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Primary UD 25kV Copper XLPE insulation Concentric Neutral PVC 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, polyvinylchloride (PVC)

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
1	42.4	7.59	13	12	6.60	2.03	33.7	1544	–	–	–	–
1/0	53.5	8.53	16	12	6.60	2.03	34.7	1772	8.13	2.03	38.3	1958
2/0	67.4	9.55	13	10	6.60	2.03	36.8	2094	8.13	2.03	41.0	2325
3/0	85	10.7	16	10	6.60	2.03	38.0	2449	8.13	2.03	42.2	2687
4/0	107	12.1	20	10	6.60	2.03	39.3	2897	8.13	2.03	43.5	3144
250	127	13.2	25	10	6.60	2.03	41.0	3403	8.13	2.03	44.6	3617
1/3 Neutral
1	42.4	7.59	11	16	6.60	2.03	31.9	1242	–	–	–	–
1/0	53.5	8.53	14	16	6.60	2.03	33.2	1433	8.13	2.03	36.8	1619
2/0	67.4	67.4	18	16	6.60	2.03	34.2	1646	8.13	2.03	38.4	1877
3/0	85	10.7	22	16	6.60	2.03	35.4	1902	8.13	2.03	39.6	2140
4/0	107	12.1	18	14	6.60	2.03	37.4	2241	8.13	2.03	41.6	2488
250	127	13.2	21	14	6.60	2.03	39.1	2559	8.13	2.03	42.7	2773
350	177	15.6	18	12	6.60	2.03	42.4	3271	8.13	2.79	47.8	3687
500	253	18.7	26	12	6.60	2.03	45.4	4326	8.13	2.79	50.8	4771
750	380	23.1	25	10	6.60	2.79	52.6	6295	8.13	2.79	57.0	6660
1000	507	26.9	32	10	6.60	2.79	57.7	8061	8.13	2.79	61.3	8371

Application and case display

FAQ

What is the minimum order quantity for the product?

What are the benefits of EPR material?

Longitudinal Water Blocking vs. Lateral Water Blocking?

What are the weight limits for different types of packages?

How Do Water-Blocking Cables Work?

Armored vs. Unarmored Cables?

Armored cables are ideal for direct burial and laying underground, offering protection against environmental factors. Unarmored cables are unsuitable for burial or use in other challenging applications and installations.

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 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.

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

The validity period for most cold shrink cable accessories is typically 3 years from the date of manufacture, provided they are stored under recommended conditions. These conditions usually include controlled humidity and temperature ranges.

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.

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Tel: +86-371-63395670

Email: info@starsunelectric.com

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

Primary UD 25kV Copper XLPE insulation Concentric Neutral PVC Cable

Product Parameters

Application and case display

FAQ

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