NOFIRNO systems are used to seal cable ducts in an extensive range of Process industry sectors including the fine and speciality chemicals, petrochemicals, pharmaceuticals, hydrogen and polymers manufacturing sectors. The NOFIRNO range of duct seals are used to protect against water ingress, gas migration, fire spread and rodent infestation into electrical substations and buildings through LV MV HV cable ducting systems.
ATEX directive requirements can be imposed for specific uses in hazardous area locations (Zone 1/2 Flammable Gas & Zone 21/22 Combustible Dust) where there is a potential risk of explosion. Kiwa has thus investigated the extent to which the NOFIRNO sealing system (from Beele Engineering) fulfils ATEX directive 2014/34/EU.
Comprised 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 they are fire-resistant and sealed against gas, smoke and water. Kiwa’s research has shown that NOFIRNO is extremely suitable for use in environments such as those covered by the ATEX directive and described in the European standard EN 1127-1 ‘Explosive atmospheres – Explosion prevention and protection – Part 1: Basic concepts and methodology’.
Because the NOFIRNO sealant, NOFIRNO rubber sleeves and the complete NOFIRNO sealing system do not fulfil an autonomous role and are not equipment in the sense of the ATEX directive, the risk evaluation focused on use of the NOFIRNO in cable and pipe transits. All possible ignition sources related to the sealing system were also investigated.
Among the possible ignition sources which were assessed, were hot surfaces, flames and hot gases (including hot particles), mechanically-generated sparks, electrical equipment and power leakages, cathodic corrosion protection, static electricity, lightning, electromagnetic and ionising radiation, ultrasonic sound waves, adiabatic compression and shockwaves and exothermic reactions, including materials self-igniting.
Kiwa concluded that for all hazardous situations as described in EN 1127-1, there is no ignition source for NOFIRNO sealant, NOFIRNO rubber sleeves, NOFIRNO rubber filling sleeves and the complete, installed NOFIRNO system.
Watertight, Gastight & Fire Protection & Sealing for Cables & Duct Entries
CSD NOFIRNO duct seals is a multi-cable and pipe transit sealing system designed specifically for cable duct seals and building entries providing an effective and simple solution protecting against flood water and gas ingress.
NOFIRNO duct seals consist of rubber multi sleeves which are in bonded strips of 10 sleeves and a high quality silicone based sealant which are quicker and easier to install than the CSD standard RISE duct seals.
The bonded sleeves can be easily torn off for filling smaller gaps and using cutting tool sleeves can be quickly slit to allow fitting around cables ensuring cable separation – NOFIRNO duct seals are also used to pack the free space, providing a backing for the application of the cable sealant.
Completing the seal with a 20mm layer of NOFIRNO sealant will provide a technically advanced and high performance duct seal. View the complete range of CSD Sealing Systems to protect against damage caused by water ingress, gas spread or fire/flame to cables and ducts.
Should you require any assistance with the safe and effective sealing of cables and pipe systems to ensure DSEAR | ATEX Regulatory Compliance please do not hesitate to contact Thorne & Derrick.
Duct Seals | Watertight | Gastight | Fire Resistant | Resist Rodents | Cables LV MV HV
Thorne & Derrick are Specialist Distributors to the Process Industries – we supply and support businesses working on the design, construction and maintenance of UK, European and international projects.
We can competently specify and competitively supply an extensive range of Hazardous Area Equipment (ATEX & IECEx) to provide Power, Heating & Lighting to the Explosive Atmospheres industries – this includes LV HV Cables, Accessories Jointing, Substation & Electrical Eqpt from 600V to 132kV.
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.
A Universal Tool For Cable Cutting, Crimping & Hole Punching Panels
The EK 120 UNV is a 3-in-1 Universal Tool manufactured by Klauke for crimping, cutting and punching cables. Klauke EK 120 UNV crimps cables up to 400mm², cuts up to 40mm outside diameter and punches up to 144mm holes.
This universal battery powered, hydraulic tool has one head for cable crimping, cutting and hole-punching making it ideal for use in the assembly field where all common worktasks can be carried out by the electrical engineer, jointer or installer using just the one tool. All tool data can be viewed via the display and i-press® app.
| Bosch Battery System Model | Makita Battery System Model | |
| Order Code | EK 120 UNV CFB | EK 120 UNV CFM |
| Manufacturer | Klauke | |
| Crimping Force | 108 kN | |
| Stroke | 42 mm | |
| Crimping Range | 10 – 400sqmm Crimp | |
| Crimping Cycle | Dependent on cable type | |
| Cutting Range | Max. 40mm dia. mm Cut | |
| Number of Cuts | Dependent on cable type | |
| Punching Capacity | to 144 mm dia. round; to 138 x 138 mm square | |
| Battery Voltage | 18 V | |
| Battery Capacity | 5.0 Ah, Li-Ion | 4.0 Ah, Li-Ion |
| Battery Charging Time | 45 min. | 36 min. |
| Weight | 6.5 kg | |
| Ambient Temperature | -10 °C to +40 °C | |
Further Reading
Review other Blogs in this series of articles about Cable Lugs, Crimping Cables & Tools:
Klauke EK 120 UNV Battery-powered hydraulic universal tool 10 – 400 mm²
LV MV HV Jointing, Earthing, Substation & Electrical Eqpt
Thorne & Derrick distribute Cable Lugs & Cable Connectors to terminate, splice and joint LV MV HV cables – this includes copper, aluminium and bi-metallic connectors and a complete range of crimping tools for specific use on all Low, Medium & High Voltage cable types.
âž¡ Associated Brands & Products | Klauke | Cembre | Pfisterer Sicon | Cable Crimping & Cable Cutting Tools
Klauke Cable Crimping & Cutting Tools | the world‘s first battery hydraulic crimping and cable cutting tools with Tri-Insulation Barrier technology that provides users with 1000V protection against electrical shocks.
The latest cable crimping tool from Klauke, the EK 30 IDML is now available. The Klauke EK 30 IDML is the ideal tool to crimp a wide range of cable lugs with reduced cost, it features the familiar indent crimping method, meaning a change of dies is not required with the tool.
Klauke EK 30 IDML battery-powered hydraulic crimping tool makes it possible to crimp all commonly used cable lugs of the R-, L-, F- and Q-series for conductor Classes 2, 5 and 6 without requiring a change of die. The head of the tool is designed to only accept cable lugs to protect the user from any potential misapplications.
The lightweight Klauke EK 30 IDML is ideal for working in areas where space is tight and the 10.8V Li-Ion, 1.5Ah rechargeable battery will last a full working day on just one charge. Battery operated cable crimping tools are equipped with LED indicators to display the remaining battery life at any time by pressing the adjacent button.
Klauke EK 30 IDML – Features
Crimping Tool Suitable for
| Order Code | EK 30 IDML |
| Manufacturer | Klauke |
| Description | Battery-powered hydraulic crimping tool 6 – 120 mm² |
| Crimping Force | 30 kN |
| Stroke/Opening Width | 22 mm |
| Crimping Range | 6 – 120 mm² (Solderless cable lugs up to 95mm²) |
| Crimping Cycle | 2.5 s to 5 s (depending on cross-section) |
| Number of Crimps | approx. 150 |
| Battery Voltage | 10.8V |
| Battery Capacity | 1.5 Ah, Li-Ion |
| Battery Charge Time | approx. 40 mins |
| Weight Including Battery | 1.95 kg |
| Ambient Temperature | -10°C to +40°C |
Klauke EK 30 IDML Battery powered hydraulic crimping tool 6 – 120 mm²
| Suitable For | Connecting Material | Crimping Range mm² | Crimping Profile |
| Tubular Cable Lugs & Connectors – Cu | |||
| Tubular cable lugs and connectors, standard type, tubular cable lugs for switch cabinet connections |  |
6 – 120 |  |
| Tubular cable lugs and connectors for fine stranded conductors |  |
6 – 120 | |
| Solderless Terminals, Connectors & Pin Terminals to DIN – Cu | |||
| Solderless terminals (DIN 46234) and pin terminals (DIN 46230) according to DIN – Cu, solderless connectors (DIN 46341) according to DIN – Cu | |
6 – 95 | |
Klauke EK30IDML | Cable Crimping Tool
Further Reading
Review other Blogs in this series of articles about Cable Lugs, Crimping Cables & Tools:
LV MV HV Jointing, Earthing, Substation & Electrical Eqpt
Thorne & Derrick distribute Cable Lugs & Cable Connectors to terminate, splice and joint LV MV HV cables – this includes copper, aluminium and bi-metallic connectors and a complete range of crimping tools for specific use on all Low, Medium & High Voltage cable types.
âž¡ Associated Brands & Products | Klauke | Cembre | Pfisterer Sicon | Cable Crimping & Cable Cutting Tools
Klauke Cable Crimping Cutting Tools
Spiking Cables
Pictured: One of Quartzelec’s cable jointers is applying a spiking gun to a cable on a recent substation installation project in Chester, UK in preparation for HV cable jointing. Cable spiking is the Quartzelec approved method of proving that any HV cables are not live before they are released for work.
Image Courtesy of: Quartzelec Limited
Quartzelec Limited provide a unique range of contracting services to a diverse range of clients in the industrial, infrastructure and commercial and services sectors. They offer design, construction, commissioning, inspection and maintenance of distribution networks from 415V to 33kV.
Press Release | Thorne & Derrick Appointed Approved Stockist for UK Leading Cable Pulling Equipment Manufacturer
Thorne & Derrick distribute an extensive range of Cable Pulling & Laying Equipment to enable the safe installation of fibre and copper cables within the telecommunications industry. Safely installed cables reduces operational and maintenance requirements to the network and reduced service interruption to telecom cables, wires, ducts, cabinets and exchanges – products include cable spiking tools, conduit rods, cable lubricant, cable socks and rollers.
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Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.
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Cable Grips
uploaded by Chris Dodds | Sales Marketing Manager at Thorne & Derrick International
Pulling & Supporting Power & Subsea Cables in the Wind Sector
Slingco have developed a range of cable grips (commonly referred to as cable socks) specifically tailored to the needs of the renewable energy sector – working with Slingco we have produced engineered and customised solutions using cable grip innovation for Boskalis, NKT, Nexans, DEME and other major cable laying contractors for the connection of wind farm projects globally.
Thorne & Derrick have extensive ranges of marine cable grips and hose restraint grips – applications including LV MV HV EHV cable installation (onshore and offshore), support and gripping of cables inside wind turbines, pulling cables shore-to land, substation cable laying and general cable management. We have also developed a range of cable pulling grips for use in the installation and pulling of inter-array and export cables from offshore windfarm installations. We offer a complete range for cable diameters up to 350mm , 10Te to 90Te+ MBL in galvanised steel, stainless steel and aramid fibre.
Cable Grips | Standard Double Eye Cable Support Grips are available for low/medium/high voltage power cable pulls and support with approximate break loads up to 27,000kgs, stainless steel 316 grade option and outside cable diameter capacity of 250mm. Customer Application Cable Grips available on request.
Option 1 – Limited Lay Down
Galvanised cable grips with aluminium ferrules are suitable for cable installation / loading and typically used for OSS pull in.
Option 2 – Limited Lay Down / Wet Storage
Galvanised grips with galvanised steel ferrules for installation / loading with limited wet storage that can be further extended for longer wet storage with the addition of an anode.
Option 3 – Lay Down / Wet Storage up to 1000 Hours
Stainless steel cable grips with stainless steel ferrules for laying and limited wet storage up to <1000 hours, subject to inspection after such time elapsed.
Option 4 –Â Lay Down / Wet Storage over 1000 Hours
Non-metallic grips in Aramid for used for cable laying and wet storage applications over >1000 hours, these would be the preference of the leading installation contractors based in the Netherlands and Europe, degradation was not seen other than some signs of salt on the surface. Non-metallic cable grips are specified to provide safe cable handling and are used for offshore saltwater environments when prolonged lay down durations are required.
Supplied by Thorne & Derrick
Pulling & Supporting Power & Subsea Cables in the Wind Sector | These cable socks manufactured from offshore/marine grade type 316 Stainless Steel are suitable for use in the renewable energy sector in applications such as cable installation (onshore and offshore), cable support inside wind turbines and cable management – used to pull, protect and support wind turbine cables. Pictured: June 2020 : the first of two export cables, each 37 kilometres in length, has been installed at the nearshore of Thorntonloch Beach as part of construction of the Neart na Gaoithe (NnG) Offshore Wind Farm.
For wind turbines, special features have been included to allow for minimal contact with the actual cable while still allowing impressive working loads and cable support. The range of cable support grips for wind turbines are woven from 316 stainless steel and feature rounded copper ferrules, offering reduced cable contact for high vibration environments. In addition to the standard range of catalogued cable grips and pulling socks we can offer a custom design service to suit your cable support requirements.
Single Eye | Double Eye | Lace-Up Grips for Marine Offshore Cable Support & Pulling | Extreme Heavy Duty for Underwater Application up to 550mm Cable Diameters
Hose Restraint Grips | Heavy Duty Hose Restraint Grips | Hose Armour Grips for Hose Protection | 316 Stainless Steel U Type Hose Grips | Prevents Whipping From Detached Pressure Hoses
Slingco has 40 years of experience manufacturing marine cable grips via their Distributor Network including Thorne & Derrick serving customers in over 70 countries worldwide – they are an award-winning supplier of high-quality cable grip, cable sock and wire rope products, having won the Queen’s Award for Export International Trade in both 2016 and 2020.
Large Cable Project Capacity & Delivery
Slingo and Thorne & Derrick are known for their excellent customer service, technical support and on-time order fulfilment – additionally we have the skills, experience and manufacturing capacity to deliver on the most challenging demands. From initial product design and manufacture to technical support and customer service, our aim is to become a partner you can trust for the safe installation, support and pulling of cable in the wind energy sector.
Client Confidence | Test Reports Certification
Quality matters in all industries, but none more so than those we serve. Every Slingco product is designed, manufactured and tested to exacting standards to ensure safe and reliable operation under the most challenging conditions – this level of customer service is backed-up with detailed test reports and relevant certification, all available on request.
Aramid | non-metallic / non-conductive marine grip manufactured from Aramid recommended for array / export cable installation were the cable needs to be laid down for a prolonged duration before installation.
Image Courtesy | Max States Site Engineer at Balfour Beatty plc (Viking Link) – here the EHV 526kV cable is pictured being pulled from a 62 tonne cable drum (1240m circuit) into the cable trench via rollers in July 2021. Viking Link is a 1,400 MW HVDC submarine power cable under construction between the United Kingdom and Denmark.
Thorne & Derrick distribute the most extensive range of Low & High Voltage Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors – this includes the most extensive range of Cable Pulling & Cable Laying Equipment to enable the installation of low, medium and high voltage power cables into underground trench or duct.
We service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV/33kV and up to EHV transmission and distribution voltages.
Key Products: MV-HV Cable Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Copper Earth Tapes, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.
Distributors for: 3M Electrical, ABB, Alroc, Band-It, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, ProGARM, Prysmian, and Roxtec.
Further Reading | Cable Drum Handling & Laying Cables | A Guide from Nexans
Published 02 Sep 2026
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...
Published 11 Aug 2026
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...
