âž¡ QS1000 are Cold Shrink Joints/Splices manufactured by 3M Electrical – the 3M QS1000 cable joints for single and 3 core cables are tested and rated to 15kV/17.5kV.
3M Electrical have a full type test report to 11kV for the cable joints – also 3M Electrical have type tests to show that the QS1000 splice bodies are tested to 15kV. The QS1000 splice is used in both the single, and 3 core joints, and the impulse level tests are relevant to show that all joints using the QS1000 are rated to 15/17.5kV.
Test Report | Cold Shrink | Single Core Cables MV HV Joints up to 15kV/17.5kV
Test Report | Cold Shrink | 3 Core Cables MV HV Joints up to 15kV/17.5kV
Information confirmed by 3M Electrical.
Should you require any assistance with the selection or specification of Joints & Terminations for use with MV HV cables please contact us.
Alroc Tools – Cable Jointing Tools (MV HV)
Video Demonstration: Stripping Bonded Semicon From EPR Insulated Cables MV HV
In the following demonstration video the Alroc CAMF4 tool is shown with the LFNS blade removing bonded semicon screen from medium voltage power cable with EPR insulation.
Thorne & Derrick International are specialist distributors and stockists of Alroc – high quality cable preparation and 
jointing tools for use with medium/high voltage power cables.
T&D distribute Cable Jointing Tools from leading manufacturers including Alroc, Ripley, Boddingtons and Hivotec for all types of LV, MV or HV cable stripping, preparation and jointing requirements
THORNE & DERRICK INTERNATIONALÂ
LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment Distributors.
uploaded by Chris Dodds - Thorne & Derrick Sales/Marketing Manager
Thorne & Derrick International, a Panduit Channel Partner, based in the UK and Specialist Distributors of Electrical Safety Equipment are delighted to provide this following Product Endorsement of Panduit Verisafe by Craig O’Neill of Steve Willis Training Ltd.
Initially sceptic but nevertheless open-minded Craig wanted to learn more – so we arranged a product demonstration.
âž¡Â VIDEO How To Verify Total Absence of Voltage By The Push Of a Button
” Verisafe is an electrical safety product manufactured by Panduit that automatically isolates electrical control panels and distribution boards.The risk of arc flash is an incredibly dangerous problem – arc flash incidents and blasts can vaporise someone in a split second. Having worked in substations for the early part of my career I was always terrified of being responsible for electrical isolation. One false move and it’s too late.” comments Craig.
“Verisafe eliminates 99.999% of this risk and should be implemented to every panel as a first step to isolation procedures. My concerns initially was the device picking up inductive back emf and other induced currents but the demonstration carried out by Glen Bate (Panduit IEI Account Manager) proved it can detect these.”
“Verisafe even detects when a phase has lost connection!”
“I am very good at finding product faults or shortcomings but so far I’ve found none.”
“The electrical safety device needs maintenance like any product but if put in a professional environment, this could easily be implemented into regular checks. Safe electrical isolation is a lesson we drum into our learners at Steve Willis Training Ltd because high standards of professionalism is at the heart of what we do. Electrical safety is at the forefront of being a professional and so it fits right in with our ethics and we were very pleased to have Glen Bate visit and discuss it with us. The students really had a good think about safe isolation after he left and it really helped move the us up a peg on the professional ladder.”
SWT Specialists In Building Engineering Services Training
Who Are Steve Willis Training Limited?
We are specialists in building engineering services training with over 18 years’ experience at our first class training 
centres in Burgess Hill, West Sussex and Portchester, near Portsmouth.  Our training ranges from short courses for tradespeople to full apprenticeships and retraining for those leaving the armed services.
We treat you as an individual, finding the perfect course to suit your needs based on your requirements, experience and qualifications – we’ll never sell you a course you don’t need. We have an excellent reputation  – most of our business comes from repeat customers and personal recommendation – and we are approved by all the industry bodies.
We are proud to be an EU Skills approved centre for our IGEM/IG/1 compliant gas managed learning programme, City & Guilds approved for our electrical training, and an OFTEC approved oil training centre.
Steve Willis Training Ltd
Unit F2, Sheddingdean Industrial Estate
Marchants Way, Burgess Hill
West Sussex, RH15 8QY
#WednesdayWisdom Take advantage of 15% discount on selected electrical courses for 2019/20 if you book by 5th July: https://t.co/CFkC1zIzJX call 01444 870860 / 02392 190190 to book pic.twitter.com/fFrgvL91qU
— SteveWillisTraining (@Steve_WillisLTD) June 12, 2019
T&D are Specialist Distributors to UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and HV Jointing Contractors of an extensive range of LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt – this includes 11kV/33kV/66kV joints, terminations and connectors for both DNO and private network applications.
Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.
Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HVÂ
 ➡ Read: Thorne & Derrick Announce Distribution Agreement & Contract With NexansÂ
uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager
This document describes a Nexans standard MV Medium Voltage subsea power cable.
Optical fibres can be included upon request. Utilising the common nomenclature U0/U(Umax)1, the following voltage ratings are covered in this Subsea Cable document:
Fibre Optic Core:Â Multiple single mode fibres (G652) are encapsulated in a protective steel tube together with a hygroscopic filling compound. The final diameter of the FO element is tuned to match the primary interstice of the main assembly by extruding an outer polyolefin cable sheath.
Cable Armour:Â Protective layer(s) of galvanised steel wires is applied over the inner covering. Interstices are filled by bitumen for corrosion protection – these can be prepared using approved cable cleaners. The cable armour provides axial stiffness and crush resistance. Steel wire dimensions are according to IEC60502-2 section 13, and steel wire properties according to EN10257-2 and EN10244-2. A number of steel wires can be replaced by zinc wires for additional corrosion protection.
Complete range of Heat Shrink | Cold Shrink | Push-on type cable joints, terminations and connectors available for Medium & High Voltage MV HV subsea power cables with integral FO Fibre Optic cores from the Nexans Euromold range. See also the Prysmian FO Fibre Splice and Enclosures range for connecting and jointing FO cables.
For onshore applications please see: 11kV 33kV MV HV Medium & High Voltage Power Cables.
Subsea Cables
uploaded by Chris Dodds - Sales & Marketing Manager at Thorne & Derrick
A/ All 3M Electrical Cable Accessories which utilise 3M Cold Shrink technology are inherently safe to install in potentially 
explosive atmospheres as they do not pose a risk of ignition to flammable gases in hazardous area workplace locations as designated Zone 1 or Zone 2 according to the ATEX Directive.
For clarification on the relationship and application of ATEX with respect to Cold Shrink cable accessories for LV MV applications refer to our Blog ➡
ATEX & Cold Shrink | Certification & Safe Working In Zone 1 / Zone 2 Hazardous Areas
Hydrocarbon Resistant Cable Joints
Thorne & Derrick stock and supply 3M Electrical cable joints for MV cables with 3 core cable construction for both XLPE/EPR type cables – these are polymeric insulated cables.
For single core cables where the cables to be jointed are located in hazardous areas with hydrocarbons present the cable joints can be encapsulated using a joint mould/shell and Scotchcast 1402FR resin – the joint would be installed according to the Jointing Instruction as usual apart from the final cold shrink outer tube which would be substituted with the cable joint mould/resin.
Typically, installers have used the 92-NA-6U cable joint kit, manufactured by 3M Electrical, which is designed for LV unarmoured cables – the mould shell fits over the cable stripping dimensions of the 3M 92-AG Cold Shrink range of MV joints for single core polymeric cables (XLPE EPR). The larger 1451-PET mould can also be used in conjunction with appropriate volume of 3M resin using the Mix Pack 7 litre packs. This solution would provide excellent protection of the cable joint against the deteriorative effects of prolonged exposure to hydrocarbons in either air installations on cable containment or direct burial where the joint is to be buried in underground contaminated ground or cable trench.
âž¡ Further reading:Â 3M Cold Shrink vs Heat Shrink
Cold Shrink
Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV
Pfisterer | Nexans Euromold | Prysmian | Cable Joints & Terminations MV HV
Published 15 Oct 2025
Testimonial Organiser | EA Technology Event | Industrial Forum 2025 Title | Keeping Electrical Switchgear Safe Date | 14th October Location | Chester Racecourse By | Chris Dodds (Sales & Marketing Manager at Thorne & Derrick | Co-Exhibitor with...
Published 18 Sep 2025
Thorne & Derrick International, the UK’s leading Specialist Distributor of LV HV Cable Accessories, Tooling & Hazardous Area Electrical Equipment, are celebrating 40 years of supplying products and solutions that ensure the safety and reliability of industrial heating, lighting...
