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URD Cable-Primary Underground Distribution Cable, EPR/LDPE, MV-105℃ - 100% or 133% Insulation Level
URD Cable-Primary Underground Distribution Cable, EPR/LDPE, MV-105℃ - 100% or 133% Insulation Level

URD Cable-Primary Underground Distribution Cable, EPR/LDPE, MV-105℃ - 100% or 133% Insulation Level

URD Cable(Underground primary cable) for residential and commercial distribution circuits
• Suitable for use in wet or dry locations, installed in underground ducts or direct buried
• Wet and dry locations: Operating conductor temperature 150°C (MV-105), Emergency 140°C,
• Short Circuit 250°C
• 100% or 133% Insulation Level
• HMWPE/LDPE outer sheath

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Application Construction Characteristics Parameter Related Products

APPLICATION

 

URD cables are predominantly used for primary underground distribution in conduit systems suitable for use in wet or drylocations, direct burial, underground duct, and where exposed to sunlight. To be used at 35,000 volts or less andat conductor temperatures not to exceed 90°C(MV90) or 150°C(MV-105) for normal operation.

CONSTRUCTION

 

URD CABLE

• Conductor:Aluminum/Copper,Class 2 stranded circular or circular compacted

• Semi-Conductive Layer for Conductor:Semi-conductive material

• Insulation:EPR Rubber

• Semi-Conductive Layer for Insulation：Semi-conductive material

• Metallic screen：Copper wires 

• Outer Sheath：LDPE/PE/LSZH

The outer sheath has three red stripes.

CHARACTERISTICS

 

Aspect Details & Applications
    Conductor Material Annealed copper or aluminum, solid or stranded, per IEC 60228 / ASTM B8
    Insulation Material XLPE (Cross-linked Polyethylene) or EPR (Ethylene Propylene Rubber) – for high dielectric strength and thermal stability
    Insulation Grade 100% level: For systems with effectively grounded neutral133% level: For systems with ungrounded or intermittently grounded neutral
    Voltage Range Typically from 5 kV to 35 kV
    Cable Type Unarmoured or armoured, with metallic shield (copper tape or wire)
    Sheath Material LDPE or LSZH (Low Smoke Zero Halogen) – protects against UV, chemicals, and mechanical damage
    Standards ICEA S-93-639 (NEMA WC74), ICEA S-97-682, IEEE 383, IEC 60502-2, AEIC CS8
    Electrical Properties High dielectric strength, low partial discharge, stable under long-term loading
    Temperature Rating 90°C continuous operation; up to 250°C in short circuit (5 sec)
    Shielding Metallic shield ensures proper fault current path and controls electric field
    Typical Applications Power distribution in utilities, industrial zones, substations- Installed in duct banks, conduits, direct buried or trays
    Selection Tip Use 100% insulation for grounded systems (more economical)Use 133% insulation where fault clearance may be delayed

STANDARD

ICEA S-94-649
AEIC CS8
ASTM B231/B231M

15 kV URD Cable CU(AL)/XLPE/CWS/LHPE One-third Neutral
Conductor One-third 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 AWG mm mm mm kg/km mm mm mm kg/km
Copper Conductor
2 33.6 6.81 9 16 4.45 2.03 26.9 933 5.59 2.03 29.4 1038
1 42.4 7.59 11 16 4.45 2.03 27.7 1062 5.59 2.03 30.2 1170
1/0 53.5 8.53 14 16 4.45 2.03 28.7 1228 5.59 2.03 31.2 1340
2/0 67.4 9.55 18 16 4.45 2.03 29.7 1435 5.59 2.03 32.2 1550
3/0 85 10.7 22 16 4.45 2.03 30.9 1682 5.59 2.03 33.4 1802
4/0 107 12.1 18 14 4.45 2.03 32.9 2013 5.59 2.03 35.4 2138
250 127 13.2 21 14 4.45 2.03 34 2284 5.59 2.03 36.5 2413
350 177 15.6 18 12 4.45 2.03 37.3 2977 5.59 2.03 40.4 3155
500 253 18.7 26 12 4.45 2.03 40.9 4049 5.59 2.03 43.4 4202
750 380 23.1 25 10 4.45 2.79 48.1 5971 5.59 2.79 50.6 6149
1000 507 26.9 32 10 4.45 2.79 52.4 7624 5.59 2.79 55.7 7900
Aluminum Conductor
2 33.6 6.81 6 14 4.45 2.03 27.6 734 5.59 2.03 30.1 839
1 42.4 7.59 6 14 4.45 2.03 28.4 782 5.59 2.03 30.9 890
1/0 53.5 8.53 6 14 4.45 2.03 29.3 841 5.59 2.03 31.8 952
2/0 67.4 9.55 7 14 4.45 2.03 30.4 930 5.59 2.03 32.9 1045
3/0 85 10.7 9 14 4.45 2.03 31.5 1053 5.59 2.03 34 1172
4/0 107 12.1 11 14 4.45 2.03 32.9 1195 5.59 2.03 35.4 1320
250 127 13.2 13 14 4.45 2.03 34 1321 5.59 2.03 36.5 1450
350 177 15.6 18 14 4.45 2.03 36.4 1633 5.59 2.03 39.5 1810
500 253 18.7 16 12 4.45 2.03 40.9 2128 5.59 2.03 43.4 2280
750 380 23.1 24 12 4.45 2.79 47.1 3051 5.59 2.79 49.6 3230
1000 507 26.9 20 10 4.45 2.79 52.4 3819 5.59 2.79 55.7 4095
25 kV URD Cable CU(AL)/XLPE/CWS/LHPE One-third Neutral
Conductor One-third 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 AWG mm mm mm kg/km mm mm mm kg/km
Copper Conductor
1 42.4 7.59 11 16 6.6 2.03 31.9 1242 – – – –
1/0 53.5 8.53 14 16 6.6 2.03 33.2 1433 8.13 2.03 36.8 1619
2/0 67.4 9.55 18 16 6.6 2.03 34.2 1646 8.13 2.03 38.4 1877
3/0 85 10.7 22 16 6.6 2.03 35.4 1902 8.13 2.03 39.6 2140
4/0 107 12.1 18 14 6.6 2.03 37.4 2241 8.13 2.03 41.6 2488
250 127 13.2 21 14 6.6 2.03 39.1 2559 8.13 2.03 42.7 2773
350 177 15.6 18 12 6.6 2.03 42.4 3271 8.13 2.79 47.8 3687
500 253 18.7 26 12 6.6 2.03 45.4 4326 8.13 2.79 50.8 4771
750 380 23.1 25 10 6.6 2.79 52.6 6295 8.13 2.79 57 6660
1000 507 26.9 32 10 6.6 2.79 57.7 8061 8.13 2.79 61.3 8371
Aluminum Conductor
1 42.4 7.59 6 14 6.6 2.03 32.9 980
1/0 53.5 8.53 6 14 6.6 2.03 33.8 1045 8.13 2.03 37.4 1231
2/0 67.4 9.55 7 14 6.6 2.03 34.8 1142 8.13 2.03 39 1372
3/0 85 10.7 9 14 6.6 2.03 36 1272 8.13 2.03 40.2 1509
4/0 107 12.1 11 14 6.6 2.03 37.4 1424 8.13 2.03 41.6 1671
250 127 13.2 13 14 6.6 2.03 39.1 1596 8.13 2.03 42.7 1811
350 177 15.6 18 14 6.6 2.03 41.5 1926 8.13 2.03 45.1 2154
500 253 18.7 16 12 6.6 2.03 45.4 2405 8.13 2.79 50.8 2849
750 380 23.1 24 12 6.6 2.79 51.6 3375 8.13 2.79 56.1 3741
1000 507 26.9 20 10 6.6 2.79 57.7 4256 8.13 2.79 61.3 4566
35 kV URD Cable CU(AL)/XLPE/CWS/LDPE One-third Neutral
Conductor One-third 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 AWG mm mm mm kg/km mm mm mm kg/km
Copper Conductor
1/0 53.5 8.53 14 16 8.76 2.03 38.7 1736 10.67 2.03 42.3 1947
2/0 67.4 9.55 18 16 8.76 2.03 39.8 1958 10.67 2.03 43.3 2175
3/0 85 10.7 22 16 8.76 2.03 41 2223 10.67 2.03 44.5 2447
4/0 107 12.1 18 14 8.76 2.03 43 2574 10.67 2.79 48.3 2995
250 127 13.2 21 14 8.76 2.03 44.1 2861 10.67 2.79 49.4 3292
350 177 15.6 18 12 8.76 2.79 49.2 3786 10.67 2.79 52.8 4049
500 253 18.7 26 12 8.76 2.79 52.2 4876 10.67 2.79 56.6 5239
750 380 23.1 25 10 8.76 2.79 58.4 6776 10.67 2.79 62 7082
1000 507 26.9 32 10 8.76 2.79 62.7 8496 10.67 2.79 66.2 8825
Aluminum Conductor
1/0 53.5 8.53 6 14 8.76 2.03 39.4 1348 10.67 2.03 43 1559
2/0 67.4 9.55 7 14 8.76 2.03 40.4 1453 10.67 2.03 44 1670
3/0 85 10.7 9 14 8.76 2.03 41.6 1592 10.67 2.03 45.1 1815
4/0 107 12.1 11 14 8.76 2.03 43 1756 10.67 2.79 48.3 2177
250 127 13.2 13 14 8.76 2.03 44.1 1899 10.67 2.79 49.4 2330
350 177 15.6 18 14 8.76 2.79 48.3 2437 10.67 2.79 51.8 2699
500 253 18.7 16 12 8.76 2.79 52.2 2954 10.67 2.79 56.6 3317
750 380 23.1 24 12 8.76 2.79 57.5 3857 10.67 2.79 61 4164
1000 507 26.9 20 10 8.76 2.79 62.7 4691 10.67 2.79 66.2 5020

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Huili Cable Co., Ltd. (formerly Luohe Huili Cable Co., Ltd. and Luohe Cable Factory) was founded in 1989 and was renamed Huili Cable Co., Ltd. on September 14, 2024. The company's registered capital is RMB 200 million.

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