3 Data Sheet
Scotch TM 2220
Electrical Stress Control Tape
1. Product Description
ScotchTM 2220 Stress Control Tape changes the
voltage distribution in electrical field surrounding
medium voltage joints or terminations.
2. Applications
Lines of flux are regulated to equalize the
electrical stresses in a controlled manner along
the entire taped joint or termination area where
the shielding has been re-moved.
By changing the electrical field surrounding the
joint or termination, the stress concentration is
reduced from several thousand volts to values
found in continuous cable.
The figures below show the stress concentrations
around three energized cables. Figures Nos. 1, 2
and 3 show, respectively, the stress
concentrations near a cable shield end, a
standard tape stress cone, and a joint or
termination utilizing Scotch 2220 ‘Stress Control
Tape’. The stress concentrations on the insulation
surface are directly proportional to the closeness
of the equipotential lines.
3. Typical Properties*
Colour Grey
Thickness1 0.76 mm
Tensile Strength1 >4.3 MPa
Elongation1 >225%
Dielectric Constant2 25 – 30
Electric Strength3 >13.8 kV/mm
Range of Temperature4
Continuous operating temp. 90°C
Emergency operating temp. 130°C
*These are typical values and should not be used for
specification purposes.
1 IEC 60454-2
2 VDE 0303-4
3 IEC 60243
4 IEC 60085, IEC 60216
4. Installation Technique
The tape shall be applied in half-lapped layers
with very little tension and the silver color side
looking outside.
Follow the appropriate instruction drawings for
joints and terminations.
5. Maintenance
ScotchTM 2220 Tape shall have 5 years shelf life
under normal storage conditions (21° C).
6. Availability
ScotchTM 2200 Tape is available from 3M and
your local 3M authorized electrical distributor.