Suitable For Explosive Atmospheres
Mita offer 4 main resin types to accommodate the requirements of various hazardous and industrial applications which can be chemically aggressive, demanding heated environments.
Thorne & Derrick together with Mita® can offer an extensive range of GRP cable support solutions that are suitable for any kind of application including non-metallic troughing, GRP cable ladders, CABSYS cable trays, ducts, cable support channels and Fibastrut as the brand continues to lead the industry towards a sustainable future for a wide range of low (LV), medium (MV) and high voltage (HV) cable installation applications.
The polyester type 1 carbon loaded referenced as PY1C is a type that has anti-static properties at it contains carbon powder. It therefore, requires grounding. Suitable for onshore and offshore oil and gas applications which are classified as explosive atmospheres.
PY1C Standards & Approvals
In 1988, Mita Holdings Ltd was born. In a short while, the company became a leading manufacturer of corrosion resistant industrial cable support products in the UK. In 2005, the company was acquired by Schneider Electric under the name of Mita (UK) Ltd. Mita name continued as a range name under the Schneider Electric brand. Finally, in 2021 the cable support division is acquired by the Swedish group, Storskogen, and is reborn as a stand alone company, Wibe Group.
MitaR is back as a leading brand in GRP cable support solutions. MITA brand is now powered by Wibe Group.
MITA have been supporting customers through their technical journey on choosing the correct product, manufactured from GRP, in cable support applications for almost five decades. MITA are now fully separated operationally from Schneider Electric. They now have a stand alone presence in the UK market with their “Made in UK” products which are fully compliant to the related cable management standards.
Self Ejecting Systems
Marechal plugs & sockets are available with a self-ejecting option this ensures that they are safely disconnected when a vehicle or portable equipment is moved. As a result workers are protected from electrical hazards, equipment damage is prevented and maintenance costs are reduced.
Marechal, a world leading manufacturer of Electrical Safety Plugs & Sockets have innovated self-ejecting plugs and power connector systems designed to protect people and plant from electrocution caused by accidental or intentional disconnection of power supply.
Self-ejecting plugs & sockets avoid the need to disconnect electrical equipment, allowing a mobile device to be moved without unplugging it, or where equipment is located in high-risk areas.
Marechal Self Ejecting Plugs. B = box, Sl = sleeve, S = socket outlet, I = inlet, Me = mechanism, H = handle and C = cord.
A Marechal plug can be ordered with self-ejecting features. When a self-ejecting female connector is ordered, the standard pawl on the connector is replaced by a shark’s fin pawl. When the device is installed, the pawl is attached to the power cable via a tension cord. Then if the connected equipment is moved, the tension cord lifts the shark’s fin pawl and the connector is ejected before damage can occur.
When a self ejecting male plug is ordered a shark’s spin mechanism is added to the plug. During installation, a tension cord is attached from the shark’s fin to the power cable. When tension develops in the power cable, the shark’s fin mechanism lifts the standard pawl on the female socket and the plug is safely ejected.
Self-ejecting connections are commonly used on truck hook-ups, cranes, railroad cars, refrigerated food carts, delivery vehicles, and other portable equipment.
Please note: That the self-ejecting feature requires modification to the socket that allows straight insertion and disconnection. Plugs and sockets modified for straight-insertion or self-ejecting are not Switch-Rated.
There are many applications where Self Ejecting Systems are a valuable asset:
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Minimise Equipment Damage
Self-ejecting plugs and sockets are designed to protect electrical system equipment from damage in the event of drive-away or drive-by snagging of a power cable. The ejection of the connector ensures there is no damage to the inlet, trailer, power cord or control panel.
Protect User: Safety First
Drive-away damage can leave trailer/mobile equipment inlets in an unsafe condition and result in live conductors being exposed on supply side/loading dock equipment, posing unexpected shock or arc flash hazards for subsequent users.
Improved Reliability & Uptime
Drive-away damage not only puts loading docks, supply trailers and other equipment out of commission until necessary repairs can be made, but may also affect the production or supply operations they are intended to serve.
Cost Reduction
One drive-away event can destroy the trailer inlet and mounting, the connector and power cable and the control panel, resulting in thousands of pounds of equipment damage and significant maintenance work for repairs.
Guidance Notes On Workplace Electrical Safety
“Cables, plugs, sockets and fittings must be robust enough and adequately protected for the working environment. Ensure that machinery has an accessible switch or isolator to cut off the power quickly in an emergency.”
| 20A / 32A RETTBOX® ONE WITH OR WITHOUT AIR |
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20A / 32A RETTBOX® S WITH OR WITHOUT AIR |
| 20 A > 150 A SELF-EJECTION DECONTACTOR™ |
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OPERATION SEQUENCE
Self-ejection systems avoid damage to the electrical installation when the mobile equipment is moved without removing the supply connection. They are designed to automatically release the mobile socket outlet or inlet thanks to a cord attached to the locking latch and the power supply cable.
Fixed Electric Power Supply
Step 1: Self-ejection system at rest.
Step 2: The traction acts on the electrical cable and the rope. The ejection lever gradually raises the latch.
Step 3: The latch is fully raised by the ejection lever, causing the automatic ejection of the plug.
Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are Specialist Distributors of Marechal plugs & sockets in the UK including ATEX and IECEx certified decontactors for LV electrical power distribution.
The range of Marechal plugs and sockets are available in a range of current ratings, switching capabilities, voltage supply and hazardous area certifications (according to ATEX & IECEx) for safe use in potentially explosive atmospheres – this includes Zone 1 & Zone 2 (Gas) and Zone 21 & Zone 22 (Dusts).
Panels | Plugs | Isolators | Enclosures | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Fans | Security Locking & Access Control
Thorne & Derrick | Stockists & Key UK Distributor
Uploaded by Natalie Lundie | Supply Chain: Marketing Lead at Thorne & Derrick
No Time for Downtime
Thorne & Derrick, the UK’s leading Specialist Distributor of Eltherm UK Ltd’s Electrical Process & Trace Heating Solutions were approached by a large UK based Data Centre who required a frost protection trace heating system for their chilled water lines. The solution needed to prevent the chilled water lines from freezing and the room from overheating which in turn could lead in the devastating loss of data.
The strategic partnership between Thorne & Derrick and Eltherm UK Ltd has proven to be successful, with the two companies serving clients in the commercial, industrial and hazardous area industries with their heat tracing cable and system requirements.
This recent order received by Thorne & Derrick is a direct result of the referral process established between the two companies earlier this year. The client was referred by Eltherm UK Ltd to T&D’s technical team who serviced the order within 48 hours!
Thorne & Derrick’s focus is on providing electrical heat tracing systems that are reliable, efficient and effective in a timely manner. Our in-house expertise means that we can provide expert advice and design bespoke solutions to meet your specific requirements.
With almost 40 years experience in designing and delivering over 3 million metres to complex systems and major projects worldwide, we understand that downtime can be costly, and our goal is to provide our clients with solutions that minimise downtime and maximise uptime, ultimately optimising revenue and profitability.
Thorne & Derrick are the UK’s largest stockist and supplier of Industrial & ATEX Trace Heating Systems for heating of pipework, tanks, drums and vessels.
How Does Heat Tracing Work In A Data Centre?
Data Centres house a large number of servers, which generate a significant amount of heat. Our internet connection is an umbilical, online life-line, to the outside world connecting friends, families and business so the stability of their facilities is crucially important.
If the temperature in a data centre becomes too high, it can cause equipment to fail, resulting in data loss, downtime and financial losses for businesses. Room cooling can be inefficient and expensive. Heat tracing prevents chilled water lines from freezing and the room overheating.
In this instance, this Data Centre had a particularly large amount of chilled water lines to ensure all their critical IT infrastructure can be kept cool. The IT equipment generates a significant amount of heat, so the chilled water lines play a crucial role in removing this heat and maintaining a consistent temperature. So the trace heating in this application is essentially being used to prevent the chilled water from freezing.
T&D’s Application Engineers supplied Eltherm’s ELSR-N and ELSR-W self-regulating heating cables. Ideal for this application as the ELSR cable has the ability to adjust its heating output in response to changes in ambient temperature. This will ensure that the chilled water lines are always kept at the desired temperature without overheating.
Once installed it will keep the chilled water lines free from frost and prevent any damage to their IT equipment. This particular cable is also suitable for use in hazardous areas and could be installed in within battery rooms should there be one on site zoned ATEX.
Thorne & Derrick were able to supply the cable from stock and 48 hours from the initial telephone consultation the cable was delivered on site.
Versatile self-regulating heating cable ELSR-N is suitable for freeze prevention & temperature maintenance in the low temperature range of industrial applications and is also approved for use in hazardous areas
The Agreement signed earlier in the year is supported by a record investment in stock levels with over 150 kilometres of cable ordered by Thorne & Derrick allowing us to be agile and quickly meet the needs of our customers as displayed in this particular case study.
Adam Rowe Technical Sales Engineer at Thorne & Derrick commented “Since the Agreement, our collaboration with Eltherm has already led to some successful projects wins thanks to the referral scheme. Looking forward to visiting Eltherm Germany’s HQ for product training in the new year. Even though I have 17 years experience in the industry there’s always room to learn more!”
Mark Wood Quote……………………………….
There are no shortcuts when it comes to mission critical operations like data centres. Fortunately, there are very practical, efficient and easily maintained solutions for keeping data centres cool and performing their best year around.
Here at Thorne & Derrick we understand the Data Centres require a significant amount of cooling to operate, and that heat tracing systems will prevent any unwanted freezing and keep your chilled water system healthy and happy even in the coldest weather conditions.
We can assist with the Competitive Supply & Technical Specification of trace heating systems and solutions to keep your facility operational, whatever the weather.
Since 1985 we have been providing expert technical support, competitive prices and an international delivery service for leading manufacturers of trace heating cables.
Our Team of Trained Sales Engineers are available to advise and support all your Trace Heating enquiries.
Thorne & Derrick provide a complete portfolio of Electric Process & Trace Heating Solutions for Industrial, Hazardous Area & Explosive Atmospheres,
Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are the largest stockist and supplier of Eltherm UK Ltd cables and electrical heating products in the UK including ATEX and IECEx certified electrical heating products.
Product Upgrades
Thorne & Derrick are pleased to announce that Raytec (world leaders in LED lighting for hazardous area environments) have recently made some upgrades to their SPARTAN Flood and Bulkhead products.
In the short article below Raytec explore some of the improvements in performance and efficacy of the SPARTAN hazardous area lighting range.
The introduction of the SPARTAN Mid Power Flood, combined with upgrades to the existing range, means Raytec now offer a comprehensive range of well-engineered, cost-effective floodlight solutions across a broad range of lumen outputs from 2,250 to 25,000 lumens.
See the full product index for the SPARTAN range here.
LED upgrades to the SPARTAN FL range, including the FL24 and FL48 Flood, have allowed us to increase the lumen output by an impressive 70%. Let’s compare the existing FL24 and FL48 products with the new updated versions, using the Zone 1 variants as an example;
| Old | New | |
| FL24 | 5,000lm / 68W | 8,450lm / 68W |
| FL48 | 10,000lm / 136W | 16,900lm / 136W |
| Efficacy | 74lm/W | 125lm/W |
| 70% improvement in lumen output and efficacy | ||
With these upgrades, the FL24 and FL48 Flood products will remain an important part of the SPARTAN portfolio; leading the floodlight range for emergency performance, as well as providing low voltage, extra low voltage, and DC solutions.
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| Raytec Spartan SPX-FL24 ATEX Floodlight | Raytec Spartan SPX-FL48 ATEX Floodlight |
Raytec have also made some improvements to the SPARTAN Bulkhead range with an LED upgrade which improves performance and efficiency. The upgraded LEDs have helped to reduce power consumption by 40% while maintaining the same light output.
| Old BL24 | New BL24 | |
| Standard Variant | 2,500lm (34W) | 2,500lm (20W) |
| Efficacy | 74lm/W | 125lm/W |
| 70% improvement in lumen output and efficacy | ||
They’ve also introduced an innovative new bracketry solution to the existing Bulkhead platform. The new bracket allows full rotation of the luminaire and delivers a cost-effective floodlight – the SPARTAN BL24 Flood.
The BL24 Flood replaces the existing SPARTAN FL12, which has now been made obsolete. In addition, a high-output version of the BL24 Flood, delivering 4,250lm, is also now available.
| Old BL24 | New BL24 | New BL24-HO Flood | |
| Standard Variant | 2,500lm (34W) | 2,500lm (20W) | 4,250lm (34W) |
| Efficacy | 74lm/W | 125lm/W | 125lm/W |
| 73% improvement in efficacy | |||
Raytec Spartan BL24 | Zone 1 Bulkhead Light Hazardous Area 2,500 Lumens
The 10,000 and 15,000lm variants of the High Power Flood and Bay luminaires have now been discontinued due to the release of the new Mid Power Flood and Bay variants, which offer the same output but as a more cost-effective and installation-friendly solution.
Available with dedicated Flood and Bay bracketry, the new Mid-Power luminaires provide users with great flexibility and are ideal for a wide range of applications. The SPARTAN Mid Power Flood and SPARTAN Mid Power Bay luminaires are fully certified for Zone 1/21 and Zone 2/22 hazardous areas, including ATEX, IECEx and UKCA.
Progression of Lighting Candle, Tungsten, Fluorescent & LED
Reducing Environmental Impact of Industrial Facility Lighting
Thorne & Derrick together with Emerson are guided by a belief that all businesses have a responsibility for the environment, a belief that is reflected in their commitment to innovation in Light Emitted Diode (LED) technology and its support for the transition from traditional lighting to LED in industrial facilities around the world through Emerson’s Appleton™ brand.
Over the past decade, LED lighting has proven to be a simple, cost-saving method for businesses to reduce their long term impact on the environment and minimise the burden of hefty electricity expenses.
➡ At Thorne & Derrick, we understand that harsh industrial or hazardous environments demand reliable & correctly certified equipment. That is why we are constantly striving to improve your operational performance by protecting you, your plant and your equipment. This includes upgrading a plant’s legacy lighting system or designing a new facility, you can count on us to specify the correct LED hazardous area lighting solution for your application.
Industry estimates suggest that 80-90% of the roughly 150 million lighting units installed in industrial facilities in the United States continue to rely on energy-draining High Intensity Discharge (HID) sources, specifically metal halide, mercury vapor and high-pressure sodium lighting.
Worse yet, fluorescent and incandescent lighting remains commonplace. LED luminaires create the same or better illumination as conventional lighting sources yet use less than half of the energy, making their higher upfront cost recoupable within months.
Industrial facilities that install LED luminaires also realize lower maintenance and repair costs since LED lighting typically operates at full capacity for more than 60,000 hours, or in some cases, up to 100,000 hours. That is 2- 4 times as long as most metal halide, or even sodium vapor lights, and more than 40 times the lifespan of the average incandescent bulb.
Alongside financial benefits, the environmental case for LED luminaires is strong. Consider the following list of ways LEDs help businesses shrink their environmental footprint while improving their bottom-line.
:bulb: Read More Upgrading To LED Hazardous Area Lighting Solutions
Almost half of our carbon footprint is due to electricity, generated by coal, gas, or nuclear power plants. First and foremost, LED lighting consumes significantly less power per lumen than any other lighting source.
LED lights are up to 80% more efficient than traditional lighting such as high pressure sodium and metal halide, with 95% of the energy in LEDs converted into light and only 5% released as heat. LED’s “Instant-On” capability is especially energy saving in industrial settings where HID lights are left on around-the-clock to avoid their long warm up-period.
HID lighting requires a warm-up period because the lighting intensity is dependent on and changes as the material inside the bulb is evaporated into plasma. Additionally, as the HID heats up, it requires additional voltage to operate.
Worse yet, HID lights become less efficient over time. They must use more and more voltage to produce the same lumen output as the light degrades. Roughly 17% of the typical US industrial building’s electricity usage is devoted to lighting. This takes a bite out of a company’s profits and out of the ozone layer.
Less energy use by LEDs translates into reduced demand from power plants and decreased greenhouse gas emissions. Greenhouse gases trap heat in the atmosphere, making the planet warmer by thickening the Earth’s blanket.
Greenhouse gases include Carbon Dioxide that enters the atmosphere through burning fossil fuels; Methane emitted during the production of coal, natural gas and oil; and Nitrous Oxide released in the combustion of fossil fuels and solid waste. Each of these gases can remain in the atmosphere for different amounts of time, ranging from a few years to thousands of years.
Due to their low energy consumption, LED luminaires contribute the least amount of carbon dioxide into the atmosphere of all lighting sources. For example, use of a simple incandescent bulb results in 4,500 lbs. of CO2 annually, while LED bulbs contribute only 451 lbs. of CO2 per year. Retrofitting HID fixtures with LED luminaires can have a huge environmental impact by reducing greenhouse gases.
IHS Markit, a London based company that analyses information and provides solutions for corporations, released a study that shows 570 million tons of carbon dioxide emissions were eliminated in 2017 thanks to the use of LED bulbs. This is an amount similar to shutting down 162 coal-fired power plants around the world.
Since LED lighting can last up to 20 years in some cases, this longer life also decreases the production of more luminaires and bulbs, and therefore reduce the greenhouse emissions created by the manufacturing process.
Despite growing concern about global warming, US emissions rose over 3% in 2018 and global emissions reached an all-time high. While commercial and household use of LED lamps is helping, far greater impact could be affected by full conversion of the industrial sector to LED.
Along with the economic benefits, the environmental contribution of retrofitting HID and other legacy lighting with high-efficiency industrial-grade LED lighting can be quantified using Emerson’s Lighting Retrofit Calculator.
A typical refinery, processing 100,000-150,000 barrels per day might have approximately 3500 70W high pressure sodium task lights and 100 400W high pressure sodium or metal halide flood lights. The table on the next page is reported from the calculator and shows the yearly environmental impact of retrofitting this example refinery to new LED luminaires.
The energy savings in this one facility would be equivalent to the usage of 229 American households. Power Plants, Petroleum and Natural Gas Plants, and Petroleum Refineries are the three largest emitters of greenhouse gases, and improvements in these facilities can have the biggest impact on overall US emissions.
Lighting Retrofit Calculator
Fewer Luminaires Needed
LEDs exhibit far superior light distribution by focusing light in one targeted direction as opposed to other types of lighting that waste energy by emitting light in all directions. As a result, fewer LED luminaires are required to achieve the same level of brightness given off by HID, fluorescent or incandescent lights. Fewer lights reduce energy consumption and therefore benefit the environment in many ways.
LEDs Run Cooler
LEDs give off very little heat. And what heat is produced is dissipated by metal heat sinks that wick away the heat from the light source. Lowering the facility’s temperature naturally reduces the power load on heat-sensitive systems, like air conditioning and refrigeration. Adding dimming, sensors or controls to LED fixtures can also reduce energy usage, while extending service life.
LEDs Don’t Contain Mercury
LED luminaires are mercury-free. Therefore, from cradle to grave, they are not toxic to the environment and are 100% recyclable, helping to reduce the amount of waste materials delivered to landfills. Both fluorescent and mercury vapor lights contain mercury internal to the bulb and thus require special handling at the end of their service life. While mercury is effective at enabling white light, it is also highly poisonous and is especially harmful to the brains of both foetuses and children. None of these health considerations are linked to LED technology.
| Reduction of kWh | 2,057,286 |
| Reduction of Carbon Dioxide Emissions | 1,530.62 Metric Ton 3,374,435 Pound |
| Electricity Saved (Average Household Usage for One Year) |
229 |
| Acres of Trees Planted | 1,801 |
| Reduction of Coal Emissions | 759.6 Metric Ton 1,674,639 Pound |
| Fewer Miles Driven (By Average Passenger Vehicle) | 3,751,520 |
Zero UV Radiation
Most HIDs emit a significant amount of UV radiation and require specific UV-blocking filters to meet safety standards in industrial spaces. When an industrial sized space is lit by many powerful HIDs, it becomes a safety concern for employees.
Health problems include skin damage, energy depletion, eye damage and worsening existing conditions such as lupus. Unlike HIDs, LEDs do not emit ultraviolet radiation. LEDs represent a healthier, cleaner source of lighting that doesn’t harm employees or the ozone, plus is any deal where there are materials stored that are highly sensitive to UV.
This is why museums around the world, including the Van Gogh museum in Amsterdam, have retrofit their lighting with UV-free LEDs and are preventing damage to priceless paintings.
Durable, Long-lasting Design
Appleton LED luminaires are the most rugged on the market and much more likely to survive harsh vibrations, corrosion or moisture on a plant floor during production. Even in the face of carelessness or accidents, the risk of damage is minimal. Not only does this keep employees safe, it also reduces a company’s contribution to landfill crowding, manufacturing, and resource use.
LED lighting needs in extreme conditions go beyond simple illumination. Facilities require optimal dispersion of light and products that will last with minimal maintenance. See the range of ATEX LED Lighting that Appleton offer tabled below:
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Baymaster™ LED High Bay Luminaires Outstanding quality and reliability, combined with our secondary optics and quick mount system, come together to create a luminaire that other high bays just can’t compete with. |
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Areamaster™ Generation 2 LED Luminaires: 9,000 – 38,000 lumens Flexibility and a patented thermal design ensures cool operation for long, maintenance-free life and safe use in practically any Class I, Division 2 or Class II hazardous location. |
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Code Master™ LED Factory Sealed Luminaires Easy to specify, install and maintain, the Code Master™ luminaire offers general purpose task or area lighting with a full range of lumen outputs and mounting options. |
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ATX™ FELED Series Nonmetallic LED Luminaires ATX™ FELED Series Nonmetallic LED Luminaires are available in either a standard or an emergency battery back-up version for use in Zone 1 and Zone 21 locations.
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Mercmaster™ LED Low Profile Series Luminaires Enclosed and gasketed Mercmaster™ LED Low Profile Luminaires are suited for tight spaces and low mounting heights, and are compatible with installed Mercmaster III mounting hoods. |
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ATX™ DEMULED LED Series Luminaires Zone 1 and 2 – 21 and 22 ATX™ DEMULED LED Series Flameproof Luminaires provide lighting and/or visual indication of access on exit routes during an evacuation in a hazardous environment.
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Thorne & Derrick are leaders in ATEX & IECEx Product Innovation providing Lighting, Heating, Ventilation and Security in Explosive Atmospheres.
Talk to us today about how we can improve operational safety, energy efficiency and optimise productivity in your hazardous areas.
We are 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 your UK and international projects.
Published 13 Mar 2020
Press Release Date: 02.04.2020 uploaded by Chris Dodds (T&D Sales + Marketing Manager) World’s First Fully Certified ATEX Doors Thorne & Derrick International, the Experts in Equipment for Explosive Atmospheres, today announce the signing of a Commercial Distribution Agreement...
Published 04 Jul 2019
Press Release Date: 04.07.2019 uploaded by Chris Dodds (T&D Sales + Marketing Manager) Category: Stockist Distributor Agreement Announcement Thorne & Derrick International announce that they have signed a Preferred Distributor Agreement with Raytec, the world leading manufacturer of LED...
