Extra Heavy Wall Heat Shrink Busbar Sleeve 6.2 mm Wall (GEHB)

About Extra Heavy Wall Heat Shrink Busbar Sleeve 6.2 mm Wall (GEHB)

GEHB is the thickest grade in Gala's busbar sleeve range. Where the heavy-wall GHB grade has a 3.2 to 3.8 mm wall after recovery, GEHB recovers to 6.2 mm, giving the most insulation and mechanical protection Gala offers on a busbar.

It is a cross-linked polyolefin tube supplied expanded in 1500 mm lengths. Heated on the bar, it shrinks into a close-fitting, continuous cover that protects against accidental flash-over and against corrosion by acid, alkali and salt, and that bends with angled bars without creasing.

Five sizes are offered, from GEHB 50/20 to GEHB 150/60. The first figure is the minimum inside diameter as supplied, the second the maximum inside diameter after recovery; ask Gala for the matching busbar range for your bar section.

Installation is the same as for the rest of the range: preheat the bar, slide the sleeve on and shrink it with a torch from one end, or shrink it in an air-circulating oven at 120 to 150 deg C for 10 to 15 minutes (never less than 5). Trim the ends and drill holes after the bar has cooled.

Gala rates its busbar sleeves for systems up to 36 kV; contact Gala to discuss the application before ordering this grade.

Manufactured by Gala in India. Datasheet and size selection on request.

Specifications

• Brand: Gala
• Product type: Extra heavy wall heat shrink busbar sleeve
• Material: Cross-linked polyolefin
• Colour: Brick red
• Voltage rating: Up to 36 kV
• Operating temperature: -40 deg C to +105 deg C continuous
• Size range: GEHB 50/20 to GEHB 150/60 (supplied ID 50 to 150 mm, recovered ID 20 to 60 mm)
• Wall type / thickness: Extra heavy wall, 6.2 mm after recovery (+/-10%)
• Standards tested to: Test methods quoted on Gala's sheet - ASTM D638, ASTM D570, ASTM D792, ASTM D2240, ASTM D2671
• Application: Busbar insulation in switchgear, bus ducts and substations where a thick insulating wall is wanted
• Installation: Torch (preheat bar, shrink from one end) or air-circulating oven at 120 to 150 deg C
• Country of origin: India
• Shrink temperature: 125 deg C
• Tensile strength: 12 N/mm2 min
• Elongation at break: 300% min
• Density: 1.20 +/- 0.2 g/cm3
• Hardness: 45 +/- 10 Shore D
• Water absorption: 0.5% max
• Length: 1500 mm per piece

Sizes

• GEHB 50/20 | D 50 / d 20 | T 6.2 mm | 1500 mm
• GEHB 75/28 | D 75 / d 28 | T 6.2 mm | 1500 mm
• GEHB 100/38 | D 100 / d 38 | T 6.2 mm | 1500 mm
• GEHB 120/45 | D 120 / d 45 | T 6.2 mm | 1500 mm
• GEHB 150/60 | D 150 / d 60 | T 6.2 mm | 1500 mm
• No busbar ranges are published for GEHB.

Applications: Switchgear manufacturers, substations, bus duct makers, power utilities, heavy industry electrical contractors