Heat Shrinkable Moulded Shapes
Cold Shrink De Gassing Caps
Cold Shrink De-gassing 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
transportaon &
storage in hot climate condions.
Features & Benefits:
- Provides additional security to Cables by relieving
the pressure generated by Residual gases.
- Automatically releases gas when pressure rises above
1 psi.
- Eliminates possibility of accidental fire caused due
to trapped Methane gas while removing the
(normal / non relief valved) Endcaps.
- Possibly 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.
Working of pressure relief valve
Technical Qualification Report : QR 1011
SELECTION CHART
- Code No.
- Ds (min.)
- Df (max.)
- Lf (min.)
- Tf (min.)
- Application Range
- GCCS -01 RV
- 25
- 12
- 60
- 3.3
- 13 - 20
- GCCS -02 RV
- 35
- 16
- 75
- 3.4
- 17 - 30
- GCCS -03 RV
- 45
- 22
- 80
- 3.4
- 23 - 38
- GCCS -04 RV
- 55
- 22
- 80
- 3.4
- 23 - 48
- GCCS -05 RV
- 90
- 45
- 100
- 3.4
- 46 - 80
* All dimensions are in mm. | D :
Body Diameter | d : Finger Diameter | s
: As Supplied | f : After Free Recovery
TECHNICAL SPECIFICATION
- Properties
- Test Methods
- Typical Value
- Tensile
Strength
- ASTM D-412
- 6.0 MPa
(min)
- Ultimate
Elongation
- ASTM D-412
- 400% (min)
- Tear
Strength
- ASTM D-624
- 25.0 KN/m
(min)
- Volume
Resistivity
- ASTM D-257
- 1 x
1012 Ohm. cm (min.)
- Fungus
Resistance
- ASTM G-21
- 28 Days
exposure no growth
- Hardness
- ASTM D2240
- 40 ±
10 Shore A
- Dielectric
Strength
- ASTM D149
- 18.0 kV/mm
(min)