3M 78-8126-0432-6-A, 5797A-MT User Manual
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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78-8126-0432-6-A
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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