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Cable End Caps - De gasing End Caps De Gassing End Cap
De Gassing End Cap

Insulcap-De-gassing (RV) is Heat Shrinkable End Caps, supplied with Relief Valve (RV) & are used for sealing High Voltage & Extra High Voltage Cables (33 kV & above) to release the constantly evolving gas generated inside the Cable during transportation & storage in hot climate conditions.

Features & Benefits:
  • Provides additional security to Cables by relieving the pressure generated by Residual gases.
  • Automatically releases gas when pressure rises above 3 psi.
  • Eliminates possibility of accidental fire caused due to trapped Methane gas while removing the (normal / non relief valved) End caps.
  • Possibility to reduce the timing of de-gassing (heating) chamber, thereby savings in energy & time.
  • Relief (Non-returnable) valve shall not allow moisture, water, dirt, etc. to enter the cable.
  • Ensures gas / defect free cables, adds customer satisfaction.
  • Each Relief valve is factory tested for gas release.
  • Meets IP 68 (Ingress Protection)
Working of pressure relief valve
De Gassing End Cap

Technical Qualification Report : QR 1011

SELECTION CHART

All dimensions are in mm

  • CODE NO.
  • Ds (Min.)
  • Df (Max.)
  • LS (Min.)
  • Tf(± 10%)
  • CABLE RANGE
  • GEC 102 RV
  • 30
  • 11
  • 75
  • 2.5
  • 12-26
  • GEC 201 RV
  • 40
  • 15
  • 90
  • 3.3
  • 16-35
  • GEC 201 L RV
  • 40
  • 15
  • 120
  • 3.3
  • 16-35
  • GEC 301 RV
  • 55
  • 25
  • 125
  • 3.8
  • 25-47
  • GEC 301 L RV
  • 55
  • 25
  • 170
  • 3.8
  • 25-47
  • GEC 401 RV
  • 75
  • 35
  • 140
  • 4.0
  • 35-68
  • GEC 401 L RV
  • 75
  • 35
  • 180
  • 4.0
  • 35-68
  • GEC 501 RV
  • 100
  • 45
  • 160
  • 4.0
  • 45-90
  • GEC 501 L RV
  • 100
  • 45
  • 200
  • 4.0
  • 45-90
  • GEC 601 RV
  • 130
  • 60
  • 160
  • 4.6
  • 64-120
  • GEC 601 L RV
  • 130
  • 65
  • 300
  • 4.6
  • 67-120
  • GEC 701 RV
  • 154
  • 60
  • 165
  • 4.6
  • 72-145
  • GEC 701 L RV
  • 154
  • 65
  • 300
  • 4.6
  • 70-145
  • GEC 801 RV
  • 230
  • 125
  • 220
  • 4.6
  • 140-200

D : Internal Diameter ; s : as supplied ; f : after free recovery

De Gassing End Caps
TECHNICAL SPECIFICATION
  • PROPERTIES
  • VALUE
  • STANDARD
  • Physical
  •  
  •  
  • Tensile Strength
  • 12 N/mm2 (MPA)(min.)
  • ASTM D638
  • Ultimate Elongation
  • 350% (Min.)
  • ASTM D638
  • Water Absorption
  • 0.2 % (max.)
  • ASTM D570
  • Thermal
  •  
  •  
  • Accelerated Ageing
  • (120oC for 500 Hrs)
  • ASTM D2671
  • Tensile Strength
  • 11 N/mm2 (Mpa) (min.)
  • ASTM D 638
  • Ultimate Elongation
  • 300%(Min.)
  • ASTM D638
  • Heat Shock (250oC for 30 Min.)
  • No Cracking or flowing
  • ESI 09-11
  • Continuous Temperature limit
  • -40oC to + 110oC
  • IEC 216
  • Electrical
  •  
  •  
  • Dielectric Strength
  • 12 KV/mm. (Min.)
  • ASTM D149
  • Volume Resistivity
  • 1 x 1014 Ohm.cm(min.)
  • ASTM D257
  • Dielectric Constant
  • 5 (Max.)
  • ASTM D150
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