ProGARM | 4690 Coveralls
ProGARM’S Mission is to Lead with Innovation
Introducing a new addition to the ProGARM range of Arc Flash Clothing – the ProGARM 4690 is a lightweight and comfortable high vis orange coveralls Tested to RIS 3279 Standard to protect workers in the rail industry.
These arc flash coveralls feature the improved lighter and more comfortable fabric.
Features and Benefits of ProGARM 4690 Coveralls
RIS-3279-TOM Tested Arc Flash Coveralls (Hi-Vis Orange) | ProGARM 4690
ProGARM 4690 arc flash coveralls are garment Tested to the following European Standards;
ProGARM for the Rail Industry | RIS-3279-TOM
RIS-3279-TOM (formerly known as GO-RT 3279) is a high visibility standard that only applies to the rail industry in the UK, as opposed to the EU-Wide nature of other EN standards. The aim is to ensure that rail workers on or near the trackside are sufficiently visible to trains approaching at speed or any other traffic.
High visibility clothing is the fundamental principle behind the UK Rail Industry Standard. This is based on the European Norm EN 20471:2013, and garments must comply to Class 2 High Visibility, the middle of a three class range. The standard states the following: ‘high visibility clothing worn by people on the lineside or on or near the line should conform to a single standard for the colour and luminance of background material and that this standard will accord with the detail contained within BS EN 20471:2013 high visibility clothing – Test methods and requirements (ISO 20471:2013).’
However It is stated in the standard that: ‘the colour specific requirements within this standard conform to the range specified within BS EN 20471 clause 5.1.2.’ In order to confine this to a specific orange colour, and to prevent the selection of a colour at the red end of the spectrum, the precise chromaticity co-ordinates for the colour are specified as: Fluorescent orange, X:0.588, Y:0.371. with a luminance factor of at least 0.4. The accepted tolerance in colour is as laid out in EN 20471. However, there is no tolerance for the luminance factor.
Also stipulated in RIS-3279-TOM is the need of retro-reflective materials, with photometric and physical performance aligned with EN 20471.
ARC Flash Coverall Range
Mentioned in RIS-3279-TOM is the accepted use of a mini vest where the nature of the work being carried out will not obscure the high visibility clothing, and thus reduce the surface area’ that is visible. The same applies to company logos; these are permitted where they do not compromise the surface area of background colour, and compensation may have to be made for this.
Arc Flash Coveralls, from the ProGARM range of Arc Rated garments and clothing are used to protect against arc flash accidents as the last line of defence. Arc Flash PPE will not prevent incidents, and it is therefore vital that a comprehensive electrical safety plan for maintenance, repair and diagnostic procedures (involving energised LV, MV or HV electrical equipment) is also implemented.
Thorne & Derrick distribute a range of arc flash coveralls to suit a range of requirements. Variations include ladies coveralls, designs for overhead linesmen, orange and yellow hi vis options and a wide range of sizes. Contact Thorne & Derrick with your specific PPE requirements and we will be happy to help.
The ProGARM range of Flame Resistant protective garments are designed for every-day wear and protection – the highly breathable clothing ranges are designed for comfort and safety without compromising the ability of the wearer to work productively, safely and unhampered by cumbersome garments prone to overheating.
Other garments and protection products include Arc Flash Gloves, Arc Clothing, Arc Flash Suits and Arc Flash Helmets & Visors.
💡 Did you know? – While high voltage equipment does increase the likelihood and intensity of arc flash explosions, they can occur in any live electrical environment – even low voltage.
Thorne and Derrick are proud to be distributors of ProGARM arc flash coveralls and protection.
We can help – should you require arc flash calculators or advice on the type of clothing and protection available please do not hesitate to contact us.
Arc Flash Covers | Protection Against Underground Strikes
The ProGARM range of protective garments deliver ultimate Arc Flash clothing and protection, conforming with the relevant industry and EN standards ensuring protection from Arc Flash incidents.
The Range of ProGARM 2800 are specially engineered to provide an extra protective layer against the risk of underground cable strikes, whilst at the same time providing an important visual hazard warning for those in the vicinity.
The Arc Cover is used as a warning not to dig near a cable and helping prevent the cable being hit, they provide you with additional protection against the risk of underground service strikes during the core activities you carry out on a daily basis.
Arc Flash Protection – EN Standards
Polo Shirts | Jackets | Coveralls | Trousers | Sweatshirts
Thorne and Derrick are proud to be distributors of ProGARM arc flash coveralls and protection.
We can help – should you require arc flash calculators or advice on the type of clothing and protection available please do not hesitate to contact us.
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 power systems:
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 MVÂ
DIY Expanding Foam vs MD5 Duct Sealing System | Filoform
Most UK utilities have banned the use of expanding foam as a measure to effectively seal cable ducts against water ingress, gas migration or fire spread. Failure to correctly and safely seal cable ducts can inflict catastrophic damage to LV MV HV Electrical Distribution Networks, Substations and Power Supply.
Thorne & Derrick International are the UK distributors for Filoform, a leading manufacturer of cable joints, duct seals and special resins for installation in the utilities, telecom, traffic, rail, fibre optic, street lighting and construction industries.
Polyurethane foam (PU) has witnessed a increase in popularity as a construction material due to its versatility. PU can be applied to walls, roofs, ceilings, floors providing insulation and structural support. Technological advancements have overcome engineering challenges, allowing for low-density foam products that are easy to install on-site.
Duct Seals – Sealing Cable Ducts
Whilst expanding foam serves well for sealing small gaps, filling voids, cracks and insulating it falls short beyond these applications. Often comprised of subpar polyurethane, many expanding foams lack the necessary properties for effective sealing or adhesion.
The use of expanding foam in construction and maintenance projects across various industries have grown over time; however it faces major problems when applied wrong, or designed into a project where the foam specifications doesn’t match the requirements of the projects.
Assessing the particular duct seal scenario and determining the project’s goals are important when selecting an efficient seal. Taking into account elements such as :
During the design phase choosing a sealing system that fits the needs of the entire project should be made easier by taking the circumstances into consideration.
Sealing Ducts require precision, a professional would strongly advise against using DIY expanding foam for this purpose due to potential complications. For guidance in your inquiries please contact us today!Â
| Properties | Generic expanding foam – DIY stores | MD5 Duct Sealing Resin – Two Components |
| Cell Structure | Large, Weak, soft foam – 70% closed | 100% closed, small, strong, durable |
| Expansion Rate | 35 x can volume – Very quick & controlled | 8 x volume – Slow & easy to control |
| Temperature Resistance | +194°F / +90°F | +248°F / +120°F |
| Compressive Strength | 3 Newton / cm² / 0.67 pounds of force | 60 Newtons / 14 pounds of force |
| Resistance to Hydrocarbons | No | Yes |
| Water Resistant | Yes – temporarily | Yes permanently – upto 1.5 bar / psi |
MD5 Sealing System vs DIY Expanding Foam | FILOFORM
It is important to evaluate specific duct sealing situation and identify the objectives of the seal. For example:
This process should take place during the design phase aligning the seal requirements with the overall product specifications. Generally, a design specification will encompass gas, water and fire resistance along with specified chemical resistance. However any reputable seal manufacturer should be able to furnish evidence regarding the expected lifespan.
Duct sealing and sealing products manufactured by Filoform are installed to provide gas tight and watertight sealing for cable duct entries – protecting underground cables and substation ducting infrastructure against flood and migration of flammable and toxic gas hazards. Fire resistant version also available – suitable for sealing LV-HV power, telecoms and fibre optic cables.
Filoform manufacture and supply quality products and solutions to connect, seal and protect low, medium and high voltage underground cable networks.
Thorne & Derrick provide competitive prices and fast delivery from stock for the complete range of Filoform duct seals and cable joints.
View the complete range of Filoform products.
FiloSeal+HD Duct Sealing System
Mitigating Risks | High Voltage Systems | CATU
Protecting against accidents in LV MV HV Systems
CATU’s electrical insulating matting provide electrical safety protection for individual and collective protection for workers involved on LV MV HV installations for voltages of 3.3kV, 6.6kV, 11kV, 15kV, 20kV and 33kV – generally used in conjunction with additional PPE such as insulating gloves for worker safety.
Insulated Mats, manufactured by CATU Electrical Safety and distributed by Thorne & Derrick, made from elastomer are used to cover ground for electrical protection of operators during work or interventions on electrical installations.
By incorporating insulated matting into safety protocols, the EV sector can enhance workplace safety, comply with industry standards and mitigating any risks associated with high voltage systems in electrical vehicles.
The mats are tested to IEC61111 and certification is provided upon request.
Insulating Matting | Thorne & Derrick hold the largest stocks in the UK of all types and Class of electrical matting for LV MV HV substations and switchgear applications to protect workers from protect people from hazardous electric shocks.
EV insulated matting is commonly used for a variety of reasons:
Meeting these specific standards is essential for creating a safe working environment and ensuring the well-being of technicians.
EV Insulated Mats | Compliance with IEC Standards
Insulated Mats, manufactured by CATU Electrical Safety and distributed by Thorne & Derrick from elastomer is used to cover ground for electrical protection of operators during work or interventions on electrical installations. By incorporating insulated matting into safety protocols, the EV sector can enhance workplace safety, comply with industry standards and mitigating any risks associated with high voltage systems in electrical vehicles.
The withstand test of insulating matting for electrical insulation is applied to each manufacturing batch of switchboard matting to ensure it does not have an electrical breakdown if exposed to high voltages – the working and withstand voltages must not be confused.
The proof test of insulating matting are dielectrical resistance tests provided by the mat manufacturer on the total running metre of the product and are used to safeguard a standard conformity of resistance throughout the entire section, roll or surface area of the electrical mat – the proof test must be applied to the insulating mats for a set time at a specified voltage level.
The information table below highlights and explains the IEC standard classification according to the maximum working voltages for rubber insulating matting.
| Class Of Insulating Matting According To IEC61111 | Proof Test | AC Maximum Working Voltage | Withstand Test Of Insulating Matting |
| Class 0 Matting | 5kV | 1000V – LV Low Voltage | 10kV |
| Class 1 Matting | 10kV | 7500V – MV Medium Voltage | 20kV |
| Class 2 Matting | 20kV | 17000V – MV Medium Voltage | 30kV |
| Class 3 Matting | 30kV | 26500V – MV Medium Voltage | 40kV |
| Class 4 Matting | 40kV | 36000V – HV High Voltage | 50kV |
High Voltage Electrical Safety
Insulating Matting | Voltage Detectors | Substation Kits | Phase Comparators
Arc Flash Clothing | Polo Shirts | Jackets | Coveralls | Trousers | Sweatshirts | Helmets
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 power systems:
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 MVÂ
Thorne & Derrick stock and distribute a complete range of IEC61111 insulating matting for electrical safety, protection and working on low, medium and high voltage substations and switchgear up to 33kV – the IEC61111 standard provides a selection category for Low Voltage (1000V) to High Voltage (36kV).
Cable Cleats Offshore Windfarm
Ellis Patents, a global leader in the manufacture and innovation of cable cleats, including the Emperor and Flexi Straps range are being installed in the first offshore windfarm in the USA to use a high voltage direct current system (HVDC) to deliver power onshore; the advantages of HVDC are as follows:
The Sunrise Wind Offshore Wind Farm is a significant step towards New York’s clean energy goals. When it is completed the 800MW windfarm will power nearly 600,000 households with renewable electricity by 2025 and help New York accomplish a carbon-free energy grid by 2040.
Sunrise Wind Offshore Wind Farm
Experts at Ellis Patents worked closely with the UK Design Team on this. This ensured the highest safety standards and optimal cable management on the offshore platform.
Furthermore, the platform is characterised by a steel jacket substructure and a topside deck housing essential electrical equipment and is the heart of the windfarms operations.
Kelly Brown Ellis Patent’s Sales Director made a statement on this. She said: “Sunrise Wind is a major project for the advancement of the wind sector in the US and having Ellis Cable Cleats installed gives us a huge feeling of pride to be involved in something on such a global scale. This clearly demonstrates the trust in Ellis’ expertise in cable management to enhance safety and efficiency in the offshore platform”.
The Offshore Converter Station is designed to collect the 66kV alternating current (AC) power generated by the wind turbines, relies on a robust subsea export cable that spans an impressive 100 miles to connect to the onshore converter station located at Holbrook on Long Island. The onshore converter station plays a vital role in converting the power back to AC before feeding it into the distribution grid, ensuring clean energy reaches homes, industries, and other end-users across New York.
Ellis provided a cable cleat and management solution tailored to the unique performance requirements of the Sunrise Wind Project.
The Ellis Patents Cable Cleats and Flexi-Straps were installed in the first offshore wind farm. This also played a pivotal role in securing and supporting the cables in the challenging offshore environment.
Emperor Cable Cleats
Ellis Patents Flexi Straps
Manufactured by Ellis Patents, the Emperor Cable Cleats are 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. This helps them provide ultimate corrosion protection, even in the harshest of environments.
Thorne & Derrick | Cable Cleats | Ellis Patents UK Distributors
Specialist Distributors of High Voltage Jointing & Electrical Safety Equipment
Further Reading
Thorne & Derrick International are Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
Key Product Categories: Connectors, Joints & Terminations MV HV | Cable Preparation & Jointing Tools | Duct Seals | Cable Transits | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Clothing & Protection | Cable Pulling | Earthing & Lightning Protection | Feeder Pillars
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.
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