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Primary UD 15kV Aluminum 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: Aluminum, circular compressed or compacted stranded conductors
Conductor screen: Non-metallic, semi-conducting compound
Insulation: 100% and 133% and 173% insulation level, cross-linked polyethylene XLPE or treeretardant cross-linked polyethylene insulation (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 231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
ASTM B 400 Compact Round Concentric-Lay-Stranded Aluminum 1350 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	10	14	4.45	2.03	27.6	707	5.59	2.03	30.1	796
1	42.4	7.59	13	14	4.45	2.03	28.4	811	5.59	2.03	30.9	908
1/0	53.5	8.53	16	14	4.45	2.03	29.3	923	5.59	2.03	31.8	1019
2/0	67.4	9.55	13	12	4.45	2.03	31.2	1064	5.59	2.03	33.7	1161
3/0	85	10.7	16	12	4.45	2.03	32.3	1235	5.59	2.03	34.9	1339
4/0	107	12.1	13	10	4.45	2.03	34.8	1458	5.59	2.03	37.3	1570
1/3 Neutral
2	33.6	6.81	6	14	4.45	2.03	27.6	640	5.59	2.03	30.1	729
1	42.4	7.59	6	14	4.45	2.03	28.4	692	5.59	2.03	30.9	781
1/0	53.5	8.53	6	14	4.45	2.03	29.3	744	5.59	2.03	31.8	841
2/0	67.4	9.55	7	14	4.45	2.03	30.4	833	5.59	2.03	32.9	930
3/0	85	10.7	9	14	4.45	2.03	31.5	952	5.59	2.03	34.0	1056
4/0	107	12.1	11	14	4.45	2.03	32.9	1086	5.59	2.03	35.4	1198
250	127	13.2	13	14	4.45	2.03	34.0	1220	5.59	2.03	36.5	1362
350	177	15.6	18	14	4.45	2.03	36.4	1548	5.59	2.03	39.5	1674
500	253	18.7	16	12	4.45	2.03	40.9	1972	5.59	2.03	43.4	2105
750	380	23.1	24	12	4.45	2.03	47.1	2835	5.59	2.79	49.6	2991
1000	507	26.9	20	10	4.45	2.79	52.4	3504	5.59	2.79	55.7	3742

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FAQ

How Do Water-Blocking Cables Work?

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

Longitudinal Water Blocking vs. Lateral Water Blocking?

What are the weight limits for different types of packages?

What is the validity period for the offer of cable?

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 are the weight limits for different types of packages?

The weight limit for a wooden drum or steel wooden is 5,000 kg, and for a steel drum, it is 10,000 kg.

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.

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.

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

Cable prices vary due to differences in supplier strategies, competition, raw materials, and production processes, as well as after-sales services, including installation, equipment, and ongoing support.