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IEC61089 Cable, Overhead Line

Spacer Cable(Tree Wire)

This cable is 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.

Certificates: ISO 9001,ISO 14001 ,ISO 45001
Standards: ANSI/ICEA S-121-733,NTC 5909,BS EN 50397-1
Characteristic: Overhead service ,abrasion resistance,Reduced fault risk,Lower wildfire ignition potential,Compatible with spacer or conventional overhead systems

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Application

The Spacer Cable(Tree Wire) is a covered overhead conductor designed for reliable medium-voltage distribution in areas with heavy tree contact. This construction significantly reduces the risk of faults caused by tree limbs, minimizes wildfire ignition potential, and allows closer spacing to vegetation. Suitable for both spacer cable systems and conventional overhead lines.

DESCRIPTION

The cables are stranded,circular compressed aluminum, aluminum-alloy, copper, ACSR or ACSR/AW etc. The conductor screen is the extruded Semi-conducting conductor shield in Black. The inner Insulation is mainly natural color thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE). And the outer Insulation is mainly thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE) in Black or Grey or Red with Weather or UV resistant. This standard covers both thermoplastic and cross linked polyethylene constructions, rated for 75°C or 90°C normal service temperature.

STANDARDS

● ANSI/ICEA S-121-733 Tree Wire and Messenger Supported Spacer Cable
● NTC 5909 Cables De Potencia Cubiertos(Semiaislados) No Apantallados De 15000 Voltios-46000 Voltios,Para Uso En Lineas Aéreas De Distribución De Energía Eléctrica
● BS EN 50397-1 Covered Conductors for Overhead Lines and the Related Accessories for Rated Voltages above 1 kV a.c. and Not Exceeding 36 kV a.c.— Part 1: Covered conductors

CONSTRUCTION

Technical data

ANSI/ICEA S-121-733

15kV Tree Wire (Spacer Wire)
Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	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	8.3	238
3	6/1	0.38	1.91	1.91	15.6	10.2	271
2	6/1	0.38	1.91	1.91	16.5	12.7	313
1	6/1	0.38	1.91	1.91	17.4	15.6	362
1/0	6/1	0.38	1.91	1.91	18.5	19.4	424
2/0	6/1	0.38	1.91	1.91	19.6	23.3	496
3/0	6/1	0.38	1.91	1.91	20.7	29.4	584
4/0	6/1	0.38	1.91	1.91	22.4	37.1	699
266.8	18/1	0.38	1.91	1.91	23.7	30.3	713
336.4	18/1	0.38	1.91	1.91	25.2	38.2	847

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	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	521
246.9	7	0.38	1.91	1.91	23	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	1320
740.8	37	0.51	1.91	1.91	33.3	107	1463

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	15.3	541
266.8	19	0.38	1.91	1.91	23	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	33.3	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 (Spacer Wire)
Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	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

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	23.8	616
195.7	7	0.38	3.18	3.18	26.4	30	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	1569
740.8	37	0.51	3.18	3.18	38	107	1723
927.2	37	0.51	3.18	3.18	40.9	135	2050

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	15.3	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	33.3	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 (Spacer Wire)
Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	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	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

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	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	97	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

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
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	15.3	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	33.3	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

46kV Tree Wire (Spacer Wire)
Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
3-Layer 46kV AAAC/XLPE/HDPE
48.69	7	0.38	5.72	4.45	27.7	7.83	640
77.47	7	0.38	5.72	4.45	29.3	12.4	734
123.3	7	0.38	5.72	4.45	31.5	18.9	873
155.4	7	0.38	5.72	4.45	32.6	23.8	955
195.7	7	0.38	5.72	4.45	34	30	1060
246.9	7	0.38	5.72	4.45	35.5	37.8	1182
312.8	19	0.38	5.72	4.45	37.2	46.5	1332
394.5	19	0.38	5.72	4.45	39.7	58.6	1531
465.4	19	0.38	5.72	4.45	40.7	69.2	1666
559.5	19	0.51	5.72	4.45	42.7	83.1	1864
652.4	19	0.51	5.72	4.45	44.1	97	2043
740.8	37	0.51	5.72	4.45	45.6	107	2214
927.2	37	0.51	5.72	4.45	48.5	135	2575

Size (AWG or kcmil)	No.of Wires	Covering Thickness			Cable Diameter	Rated Strength	Weight
	No.of Wires	Conductor Shield	Inner Layer	Outer Layer	Cable Diameter	Rated Strength	Weight
	No.	mm	mm	mm	mm	kN	kg/km
3-Layer 46kV AAC/XLPE/HDPE
1/0	7	0.38	5.72	4.45	30.4	7.96	810
2/0	7	0.38	5.72	4.45	31.3	9.99	880
3/0	7	0.38	5.72	4.45	32.4	12.15	968
4/0	7	0.38	5.72	4.45	33.8	15.3	1077
266.8	19	0.38	5.72	4.45	35.3	19.89	1205
336.4	19	0.38	5.72	4.45	37.2	24.57	1367
397.5	19	0.38	5.72	4.45	38.4	28.44	1494
477	19	0.38	5.72	4.45	40.2	33.3	1666
556.5	37	0.51	5.72	4.45	42.4	39.87	1853
636	37	0.51	5.72	4.45	43.9	45.36	2014
795	37	0.51	5.72	4.45	46.5	55.62	2326

FAQ

What is Spacer Cable(Tree Wire)?

Spacer Cable(Tree Wire) is a covered overhead conductor designed for reliable medium-voltage distribution in areas with heavy tree contact. It features concentrically stranded ACSR or AAC conductors with a dual-layer covering of track-resistant high-density polyethylene (HDPE) or cross-linked polyethylene (XLPE). The inner layer provides insulation while the outer layer offers superior tracking and weathering resistance.

What is the application of Spacer Cable(Tree Wire)?

The Wire is a covered overhead conductor designed for reliable medium-voltage distribution in areas with heavy tree contact,Suitable for both spacer cable systems and conventional overhead lines.

What are the voltage ratings for Spacer Cable(Tree Wire) ?

The commonly used voltage is 15KV, 25KV, 35KV and 46KV.

What the characteristic of Spacer Cable(Tree Wire)?

Dual-layer covering for superior tracking and abrasion resistance
ACSR or AAC conductor options for optimal strength-to-weight ratio
Reduced fault risk from tree contact and wildlife
Lower wildfire ignition potential compared to bare conductors
Compatible with spacer or conventional overhead systems

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