Home > Medium Voltage Power Cables > Primary UD 15kV Copper XLPE insulation Concentric Neutral LLDPE Cable

Primary UD 15kV Copper XLPE insulation Concentric Neutral LLDPE Cable

Application

Primary UD Cables are used in primary distribution network systems in residential, commercial and industrial areas. They can be used in conduit pipes, underground ducts or directly buried.

Construction

Conductor:Copper, circular compressed or compacted stranded conductors
Conductor screen: Non-metallic, semi-conducting compound
Insulation: cross-linked polyethylene XLPE or TRXLPE
Insulation screen: Non-metallic, semi-conducting compound
Metallic screen: Copper wires concentric neutral is with full or one-third
Outer sheath:Sunlight resistant, LLDPE

Main Characteristics

Maximum conductor temperature in normal operation: 90°C
Emergency overload temperature: shall not exceed 130°C
Short circuit temperature (5 seconds maximum duration ): shall not exceed 250°C
Product manufacturing options: Blocking elements against the penetration of water in the metallic part for humid and wet environments.

Specification

ASTM B 8 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
ASTM B 496 Compact Round Concentric-Lay-Stranded Copper Conductors
ANSI/ICEA S-94-649 Concentric Neutral Cables Rated 5 Through 46kV

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Conductor			Copper Neutral		100% Insulation Level				133% Insulation Level
Size	Area	Nominal Diameter	No.of Wires	Size	Nominal Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx. Weight	Nominal Insulation Thickness	Nominal Sheath Thickness	Approx. Overall Diameter	Approx. Weight
AWG/kcmil	mm²	mm	No.	AWG	mm	mm	mm	kg/km	mm	mm	mm	kg/km
Full Neutral
2	33.6	6.81	16	14	4.45	2.03	27.6	1027	5.59	2.03	30.1	1109
1	42.4	7.59	13	12	4.45	2.03	29.2	1198	5.59	2.03	31.8	1295
1/0	53.5	8.53	16	12	4.45	2.03	30.2	1414	5.59	2.03	32.7	1510
2/0	67.4	9.55	13	10	4.45	2.03	32.3	1689	5.59	2.03	34.8	1793
3/0	85	10.7	16	10	4.45	2.03	33.5	2061	5.59	2.03	36.0	2165
4/0	107	12.1	20	10	4.45	2.03	34.8	2492	5.59	2.03	37.3	2604
1/3 Neutral
2	33.6	6.81	9	16	4.45	2.03	26.9	848	5.59	2.03	29.4	937
1	42.4	7.59	11	16	4.45	2.03	27.7	967	5.59	2.03	30.2	1056
1/0	53.5	8.53	14	16	4.45	2.03	28.7	1131	5.59	2.03	31.2	1228
2/0	67.4	9.55	18	16	4.45	2.03	29.7	1317	5.59	2.03	32.2	1421
3/0	85	10.7	22	16	4.45	2.03	30.9	1562	5.59	2.03	33.4	1667
4/0	107	12.1	18	14	4.45	2.03	32.9	1867	5.59	2.03	35.4	1979
250	127	13.2	21	14	4.45	2.03	34.0	2143	5.59	2.03	36.5	2284
350	177	15.6	18	12	4.45	2.03	37.3	2835	5.59	2.03	40.4	2961
500	253	18.7	26	12	4.45	2.03	40.9	3869	5.59	2.03	43.4	4010
750	380	23.1	25	10	4.45	2.79	48.1	5677	5.59	2.79	50.6	5840
1000	507	26.9	32	10	4.45	2.79	52.4	7246	5.59	2.79	55.7	7492

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FAQ

Why do cable prices vary significantly among suppliers within the same region?

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

What are the benefits of EPR material?

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

How Do Water-Blocking Cables Work?

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.

What is the application of Armored vs. Unarmored Cables?

Armored cables are suitable for use in hazardous environments, such as underground installations, areas with high moisture levels, and areas prone to mechanical damage. Unarmored cables are suitable for less demanding applications, such as inside walls or other protected locations.

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 are the benefits of EPR material?

EPR is widely used as an insulation material for electric cables due to its high dielectric strength, and it also serves as a sheathing material with excellent ozone and weathering resistance. EPR has a wide thermal range, typically spanning from -55°C to 150°C. Unlike other organic rubbers, there is no need to tin the copper conductor to prevent deterioration of the rubber.

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.