Cold Shrink QS-III
Three-Conductor Splice Kit for use on
Armor and Non-Armor Cables
Instructions
IEEE Std. 404
35 kV Class
250 kV BIL
* Splices (including size transitions) can be made to smaller or larger conductors, provided
both cables are within the Insulation O.D. Range and the connector meets the dimensional
requirements shown below.
Connector Dimensional Requirements
Minimum Maximum
inches (mm) inches (mm)
Outside Diameter 0.51" (13,0 mm) 1.70" (43,2 mm)
Length
Aluminum (Al/Cu) ------ 6.00" (152 mm)
Length
Copper (Cu) ------ 6.50" (165 mm)
Cable Range Requirements
Kit Number Cable Insulation Conductor
O.D. Range Size Range
5797A-MT 1.07" to 1.70" 1/0 AWG - 350 kcmil*
(27,2 mm to 43,2 mm) (60 - 185 mm
2
)
3M™Cold Shrink
QS-III Splicing Kit
5797A-MT
78-8126-0432-6-A
CAUTION
Working around energized high-voltage systems may cause serious
injury or death. Installation should be performed by personnel familiar
with good safety practice in handling high-voltage electrical equipment.
De-energize and ground all electrical systems before installing product.
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Contents
1.0 Kit Contents ............................................................................................................................................3
2.0 Prepare Cable ..........................................................................................................................................3
3.0 Place Components on Cable ..................................................................................................................5
4.0 Install Splice ............................................................................................................................................6
5.0 Install Armor Continuity (if cable is armored) ......................................................................................8
6.0 Install Splice Jacket ................................................................................................................................9
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78-8126-0432-6-A
1.0 Kit Contents:
1.1 Kit Contents are as follows:
3 ..............Cold Shrink 5467A QS-III Silicone Splice Bodies
6 ..............Tubes, P55/R Red Compound
3 ..............Metallic Shield Sleeves
6 ..............Constant Force Spring Shield Connectors (1.31" I.D.)
2 ..............Constant Force Spring Shield Connectors (1.54" I.D.)
1 ..............Armor to Armor Continuity Braid
2 ..............Cold Shrink Jacket Tubes
1 ..............3M
™
CC-2 Cable Preparation Kit
1 ..............Roll, Scotch
™
33+ Vinyl Electrical Tape (3/4" x 66')
5 ..............Rolls, Scotch
™
Super 88 Vinyl Electrical Tape (1 1/2" x 44')
4 ..............Rolls, Scotch-Seal
™
2229 Mastic Tape (3 3/4" x 10')
1 ..............Roll, Scotch
™
24 Electrical Shielding Tape (1" x 15')
1 ..............Roll, Scotch
™
2228 Rubber Mastic Tape (2" x 10')
6 ..............Rolls, Armorcast
™
Structural Material (4" x 15')
6 ..............Cold Shrink Adapter Tubes (3 white core and 3 red core)
1 ..............Instruction Sheet
6 ..............Copper Foil Tape (1/2" x 10")
12 ............Gloves
2.0 Prepare Cable
2.1 Prepare the cable according to your company's
standard procedures. Allow cable ends to overlap as
much as 10" (254 mm).
Remove 33" (838 mm) of cable jacket, plus half of
the overlap from Cable X.
Remove 25" (635 mm) of cable jacket, plus half of
the overlap from Cable Y.
Keep a 22" (559 mm) piece of cable jacket removed
from Cable X and a 14" (356 mm) piece of jacket
from Cable Y for use later in these instructions.
2.2 If cable is armored, remove cable armor leaving
1 1/2" (37 mm) armor exposed beyond jacket end.
Remove cable binder , if present, at the end of the
jacket or armor and discard.
Fold cable fillers and ground wire(s) back over
cable jacket end. Do not cut off.
Temporarily hold the fillers and ground wire(s) back
by banding them to the cable jacket using Scotch
™
33+ vinyl tape.
Cable Y
25" (635 mm)
Cable X
33" (838 mm)
remove
binder
fold fillers back
DO NOT CUT OFF
1 1/2"
(37 mm)
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78-8126-0432-6-A
2.3 Cut the phase cores to the appropriate length.
Cores of Cable X should be 33" (838 mm) when
measured from the cable jacket end or 31 1/2"
(800 mm) when measured from end of the armor.
Cores of Cable Y should be 25" (635 mm) when
measured from the cable jacket end or 23 1/2"
(597 mm) when measured from end of the armor.
2.4 Bind the metallic shields of both Cable X and
Cable Y cores with a copper tape strip at a point
11 1/2" (292 mm) from the end of each conductor.
Remove the metallic shields to the copper tape
binding.
If the phase cores are individually jacketed, remove
the individual jackets a distance of 15" (381 mm)
from the end of each conductor.
Cable X 33" (838 mm)
Cable Y 25" (635 mm)
copper
tape strips
8 1/2" (216 mm)
11 1/2" (292 mm)
field determine
2.5 Remove cable semi-conductive insulation screen
from cores of both Cable X and Cable Y for
a distance of 8 1/2" (216 mm) from the end of each
conductor.
Note: Cables must be within Insulation O.D. range of
the splice kit.
2.6 Remove cable insulation from conductors ends of
both Cable X and Cable Y.
Remove cable insulation for 1/2 connector length plus
an allowance * for increases in connector length due
to crimping. Insulation removal length shall not
exceed 3 1/4" (83 mm) from conductor end.
Do not install connectors now.
*Note: This assumes that the installer has determined
the increased length of an aluminum connector
crimped with a specific tool and die.
Aluminum Typical Growth
Connector Size allowance per end
1/0 AWG 1/8" (3 mm)
2/0 AWG 1/8" (3 mm)
3/0 AWG 1/8" (3 mm)
4/0 AWG 1/4" (6 mm)
250 kcmil 1/4" (6 mm)
350 kcmil 1/4" (6 mm)
Notes: 1. Copper connectors do not require a length
change allowance.
2. Maximum aluminum connector crimped length
allowed is 6.50" (165 mm).
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3.0 Place Components on Cable
3.1 Slide one large cold shrink jacket tube onto
Cable X and one onto Cable Y with the loose
core ribbon ends going on the cable last, extending
toward the cable ends.
3.2 Slide a 3M
™
cold shrink splice body onto each
core of Cable X with the loose core ribbon
end going on the cable first, away from cable end.
3.3 Expand metallic shield sleeves and slide one onto
each core of Cable Y. Compress the ends of each
shield sleeve together next to the cable armor or
jacket, away from the prepared conductor ends.
3.4 For 1/0 through 3/0 AWG connectors, or
connectors with an O.D. between 0.51–0.76"
(13,0–19,3 mm): Slide the cold shrink adapter tube
with the WHITE CORE onto the insulation with the
loose core ribbon end going on first, away from the
cable end.
For 4/0 AWG through 350 kcmil connectors or
connectors with an O.D. between 0.68–1.07"
(17,3–27,2 mm): Slide the cold shrink adapter tube
with the RED CORE onto the insulation with the
loose core ribbon end going on first, away from the
cable end.
loose core ribbon end
splice body
loose core ribbon end
shield
sleeve
adapter tube
large jacket tube
loose core
ribbon end
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4.0 Install Splice
4.1 Install connectors. See Table on front cover of
this instruction for proper connector dimensions.
Crimp connectors per recommendations from
connector manufacturer. For standard 3M
™
connectors, refer to the table at the end of this
instruction for crimping information.
4.2 Apply a tape marker to core semi-con insulation
screens of Cable Y (cable side which does not
contain splice body) at a distance of 10"
(254 mm) measured from the CENTER of
connectors.
4.3 Position cold shrink copper connector adapter over
CENTER of connector. Shrink the adapter near
center of connector by pulling and unwinding the
loose core ribbon end in a counter-clockwise
direction.
4.4 Remove any excess oxidation inhibitor from
connector ends if aluminum connectors are used.
Clean cable using standard practice:
a. Do not use solvent or abrasive on cable
semi-conductive insulation shield.
b. If abrasive is used on cable insulation, do not
reduce diameter below the 1.07" (27,2 mm)
minimum specified for the splice.
10" (254 mm)
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4.5 Apply red compund on cable insulation, making
certain to fill in edges of cable semi-cons.
Note: DO NOT use silicone grease.
4.6 Position each splice body over the connector and
align the leading end of the rubber part with the
center of the marker tape.
Slowly begin to remove the inner support core by
pulling, while unwinding, the loose ribbon end in a
counterclockwise direction. Allow only 1/4"
(6 mm) of the splice to shrink onto the marker tape.
Carefully slide the splice body off the marker tape
until its leading edge is aligned with the marker tape
edge. Continue removing the core to complete splice
body installation.
Note: The splice body ends must overlap onto the
semi-conducting layer of each cable by at least
1/2" (12,7 mm).
Note: DO NOT push the splice body towards the tape
marker, as this may cause the end to roll under. If
the end does roll under, DO NOT use sharp edged
tools to pull it out as this could cut and damage
the splice.
4.7 Apply copper shield sleeves:
a) Center one shield sleeve over each splice body.
b) Starting at center, form sleeves to splice bodies
using vinyl tape bands.
4.8 Connect sleeve ends to the cable metallic shield
with constant force springs.
Install each spring by unwrapping and rewrapping
the spring around itself over the shield sleeve end and
cable metallic shield.
Trim off excess shield sleeve braid material.
Cover springs and trimmed shield sleeve ends with
one half-lapped layer of vinyl tape.
Red P55/R
compound
vinyl tape bands
align end of splice body to
marker tape
trim off excess sleeve
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78-8126-0432-6-A
5.0 Install Armor Continuity (If Cable is Armored)
4.10 Unfold the cable fillers and reestablish their lay
between the cable phase cores. Hold the fillers in
place with a band of 33+ vinyl tape.
4.9 Connect the ground wire(s) from Cable X to the
ground wire(s) from Cable Y. Make the connection
away from the splice bodies.
33+ vinyl tape
connect ground wire(s)
5.1 Apply multiple wraps of Scotch™24 shielding tape
around the exposed armor on both Cable X and
Cable Y to fill a valley in the corrugated armor. Half
hitch to tie off.
5.2 Wrap an end of the ground continuity braid around
exposed armor and applied 24 tape on one cable end.
Wrap one wrap only and fold the braid at 90°with
the long braid end extending toward splice opening.
Install a large constant force spring around the
braid wrapped on the armor. Spiral wrap the braid
around the splice opening to the other cable armor.
Fold the braid 90°and wrap braid end around armor.
Wrap braid end for one wrap only. Cut off and
discard excess braid.
Connect braid by installing other constant force
spring. Overwrap each spring with 33+ tape.
constant
force
spring
9
78-8126-0432-6-A
6.0 Install Splice Jacket
6.1 Over wrap the exposed conductors on each side of
splice bodies with jacket pieces saved from step 2.1.
Bind the cable jacket pieces in place with one
half-lapped layer of Scotch
™
88, 1 1/2" wide tape.
6.2 At both ends of splice, apply four wraps of 2228
rubber mastic, around the cable jacket 1/2" from
jacket ends.
Stretch the rubber mastic to three-fourth original
width when applying.
6.3 Install a Cold Shrink jacket tube on each cable with
the leading end just covering the 2228 mastic and the
tube extending toward the splice bodies.
Pull while unwinding the loose core ribbon end in
a counterclockwise direction to install jacket tubes.
6.4 Apply one half lapped layer of 88 tape over the
unjacketed area in splice center. Do not overlap the
Cold Shrink jacket tubes.
overwrap jacket piece
with vinyl tape
2228 rubber
mastic
88 vinyl
tape
Cold Shrink jacket
tube
10
78-8126-0432-6-A
88 vinyl
tape
Armorcast
™
wrap
2229 mastic
tape
6.5 Apply two half-lapped layers of 4" wide 2229 tape
over applied vinyl tape in splice center. Overlap ends
of Cold Shrink jacket tubes 2" (51 mm).
6.6 Cover the applied 2229 mastic with two half lapped
layers of 88 tape.
6.7 Overwrap the entire splice with a minimum of two
half lapped layers of Armorcast
™
wrap.
Tear open the top end of the foil Armorcast material
container and fill foil container half full with water.
Squeeze the container four or five times allowing the
water to penetrate the roll. Pour out water, remove
roll from foil container and immediately apply to
splice area.
Bind the final wrap in place with vinyl tape.
Note: Wear rubber gloves provided when handling
Armorcast
™
Wrap. The resin contains a
black die that will stain human skin.
Armorcast™Wrap can be applied first and then
sprayed with water to activate the curing system
It will also cure from moisture in the air in
humid conditions.
6.8 Splice is complete.
11
78-8126-0432-6-A
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Crimping Tool - Die Sets (number of crimps/end)
*Y45 and Y46 accept all Y35 dies (“U Series”). For Y45, use PT6515 adapter. For Y46, use PUADP adapter.
**Anderson VC6-3, VC6-FT and Burndy Y1000 require no die set.
IMPORTANT NOTICE
Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability
associated with such use.
Warranty; Limited Remedy; Limited Liability. This product will be free from defects in material and manufacture as of the date of
purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above,
your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except
where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special,
incidental or consequential regardless of the legal theory asserted.
Electrical Products Division
6801 River Place Blvd.
Austin, TX 78726-9000
800/245-3573
http://www.3M.com/electrical
Armorcast™, Scotch™, Scotch-Seal™and 3M™are trademarks of 3M Company.
Note: The core material being removed from the Splice Body, Jacket Tubes
and adapter are mixed polymers and can be recycled with other waste.
Printed in USA
© 3M IPC 2002 78-8126-0432-6-A
Printed on 50% recycled paper
with 10% post-consumer
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