Cable Cleats

Convex Cable Hangers | Supporting Rail Cables & Tunnel Wall Applications

Convex Cable Hangers

Thorne & Derrick distribute a range of Cable Hangers, including convex cable hangers from Ellis, for low, medium and high voltage electrical systems; typically distributing LV 6.6kV-11kV-33kV electrical power.

Our cable hangers and accessories range include:

• Cable Hangers – Galvanised Steel Cable Hanging Systems (LV MV HV Cable)
• Cable Hangers – Non Metallic Cable Hanging Systems (LV MV HV Cable)
• Cable Hooks – LV MV HV Cable Suspension Hooks

Cable hangers support single or multiple cables – hangers are available in both galvanised steel and nylon and are used to support horizontal cable routes to building and tunnel structures. A complete range of steel cable hooks are also available compliant with 18th Edition of the IET Wiring Regulations (BS7671) is effective as of January 1, 2019.

CABLE hangers IN THE RAIL INDUSTRY

Convex Cable Hangers | Supporting Rail Cables & Tunnel Wall Applications

Investment in the rail sector has grown rapidly over the last decade and much greater funding is expected going forward. Both UK and worldwide, there is a growing ambition for more modern, reliable and sustainable mass transit systems.

Ellis has the most extensive range of cable cleat designs and accessories on the market which are suitable for all applications within the rail industry. Overground and underground rail sectors use an extensive range of cable types including telecoms, alarm and control cables, signalling and data, and a range of power delivery and electrification cables. Many rail cables are installed using cable hangers. Ellis has improved the design of the basic galvanised steel hanger with reduced weight, radiused corners (to reduce damage to cables during installation) and a convex hanger profile for cable sagging.

Cable hangers are curved to fit the profile of a tunnel to assist with tunnel wall applications.

These reduce the level of supporting steel structures necessary as the hangers can attach directly to the tunnel profile. Where the kinematic envelope of trains is tight and space is restricted, these profiled hangers provide an effective solution.

NEW convex cable hangers | ellis Patents

Ellis has now enhanced a cable hanger product that has been one of its best-sellers for over 20-years. The technical team have taken the company’s cable hangers, which are used primarily in the rail industry and made them stronger and, remarkably cheaper.

Stephen Walton, Ellis’ Technical Director, said: “We’ve been successfully manufacturing and selling our cable hangers for two decades, and it’s fair to say that the design is tried, tested and completely trusted by all those who use it.”

Ellis achieved this by looking at every aspect of the product and looking at ways to improve on it. The first key development is that there are two different versions of the new Ellis cable hanger – a standard Mk2 cable hanger, and a convex hanger; the latter designed specifically for use in tunnels, where the mounting surface is often curved.

Benefits of the new Mk2 cable hangers include:

• Rounded corners that reduce snagging points
• Spin galvanized (55µm or 150µm thickness) to protect against erosion
• Only 6mm thick, leading to reduced product and shipping costs
• Wide range of sizes available
• Suitable for cables up to 100mm diameter
• Custom designs available
• Rolled designs for tunnels available

Meanwhile, the convex cable hanger has all the benefits of Mk2, plus:

• The removal of all sharp edges presented to the cable by traditional hangers
• Through innovative design, it’s the same strength as Mk2, but only 5mm thick

Convex Cable hanger

Technical Information

Material: Galvanised Mild Steel

Application: Hang cables on walls and support structures

The NEW convex cable hanger are manufactured in Galvanised Mild Steel and have a curved back plate to suit tunnel wall applications. The convex profile of this hanger reduces the risk of cable damage and facilitates cable sag. The main use of these hangers is to hang cables on walls and support structures in the rail industry.

*Special designs available on request – e.g. Girder Hanging, 90° Twist, side by side cables.

*sample available on request

Convex Cable Hanger – Dimensions

RAIL CABLE ACCESSORIES, ELECTRIFICATION

& INSTALLATION EQUIPMENT

Thorne & Derrick supply an extensive range of 400V-33kV Rail Cable Accessories & Power Distribution Sytems including feeder pillars to contractors undertaking Low Voltage Power Distribution, HV Electrification & Substations, DC Traction & Networks, OLE and Track Feeder Cable Renewals – a complete range of Network Rail PADS approved track terminations, cable joints, cable repair and connection products up to 25kV, including 3M Cold Shrink, Pfisterer CONNEX and Nexans Euromold products.

Full range of Cable Pulling Equipment & Products to ensure safe and efficient of rail cables in to cable ducts and containment infrastructure including cable troughs.

Cable Tie Solutions for Wind Farm Cabling Management & Routing

uploaded by Chris Dodds | Sales Marketing Manager at Thorne & Derrick 

Thorne & Derrick, the UK Distributor for Panduit, have recently specified and supplied several UK renewable energy projects, including the Moray East Offshore Windfarm, with the Pan-Ty range of cable ties.

Panduit cable ties are extensively specified throughout the wind renewable energy sector for bundling, mounting and and the location of critical cabling infrastructure – synonymous with quality, reliability and performance Panduit provides the most comprehensive selection of cable tie styles, sizes, materials and colours to satisfy all specification requirements from nacelle to substation.

➡ BROCHURE Download | Wind Energy Capability

Safe & Strong, Whatever the Weather

The Pan-Ty Extra Heavy Duty range of cable ties manufactured from PA66 Weather Resistant Nylon Material resist damage or deterioration caused by Ultra-Violet Light and Outdoor Weathering with a holding force power of 1112N Loop Tensile Strength.

Effortlessly Taking the Strain 

Panduit ranges of cable ties feature a low thread force for rapid installation and rounded edges for safe handling – ergonomic hand tools minimise worker stress and strain effects by more than 40%. User fatigue and repetitive motion injury reduction contributes to improved health, safety and labour productivity.

Customer Choice

The Panduit Pan-Ty PLT5EH is available as either a Lashing Tie or No Lashing Buckle Tie. 

• Lashing Ties | Panduit PLT5EH-C0 Lashing Cable Ties are ideal for heavy duty applications. Extra-Heavy cross section, 20.1” (511mm) length. For indoor or outdoor use, made from Weather Resistant Nylon 6.6 with high resistance to ultraviolet light, are black in colour and come in packages of 100.

Panduit Cable Tie | Lashing Design

• Or as a conventional “No Lashing Buckle” Tie (Part Number PLT5EH-NB-C0) as well as in a variety of different lengths from 229mm to 1019mm.

Panduit Cable Tie | No Lashing Buckle Design

Renewables

Todays new energy sources are often located in harsh environments or remote locations.

Consequently, product reliability, installation speeds and safety are critical to successful operations. Panduit products provide maximum performance under extreme conditions including heat, cold, vibration, corrosive agents and high winds. Panduit’s uniquely engineered solutions are designed for applications across a projects life cycle enabling customers to minimise installation and maintenance times while maximising uptime.

How To Verify Total Absence of Voltage By The Push Of a Button

Innovation | VeriSafe is the first-of-its-kind voltage tester that determines the absence of voltage with just a push of a button.

Wiring Duct | Cable Terminals | Absence of Voltage Testing | Cable Cleats | Cable Identification | Cable Ties | Abrasion Protection & Heat Shrink | LV HV Cable Accessories | Lockout Tagout | Stainless Steel Cable Ties & Identification | Panel Systems | Grounding Connectors 

Thorne & Derrick are Specialist Distributors to the UK and international Offshore Wind & Renewable industry to provide safe and reliable LV HV Electrical Cable & Power Distribution Systems up to 66kV – we are highly customer responsive and absolutely committed to providing a world-class service.

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 HV 

See how T&D support, supply and service the Renewable Energy industry.

MV HV Cables 11kV 33kV 66kV | Cable Joints, Terminations & Connections

Ellis Patents Cable Clamps Make The Sorta Connection

Ellis Patents

Cable Clamps

Two-in-One Cable Guide Clamps

Innovative two-in-one cable guide clamps, designed and developed in Yorkshire by Ellis Patents, are being used to guide and secure 4.5km of power cables being installed as part of an enormous infrastructure project in Vestland, Norway.

The Sotra Connection is a new national road being built by the Norwegian Public Roads Administration between Bergen and Øygarden municipality. The N555 project includes the construction of a new road bridge, the demolition of nine high voltage power masts and the re-routing of the related power cables through a series of tunnels and underneath the current Sotra Bridge – an element of the project known as the Stømkabel Sotrasambandet.

Ellis Patents Cable Guide Clamps, which were originally developed to solve a live project installation problem for Siemens, are being used to guide the power cables into place, before securing them and providing protection in the case of a short-circuit.

Kelly Brown, Ellis Patents Head of Sales, said: “This is perhaps the biggest infrastructure project in a generation in Norway; and when complete will provide a modern and fast connection from the Sotra islands to the country’s second biggest city and beyond.”

“The fact that our Cable Guide Clamps were specified is a matter of pride for all at Ellis, and goes to show that our new innovations are every bit as trusted as the likes of our Emperor and Vulcan+ cable cleats, which helped to establish us as the world leader in our field.”

The Stømkabel Sotrasambandet specification was secured through Ellis Patents’ Norwegian distributor, Procab.

Ellis Patents Cable Guide Clamp

Ellis Patents’ innovative Cable Guide Clamp works in two stages.

Firstly, electrical power cables are guided by it into their final location; with trumpeted entry and exit points ensuring the cable is not damaged when fed through particularly sharp angled turns. Once the cable is laid correctly, the top half of the guide is removed, a fixing piece installed directly onto the cable and the top half re-secured, thus turning it into a fully-functioning HV cable clamp.

Thorne & Derrick are Specialist Distributors of the world market-leading range of Ellis Patents cable cleats for the protection, support and short-circuit retention of LV MV HV power, transmission and distribution electricity cables.

Leading Manufacturer of Cable Cleats & Cable Clamps

Further Reading

• IEC 61914 – Cable Cleats & Short Circuit Protection Calculations
• Fire Resistance & Cable Cleats – Surviving Fire, Flame & Extreme Heat
• Triplex Cleats – Selection Guide for Cleating 11kV BS7870 Part 4.10 Cables
• Stainless Steel Cable Cleats – Preventing Galvanic Corrosion Of Cable Fixings
• Ellis Patents Cable Cleats & Cable Basket Tray for Securing High Fault Level Cables
• Stainless Steel Cable Cleats v Ties – The Myths Debunked By Ellis Patents

Thorne & Derrick

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 HV 

The Importance of Cable Cleats within Data Centers

Panduit Cable Cleats

Cable Cleats in Data Centers

Data Center optimisation requires a reliable infrastructure to address power, cooling, assets, and connectivity challenges. In the below blog Panduit highlight why cable cleats are critical in supporting these vital goals.

In the information age, data centers and their task of continuous, safe storage of data make them critical facilities. If the data center isn’t reliable, productivity decreases immensely. Data centers house the organization’s most vital and proprietary assets. Hence, they are crucial to the continuity of daily business operations and the power required to operate the data racks in the data centers.

A study by Uptime Institute, an advisory organization, focused on improving the performance, efficiency, and reliability of business-critical infrastructures, surveyed 1,600 owners and operators in the data center sector. Ten percent (10%) of all respondents said their most recent significant outage cost more than $1 million.

Also, nearly 34% of all respondents have had a severe outage in the past three years, causing operators’ substantial problems. (1) Hence why Cable Cleats help to provide uninterrupted, safe power in the operations of data centers.

Assurance and Insurance Bundled Together

What is a Cable Cleat? Defined by the IEC International standard, a cable cleat is simply “A device designed to secure cables when installed at intervals along the length of the cables”. (2)

When it comes to a power distribution system, the potential damage from a short circuit fault can be catastrophic ― resulting in an arc flash event at a piece of equipment or power cables whipping about violently. These types of events pose a serious safety hazard to anyone nearby at the time it occurs, either during the initial power-up or afterward.

However, worker safety and equipment damage concerns are minimized by adhering to proven engineering design criteria and meeting documented codes and standards requirements. The best way to protect personnel and equipment near power cables during a short circuit fault is to restrain the cables.

The technology used in the creation of infrastructure projects continues to receive substantial investment. Still, according to a March 2020 survey by Panduit and EC&M, the majority of electrical engineers and electrical contractors are struggling to collectively understand the full benefits of cable management in electrical design—and the risks of ignoring it. Short circuit calculations aren’t being performed, and proper cable management solutions aren’t being specified.

The result is that nearly half of the survey’s engineer respondents (48 percent) indicate that cable cleats currently protect none of the power cable they specify. Only 44 percent of electrical contractor respondents specify cable cleats’ use on their power cable designs and puts the safety, productivity, ROI, and future scalability of entire projects at risk. Seventy-two percent of contractors still depend on plastic zip or cable ties to secure cables, and another 20 percent don’t use any cable fixing system. This leaves infrastructure and workers unprotected from potentially deadly damage. (3)

NEC 392.20(C)

Example of a Short Circuit test

In the U.S., NEC 392.20(C) is the National Electrical Code that governs the safety of the cable installations in cable tray. NEC Article 392.20(C) states: “Parallel connected single conductor cables shall be securely bound in circuit groups to prevent excessive movement due to fault current magnetic forces.” (4). While NEC 392.20(C) includes language for securing cables during a short circuit fault, it does not specify how to design the proper containment system to meet those forces. Often the lack of clear guidelines on short circuit protection in the NEC results in inadequate or no cable containment to protect against short circuit events in tray cable installations.

Europe has been utilizing cable tray systems for several decades and leads the industry in design standards and best practices. As such, the IEC 61914:2015 standard provides the testing methodology and process to ensure the reliability of cable cleats and ultimate protection in the event of a short circuit event. Cable in cable trays is only a safe and viable solution when paired with the right cable cleat solution to protect against short circuit events.

Unfortunately, NEC 392.20(C) does not currently provide adequate guidance on how to securely contain cables in the event of a short circuit when routing cables in a cable tray. To protect electrical infrastructure when using power cables in a tray, installing an IEC 61914:2015-compliant cable cleat is the best option when facing a peak short circuit fault.

Cable Cleat Examples – Panduit IEC 61914 2015

An Undefined Standard

All of Panduit’s electrical cable cleats have been third-party validated to meet IEC 61914:2015.

Because they exceed safety requirements of current U.S. electrical codes, they help future-proof your project against subsequent standards harmonization. Panduit’s cable cleat solutions were designed to withstand the stress of a short circuit event using a state-of-the-art ANSYS simulation software to model the dynamic forces at play.

Panduit’s Design & Testing Process

Also, our design and testing process has led to the development of the Cleat kAlculator™ mobile and desktop app. Many engineers do not specify cable cleats in part due to the necessary, but time-consuming fault calculations required. The Cleat kAlculator™ streamlines the process significantly by allowing engineers, designers, and installers to determine the correct cable cleat simply by inputting the cable layout, cable diameter, and peak short circuit current.

Panduit’s Cleat kAlculator Mobile & Desktop App

Data center optimization requires reliable infrastructure to address power, cooling, assets, and connectivity challenges. Protecting personnel and equipment should be an organization’s number one priority. With proper specification and installation of cable cleats, these solutions will support the critical goals.

Thorne & Derrick International, based in the UK, are Official Distributors for the Panduit range of cable ties and tools for industrial and hazardous area management of data, telecoms, control, instrumentation and power LV MV HV cables in industrial and hazardous area industries including oil/gas, petrochemical, rail, renewable, construction and mining/quarrying industries – this includes stainless steel cable ties used to clamp and cleat cables located in medium/high voltage MV HV onshore and offshore substations.

VIDEO How To Verify Total Absence of Voltage By The Push Of a Button

Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage voltage power systems:

• Slip-on Cable Terminations
• Cold-shrink Cable Terminations
• Heat-shrink Cable Terminations
• Cable Joints – Heat & Cold-shrink
• Separable Connectors (Euromold)
• Surge Arresters & Switchgear/Transformer Bushings

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 HV 

Securing Fire Resistant Sleeves On Critical Hoses & Wires In Jet Engines With BAND-IT JS Clamp

Stainless Steel Clamps

BAND-IT JS clamp

Securing Fire Resistant Sleeves On Critical Hoses & Wires In Jet Engines

Fighter jet engines operate in extremes: high altitude, cold air, and hot engines.

While rare, if a fire was to break out in the engine, fiberglass sleeving protects the critical hose and electrical systems to give the pilot a chance to extinguish the fire, land, or eject.

The BAND-IT JS clamp was selected to secure the sleeving in place because of its proven ability to handle extreme heat, extreme cold, and the vibration of the aircraft. The result is a consistent tension on the hose clamp and a sleeve that doesn’t loosen or slip during flight.

The BAND-IT Edge

• Minimal expansion/contraction from thermal changes
• High strength to weight ratio
• Consistent installation tools and smooth edge ensure the sleeve is tightly secured without damaging the sleeving
• Available in multiple alloys, including Alloy 625

Stainless Steel Clamp Product Features

• Stainless steel clamps have a higher melting temperature and longer life than plastic ties
• JS Clamps have a low buckle profile to prevent catching or damage to other components

BAND-IT Cable & Hose Clamps | Stainless Steel

Thorne & Derrick stock, supply and distribute the most extensive range of BAND-IT products to enable clamp, cleat, support, and identify cables, pipes and hoses.

➡ See also: Cable Cleats | Cable Clamps | Cable Ties | Cable Hangers | Cable Labels | Cable Tags

THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – we service UK and global businesses involved in cable installations, cable jointing, substation earthing, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

Since 1985, T&D have established an international reputation based on SERVICE | INTEGRITY | TRUST.

Contact us for 3M Electrical, ABB, Alroc, AN Wallis, CATU Electrical, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform , Furse, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Roxtec, Sicame, WT Henley.