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Switchgear Insulation Products

Bushing Boot - BUSHINGBOOT

Bushing Boots are non-tracking elastomeric insulating boots which are used in conjunction with terminations. They fit over the bushings of switchgear, insulating the area between the cable connector in either right angled or straight bushing connections. They are designed to enhance the phase-to-phase and phase-to-earth insulation. The boots can be used up to 25 KV application & protect against flashover or surges induced in switchgear & transformer boxes.

TECHNICAL SPECIFICATION
  • PROPERTIES
  • VALUE
  • STANDARD
  • Physical
  •  
  •  
  • Tensile Strength
  • 12 N/mm2
  • ASTM D638
  • Ultimate Elongation
  • 300% (Min.)
  • ASTM D638
  • Longitudinal Change
  • -10% (Max.)
  • ASTM D2671
  • Hardness
  • 45 ± 10 Shore D
  • ASTM D2240
  • Water Absorption
  • 0.5 % (max.)
  • ASTM D570
  • Thermal
  •  
  •  
  • Accelerated Ageing
  • (120°C for 500 Hrs)
  • ASTM D2671
  • Tensile Strength
  • 11 N/mm2 (Mpa) (min.)
  • ASTM D 638
  • Ultimate Elongation
  • 300 % (Min.)
  • ASTM D 638
  • 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
  • >125°C
  • IEC 216
  • Continuous Temperature limit
  • -40°C to + 110°C
  • IEC 216
  • Electrical
  •  
  •  
  • Dielectric Strength
  • 12 KV/mm. (Min.)
  • ASTM D149
  • Volume Resistivity
  • 1 x 1014 Ohm.cm(max..)
  • ASTM D257
  • Dielectric Constant
  • 5 (Max.)
  • ASTM D150
  • Chemical
  •  
  •  
  • Fungus Resistance
  • less than 1
  • ASTM G-21
  • Salt Spray test
  • No pitting / no corrosion
  • ASTM B-17
  • Chemical Resistance
  • Good
  •  
  • immersion in following liquids
  • no visual defects
  •  
  • NaoH (40%), H2so4 (3%)
  •  
  •  
  • Toluence, Acetone for 24 hours
  •  
  •  
  • at room temp.
  •  
  •  
SYSTEM SPECIFICATION
  • Test Item
  • Parameter
  • Requirements
  • Result
  • AC Withstand
  • 5 min at 55 KV
  • No Flashover
    No Breakdown
  • Pass
  • Impulse voltage withstand
  • 10 + & 10- impulses at 125 KV
  • 7No Flashover
    No Breakdown
  • Pass
Bushing Boot - BUSHINGBOOT

Bellows are used in low voltage switchgear & transformer industry for cable ducting. They are made from high quality flexible PVC (Polyvinyl Chloride) material. The bellows are available in different shapes and sizes to suit for different applications with matching mounting options.

STANDARDS :

Tested to ANSI C 37.20.2 Standards for medium voltage switchgear application upto 36KV.

  • Provides good Electrical & Thermal Insulation.
  • High insulation properties & good flame retardant properties.
  • Increases the service life of stand-by & emergency equipment.
  • Reduces maintenance cost with less distribution interruptions.
  • Safe and mandatory in developed countries.
  • Available in COLOUR OF YOUR CHOICE
TECHNICAL SPECIFICATION
  • TEST DESCRIPTION
  • RECORDED VALUE
  • TEST METHOD
  • Dielectric Strength
  • 12 KV / mm. (min.)
  • ASTM D149
  • Tensile strength
  • 12 N/mm2 (min.)
  • ASTM D638
  • Elongation
  • 350% (min.)
  • ASTM D638
  • Density
  • 1.23 gm/cm3
  • ASTM D792
  • Hardness
  • 65 ± 5 shore A
  • ASTM D2240
  • Continuous Operating Temp.
  • -20°C to 115°C
  • IEC 216
  • Flammability
  • Pass
  • UL 94-V0
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