Switchgear Insulation Products 
Busbar Tubes - BUSTUBE
GSC Series Tubes
GSC Series Tubes
Bustube Application
Application of Heat Shrink Bus Bar Tubes
Bus Tube is heat shrinkable tube designed to insulate busbar systems up to 36KV & to protect against accidental flashover. The tubes are manufactured from high quality non tracking crosslinked polyolefin material. Meets ANSI C37.20.2 standards for MV switchgear application up to 36 KV.
-: FEATURES & BENIFITS :-
- Reduce Busbar clearance.
- Prevent Busbar from chemical corrosion effected by strong acid, alkali, salt etc.
- Solve the problem of insulation among Busbar in Bus Duct.
- Halogen free, flame retardant.
- High dielectric strength.
- Highly Flexible for use on straight or angled bars without creasing.
Technical Qualification Report : QR 1019
SELECTION CHART
Thin Wall Tube [Up to 3.3KV]
- Gala Size
- D
- d
- T (±10% )
- Reel length
- Rectangular Bars (W+B)
- Round Bar Ø
- mm(min.)
- mm(max.)
- mm
- mtrs.
- Min.
- max.
- Min.
- max.
- GSC 16/8
- 16
- 8
- 0.69
- 100
- 16
- 18
- 10
- 12
- GSC 20/10
- 20
- 10
- 0.78
- 100
- 22
- 25
- 14
- 16
- GSC 30/15
- 30
- 15
- 0.86
- 50
- 33
- 38
- 21
- 24
- GSC 40/20
- 40
- 20
- 0.96
- 50
- 44
- 52
- 28
- 33
- GSC 50/25
- 50
- 25
- 0.96
- 25
- 53
- 65
- 34
- 41
- GSC 60/30
- 60
- 30
- 0.96
- 25
- 64
- 75
- 41
- 48
- GSC 70/35
- 70
- 35
- 1.10
- 25
- 72
- 90
- 46
- 57
- GSC 80/40
- 80
- 40
- 1.27
- 25
- 86
- 100
- 55
- 64
- GSC 100/50
- 100
- 50
- 1.40
- 25
- 104
- 125
- 66
- 80
- GSC 120/60
- 120
- 60
- 1.40
- 25
- 110
- 150
- 70
- 96
- GSC 150/75
- 150
- 75
- 1.40
- 25
- 151
- 190
- 96
- 121
- GSC 180/90
- 180
- 90
- 1.50
- 25
- 179
- 236
- 114
- 150
Medium Wall Tube [upto 24KV]
- Gala Size
- D
- d
- T (±10% )
- Reel length
- Rectangular Bars (W+B)
- Round Bar Ø
- mm(min.)
- mm(max.)
- mm
- mtrs.
- Min.
- max.
- Min.
- max.
- GMB 16/6
- 16
- 6
- 1.70
- 30
- 11
- 18
- 7
- 12
- GMB 25/10
- 25
- 10
- 2.10
- 25
- 16
- 30
- 10
- 20
- GMB 30/12
- 30
- 12
- 2.10
- 25
- 25
- 38
- 16
- 25
- GMB 40/16
- 40
- 16
- 2.5
- 25
- 33
- 50
- 21
- 32
- GMB 50/20
- 50
- 20
- 2.10
- 25
- 38
- 63
- 24
- 40
- GMB 65/25
- 65
- 25
- 2.20
- 25
- 53
- 82
- 34
- 52
- GMB 75/28
- 75
- 28
- 2.50
- 25
- 63
- 94
- 40
- 60
- GMB 85/32
- 85
- 32
- 2.50
- 25
- 69
- 107
- 44
- 68
- GMB 100/38
- 100
- 38
- 2.50
- 25
- 83
- 126
- 53
- 80
- GMB 120/45
- 120
- 45
- 2.50
- 15
- 104
- 150
- 66
- 96
- GMB 150/60
- 150
- 60
- 2.50
- 25
- 132
- 200
- 84
- 127
- GMB 180/72
- 180
- 72
- 2.50
- 15
- 151
- 226
- 96
- 144
- GMB 205/85
- 210
- 84
- 2.50
- 1.5
- 239
- 257
- 152
- 164
- GMB 250/100
- 250
- 100
- 3.0
- 1.5
- 264
- 314
- 168
- 200
Heavy Wall Tube [upto 36KV]
- Gala Size
- D
- d
- T (±10% )
- Reel length
- Rectangular Bars (W+B)
- Round Bar Ø
- mm(min.)
- mm(max.)
- mm
- mtrs.
- Min.
- max.
- Min.
- max.
- GHB 25/10
- 25
- 10
- 3.20
- 25
- 20
- 28
- 13
- 20
- GHB 30/12
- 30
- 12
- 3.50
- 25
- 28
- 33
- 18
- 25
- GHB 40/16
- 40
- 16
- 3.50
- 25
- 35
- 45
- 22
- 32
- GHB 50/20
- 50
- 20
- 3.50
- 25
- 45
- 54
- 29
- 40
- GHB 65/25
- 65
- 25
- 3.50
- 25
- 50
- 62
- 32
- 43
- GHB 75/28
- 75
- 28
- 3.50
- 20
- 53
- 69
- 34
- 47
- GHB 85/32
- 85
- 32
- 3.50
- 20
- 69
- 100
- 44
- 68
- GHB 100/38
- 100
- 40
- 3.70
- 20
- 83
- 102
- 53
- 72
- GHB 120/45
- 120
- 58
- 3.70
- 15
- 94
- 125
- 60
- 85
- GHB 150/60
- 150
- 60
- 3.70
- 15
- 122
- 168
- 78
- 105
- GHB 180/70
- 180
- 70
- 3.70
- 15
- 160
- 196
- 102
- 125
- GHB 205/85
- 205
- 85
- 3.70
- 1.5
- 239
- 250
- 152
- 164
- GHB 250/120
- 250
- 120
- 4.20
- 1.5
- 264
- 314
- 168
- 200
TECHNICAL SPECIFICATION
- TEST DESCRIPTION
- RECORDED VALUE
- TEST METHOD
- Physical
- Tensile Strength
- 9 N/mm2 (MPA)(min.)
- ASTM D638
- Ultimate Elongation
- 350% (Min.)
- ASTM D638
- Water Absorption
- 0.5 % (max.)
- ASTM D570
- Density
- 1.20 ± 0.2 gm/cm3
- ASTM D792
- Hardness
- 45 ± 10 Shore D
- ASTM D2240
- Thermal
- Accelerated Ageing
- (150oC for 1200 Hrs)
- ASTM D2671
- Tensile Strength
- 7.7 N/mm2 (Mpa) (min.)
- ASTM D 638
- Ultimate Elongation
- 300%(Min.)
- ASTM D638
- Low temperature Flexibility (-40oC for 4 Hrs.)
- No Cracking
- ASTM D2671
- Heat Shock (250oC for 30 Min.)
- No Cracking or flowing
- ESI 09-11
- Shrink Temperature
- 125oC
- IEC 216
- Continuous Temperature limit
- -40oC to + 115oC
- IEC 216
- Electrical
- Dielectric Strength
- 22 KV/mm. (Min.)
- ASTM D149
- Volume Resistivity
- 1 x 1013 Ohm.cm(min.)
- ASTM D257
- Dielectric Constant
- 5 (Max.)
- ASTM D150
- Resistant to track & erosion
- No Tracking, erosion or flame failure upto 3.25 KV for 20 min.
- ASTM D2303
CLEARANCES WITH INSULATION
- Voltage
- Medium wall Tube (GMB)
- Heavy Wall Tube (GHB)
- UN-Insulated Bus bars
- Ph. To Ph.
- Ph. to gr.
- Ph. To Ph.
- Ph. to gr.
- 12KV
- 65
- 75
- 35
- 45
- 120
- 17.5 KV
- 85
- 105
- 55
- 65
- 160
- 24 KV
- 115
- 150
- 70
- 100
- 220
- 36 KV
- 200
- 285
- 140
- 190
- 320
Products
Heat Shrink Tubes / Heat Shrink Sleeves
- Advantages Of Heat shrink Tubing
- Thin Wall Tubes
- GDW : Dual Wall Tubing
- Medium/Heavy Wall Tubes-Commercial
- Heat Shrink Co-extruded Tubing Premium Quality
- Red Insulation Tubes
- Non Tracking Tubes
- Busbar Sleeves
- Stress Control Tube
- Integrated Stress Control Tube-GVOT Tube
- Heat Shrink Double Layer Tube-GDTL Tube
