Raychem cable terminations using heat shrink technology can operate under severe environmental conditions for connecting and terminating MV HV cables in both indoor and outdoor applications.
Polymeric insulated cables of various designs and cross sections can be adopted with respect to shielding and metal sheath. Composite housings with different creepage lengths up to 50 mm/kV are available for the most common and also extreme pollution levels according to IEC 60071-1 and IEC 60071-2.
Brugg cable stripping tools were used by the cable jointer to strip tand prepare the single core high voltage 2500sqmm XLPE insulated cables.
High voltage products help enhance the safety, reliability and efficiency of power networks while minimising environmental impact in applications such as substations, power transmission, enabling smart grid and enhancing eco-efficiency.
Operating and maintaining high voltage systems requires experienced operatives with specialist skills.
Since 1935, African Cables, now CBI-electric: African Cables designs and manufactures a comprehensive range of MV HV electric power cables at its Vereeniging factory.
CBI-electric: African Cables is the only cable manufacturer in Southern Africa to supply a range that meets any user requirement, irrespective of load. Included in this manufactured range are low voltage PVC/XLPE insulated cable; medium voltage XLPE; paper-insulated cable, aerial Bundled Conductor (ABC), ACSR and high voltage XLPE insulated cable.
Should you require any assistance with the selection or specification of MV HV cable joints or terminations please do not hesitate to contact us.
LV ♦ MV ♦ HV
T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Installation & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.
LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)
MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)
Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment
T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.
3M Cold Shrink Terminations (QTIII) are shown terminating 12kV 3 core XLPE (polymeric insulated) cables onto copper busbar with double hole compression cable lugs – the Nexans LC (longitudinally corrugated copper) type cable without screen wires is effectively terminated “cold” i.e. without need for naked flames associated with conventional heat shrink type cable terminations.
3M medium voltage primary distribution cable terminations are extensively used in substations and cable vaults with confined spaces where the presence of potentially explosive atmospheres and flammable gas preclude “hot-working”.
“Skirted” cable terminations feature integral rain sheds suitable for indoor (substation switchgear and transformer) or outdoor (pole-top mounted) installation. The 3 phases are clearly labelled using cable tags (Red, Yellow Blue) attached with conventional cable ties.
The MV feeder replacement project required the removal of an existing 400sqmm PILC medium voltage cable and installation of new 500sqmm XLPE single core cable system – the previous MV system under the cable terminations for grounding is obsolete and out of service.
Note the NEMA pad bolted connection – there is a ball stud on it which is used for applying your working grounds.
Longitudinal Corrugated Tape Shielding – a flat copper tape is corrugated at right angles to its length and then formed into a cylinder around the medium voltage cable core or inner cable sheath/jacket. LCT shield design enables rapid stripping and termination by the cable jointer. 3M GSK Shield Grounding Accessory Kits convert concentric neutral (CN) or jacketed concentric neutral (JCN) QT-II or QT-III Cold Shrink termination kits for use on longitudinally corrugated (LC) and tape shielded power cables.
Contact T&D to discuss your next MV Cable Jointing or Terminating application using 3M Cold Shrink.
Medium Voltage Primary UD LCT Shielded Cable
Allteck Line Contractors – specialised services for the high voltage electric power industry.
3M Termination Installation – sealing the cold shrink cable breakout and rejacketing the phases on 3 core medium and high voltage power cables without ground wires.
T&D – Main Distributors For 3M Electrical
Should you require any assistance with the selection or specification of cable joints or terminations using 3M Cold Shrink on MV-HV cables please do not hesitate to contact us.
LV ♦ MV ♦ HV
T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Installation & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.
LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)
MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)
Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment
T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables
➡ Visit Power Blog
Published 28 Nov 2025
Request a Quote Call Us: +44 (0)191 410 4292 Stokbord cable protection covers are rigid HDPE protection boards designed to be installed above buried cables in trenches. They are manufactured and designed by Centriforce to provide strong mechanical protection...
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Restoring transformer termination integrity with LoviSil When a major site recently experienced a fault on an 11kV transformer termination, the challenge was clear: restore the system quickly, safely and without the expense/disruption of full PILC cable replacement. Upon investigation,...
