3
Data Sheet
Scotch
TM
2220
3. Typical Properties*
Colour
Thickness
1
Tensile Strength
1
Elongation
1
Dielectric Constant
2
Electric Strength
3
Range of Temperature
4
Continuous operating temp.
Emergency operating temp.
Grey
0.76 mm
>4.3 MPa
>225%
25 – 30
>13.8 kV/mm
Electrical Stress Control Tape
1. Product Description
Scotch
TM
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.
90°C
130°C
*These are typical values and should not be used for
specification purposes.
1
2
IEC 60454-2
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
Scotch
TM
2220 Tape shall have 5 years shelf life
under normal storage conditions (21° C).
6. Availability
Scotch
TM
2200 Tape is available from 3M and
your local 3M authorized electrical distributor.
Scotch 2220 – Data Sheet
IMPORTANT NOTICE
All statements, technical information and
recommendations related to the Seller’s products
are based on information believed to be reliable,
but the accuracy or completeness thereof is not
guaranteed. Before utilizing the product, the user
should determine the suitability of the product for
its intended use. The user assumes all risks and
liability whatsoever in connection with such use.
Any statements or recommendations of the Seller
which are not contained in the Seller’s current
publications shall have no force or effect unless
contained in an agreement signed by an
authorized office of the Seller.
The statements contained herein are made in lieu
of all warranties, expressed or implied, including
but not limited to the implied warranties of
merchantability and fitness for a particular
purpose which warranties are hereby expressly
disclaimed.
SELLER SHALL NOT BE LIABLE TO THE USER
OR ANY OTHER PERSON UNDER ANY LEGAL
THEORY; INCLUDING BUT NOT LIMITED TO
NEGLIGENCE OR STRICT LIABILITY; FOR ANY
INJURY OR FOR ANY DIRECT; INDIRECT;
INCIDENTAL OR CONSEQUENTIAL DAMAGES
SUSTAINED OR INCURRED BY REASON OF
THE USE OF ANY OF THE SELLER’S
PRODUCTS.
3
Electro Product Division
Carl-Schurz-Straße 1
D-41453 Neuss
Germany
Tel: +49 2131 – 14 0
Fax: +49 2131 – 14 3897
3
2003
Issue: 1
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