Thorne & Derrick are Specialist Distributors to Oil & Gas EPC’s & High Voltage Contractors working on the design, construction and maintenance of UK, European and international projects.
From stock we supply an extensive range of LV HV Cables, Accessories, Jointing, Substation & Electrical Eqpt including Hazardous Area ATEX & IECEx Certified Equipment to provide Power, Heating & Lighting to onshore and offshore installations with potentially explosive atmospheres.
Based in the UK, we are highly customer responsive and absolutely committed to providing a world-class service.
Since 1985, we have provided expert technical support and express delivery from extensive UK stocks to world-wide destinations.
Thorne & Derrick specify and supply from extensive stocks market-leading brands in Cold Shrink, heat-shrink, silicone and EPDM rubber technology to support the energisation of Medium & High Voltage Power Cable Systems, 11kV, 24kV, 33kV, 66kV.
Inner & Outer Cone Style for Gas Insulated Switchgear & Transformer Connections
![]() |
![]() |
Pfisterer CONNEX Connector (Size 1 2 3 Bushings Inner Cone) | Euromold Connector (Interface A B C D E F Bushings Outer Cone) |
Heat Shrink, Cold Shrink & Silicone Push-on for Air Insulated Switchgear, Transformers & Equipment
![]() |
![]() |
Nexans JTS Heat Shrink Cable Joints | Nexans MONO Cable Terminations |
No Naked Flames | No Hot-Working | Safe for Use in Explosive Atmospheres & Hazardous Area Locations | Zone 1 & Zone 2
Thorne & Derrick | Distributed from Stock | Approved 3M Electrical Supplier | UK & Export Sales
CableSafe Hooks are designed to provide secure and safe support for temporary cables during construction, maintenance or Shutdown/TAR’s – made of high-quality and high strength materials to suspend cables up to 300kg maximum load.
S-shaped hooks are UV Stabilized, Flame Retardant (Class: 94V-0, Flame Class Rating 3) and Cold Weather Rated.
Ask About | Dropped Object Prevention (Walkway & Work Mats – Safety Netting) & Confined Space SafetyÂ
Thorne & Derrick supply an extensive range of LV Cable Accessories & Electrical Distribution Equipment to support the installation of power, control and instrumentation cables in industrial and hazardous area locations with potentially explosive atmospheres – this includes flame retardant, hydrocarbon resistant, submersible, halogen free (LSF LSZH) and fire performance cable accessories.
Cable Joints | Glands | Cleats & Ties | Connectors & Lugs | 600V/1000V to 3.3kV Cable Accessories
Thorne & Derrick supply 3M Scotchcast Low Voltage Resin Cable Joints suitable for connecting, repairing and jointing single and multi-core/pair power, control and instrumentation cables up to 600/1000V (3.3kV) in industrial and hazardous area locations – specialist applications include fire resistant, low smoke zero halogen, seawater submersible, hydrocarbon resistant and utility cable joints.
3M Cold Shrink Cable Abandonment Kits (CSCAK)Â are suitable for XLPE (SWA steel wire armoured) and EPR (GSWB galvanised steel wire braided) insulated cables, including single and multicore cables with lead sheath, 600/1000v up to 3.3kV –Â used to temporarily or permanently seal power, control and instrumentation cables including the abandonment of redundant or decommissioned low voltage offshore, marine and shipwiring power, control and instrumentation cables.
Cable Caps | Seal Exposed Cable Ends
3M Heat Shrink Cable Repair sleeves are designed to quickly repair damaged cable sheath jacketing – suitable for use with cable joints and as additional corrosion protection on undamaged cables in hazardous, harsh and extreme operating environments in onshore and offshore locations where cables are subjected to extreme mechanical stress, abrasion and exposure to atmospheric corrosive pollutants.
The Roxtec Ex Cable Transit range includes seals to accommodate different cable sizes and openings – ATEX Certified for use in Hazardous Area Zone 1 & Zone 2 for flammable gases (including vapor and mists) and Zone 21 and Zone 22 for combustible dusts. Typical applications include cable sealing electrical enclosures, transformers, motors, generators and junction boxes in explosive atmospheres.
Thorne & Derrick stock cable cleats to provide retention and short circuit fault current protection of LV-HV cables this includes; 600V, 11kV, 33kV & 66kV cables in single, trefoil, quad, or bundled formation made from materials including polymer, stainless steel and aluminium for harsh, hazardous area and high voltage cable installations.
Sealing Cable Ducts | Cable and pipe transit sealing systems for substations, penetrations and building entries to prevent water ingress or flammable gas migration with fire resistance performance.
LV Electrical Distribution | Robust, durable and secure feeder pillars provide power distribution with pre-wired custom design option.
Simple and safe to install without requirement for “hot-working” to provide effective and reliable performance for LV MV HV cable systems – excellent mechanical protection and electrical insulation with range-taking tubes or assembled kits to enable the maintenance and repair of cables demonstrating thermal stability, water-resistant and high-levels of resistance to acids, alkalis and ozone.
REDUCE RISK & WORKER INJURY
The range of Hand Safety Tools keep your hands off loads enabling “no-touch” lifting, guiding and positioning – this mitigates the risk of load handling, pinch-point injury and improves Health & Safety in the workplace.
The ShoveIt No Touch tool helps avoid hand injuries while working with suspended loads or manoeuvring objects.
Thorne & Derrick are leaders in the development and distribution of Product Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
Your proactive problem solvers experienced in succession planning for the replacement of obsolete, non-conformant and legacy equipment in hazardous areas.
Your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to your UK and international projects.
Lighting | Junction Boxes & Enclosures | Control Stations | Signalling | Explosion Proof Equipment
Thorne & Derrick, the Main UK Distributor for Raytec, provide hazardous area lighting supply and designs to ensure lux levels are achieved in line with regulations, light fittings are located correctly and meet Classification certification requirements for potentially explosive atmospheres according to ATEX & IECEx.
Raytec SPARTAN Linear Generation II Light Fittings are a globally certified (ATEX, IEC Ex & UKEX) range of LED light fittings designed for all Zone 1 and Zone 2 hazardous area lighting environments – LED luminaires designed for all new lighting installations or to retrofit existing fluorescent installations.
Thorne & Derrick are the leading stockists and suppliers of Electric Heaters & Process Heating Products for hazardous area and explosive atmosphere applications from market-leading brands including EXHEAT, Hazloc, Eltherm, Isopad and Chromalox – ATEX, IECEx, EAC Ex and North American Classification heaters are available to provide safe and reliable explosion proof heating in accordance with international hazardous area certifications.
EXHEAT FAW heaters provide safe and certified air warming with 250W to 3kW ratings – the electric heaters are ATEX & IECEx certified for use in hazardous areas Zone 1 or 2 (IIA, IIB, IIC) Gas Group. Thorne & Derrick can provide heat loss calculations to ensure the correct heaters are specified and meet ATEX certification requirements to provide adequate comfort heating.
System Design & Site Survey Services
Temperature maintenance is critical to upstream, midstream and downstream processes in the oil and gas industry.
Electrical heat tracing is applied to pipework, pumps, storage facilities and instruments to maintain critical process temperatures.
Industrial trace heating cables withstand steam cleaning processes and high process temperatures in the oil, gas and petrochemical industries. Typical industrial heat tracing applications include high temperature maintenance of impulse, samples and process pipework and plant.
Thorne & Derrick are Specialist Distributors of Innovation Tooling & Accessories for LV HV Power Systems to facilitate safe and reliable cutting, crimping, preparation, termination and installation of cables, 600V to 132kV.Â
Simple, Smooth & Consistent Semi-Con Stripping
Quickly and easily remove bonded semi-conductor layers from MV HV cables with the Ripley US02Â – no grease or clamps required.
Unique design enables efficient stripping of 66kV to 132kV power cables with the Alroc CAMF4.
![]() |
|
Ripley US02 Bonded Semicon Shaving Tool | Alroc CAMF4 Bonded Semicon & Insulation Stripping Tool |
SWA Cables Up To 105mm Diameter
The most powerful and versatile battery powered cable cutting tool Klauke ESG105 – available with a remote control option to maintain a safe distance during cutting of cables.
![]() ![]() |
Klauke ESG105 Battery Powered Cable Cutting Tool |
Hydraulic crimp up to 400sqmm cables using double speed action technology with Cembre HT131-C
Battery crimp up to 630sqmm cables without strain injury or worker fatigue with Klauke EK135FT
![]()
|
![]() |
Cembre HT131-C Hydraulic Crimping Tool | Klauke EK135FT Battery Powered Cable Crimping Tool |
Â
Up to 140mm Diameter Cables (SWA) | LV MV HVÂ
Hydraulic & Remote Operation (Bluetooth) 2-in-1 Spiking & Cutting Tools are used to check for and ensure the absence of voltage on LV MV HV underground cables then provide a clean cut. Â
Cable Spiking & Cutting Tools
MV Cable Jointers Tool KitÂ
Remove cable sheath, screen and insulation from MV cables up to 33kV – Jointers Tool Kit.
The following table outlines the Tools included in the Pfisterer MV Jointers Tool Kit stocked and supplied by Thorne & Derrick;
Supplier | Part No | Jointers Tool Description | |
1 | Pfisterer | N/A | Folding Ruler |
2 | Pfisterer | N/A | Round File |
3 | Pfisterer | N/A | MV Knife |
4 | Pfisterer | N/A | Long Nosed Pliers |
5 | Ripley | US10-7000 | Insulation Chamfer Tool |
6 | Alroc | PG4HTA/3033 | Sheath Removal Tool (Pliers Type) |
7 | Ripley | KS-1 | Scissors |
8 | Ripley | US02 | Fully Bonded Semi-conductive Screen Removal |
9 | Pfisterer | N/a | Garrotte |
10 | Alroc | LH2 | Insulation Removal Tool |
11 | Ripley | US15 PRO | Easy Peel Semi Conductive Layer/Sheath Removal |
The APU2.0 Cable Stand provides secure and balanced cables when Jointers are undertaking highly skill-sensitive cable preparation preventing inadvertent damage to cables and future potential O&M reliability – the Cable Stand is adopted for Training Centre and Field Operations and provides lateral and tilt adjustment to provide cable support and stability during Jointing and Termination.
Marechal Decontactors can be disconnected under full electrical load for planned maintenance or rapid change out of equipment during shutdowns and construction – typical applications include generator sets, motors, machines, distribution boxes, pumps and electric cabinets .
Decontactors are a Plug & Socket Assembly with Integral Switch Disconnector featuring a safety button placed on the upper section of the safety socket enabling the user with a single press of the button to disconnect the equipment – can be removed in complete safety and a shutter protects the user according to IP4X/IPXXD as the live contacts are inaccessible behind the closed shutter.
Thorne & Derrick stock and distribute the most extensive range of Low & High Voltage Electrical Safety Equipment to ensure safe working and protection against electrocution during the installation, commissioning and testing of underground power cables, overhead lines and electrical substation equipment including switchgear and transformers.
CATU |Â Helmet & Integrated Face Shield – 12 Cal Protection
Switching Suits | 25 40 100 Cal Arc Flash Protection | Breathable, Lightweight & Comfortable
CATU CZ | 11kV 24kV 36kV Substation Life Saving Kits (Portable & Wall Mounted)
CATU MT | Short Circuit & Portable Earthing Kits
CATU CC775 | OHL & UGC | 11kV 33kV 66kV 132kV
 LV MV HV Switchgear & Substation Matting
Thorne & Derrick stock an extensive range of Fire Resistant Cable Accessories, Management & Sealing Systems – this includes cable cleats, glands, joints and tapes to protect, insulate, seal and manage LV MV HV Power Systems.
Thorne & Derrick distribute Cable Pulling & Laying Products to enable the installation of Low, Medium & High Voltage Cables into underground trench or duct – products also supplied for fibre optic blowing, subsea trenching, offshore umbilical installations and pulling armoured cables onto cable tray.