Covered Aerial MV Cable (Spacer Cable or Tree Wire)

Voltage: 15kV, 25kV, 35kV; 6.35/11kV, 12.7/22kV & 19/33kV

Conductor: Concentrically stranded AAC, AAAC (either compressed or full compact depending on conductor size) or ACSR

Strand Shield: Semi-conducting cross linked polymer

Covering: track-resistant high-density polyethylene (TR-HDPE)

Track-Resistant Cross-linked Polyethylene (TK_XLPE)


Overview

Application

Covered Aerial MV Cable – Installed with other Covered Aerial MV cables and a supporting messenger through a series of space- maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation, particularly useful in congested areas.

Tree Wire – Used for spans where trees crowd the right-of-way, such as in wooded residential areas, when a minimum of interference with the environment is desired. Covering minimizes power outages due to conductor contact with tree limbs, reducing the need for frequent or severe trimming.

Spacer Cable – Installed with other spacer cables and a supporting messenger through a series of space-maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation; particularly useful in congested areas.


Construction

AAC, AAAC, ACSR Hard drawn Aluminum conductors & high die electric strength; Galvanise steel wire zinc coated & high impact/ abrasion resistant

concentrically stranded insulated with Cross-linked polyethylene (XLPE)

Jacketed with weather, track & sunlight resistant High density polyethylene (HDPE)

TREE WIRE SPACER CABLE.jpg

tree wire.png

Standards

American Standard One Two Three Layer  MV 5kv 15KV 25KV 35KV Overhead Covered Conductor.

Australia Standard AS/NZS 3675 MV 6.35/11kv 12.7/22kV CCT Overhead Covered  Conductor, Aerial Cables

IEC BS EN 50397 Standard 15kv 25kv 35kv Overhead Covered Conductor


ASTM B230 Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes

ASTM B231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors

ASTM B232 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) 

ASTM B398 Standard Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes

ASTM B399 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors

ASTM B400 Standard Specification for Compact Round Concentric-Lay-Stranded Conductors

ASTM D2656 Standard Specification for Cross-linked Polyethylene Insulation for Wire and Cable Rated 2001 to 35 000 V

ASTM D1248 Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

ICEA S-70-547 Standard Specification for Weather Resistant Polyethylene Covered Conductors

The conductor shield shall be an extruded back semiconductor polymer meeting the physical requirements of ICEA S-61-402.

Available with track-resistant high-density polyethylene (TR-HDPE) per ASTM D1248 or Track-Resistant Cross-linked Polyethylene (TK_XLPE) covering per ASTM D2656 and ICEA S-66-524

Parameter

ASTM
AS/NZS 3675
IEC BS EN 50397
One-Layer 5kv AAC Tree Wire (All-Aluminum Conductors)
Size (AWG or kcmil)StrandingCover Thickness (mils)Cable O.D.+ (mils)Rated Strenght (lbs)Weight per 1000 ft. (lbs)Allowable Ampacity*
XLPHD Poly
47803857937273135
27804431210102104180
119804821570121123210
1/019805221940146148240
2/019805652400176179275
3/019806162980215218320
4/019806723620263266370
25037807184420300304410
266.819807344470322325425
30037807715300353356455
336.437808075790391395490
35037808216080406409505
47737809317820536541610
50037809508200560565625
One-Layer 5kv ACSR Tree Wire (Aluminum Conductor Steel Reinforced)
46/18041017709496135
26/1804762710137139180
16/1805143370166168205
1/06/1805584160202205230
2/06/1806075040247250265
3/06/1806626290303307305
4/06/1807237930374378345
266.818/1807696540372376430
266.826/78080210700449453440
336.418/1808448250458463500
336.426/78088013400555559510
397.518/1809039440534539555
397.526/78094315500647652565
47718/18097411200631637620
47726/7801018185000767773630
One-Layer 15kv AAC Tree Wire (All-Aluminum Conductors)
47150525793114115135
271505831210150151175
1191506221570172173205
1/0191506621940--202235
2/0191507052400236237270
3/0191507562980279281310
4/0191508123620333334355
266.8191508744470397399410
300371509115300432433440
336.4371509475790473475475
350371509616080489491485
4773715010717820631633585
5003715010908200656658605
One-Layer 15kv ACSR Tree Wire (Aluminum Conductor Steel Reinforced)
46/11505501770139140135
26/11506162710188189175
16/11506543370221222200
1/06/11506984160261263230
2/06/11507475040--312260
3/06/11508026290372374295
4/06/11508637930449450330
266.818/11509096540451453415
266.826/715094210700531533425
336.418/11509848250545547480
336.426/7150102013400645647490
397.518/115010439440626628535
397.526/7150108315500743745545
47718/1150111411200730733595
47726/7150115818500870872610
2-Layer 15kV ACSR Tree Wire
46/125075755501767136
26/131675756162708184
1/06/139875756984161255
2/06/144775757475045303
3/06/150275758026289362
4/06/156375758637933432
266.818/160975759096536441
266.826/7642757594210735452
336.418/168475759848246536
336.426/77207575102013395555
336.430/77417575104116435621
397.518/1743757510439443611
397.524/77727575107213870609
397.526/7783757510831545645
47724/78467575114616340719
47726/78587575115818525762
47730/78837575118322610854
556.518/18797575117913015813
556.524/79147575121418810828
556.526/79277575122721470878
63618/19407575124014915912
63624/79777575127720900936
63626/79907575129023940993
79526/7110880801428299251234
79545/7106380801383209951031
2-Layer 15kV AAAC Tree Wire
48.694725075755501584124
77.472731675756162520165
123.31/0739875756984014225
155.42/0744775757474851265
195.73/0750275758026111314
246.94/0756375758637704376
312.8266.81964275759429900450
394.5336.4197207575102011970543
465.4397.5197827575108214040623
559.5477198587575115816920727
652.4556.5199277575122719710828
740.8636379908080131021960938
2-Layer 15kV AAC Tree  Wire
1/0733675756361791196
2/0737675756762259230
3/0742375757232736272
4/0747575757753447325
266.81953775758374473387
336.41960375759035535466
397.51965975759596399535
47719722757510227524623
556.537780757510808946708
636378357575113510260794
3-Layer 15kV ACSR Tree Wire
Size (AWG or kcmil)StrandingConductor Diameter (mils)Covering Thickness (mils)Cable O.D. (mils)Rated Strength (lbs)Weight per 1000 ft. (lbs)
Conductor ShieldInner LayerOuter Layer
46/12501575755801767151
26/13161575756462708202
1/06/13981575757284161278
2/06/14471575757775045330
3/06/15021575758326289393
4/06/15631575758937933471
266.818/16091575759396536474
266.826/764215757597210735553
336.418/168415757510148246570
336.426/7720157575105013395669
336.430/7741157575107116435935
397.518/174315757510739443653
397.524/7772157575110213870707
397.526/7783157575111315485770
47724/7846157575117616340824
47726/7858157575118818525899
47730/78831575751213226101274
556.518/1879207575121913015874
556.524/7914207575125418810949
556.526/79272075751267214701036
63618/19402075751280149151200
63626/79902075751330239401373
3-Layer 15kV AAAC Tree  Wire
48.69472501575755801584137
77.47273161575756462520179
123.31/073981575757284014241
155.42/074471575757774851283
195.73/075021575758326111334
246.94/075631575758937704397
312.8266.8196421575759729900473
394.5336.419720157575105011970568
465.4397.519783157575111314040649
559.547719858157575118816920755
652.4556.519927207575126719710894
740.863637990207575133021960963
3-Layer 15kV AAC Tree Wire
1/073361575756661791
2/073761575757062259
3/074231575757532736
4/074751575758053447
266.8195371575758674473
336.4196031575759335535
397.5196591575759896399
4771972215757510527524
556.53778020757511208946
63637835208080119510260
79537932208080129212510
3-Layer 25kV ACSR Tree Wire
1/06/1398151251259284161385
2/06/1447151251259775045443
3/06/15021512512510326289513
4/06/15631512512510937933600
266.818/16091512512511396536608
266.826/764215125125117210735692
336.418/16841512512512148246714
336.426/772015125125125013395818
336.430/7741151251251271164351086
397.518/17431512512512739443804
397.524/777215125125130213870863
397.526/778315125125131315485926
47724/784620125125138616340999
47726/7858201251251398185251076
47730/7883201251251423226101458
556.518/1879201251251419130151045
556.524/7914201251251454188101124
556.526/7927201251251467214701213
3-Layer 25kV AAAC Tree Wire
48.6947250151251257801584225
77.4727316151251258462520275
123.31/07398151251259284014348
155.42/07447151251259774851396
195.73/075021512512510326111454
246.94/075631512512510937704525
312.8266.8196421512512511729900611
394.5336.41972015125125125111970716
465.4397.51978315125125131314040805
559.54771985820125125139816920932
652.4556.519927201251251467197101044
740.863637990201251251530219601148
927.2795371108201251251648274501389
3-Layer 25kV AAC Tree  Wire
1/07336151251258661791309
2/07376151251259062259350
3/07423151251259532736400
4/074751512512510053447460
266.8195371512512510674473531
336.4196031512512511335535621
397.5196591512512511896399698
477197222012512512627524806
556.5377802012512513208946899
6363783520125125137510260995
79537932201251251472125101181
3-Layer 35kV ACSR Tree Wire
1/06/13981517512510284161448
2/06/14471517512510775045509
4/06/15631517512511937933673
266.818/16091517512512396536684
266.826/764215175125127210735770
336.418/16841517512513148246794
336.426/772015175125135013395901
336.430/7741151751251371164351170
397.518/17431517512513739443889
397.524/777215175125140213870949
397.526/7783151751251413154851013
47724/7846201751251486163401091
47726/7858201751251498185251168
47730/7883201751251523226101552
556.518/1879201751251519130151138
556.524/7914201751251554188101220
556.526/7927201751251567214701309
63618/1940201751251580149151637
63626/7990201751251630239401826
79526/71107201751251747299252146
79545/71063201751251703209951892
3-Layer 35kV AAAC Tree  Wire
48.6947250151751258801584278
77.4727316151751259462520333
123.31/073981517512510284014411
155.42/074471517512510774851462
195.73/075021517512511326111523
246.94/075631517512511937704598
312.8266.8196421517512512729900689
394.5336.41972015175125135111970799
465.4397.51978315175125141214040892
559.547719858201751251498169201024
652.4556.519927201751251567197101141
3-Layer 35kV AAC Tree  Wire
1/07336151751259661791368
2/073761517512510062259411
3/074231517512510532736464
4/074751517512511053447527
266.8195371517512511674473603
336.4196031517512512335535696
397.5196591517512512896399777
477197222017512513627524889
556.5377802017512514208946987
63637835201751251475102601085
79537932201751251572125101278
Expand More
Conductor size No./mmConductor d.c. resistance at 20°CConductor a.c. resistance at 80°CReactance at 50 Hz (460 mm spacing)Continuous current carrying capacityFault current rating kA for 1 sec.*Everday working tensionf kNMaximum working tension (50% MBL) kNMinimum breaking load kNMinimum bending radius mm
Based on 30°C ambientBased on 40°C ambient
Ω/kmΩ/kmΩ/kmStill air1.0 m/s wind2.0 m/s wind


Alloy 6201
7/2.750.7990.9880.3311252102351101852103.51.515.811.6200
7/3.750.430.5320.3121803003451602703106.42.8210.921.7245
7/4.750.2680.3310.29724541046522036541510.34.5217.434.8290
19/3.500.1830.2270.28131551559528046053015.26.6725.751.3340
Alloy 1120
7/2.750.7130.8810.3311302202501151952253.71.494.969.91200
7/3.750.3830.4740.3121903203651702853256.82.648.817.6245
7/4.750.2390.2960.297260430485230385435114.0713.627.1290
19/3.500.1630.2020.28133054562529548556016.26.2620.941.7340
TECHNICAL PERFORMANCE CHARACTERISTICS FOR COVERED CONDUCTORS (CCT)
Conductor size No./mmConductor d.c. resistance at 20°CConductor a.c. resistance at 80°CReactance at 50 Hz (460 mm spacing)Continuous current carrying capacityFault current rating kA for 1 sec.*Everday working tensionf kNMaximum working tension (50% MBL) kNMinimum breaking load kNMinimum bending radius mm
Based on 30°C ambientBased on 40°C ambient
Ω/kmΩ/kmΩ/kmStill air1.0 m/s wind2.0 m/s wind


11 kV Alloy 6201
7/3.750.430.5320.3121852953301652652956.42.8210.921.7285
7/4.750.2680.3310.29724539044022035039510.34.5217.434.8330
19/3.500.1830.2270.28131550056028044550015.26.6725.751.3380
22 kV Alloy 6201













7/3.750.430.5320.3121852853151652552806.42.8210.921.7350
7/4.750.2680.3310.29724537542022033537510.34.5217.434.8395
19/3.500.1830.2270.28131547553028042547515.26.6725.751.3445
33 kV Alloy 6201
7/3.750.430.5320.3121852702951652402656.42.8210.921.7425
7/4.750.2680.3310.29724536040022032035510.34.5217.434.8470
19/3.500.1830.2270.28131545550528040545015.26.6725.751.3520
XLPE covered aerial cables Alloy 1120 conductors
Conductor size No./mmConductor d.c. resistance at 20°CConductor a.c. resistance at 80°CReactance at 50 Hz (460 mm spacing)Continuous current carrying capacityFault current rating kA for 1 sec.*Everday working tensionf kNMaximum working tension (50% MBL) kNMinimum breaking load kNMinimum bending radius mm
Based on 30°C ambientBased on 40°C ambient
Ω/kmΩ/kmΩ/kmStill air1.0 m/s wind2.0 m/s wind


11 kV Alloy 1120
7/2.750.7130.8810.3311302152401151902153.71.494.969.9230
7/3.750.3830.4740.3121903153451702803106.82.648.817.6285
7/4.750.2390.2960.29726()415470230370420114.0713.627.1330
19/3.500.1630.2020.28133052559529547053016.26.2620.941.7380
22 kV Alloy 1120
7/2.750.7130.8810.3311352052251201852003.71.494.969.9300
7/3.750.3830.4740.3121902953301702652956.82.648.817.6350
7/4.750.2390.2960.297260400440230355395114.0713.627.1395
19/3.500.1630.2020.28133050556029545050016.26.2620.941.7445
33 kV Alloy 1120
7/2.750.7130.8810.3311351952151201751903.71.494.969.9385
7/3.750.3830.4740.3121952853151752552806.82.648.817.6425
7/4.750.2390.2960.297260380420230340375114.0713.627.1470
19/3.500.1630.2020.28133048053029543047516.26.2620.941.7520
* Initial temperature 80°C, final temperature 210°C, constant K = 83.0 for alloy 6201 and 88.4 for alloy 1120. f 13% MBL fbr alloy 6201 and 15% MBL for alloy 1120.
Expand More
15kv Overhead Covered Conductor
Cross sectionNo. of wiresConductor dia.Overall DiameterMinimum breaking loadApprox. weightMax. DC-resistance at 20°CAmpacity 90°C
[mm²]
[mm][mm][kgf][kg/km][Ohm/km][A]
3577.113.64641900.868187
5078.214.76632350.641225
70199.716.29283150.443282
951911.51812594000.32345
1201912.919.415915000.253401
1501914.220.719885800.206456
1853716.222.624526950.164525
2403718.424.931828750.125625
3003720.727.1397710700.1721
25kv Overhead Covered Conductor
Cross sectionNo. of wiresConductor dia.Overall DiameterMinimum breaking loadApprox. weightMax. DC-resistance at 20°CAmpacity 90°C
[mm²]
[mm][mm][kgf][kg/km][Ohm/km][A]
3577.115.74642350.868186
5078.216.86633050.641224
70199.718.39283700.443280
951911.520.112594600.32343
1201912.921.515915600.253397
1501914.222.819886500.206450
1853716.224.824527700.164519
2403718.42731829600.125617
3003720.729.3397711550.1712
35kv Overhead Covered Conductor
Cross sectionNo. of wiresConductor dia.Overall DiameterMinimum breaking loadApprox. weightMax. DC-resistance at 20°CAmpacity 90°C
[mm²]
[mm][mm][kgf][kg/km][Ohm/km][A]
70199.725.79286200.443270
951911.527.512597320.32329
1201912.928.915918300.253381
1501914.230.219889370.206432
1853716.232.2245210830.164497
2403718.434.4318212900.125589
3003720.736.7397715020.1674
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