Ellis Patents were involved in the Network Railproject to electrify the Severn Tunnel. The requirement was for a solution to carry the insulated ATF cable. An added complication for Ellis Patentswas the aggressive conditions within the tunnel and the requirement for a 40 year product design life.
Cable Clamp
Ellis Patents Solution
Ellis worked with Network Rail to develop a solution based around the proven 2F+ two hole cable clamp alongside a bespoke bracket manufactured from Super Duplex stainless steel.
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick Internationalare Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
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.
Northern Power Grid installed power cables under the New Wear Bridge as a new main supply route. The existing route on the Queen Alexander Bridge was scheduled to be decommissioned due to its age and the phasing out of oil filled cables. The cable installation is unique in that it requires the cables to be suspended under the bridge and above a river. The cables are carried in Emtelle ducts.
Balfour Beatty were contracted by NPG to install the cables, they in turn approached Ellis to provide a cable duct support solution.
Cable Duct Support System
Ellis Patents Solution
Ellis worked with Balfour Beatty to develop a product to suspend the duct from the underside of the bridge, and also develop an installation methodology. The solution was based around on 12 off standard 2F+ clampwith a bespoke stainless steel structure.
240 assemblies in total were supplied. The frames hang from the underside of the bridge and support ducts supplied by Emtelle. Power cables are then installed into these ducts.
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick Internationalare Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
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.
The Taishan Nuclear Power Project is a joint venture between EDF and China Guangdong Nuclear Power Group, it is the second nuclear power station to be built using Areva’s 1,750 megawatt EPR and it is the second time Areva has used Ellis Patent’s products to secure electrical cables at a nuclear plant.
Our first specification for Areva was for its OL3 reactor in Finland in 2009, and was secured as a result of our proven technical expertise and excellent industrial references.
Emperor & ProTect Cable Cleats
Ellis Patents Solution
Emperor Cable Cleat
The Emperor Cable Cleat is designed for use where the highest levels of short circuit withstand are required, Ellis’ Emperor cable cleats are available for both trefoil and single cable applications. All products in the range are manufactured in type 316L stainless steel, meaning they provide ultimate corrosion protection, even in the harshest of environments.
The benefits of the Emperor cleats also extend to a patented design, which makes installation quick and easy, and an integral LSF zero halogen polymeric liner and base pad that protects and cushions cables during short circuit.
ProTect Cable Strap
Ellis’ ProTect cable straps, which are manufactured out of 316L stainless steel, are designed for installation between trefoil cleats, such as Emperors. They not only enhance short circuit capabilities, but help to retain trefoil formation and, because they allow for greater fixing distances between cleats, can reduce installation time and cost.
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick Internationalare Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
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.
The FPSO is the first of eight replica FPSOs to be built for the development of the pre-salt projects in the prolific Santos basin. The vessel will have a processing capacity of 150,000 bpd of oil and 6 million m³/day of natural Emperor Cable Cleat.
The Emperor Cable Cleat is designed for use where the highest levels of short circuit withstand are required, Ellis’ Emperor cable cleats are available for both trefoil and single cable applications.
All products in the range are manufactured by Ellis Patents in type 316L stainless steel, meaning they provide ultimate corrosion protection, even in the harshest of environments.
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick Internationalare Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
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.
The London Power Tunnels project will create a new 32km electricity super highway deep below the capital, which will help keep Londoners connected to safe and reliable electricity supplies. In some areas of the system power is transmitted via 6 sets of cables in trefoil arrangement, to safely contain these cables a new trefoil cable cleat was required.
Trefoil Cable Cleat
Ellis Patents Solution
Working directly with UK Power Networks (UKPN), Ellis Patents developed a trefoil version of its Centaur cable saddle, a bespoke product that not only allowed the preferred trefoil arrangement of HV cables to be run through a stretch of tunnel between New Cross and Finsbury Market, but also significantly reduce the number of supports required. An essential part of the development process was a product test in a short circuit test station in Prague. For the test the structure used in the tunnel was created and suitable cable shipped from the UK.
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Thorne & Derrick Internationalare Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
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.
Celebrating Charlie & Ella’s Level 4 Sales Executive Apprenticeships At Thorne & Derrick International, we are proud to champion talent development and recognise the dedication required to achieve professional growth. We are therefore delighted to congratulate Charlie Baines and...
Thorne & Derrick will be Exhibiting at Solar & Storage Live UK 2026 at the NEC Birmingham from 22nd–24th September, showcasing our support for HV Cable Accessories, Joints, Terminations, Separable Connectors, Cable Tooling and Grid Connection Products used across...