3M 3104 Instructions

3M Mining Cable Splice Kit 3104
™
Instructions
Kit Contents:
1 Scotch Heavy Duty Mining Tape 31, 2" x 8.5'
®
1 3M Temflex Vinyl Electrical Tape 1700P, 1½" x 44'
™ ™
2 Scotch Electrical Shielding Tape 24, 2" x 10'
®
1 3M Cable Cleaning Preparation Kit CC-2-Dry
™
2 Scotch Linerless Rubber Splicing Tape 130C, 1½" x 30'
®
1 Instruction Sheet
Note: Scotch Linerless Rubber Splicing Tape 130C is applied highly-stretched with
®
tacky side DOWN.
Technical Information:
For use on 3-conductor mine and portable cables, type SHD-GC
#6 AWG–1/0 kcmil (14-50 mm )
2
2 kV
Cables up to 500 kcmil (250 mm ) will require the use of additional tapes.
2
Mine Safety and Health Administration Acceptance:
P-07-KA080005/00-MSHA
DANGER
Before attempting any cable repairs, make sure that the proper cable is disconnected,
locked out and suitably tagged.
CAUTION
Working around energized systems may cause serious injury or death. Installation
should be performed by personnel familiar with good safety practice in handling
electrical equipment. De-energize and ground all electrical systems before installing
product.
August 2009
78-8127-6849-3-C
3M ™ Temflex ™ Vinyl Electrical Tape 1700P
1.0 Prepare Cable
1.1 Position cable ends so that conductor color rotation matches.
1.2 Circle-cut cable jacket approximately 12" (305 mm) from each end. Be sure not
to damage cable conductors.
1.3 Measure approximately 14" (355 mm) from cable end and fully taper cable
jacket down to circle cut.
4"
(100 mm)
Scuff & Clean
Circle cut cable jacket
1.4 Remove approximately 12" (305 mm) of cable jacket.
1.5 Scuff and clean 4" (100 mm) of cable jacket beyond top of taper.
1.6 Remove cable fillers.
1.7 Fold back grounds and ground check conductors and temporarily tape to cable
jacket with vinyl tape.
Fold back grounds &
ground check conductors

Scotch Heavy Duty Mining Tape 31
®
Scotch Linerless Rubber Splicing Tape 130C
®
3M ™ Temflex ™ Electrical Vinyl Tape 1700P
Scotch ® Linerless Rubber Splicing Tape 130C
3M ™ Temflex ™ Vinyl Electrical Tape 1700P
Scotch Electrical Shielding Tape 24
®
14"
(355 mm)
12"
(305 mm)
1.8 Select one conductor and cut conductor approximately 9" (230 mm). Match this
conductor with same color conductor on opposite end.
1.9 Take next conductor in rotation and cut approximately 6" (150 mm) from end.
1.10 From the end of each conductor cutback remove 3½" (90 mm) of braid or tape
metallic shielding.
1.11 Remove cable color-coding to ¼" (6 mm) from edge of shielding.
1.12 Remove insulation from ends of conductors for one-half connector length
plus ¼" (6 mm).
1.13 Pencil insulation for ¾" (20 mm), sand smooth and even with electrical grade
abrasive cloth from cable cleaning materials.
(6 mm)
Metallic shield
Color-coding
2.0 Connect Phase Conductors
2.1 Join power conductors with proper connectors and appropriate crimping tool.
Make certain conductors butt up to center indents of connector.
Note: Ground wires and ground check will be joined later.
3.0 Apply Primary Insulation
3.1 Apply one half-lapped layer of 3M
edge of taper to edge of taper, making sure to completely cover edges of the
connector
NOTE: Scotch Glass Cloth Tape 27, while not included, may be used at this time.
®
3.2 Apply highly-stretched half-lapped layers of Scotch
Tape 130C (tacky side DOWN) over 1700P tape and up onto tapers. Build up
half-lapped layers of tape gradually going out on existing insulation to 1/8" (3
mm) from edge of original color coding. Tape should be wrapped to a thickness
equal to or greater than original insulation.
1/8"
3 mm
3.3 Apply one half-lapped layer of 1700P tape over the 130C tape.
3.4 Starting 2" (50 mm) up on exposed metallic shielding, wrap one half-lapped
layer of Scotch ® Electrical Shielding Tape 24 over the vinyl tape continuing onto
opposite shielding for 2" (50 mm). Wrap back down the shielding, secure with a
half hitch or square knot, and trim ends.
2"
(50 mm)
3.5 Repeat sections 2.0 & 3.0 for remaining phases.
12"
(305 mm)
9"
(230 mm)
6"
(150 mm)
3½"
(90 mm)
¼"
¾"
(20 mm)
½ connector length
+ ¼" (6 mm)
™ Temflex ™ Electrical Vinyl Tape 1700P from
3M ™ Temflex ™ Electrical Vinyl Tape 1700P
® Linerless Rubber Splicing
1/8"
3 mm
Color coding
Scotch ® Linerless Rubber Splicing Tape 130C
Tacky Side DOWN
Color coding
3M ™ Temflex ™ Electrical Vinyl Tape 1700P
2"
(50 mm)
Scotch ® Electrical Shielding Tape 24