4.0 Connect Ground Connectors
4.1
Before cutting ground wires, reposition the spliced power conductors so that the
conductors are returned to the natural helix of the cable.
4.2
Lay the ground wires in their natural position in the valley between two power
conductors. Cut ground to lengths staggered to avoid connection over power
conductor connections.
4.3
Join conductors with proper connectors and appropriate crimping tool.
4.4
If present, connect the ground check conductor after trimming to proper length
and removing one connector length of insulation from each lead. Use proper
connector and crimping tool.
4.5
On ground check, clean the insulation 1" (25 mm) on both sides of the
connection and apply one half-lapped layer of 3M
™
Temflex
™
Vinyl Electrical
Tape 1700P, one half-lapped layer Scotch
®
Linerless Rubber Splicing Tape 130C
(tacky side up), and one half-lapped layer of 1700P tape over the connector and
the cleaned insulation.
5.0 Jacketing the Splice
5.1
Bundle cable assembly and bind with 1700P tape. Starting half way up the
tapers, wrap half-lapped layers of 130C tape (
tacky side DOWN
), building
up and across the splice until tape is equal to or greater than original jacket
thickness and extends 1" (25 mm) past the top of jacket tapers.
Scotch
®
Linerless Rubber Splicing Tape 130C
Tacky Side DOWN
1" (25 mm)
past end of taper
1" (25 mm)
past end of taper
5.2
Start 2" (50 mm) beyond 130C tape, wrap one half-lapped layer of 31 tape
extending 2" (50 mm) beyond the Scotch
®
Linerless Rubber Splicing Tape 130C
on the opposite end. Always wrap the 31 tape toward the machine end of the
cable.
2" (50 mm)
past end of
previous layer
2" (50 mm)
past end of
previous layer
Scotch
®
Heavy Duty Mining Tape 31
(Mastic side toward cable)
Machine End
Start taping here
5.3
Starting 1" (25 mm) past the 31 tape, apply 3 half-lapped layers of 1700P tape
to each end to temporarily secure the ends of the 31 tape jacket until the jacket
reaches full bond.
1"
(25 mm)
1"
(25 mm)
3M
™
Temflex
™
Vinyl Electrical Tape 1700P
6.0 Repairing Damaged Cable Jacket
Note: For jacket repair option, additional tape may be needed for longer repairs.
6.1
Remove damaged cable jacket and taper jacket approximately 2" (50 mm).
6.2
Scuff and clean 4" (100 mm) of cable jacket beyond each split end.
Scuff &
Clean
4"
(100 mm)
Scuff &
Clean
4"
(100 mm)
2"
(50 mm)
2"
(50 mm)
6.3
Starting half way up the tapers, wrap half-lapped layers of 130C tape (
tacky
side DOWN
), building up and across the splice until tape is equal to or greater
than original jacket thickness and extends 1" (25 mm) past the top of jacket
tapers.
Scotch
®
Linerless Rubber Splicing Tape 130C
Tacky Side DOWN
1" (25 mm)
past end of taper
1" (25 mm)
past end of taper
6.4
Start 2" (50 mm) beyond 130C tape, wrap one half-lapped layer of 31 tape
mastic side toward cable extending 2" (50 mm) beyond the 130C tape on the
opposite end. Always wrap the 31 tape toward the machine end of the cable.
2" (50 mm)
past end of
previous layer
2" (50 mm)
past end of
previous layer
Scotch
®
Heavy Duty Mining Tape 31
(Mastic side toward cable)
Machine End
Start taping here
6.5
Starting 1" (25 mm) past the e 31 tape, apply 3 half-lapped layers of 1700P tape
to each end to temporarily secure the ends of the 31 tape until the tape reaches
full bond.
1"
(25 mm)
1"
(25 mm)
3M
™
Temflex
™
Vinyl Electrical Tape 1700P
7.0 For Conduit Repair and Splicing
7.1
If splicing, cut conduit at 30–45° angle.
30–45°
7.2
Clean and abrade conduit surface.
7.3
Fill voids using 130C tape.
7.4
Apply one half-lapped layer of 31 tape beginning and ending a minimum of 4"
(102 mm) from each side of the conduit cut or repair location.
4"
(102 mm)
4"
(102 mm)
Scotch
®
Heavy Duty Mining Tape 31
7.5
Starting 1" (25 mm) past the 31 tape, apply 3 half-lapped layers of 1700P tape to
each end to temporarily secure the ends of the 31 tape until the tape reaches full
bond.
1"
(25 mm)
1"
(25 mm)
3M
™
Temflex
™
Vinyl Electrical Tape 1700P
Important Notice
All statements, technical information, and recommendations related to 3M’s products
are based on information believed to be reliable, but the accuracy or completeness is
not guaranteed.
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.
Any statements related to the product which are not contained in 3M’s current
publications, or any contrary statements contained on your purchase order shall have no
force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture at the time 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 indirect, special, incidental or consequential loss or damage
arising from this 3M product, regardless of the legal theory asserted.
3
Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800-245-3523
Fax 800-245-0329
www.3M.com/electrical
3M and Temflex are trademarks of
3M Company.
Scotch is a registered trademark of
3M Company.
Please Recycle. Printed in USA.
© 3M 2009. All Rights Reserved.
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