Heat Shrinkable Tubes/Heat Shrink Sleeves 
Heat Shrink Bus Bar Sleeve
GSC Series Tubes
GMB/GHB Series Tubes
Bustube Application
Application of Heat Shrink Bus Bar Tubes
Gala 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 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 | 25 | 11 | 18 | 7 | 12 |
| GMB 25/10 | 25 | 10 | 2.50 | 25 | 16 | 30 | 10 | 20 |
| GMB 30/12 | 30 | 12 | 2.10 | 25 | 25 | 38 | 16 | 25 |
| GMB 40/16 | 40 | 16 | 2.10 | 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 | 25 | 104 | 150 | 66 | 96 |
| GMB 150/60 | 150 | 60 | 2.50 | 20 | 132 | 200 | 84 | 127 |
| GMB 180/72 | 180 | 72 | 2.50 | 20 | 151 | 226 | 96 | 144 |
| GMB 205/85 | 210 | 84 | 2.50 | 1.5 | 239 | 257 | 152 | 164 |
| GMB 250/100 | 250 | 100 | 3.00 | 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 25/8 | 25 | 8 | 3.20 | 25 | 20 | 28 | 13 | 20 |
| GHB 30/12 | 30 | 12 | 3.50 | 25 | 28 | 33 | 18 | 25 |
| GHB 40/16 | 43 | 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 | 20 | 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
- 300% (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
- (120oC for 500 Hrs)
- IEC 60684-2
- Tensile Strength
- 8 N/mm2 (Mpa)
- ASTM D 638
- Ultimate Elongation
- 250 % (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 1014 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 Shrinkable Moulded Shapes
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
- High Shrink Ratio Heat Shrink Tube
Switchgear Insulation Products
- Barrier Board Sheet
- End Sealing Kit for Extensible RMU/GIS Bushing
- Heat Shrink Bus Bar Sleeve
- Bus Bar Insulating Shrouds
- Bus Bar Insulating Shrouds Polyolefin
- Bus Bar End Caps
- Thin wall tube wire marking
- Heat Shrink Tape (Bustape)
- Insulation for Circuit Breakers
- Busbar Sleeve for 66 kV
- Bushing Boot
- Non Shrinkable High Voltage Tape
- Heat Shrinkable Gland
