© 2000,2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All Rights Reserved. Customer Drawing
TE Connectivity
305 Constitution Drive
Menlo Park, CA 94025 USA
Raychem
Tubing
Title: SCT
Splice Cover Dual Wall
Heat-Shrinkable Tubing
TE Connectivity reserves the right to amend this drawing at any
time. Users should evaluate the suitability of the product for their
application
Document No :
SCT
Cage Code:
06090
Scale:
None Size:
A Rev. Date:
15-Apr-11
Rev.:
J1
Sheet:
1 of 3
Print Date: 18-Apr-11 If this document is printed it becomes uncontrolled. Check for the latest revision.
SCT
Splice Cover (Dual Wall)
Heat-Shrinkable Tubing
Table 1: Dimensions (mm/inches)
As Supplied As Recovered
Size
Minimum
Expanded I.D.
(D)
Maximum
Recovered I.D.
(d)
Recovered Total
Wall
(W)
Minimum Recovered
Adhesive Wall
(W1)
No.1 7.62 (0.300) 1.65 (0.065) 1.52 (0.060) ± 0.30 (0.012)
0.76 (0.030)
No.2 9.02 (0.355) 2.29 (0.090) 1.52 (0.060 )± 0.30 (0.012)
0.76 (0.030)
No.3 11.56 (0.455) 2.54 (0.100) 2.29 (0.090) ± 0.30 (0.012)
1.40 (0.055)
No.4 17.78 (0.700) 4.45 (0.175) 2.54 (0.100) ± 0.30 (0.012)
1.52 (0.060)
No.5 27.94 (1.100) 8.38 (0.330) 2.54 (0.100) ± 0.30 (0.012)
1.52 (0.060)
Color: Jacket shall be black; adhesive liner shall be amber. Marking is SCT-1, SCT-2, SCT-3, SCT-4, SCT-5
Customer Drawing
Rev. Date:
15-Apr-11
Rev.:
J1
Document No.
SCT
Sheet:
2 of 3
Print Date: 18-Apr-11 If this document is printed it becomes uncontrolled. Check for the latest revision.
Table 2: Properties
Property Unit Requirements Test Method
Dimensions Inches Table 1 ASTM D 2671
Tensile Strength PSI 1500 minimum ASTM D 2671
Ultimate Elongation Percent 300 minimum ASTM D 2671
Speed 2 in./min.
Note 1
Secant Modulus
(Expanded Tubing)
PSI 35000 minimum ASTM D 2671
Speed 2 in./min.
Longitudinal Change Percent +0 to -10 ASTM D 2671
Note 1
Concentricity
(Expanded Form)
Percent 60 minimum ASTM D 2671
Dielectric Strength*
(Jacket Only)
Volts/mil 500 minimum ASTM D 149
Volume Resistivity Ohm-cm 1013 minimum ASTM D 257
Immersion Leak Resistance Micro-amps 0.25 maximum Note 2
Thermal Cycling
25 cycles
-40°C to 135°C, followed by:
Immersion Leak Resistance,
Note 2.
Micro-amps 0.25 maximum Note 3
Heat Shock
4 hrs @ 250°C
-- No dripping, flowing or
cracking of jacket
ASTM D 2671
Thermal Aging
1000 hrs @ 150°C, followed by:
Immersion Leak Resistance,
Note 2.
Micro-amps 0.25 maximum Note 4
Fluid Resistance
24 hrs. @ 25 ± 3°C
ASTM Reference Fuel C
VV-F-800 Diesel Fuel
24 hrs @ 100 ± 3°C
ASTM #3 Oil
Followed by: Immersion Leak
Resistance, Note 2.
Micro-amps 0.25 maximum Note 5
Qualification Sizes: SCT-2 qualifies SCT-1, SCT-2 and SCT-3
SCT-4 qualifies SCT-4 and SCT-5
Note 1: Tensile Strength & Secant Modulus
Calculate Tensile Strength and Secant Modulus based on wall thickness of jacket only
Customer Drawing
Rev. Date:
15-Apr-11
Rev.:
J1
Document No.
SCT
Sheet:
3 of 3
Print Date: 18-Apr-11 If this document is printed it becomes uncontrolled. Check for the latest revision.
Note 2: Immersion Leak Resistance
A) Size SCT-2
Prepare 3 test assemblies insulated with SCT-2 as follows:
Construct a 2-wire to 2-wire inline splice in any suitable manner (crimped, soldered, twisted
or welded). Splice an AWG 18 and an AWG 14 to an AWG 20 and AWG 14. Each wire
shall be approximately 12 inches long. The wire insulation shall be cross-linked polyolefin
and the conductor shall be bare copper. Shrink a 2-inch length of SCT-2 over the splice area
with an appropriate heat gun. Apply heat until the SCT-2 is completely recovered on the
splice and the adhesive liner flows at both ends. Allow the test assemblies to cool to room
temperature and immerse them, except for the ends, in a 5% salt solution for 24 hours at
room temperature. Apply 50 volts DC to the immersed specimens and measure the current
leakage.
B) Size SCT-4
Prepare 3 test assemblies with SCT-4 as follows:
Construct a 3-wire to 3-wire to 3-wire inline splice in any suitable manner (crimped, soldered,
twisted or welded). Splice three AWG 12 wires to three AWG 12 wires. Each wire shall be
approximately 12 inches long. The wire insulation shall be cross-linked polyolefin and the
conductor shall be bare copper. Shrink a 3-inch length of SCT-4 over the splice area with an
appropriate heat gun. Apply heat until the SCT-4 is completely recovered on the splice and
the adhesive liner flows at both ends. While the assembly is still hot from the recovery
process, press the ends of the SCT-4 together where the wires emerge. Using parallel jaw
pliers, align the wires and assure that they are completely coated with adhesive. Allow the
test assemblies to cool to room temperature and immerse them, except for the ends in a 5%
salt solution for 24 hours at room temperature. Apply 50 volts DC to the immersed specimens
and measure the current leakage.
Note 3: Thermal Cycling
Prepare 3 splice assemblies in accordance with Note 2 and subject them to 25 thermal
cycles. One cycle consists of 30 minutes at -40°C and 30 minutes at 135°C with a maximum
of 5 minutes between temperatures. Specimens shall be allowed to cool to room temperature
for one hour minimum and shall be measured for current leakage in accordance with Note 2.
Note 4: Thermal Aging
Prepare 3 splice assemblies in accordance with Note 2 and heat for 1000 hrs at 150°C.
Specimens shall be allowed to cool to room temperature for one hour minimum and shall be
measured for current leakage in accordance with Note 2.
Note 5: Fluid Resistance
Prepare 9 splice assemblies in accordance with Note 2 and immerse 3 assemblies in each of
the fluids specified for 24 hours at the specified temperature. Measure current leakage in
accordance with Note 2.
Acceptance tests shall consist of:
Dimensions
Tensile Strength
Ultimate Elongation
Heat Shock
Qualification tests shall consist of all the tests in this Customer Drawing
