A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
This video by 3M Electrical shows how to splice a 15kV SHDC cable using 3M Mining Cable Splice Kit 3103 safely.
3M Mining Cable Splice Kit 3103 may be used for flexible conduit and mining jacket repairs, as well as for cable splicing and jointing mine and portable cable.
3M 3103 cable splices and joints are for use on 3-conductor mine and portable cables, type SHD-GC, MPF-GC and MPF; # 6 AWG-500 kcmil; 5kV, 8kV, 15kV.
3M Mining Cable Splice Kit 3103 Kit Contents
Position cable end so that the colour rotation matches. Circle cut the cable jacket 12” from each end. Be sure not to damage the cable conductors. Measure 14” from the cable end and fully taper down to the circle cut.
Remove 12” of the cable jacket and cable fillers. Scuff and clean 4” of the cable jacket beyond the top of the taper. Hold back the grounds and ground check conductors and temporarily tape to cable with Temflex 1700P vinyl tape.
Select one conductor and cut at 9”. Match this conductor with the same colour conductor on the opposite end. Take the next conductor at 6”. Remove ¾” of the braid or tape metallic shielding from each conductor plus one half the connector length plus ¼”.
Remove cable semi con to ¼” of the shielding. Remove insulation for one half of the connector length plus ¼”. Pencil the insulation for ¾” and sand it smooth and even with electrical graded abrasive cloth.
Once the cable is prepared, join the power connectors with the proper connectors and cable crimping tool. Be sure the conductors butt up against the centre indents of the connector.
Note that ground wires and ground check will be joined later.
Apply two highly stretched half lapped layers of Scotch 13 from the edge of one taper to the other, making sure to completely overlap the exposed semi conductive shield. Next apply highly stretched half lapped layers of Scotch 130C and up onto the tapers.
Build up half lapped layers building onto the existing insulation to 1/8” from the edge of the original cable semi con. The taper should be wrapped equal or greater than the original insulation.
Apply 2 highly stretched half lapped layers of Scotch 13 over the Scotch 130C overlapping the edges of metallic shielding.
Starting 2” up on the exposed metallic shielding wrap 1 half lapped layer of Scotch 24 over semi conductive tape continuing onto the opposite shielding for 2”.
Secure with a half inch square knot and trim the ends. Repeat connecting the phase conductors and applying primary insulation for the remaining phases.
Beforre cutting the ground wires reposition the spliced power conductors so that the conductors are returned to the natural helix of the cable. Lay the ground wires in their natural position in the valley between the two power conductors. Allow the ground to link staggered so as to avoid connection over the power conductor connections.
Join the conductors with the proper connectors and appropriate crimping tool. If present, connect the ground check conductor after trimming it to the proper length and remove one half connector length of the insulation from each lead.
On the ground check, clean the insulation 1” on both sides of the connection and apply one half lapped layer of 3M Temflex 1700P, one half lapped layer of Scotch 130C and one half lapped layer of 1700P over the connector and the clean insulation. Connect the remaining ground wires.
Bundle the cable assembly and bind it with 3M Temflex 1700P tape. Cover 1700P tape with one half lapped layer of Scotch 2228 and starting half way up the tapers, wrap half lapped layers of Scotch 130C building up and across the splice until the tape is equal to or greater than the original jacket thickness and extends 1” past the top of the jacket tapers.
Start 2” beyond the Scotch 130C tape and wrap one half lapped layer of Scotch 31 tape extending 2” beyond the 130C tape on the opposite end. Always wrap the Scotch 31 tape toward the machine end of the cable.
Start 1“ past the Scotch 31 and apply 3 half lapped layers of 3M Temflex 1700P to each end to temporarily secure the ends of the Scotch 31 tape jacket until the jacket reaches full bond.
Remove damaged cable jacket and taper the jacket approximately 2”. Scuff and clean 4” of the cable jacket beyond each split end. Bundle the cable assembly and bind with 3M Temflex 1700P tape.
Cover the Temflex 1700P tape with one half lapped layer of Scotch 2228. Wrap half lapped layers of Scotch 130C building up and across the splice until it is equal to or greater than then original jacket thickness and extends 1” beyond the top of the jacket tapers.
Start 2” beyond the Scotch 130C tape and wrap one half lapped layer of Scotch 31 tape extending 2” beyond the 130C tape on the opposite end. Always wrap the Scotch 31 tape toward the machine end of the cable.
Start 1“ past the Scotch 31 and apply 3 half lapped layers of 3M Temflex 1700P to each end to temporarily secure the ends of the Scotch 31 tape jacket until the jacket reaches full bond.
Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Mining Cable Splice Kit 3103.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This video by 3M Electrical shows the benefits of 3M Scotch Electrical Tapes.
3M Scotch tapes are used to cable joint, splice, repair damaged cables, seal and protect cables against abrasion, fire and corrosion – this includes protection of LV-HV (11kV-33kV) cables and connections.
Please contact T&D should you require assistance with selecting the correct 3M Scotch tape.
The 3M video explains the benefits of using Scotch electrical tape over alternative tapes.
Extreme Heat or Cold Applications For Scotch Tapes
Watch the video to see how Scotch tapes perform and endure installation and service conditions at temperatures down to 0°F and up to 220°F temperatures with cracking or unwinding. Scotch tapes will not degrade overtime when subject to temperature extremes, weathering, moisture or chemicals.
3M Scotch tapes demonstrate strong adhesion and excellent durability ensuring they are ideal for permanent jobs such as insulating and protecting electrical cable connections – once wound properly it remains wound.
3M Scotch tapes can also be used in zero degree temperatures and withstands high temperature up to 220ºF unlike other vinyl electrical tapes which would crack and unwind.
A greater stretch and tape elasticity provides a smooth, professional wrap and the coloured coded and fade resistant design ensures permanent and clear cable identification using 3M Scotch vinyl electrical tapes.
The Scotch brand of PVC vinyl electrical tapes, manufactured by 3M Electrical, provide distinct competitive advantages over unbranded poor quality tapes which may have a superficial low price but actual high cost associations – since plastic vinyl tapes hit the mass-market in the 1940’s 3M Scotch has been the choice brand of the professional electrician for tapes with excellent electrical and mechanical properties.
For instance, 3M Scotch Super 33+ is the market-leading “fit and forget” vinyl electrical tape for providing cable protection, insulation and repair in industrial and hazardous area installations – this includes chemical (resists acids and alkalies), offshore (resists abrasion and corrosion) and industrial outdoor (resists UV ultraviolet light) applications.
As standard Scotch 33+ is coloured black so for colour-coding, phase marking and identification applications go with 3M Scotch 35 – same product specification as Scotch 33+ but with a colour spectrum of red, yellow, blue, brown, grey, white, green, orange and violet.
For cold weather and extreme low temperature applications select 3M Scotch 88 for continuous service down to 0 Degrees Celsius – Scotch 88 by 3M features excellent pliability and adhesion.
A varnished cambric tape is “off-the-shelf” for high puncture and cut-through resistance with Class A thermal stability – contact sales and ask about 3M Scotch 2510 for further information.
The protection of medium/high voltage cables and joints demands heavy-duty electrical tapes – substandard and under specified tapes pose risk and danger to power systems and life. Here, upgrade your tape choice to 3M Scotch 22, recommended by 3M Electrical for outer sheath and cable jacket protection or repairs to high voltage power cables and joints with rubber or polymeric cables. That’s XLPE and EPR in “cables-speak”.
Where cost is King but a good quality and general purpose PVC electrical tape is required contact us to place an order for 3M Temflex 1500.
All 3M Electrical Tapes are super stretch and strong for holding power in place without fail.
Due to the physical properties of 3M Scotch the tapes provide moisture-tight, chemical resistant electrical sealing of cables, connections and cable joints.
So overall, Thorne & Derrick distribute an extensive range of electrical tapes including fire proofing tapes with arc protection, see 3M Scotch 77 and high specification fire resistant tapes manufactured by Nexans.
Further details on the complete range of 3M Scotch Electrical Tapes can be found here:
Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Scotch Electrical Tape.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This video by 3M Electrical explains why you would choose a cable abandonment kit over a cable cap.
3M cold shrink cable abandonment kits (live cable end seals) are used to temporarily or permanently seal power, control and instrumentation cables – this includes the abandonment of redundant or decommissioned low voltage offshore, marine and shipwiring power, control and instrumentation cables in both safe and hazardous area workplace locations, such as Zone 1 or Zone 2 according to ATEX Directive.
Unlike cable end caps the cable abandonment kits include a copper earth braid system for the safe grounding off cables in the event of future planned or accidental energisation of the electrical cable circuit – the cable sheath and cores should be covered and protected with copper earth braid and bonded using constant force springs to effectively short-circuit the cable system if energised. Copper binder wire and shielding braid is used to abandon and ground the individual cable cores – this is demonstrated in the 3M Training video below.
Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Cold Shrink Cable Abandonment Kits.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This video by 3M Electrical shows how to apply 3M Cold Shrink Tubing safely.
3M Cold Shrink Tubing is a series of open-ended, tubular rubber sleeves, which are factory expanded and assembled onto a removable core – the cold shrink tubes are supplied for field installation in a pre-stretched condition without requirement to use any activation or installation tools.
Cold shrink tubes are available in both EPDM rubber and silicone.
The 3M video shows how to install the tubing by unwinding the removable core allowing the tube to shrink and form a waterproof cable seal. Cold Shrink is quicker, easier and safer to install than heat shrink tubing alternatives.
Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Cold Shrink Tubing.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
A series of How-To videos for repairing, jointing and terminating cables using 3M Cold Shrink & Scotchcast products.
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This video by 3M Electrical shows how to apply 3M Cold Shrink End Caps safely.
3M Cold Shrink end cable caps environmentally seal and mechanically protect exposed low and high voltage cable ends using no specialist tools, mastics or tapes – manually applied the cable caps are safe and fast to install in the field for immediate protection of unsealed cable ends against water ingress.
The 3M video explains how a Cable Abandonment Kit can be used to safely abandon a cable either permanently or temporarily. The Cold Shrink kit ensures that if the cable is accidentally re-energised it remains safe.
Cold Shrink – invented by 3M over 40 years ago and now the preferred technology for heat-free jointing, terminating, sealing and abandonment of LV HV cables
We hope you find this video informative and educational, contact T&D for technical support, quotations and stock availability for 3M Cold Shrink Cable End Caps and Cable Abandonment Kits.
➡ Visit 3M Electrical for further information about joints, terminations, tapes and insulation to seal, repair, splice and connect LV MV HV cables.
Cold Shrink | Joint | Terminate | Seal | Repair | Splice | LV MV HV Cables | 3M
Published 25 Mar 2026
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