20℃
No.of Cores and Nominal Cross Section	Nominal Insulation Thickness	Nominal Aluminum Wire Diameter	Nominal Sheath Thickness	Approx. Overall Diameter	Cu	Al	Cu	Al
mm²	mm	mm	mm	mm	kg/km	kg/km	Ω/km	Ω/km
1×25	3.4	1.6	1.8	27.3	1100	947	0.727	1.2
1×35	3.4	1.6	1.8	28.3	1227	1015	0.524	0.868
1×50	3.4	1.6	1.9	29.6	1392	1106	0.387	0.641
1×70	3.4	1.6	1.9	31.3	1645	1231	0.268	0.443
1×95	3.4	1.6	2.0	33.3	1963	1389	0.193	0.32
1×120	3.4	2.0	2.0	35.3	2321	1595	0.153	0.253
1×150	3.4	2.0	2.1	37.0	2732	1828	0.124	0.206
1×185	3.4	2.0	2.1	38.7	3135	1997	0.0991	0.164
1×240	3.4	2.0	2.2	41.2	3754	2279	0.0754	0.125
1×300	3.4	2.0	2.3	43.6	4407	2561	0.0601	0.100
1×400	3.4	2.5	2.4	47.7	5570	3193	0.047	0.0778
1×500	3.4	2.5	2.5	51.4	6694	3680	0.0366	0.0605
1×630	3.4	2.5	2.7	55.7	8244	4332	0.0283	0.0469

Application and case display

FAQ

What temperature can high-temperature resistant cables reach, and what are their application scenarios?

What is the length tolerance for cables?

How long is the validity period of cold shrink cable accessories?

Flame Retardant Cables VS Fire Resistant Cables?

Is a flame-retardant cable also fire resistant?

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.

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.

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 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.

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.