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Medium Voltage Tree Wire AL/XLPE/PE(LDPE) ANSI/ICEA S-121-733
Medium Voltage Tree Wire AL/XLPE/PE(LDPE) ANSI/ICEA S-121-733

Medium Voltage Tree Wire AL/XLPE/PE(LDPE) ANSI/ICEA S-121-733

This standard applies of tree wire and messenger supported spacer cable and CCX etc. These conductors are intended primarily for the distribution of electrical energy under normal conditions of overhead (aerial) installations.

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Application Construction Characteristics Parameter Related Products

APPLICATION

This standard applies of tree wire and messenger supported spacer cable and CCX etc. These conductors are intended primarily for the distribution of electrical energy under normal conditions of overhead (aerial) installations. They are considered as covered conductors therefore the cables carry no voltage rating. The conductors must be installed on insulators and/or spacers adequate for the service voltage. The user may want to give consideration to the dielectric compatibility of the covering, insulator, spacer and tree wire.

CONSTRUCTION

tree wire

• Conductor: Stranded, circular compressed aluminum, aluminum-alloy, copper, ACSR or ACSR/AW etc.
• Conductor Screen: The extruded Semi-conducting conductor shield in Black.
• Inner Insulation: Natural color thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE).
• Outer Insulation: Thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE) in Black or Grey or Red with Weather or UV resistant.

CHARACTERISTICS

Ⅰ. Electrical Properties

The tree wire is engineered with reliable electrical conductivity and stable insulation performance, meeting standard rated voltage requirements with high insulation resistance and dielectric strength to ensure continuous and safe power transmission in overhead power supply circuits.

Ⅱ. Heat Resistance & Thermal Performance

Made of cross-linked polyethylene insulation, the cable boasts superior thermal stability, supporting a high long-term working temperature and avoiding insulation ageing or breakdown caused by heat buildup during sustained power load operation.

Ⅲ. Mechanical Strength

It features robust tensile, compression and impact resistance, with good bending performance to facilitate on-site installation and wiring, and can withstand external mechanical force without easy deformation or core breakage.

Ⅳ. Anti-Abrasion & Anti-Friction Property

Tailored for overhead laying among trees, the cable surface is highly resistant to scraping and friction from tree branches, effectively preventing outer sheath damage and insulation abrasion from long-term contact with vegetation.

Ⅴ. Weather & Environmental Resistance

The outer sheath provides excellent UV resistance, anti-ageing capacity and weatherproof ability, capable of enduring long-term exposure to wind, rain and sunlight outdoors while resisting mild chemical erosion and damp corrosion.

Ⅵ. Anti-Corrosion Durability

All metal reinforcing components are treated with anti-corrosion processes to prevent rust and deterioration in humid, rainy and outdoor conditions, greatly prolonging the overall service life of the overhead tree wire.

Ⅶ. Application Adaptability

This type of wire is specially suitable for overhead distribution lines passing through wooded areas, adapting to complex field laying conditions and lowering maintenance frequency for power lines in forested zones.

STANDARD

ANSI/ICEA S-121-733

NTC 5909

BS EN 50397-1

 

15kV Tree Wire                                       ANSI/ICEA S-121-733
Size
(AWG or kcmil)		 No.
of Wires		 Covering Thickness Cable Diameter Rated
Strength		 Weight
Conductor Shield Inner Layer Outer Layer
No. mm mm mm mm kN kg/km
3-Layer 15kV ACSR/XLPE/HDPE
6 6/1 0.38 1.91 1.91 13.6 5.28  188
4 6/1 0.38 1.91 1.91 14.8 8.30  238
3 6/1 0.38 1.91 1.91 15.6 10.20  271
2 6/1 0.38 1.91 1.91 16.5 12.70  313
1 6/1 0.38 1.91 1.91 17.4 15.60  362
1/0 6/1 0.38 1.91 1.91 18.5 19.40  424
2/0 6/1 0.38 1.91 1.91 19.6 23.30  496
3/0 6/1 0.38 1.91 1.91 20.7 29.40  584
4/0 6/1 0.38 1.91 1.91 22.4 37.10  699
266.8 18/1 0.38 1.91 1.91 23.7 30.30  713
336.4 18/1 0.38 1.91 1.91 25.2 38.20  847
3-Layer 15kV AAAC/XLPE/HDPE
48.69 7 0.38 1.91 1.91 15.2 7.83 223
77.47 7 0.38 1.91 1.91 16.8 12.4 286
123.3 7 0.38 1.91 1.91 19.0  18.9 383
155.4 7 0.38 1.91 1.91 20.1 23.8 443
195.7 7 0.38 1.91 1.91 21.5 30.0  521
246.9 7 0.38 1.91 1.91 23.0  37.8 614
312.8 19 0.38 1.91 1.91 24.9 46.5 740
394.5 19 0.38 1.91 1.91 27.4 58.6 892
465.4 19 0.38 1.91 1.91 28.4 69.2 1008
559.5 19 0.51 1.91 1.91 30.4 83.1 1168
652.4 19 0.51 1.91 1.91 31.8 97.0  1320
740.8 37 0.51 1.91 1.91 33.3 107 1463
3-Layer 15kV AAC/XLPE/HDPE
4 7 0.38 1.91 1.91 14.4 3.52 204
2 7 0.38 1.91 1.91 15.8 5.39 259
1/0 7 0.38 1.91 1.91 17.7 7.96 341
2/0 7 0.38 1.91 1.91 18.6 9.99 394
3/0 7 0.38 1.91 1.91 19.7 12.15 459
4/0 7 0.38 1.91 1.91 21.1 15.30  541
266.8 19 0.38 1.91 1.91 23.0  19.89 648
336.4 19 0.38 1.91 1.91 24.9 24.57 775
397.5 19 0.38 1.91 1.91 26.1 28.44 878
477 19 0.38 1.91 1.91 27.9 33.30  1017
556.5 37 0.51 1.91 1.91 30.1 39.87 1161
636 37 0.51 1.91 1.91 31.5 45.36 1295
795 37 0.51 2.03 2.03 34.2 55.62 1557
25kV Tree Wire                                    ANSI/ICEA S-121-733
Size
(AWG or kcmil)		 No.
of Wires		 Covering Thickness Cable diameter Rated
Strength		 Weight
Conductor Shield Inner Layer Outer Layer
No. mm mm mm mm kN kg/km
3-Layer 25kV ACSR/XLPE/HDPE
1/0 6/1 0.38 3.18 3.18 23.6 19.4 586
2/0 6/1 0.38 3.18 3.18 24.7 23.3 666
3/0 6/1 0.38 3.18 3.18 25.8 29.4 763
4/0 6/1 0.38 3.18 3.18 27.5 37.1 891
266.8 18/1 0.38 3.18 3.18 28.6 30.3 913
336.4 18/1 0.38 3.18 3.18 30.1 38.2 1058
3-Layer 25kV AAAC/XLPE/HDPE
48.69 7 0.38 3.18 3.18 20.1 7.83 358
77.47 7 0.38 3.18 3.18 21.7 12.4 434
123.3 7 0.38 3.18 3.18 23.9 18.9 547
155.4 7 0.38 3.18 3.18 25.0  23.8 616
195.7 7 0.38 3.18 3.18 26.4 30.0  704
246.9 7 0.38 3.18 3.18 27.9 37.8 809
312.8 19 0.38 3.18 3.18 29.6 46.5 939
394.5 19 0.38 3.18 3.18 32.1 58.6 1109
465.4 19 0.38 3.18 3.18 33.1 69.2 1232
559.5 19 0.51 3.18 3.18 35.1 83.1 1407
652.4 19 0.51 3.18 3.18 36.5 97.0  1569
740.8 37 0.51 3.18 3.18 38.0  107 1723
927.2 37 0.51 3.18 3.18 40.9 135 2050
3-Layer 25kV AAC/XLPE/HDPE
1/0 7 0.38 3.18 3.18 22.8 7.96 497
2/0 7 0.38 3.18 3.18 23.7 9.99 556
3/0 7 0.38 3.18 3.18 24.8 12.15 630
4/0 7 0.38 3.18 3.18 26.2 15.30  723
266.8 19 0.38 3.18 3.18 27.7 19.89 833
336.4 19 0.38 3.18 3.18 29.6 24.57 973
397.5 19 0.38 3.18 3.18 30.8 28.44 1086
477 19 0.38 3.18 3.18 32.6 33.30  1237
556.5 37 0.51 3.18 3.18 34.8 39.87 1398
636 37 0.51 3.18 3.18 36.2 45.36 1542
795 37 0.51 3.18 3.18 38.9 55.62 1824
35kV Tree Wire                                   ANSI/ICEA S-121-733
Size
(AWG or kcmil)		 No.
of Wires		 Covering Thickness Cable Diameter Rated
Strength		 Weight
Conductor Shield Inner Layer Outer Layer
No. mm mm mm mm kN kg/km
3-Layer 35kV ACSR/XLPE/HDPE
1/0 6/1 0.38 4.45 3.18 26.1 19.4 682
2/0 6/1 0.38 4.45 3.18 27.2 23.3 767
3/0 6/1 0.38 4.45 3.18 28.4 29.4 868
4/0 6/1 0.38 4.45 3.18 30.0  37.1 1002
266.8 18/1 0.38 4.45 3.18 31.1 30.3 1028
336.4 18/1 0.38 4.45 3.18 32.6 38.2 1179
3-Layer 35kV AAAC/XLPE/HDPE
48.69 7 0.38 4.45 3.18 22.6 7.83 441
77.47 7 0.38 4.45 3.18 24.2 12.4 523
123.3 7 0.38 4.45 3.18 26.4 18.9 644
155.4 7 0.38 4.45 3.18 27.5 23.8 718
195.7 7 0.38 4.45 3.18 28.9 30.0  811
246.9 7 0.38 4.45 3.18 30.4 37.8 922
312.8 19 0.38 4.45 3.18 32.1 46.5 1059
394.5 19 0.38 4.45 3.18 34.6 58.6 1238
465.4 19 0.38 4.45 3.18 35.6 69.2 1365
559.5 19 0.51 4.45 3.18 37.6 83.1 1547
652.4 19 0.51 4.45 3.18 39.0  97.0  1715
740.8 37 0.51 4.45 3.18 40.5 107 1874
927.2 37 0.51 4.45 3.18 43.4 135 2213
3-Layer 35kV AAC/XLPE/HDPE
1/0 7 0.38 4.45 3.18 25.3 7.96 590
2/0 7 0.38 4.45 3.18 26.2 9.99 653
3/0 7 0.38 4.45 3.18 27.3 12.15 731
4/0 7 0.38 4.45 3.18 28.7 15.30  829
266.8 19 0.38 4.45 3.18 30.2 19.89 946
336.4 19 0.38 4.45 3.18 32.1 24.57 1094
397.5 19 0.38 4.45 3.18 33.3 28.44 1210
477 19 0.38 4.45 3.18 35.1 33.30  1369
556.5 37 0.51 4.45 3.18 37.3 39.87 1538
636 37 0.51 4.45 3.18 38.8 45.36 1688
795 37 0.51 4.45 3.18 41.4 55.62 1980

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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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