Blog
The Semicon Screen
October 20th, 2023THE SEMICON SCREEN
THE MOST CRITICAL POINT IN ANY MV CABLE JOINT, TERMINATION OR CONNECTOR
In this Article you can read about The F-Word, Jointer Competency, “Pick-off”, Bevelling, PD, Semicon Perfection, Circumferential Grooving, Delamination, “Cut-back” and how appropriate tools from ALROC and Ripley Tools available from Thorne & Derrick | LV HV Cable Jointing & Electrical Equipment create resilient MV Power Systems.

Thorne & Derrick
MV HV High Voltage Cable Joints | Cable Terminations | Cable Connectors | Distributed from Stock | UK & Export Sales
The Semicon Screen – The Most Critical Point In Any MV Cable Joint, Termination Or Connector

Cable Innovation Tools & Accessories for Low & High Voltage Power Systems | THORNE & DERRICK are Specialist Distributors of LV HV Cable Jointing, Earthing, Substation & Electrical Eqpt up to 66kV – this includes the most extensive range of Ex Stock Innovation Tooling to facilitate safe and reliable preparation, termination and installation of cables.
We’re Exhibiting! Offshore Wind North East 2023
October 19th, 2023
OWNE Conference & Exhibition
The team at Thorne & Derrick are looking forward to exhibiting at Offshore Wind North East in November! Hosted by NOF, this industry leading event explores opportunities in the offshore wind sector; bringing together an impressive line-up of speakers and supply chain opportunities.
Thorne & Derrick International are Specialist Suppliers to the UK and international Offshore Wind Industry of products to provide safe and reliable LV HV Electrical Cable Termination, Jointing, Installation & Power Systems up to 66kV.
📍Location: Beacon of Light Sunderland
🕑Date: 8th & 9th November
We will be showcasing and demonstrating a range of our innovative products and solutions at the Event including LV-HV Cable Joints, Terminations, Connectors, Tools & Accessories, Arc Flash Safety and Voltage Detection. Thorne & Derrick will also be delivering a LIVE Demo of the Picoup 400 Spiking Tool from PENTA P&B (formerly P&B Weir).
See the full range of products below:
- NEW MV HV Cable Jointing Stand from Vicera
- Nexans Expert Tool Kit
- A range of No-Touch Push-Pull Tools from The Hand Safety Tool Company
- Innovative Cable Safety Hooks from CableSafe
- Nexans Euromold Separable Connectors
- 3M Cold Shrink
- Pfisterer Connex
- Seanex High Voltage Connector for Offshore Inter-Array Cabling Termination
- Ellis Vulcan Cable Cleats
- Pfisterer Voltage Detectors
- Arc Flash Clothing | Electrical PPE Kits
- Cembre HT131-C | Crimping Tool (up to 400sqmm cables)
- Klauke ESG105 | Battery Powered Cable Cutting Tool 105mm Dia.
Come and visit us at Stand D02 and let’s explore how we can work together to make your offshore wind projects a success✨
About The Event
Offshore Wind North East (OWNE) is a national event in a pioneering offshore wind region of the UK. Since 2000 the North East of England has been involved in offshore wind, using its experience and expertise in other industries to diversify and create a new and vibrant offshore wind supply chain. It now leads the way in the green energy revolution, playing a key role in energy security and the UK journey to net zero 2050. The industry here has now contributed significantly to the creation of new jobs, economic growth and the regeneration of coastal communities.
With first-class infrastructure, including six highly-active ports, its prime location on the east coast of England with world class offshore wind farms on its doorstep, including Dogger Bank Wind Farms and the Sofia Offshore Wind Farm, the region maintains its enviable track-record with its supply chain cluster contributing a lion’s share to the UK and the Global offshore wind farms.

“RWE’s Sofia has been a strategic partner for Offshore Wind North East every year since 2018, which means this year’s event will be the sixth time we have had a major presence there. As one of the major offshore wind developers projects in the region, RWE and the Sofia project team sees it as an excellent opportunity to meet colleagues and suppliers and find out what is happening in the sector locally. Companies from the North East have been integral to the success of the UK’s offshore wind evolution and having access to the wealth and depth of experience in one place makes it a really worthwhile two days in November. This applies not just for Sofia but for the wider RWE portfolio including those upcoming projects such as Dogger Bank South and its numerous operational projects in the North Sea and around the UK.”
Matthew Swanwick
Project Director, Sofia Offshore Wind Farm
NOF

NOF is a UK wide, business development membership organisation, helping to make valuable connections between businesses in the global energy sector. They work on behalf of members and their network of partners to put companies of all sizes in touch with the best and most innovative supply chain businesses in the UK.
The organisation offers an annual membership with four core services: Business Development, Industry Introductions, Events and Supply Chain Engagement. Your NOF membership can be enhanced with access to the Offshore Wind Projects Database.
Thorne & Derrick
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick International are Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
Key Product Categories: Connectors, Joints & Terminations MV HV | Cable Preparation & Jointing Tools | Duct Seals | Cable Transits | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Clothing & Protection | Cable Pulling | Earthing & Lightning Protection | Feeder Pillars
Thorne & Derrick distribute the most extensive range of MV HV Medium & High Voltage Cable Joints, Terminations & Connectors from manufacturers including 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX & SEANEX.

3M Scotchcast™ Resins – EU Regulation 2020/1149 Amending REACH Restrictions
October 18th, 2023
3M Scotchcast™ Resins
3M 92 NBA GS Scotchcast resin cable joint kits are low-voltage cable jointing kits using the innovative epoxy, CMR-free 3M™ Scotchcast™ 4 GS Resin.
The Scotchcast cable joints incorporate electrical insulation and mechanical protection and are compatible with both compression (crimp) or mechanical shearbolt connectors for conductor jointing of copper or aluminium cores.
92 NBA GS Scotchcast resin cable joint kits includes 8 sizes with options of an integrated connector and different joint types. It features a unique design which builds upon the experience of 3M in low voltage cable accessories.
Due to EU regulation 2020/1149 amending REACH restrictions, the EU has introduced mandatory training for workers handling diisocyanates, effective 24 August 2023.

3M™ Scotchcast™ Electrical Insulating Resin 4 GS in bags
How does this affect the use of 3M™ Scotchcast™ Resins?
The 3M™ Scotchcast™ 4GS Epoxy Resin was developed with sustainability, safety and ease-of use in mind.
The product is free of carcinogenic, mutagenic and reprotoxic (CMR) substances, without compromising the performance. The isocyanate-free formulation means that it is not concerned by the EU regulation 2020/1149, and as a result, avoids the need for the mandatory training.
The popular 3M™ Scotchcast™ 40 Polyurethane Resin and 3M™ Scotchcast 40 Resin Kit products are impacted by the EU regulation 2020/1149, as they contain Diisocyanate component typical for Polyurethane resins.
But reassuringly, all of the 3M™ Scotchcast™ Resin Kits which come with an innovative closed mix & pouring (CMP) system that connects the resin bag with the housing body (which is a convenient one-piece mould) ensure a mess-free, no-contact, fast and safer installation. This minimises the risk of human exposure to the resin.

3M Electrical | Scotchlok | ColdShrink | Scotchcast Resin | Scotch Electrical Tapes
Since 1985, Thorne & Derrick have been Approved Distributors for 3M Electrical Products (LV HV) including Cold Shrink and Scotchcast products – whilst the competitive supply of product from stock on short lead times is essential to the distributor it is equally vital that 3M product reputation is preserved through the correct installation of products in accordance with 3M recommendations.
CSD Marine Grade Cable Transit Sealing System Supplied Onboard Kintra II Passenger Vessel
October 18th, 2023
Thorne & Derrick | Stockists & Leading UK Distributor for CSD Sealing Systems
PR | Uploaded by Natalie Lundie | Supply Chain: Marketing Lead at Thorne & Derrick
Thorne & Derrick, a UK Specialist Distributor for CSD Sealing Systems, have recently supplied a technical solution to Rathlin Ferry for their Kintra II passenger vessel.
Together with CSD we provided a cable duct sealing system suitable for marine and offshore environments – protecting against flood water and gas ingress where cables are often routed through cable transits that are exposed to harsh weather conditions and potential flooding.
Sealing Application
The client contacted Thorne & Derrick requiring a solution that provided a safe and secure way to seal and protect cable and pipe penetrations through the bulkheads. The bulkheads that they were looking to pass cables through were rated at A60 and any system installed also needed to be A60 rated to maintain the integrity. The system also needed to provide fireproof and watertight seals that complied with International Maritime Organisation (IMO) and SOLAS regulations.
Thorne & Derrick contacted CSD, The Global Leader in Fire, Water & Gas Penetration Sealing Systems who initiated a consultation with the client to identify the optimum solution. After an extensive call with CSD’s Operations Director, Anthony Jordan discussing the application further it was decided that the original enquiry for Rise Duct Seals was more suited to the onshore market and a suitable alternative was offered.

CSD NOFIRNO Seals – Multi Cable & Pipe Transit Sealing
Sealing Solution
It was determined that the NOFIRNO Multi-Cable Transit System which is approved for harshest fire ratings for pipe penetrations (A, H and Jet Fire class) was the best solution.
This is because this type of system holds the required certification and provided the A60 rating required. Designed specifically to maintain the safety of the vessel by providing fire protection and ensuring the bulkheads remain gas and watertight when cables need to pass through them.

The NOFIRNO system comprises of rubber and filler sleeves and sealant, the system is used to treat transit openings for cables and pipes in walls, floors, bulkheads or decks, so that it is fire-resistant and sealed against gas, smoke and water.
It consists of only a few components: NOFIRNO sealant; a silicone based fire resistant, water repellent sealant, a correctly fitting NOFIRNO cable sleeve and NOFIRNO multi-filler sleeves, supplied in bonded strips to make the system easy to install.
The system consists of a correctly fitting NOFIRNO rubber sleeve placed around each cable with the free space then packed with rubber multi filler sleeves. The rubber sleeves are 40mm shorter than the overall transit length to allow the seal to be completed with a 20mm layer of sealant at each end of the transit.
Anthony Jordan Operations Director at CSD Sealing Systems commented, “We were pleased to support Thorne & Derrick, our Specialist Distributor, with the technical aspects of this enquiry helping to make ensure the customer was provided with a sealing solution that met their specification requirements and also provided a certified system to help improve safety and protect lives when the vessel is in service.”
CSD NOFIRNO Seals – Multi Cable & Pipe Transit Sealing – Installation Layout

Why did the existing frame need extending?
During the phone consultation with Anthony it was discussed that to meet the requirements of an A class fire rating the existing frame needed to be extended from the existing120mm in length. The system is tested at a minimum length of 180mm for A60 and 200mm for A0.
Anthony confirmed that CSD generally recommend using a 200mm to ensure all ratings are covered. The length of the penetration helps to prevent heat transfer between compartments and also ensures you have sufficient rubber materials for the system to perform when there is a fire.
It is imperative to ensure that not only there is no fire breakthrough where these cables pass through the bulkhead but also that the heat on the non-fire side does not increase to a level where there could be ignition on the non-fire side.
NOFIRNO Multi-Cable Transit System Advantages
The NOFIRNO system consists of high-quality, non-toxic silicone-based rubber seals and high-strength steel frames. The rubber seals are designed to expand and fill the space around the cables, providing a tight seal that prevents fire and smoke from spreading throughout the ship. The frames are designed to securely hold the seals in place and provide a strong and durable barrier against fire and water.
Using the NOFIRNO multi-cable transit system on a passenger vessel can provide many benefits, including:
- Enhanced safety and protection: The NOFIRNO system provides a high level of fire resistance and watertightness, ensuring that passengers and crew are protected from potential hazards
- Easy installation: The system is easy to install and requires minimal tools and equipment. This reduces installation time and costs, making it an efficient and economical option for shipbuilders and owners
- Flexibility: The system can accommodate a wide range of cable and pipe sizes, and can be customized to fit the specific needs of each vessel
- Durability: The NOFIRNO system is made from high-quality materials that are designed to withstand the harsh marine environment and provide long-lasting performance
With its proven track record of success, this CSD system is an excellent choice for anyone looking to protect their cables from the damaging effects of flood water and gas ingress.
KINTRA II
Kintra II was commissioned by Kintra Boat Tours in 2020.
It is an 82 passenger catamaran for trips and tours of the North Coast and Rathlin Islands. As the design of Kintra proved so popular with guests, Kintra Boat Tours decided to keep the same design with a few added extras.

Rathlin Island, Northern Island

Staff & Support Training Day | Anthony Jordan (Operations Director) has supported T&D for over 20 years. Anthony recently invited the team to visit the CSD offices in Cramlington providing product refresher and hands on training for the team.


LV HV | Jointing, Earthing, Substation & Electrical Eqpt up to 66kV | Specialist Distributors

MV HV High Voltage Cable Joints | Cable Terminations | Cable Connectors | Distributed from Stock | UK & Export Sales
Thorne & Derrick distribute the most extensive range of MV HV Medium & High Voltage Cable Joints, Terminations & Connectors from manufacturers including 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX & SEANEX.
Heat shrink, cold shrink, push-on and slip-over cable accessories enable the jointing, terminating and connection of 11kV-33kV and 66kV-132kV cables to oil, air or gas insulated switchgear, transformers, motors and overhead lines distributing electricity at MV HV.
Thorne & Derrick hold large stocks of 11kV 33kV 66kV Joints, Terminations & Connectors suitable for XLPE, PILC and EPR cables, in both heat shrink and Cold Shrink technologies, to service the medium/high voltage power cable accessory requirements of UK and international customers – this includes underground and subsea cables.
EUROMOLD | The Separable Connector Brand for MV Cable Terminations
October 12th, 2023EUROMOLD, the Brand
EUROMOLD, the EPDM Connector | 1,000 Units SPECIFIED & SOLD | Last week, Thorne & Derrick, the UK’s leading and a Preferred Distributor of Euromold brand Separable Connectors manufactured by Nexans Power Accessories delivered their 1,000th Connector this year – all these sales had a single common factor.
These 1,000+ Connectors on each and every occasion were supplied to either replace FAILED or DISTRESSED ( FAILING) competitor brand product – note these 2023 sales exclude new project installations, they are inclusively replacement of in-service energised or outaged (usually premature PD evidenced) Connectors.
Euromold Connectors are manufactured from EPDM material.
EPDM Connectors demonstrate the highest quality electrical insulation, superior tracking resistance and a proven field performance with an unrivalled service life cycle expectation – 40 years of field service when installed correctly and functioning in normal environmental conditions.
The difference is material.
That difference is EPDM.
You can trust EUROMOLD.
This continues a concerted awareness campaign across all sectors from wind turbine to trackside rail – take a moment please to read my Blog : Nexans Euromold | Where the Difference is Material
More Euromold
- Water Sealing, IP Rating & Temperature Range Of Nexans Euromold Connectors
- Different Insulating Epoxy Plugs & How To Install The Cap On Nexans Euromold Interface C Compact Connectors
- Bevelling The Edge Of The Core Insulation During Installation Of Nexans Euromold Connectors
- Installation & Clamping Of Nexans Euromold Compact Connectors Onto Their Mating Bushings

MV HV Medium & High Voltage Connection & Termination Products up to 66kV

