Arc Flash Protection
Caring & Maintaining Arc Flash Clothing by CATU Electrical
April 14th, 2022
Heavy-Duty Arc Flash Clothing
Industrial Washing & Drying
Maintaining Arc Flash Clothing For Long Term Multi-Risk Protection
The CATU range of Arc Flash Clothing Kits are comfortable, lightweight and range from 12 cal/cm² – 40 cal/cm². The Pro Kit gathers a selection of essential garments to guarantee protection against electrical arc risks – should you require guidance on selection and use of an Arc Flash Calculator please call Thorne & Derrick.
Thorne & Derrick stock and distribute an extensive range of arc flash clothing and protection available in a range of sizes and cal ratings to ensure protection against the dangers and risks of arc flash hazards manufactured by market-leading specialists CATU.
The CAT’ARC range now offers multi-risk and Arc-Flash protection from 12 to 40 cal/cm². These comfortable garments are worn on a daily basis and therefore need to be cleaned regularly. CATU helps you to maintain their protection levels, even after many washes.

Technical and innovative, the 12 cal/cm² CAT’ARC garments have been tested according to the ISO 15 797 standard, which certifies that they retain their properties throughout their period of use. This standard verifies that our garments support global industrial maintenance solutions offered by service providers, such as professional laundries.
The arc flash protective garments were subjected to 50 wash cycles at 75 ° C and drum drying at 70 ° C – this makes it possible to check the maintenance of the different protections, the dimensional stability, the behaviour of the colours, the wrinkling, the formation of creases, the pilling and the visual.
12 Cal Arc Flash Protection Kit


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- Flame spread (ISO 11612 – A1 A2)
- Source of heat emmited by convection, radiation, or contact
- (ISO 11612 B1, C1, F1)
- Molten metal spatter (ISO 11612 E2)
- Protection against welding hazards (ISO 11611 class 2)
- Electrostatic dissipation (EN 1149-5)
- Arc-Flash resistance
- box test (IEC61482-1-2 / Box Test APC 1)
- Mechanical strength (tensile, tear)
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The innovative CAT’ARC 25-40 cal/cm² fabric has been subjected to 50 complete wash cycles at 40°C and tumble drying at 60°C, in accordance with ISO 6330, Household Washing and Drying Methods for Textile Testing. This standard verifies that our garments can withstand the care solutions. Thus, the fabric has been tested and validated after 50 industrial wash-dry cycles for the following performances:
25-40 Cal Arc Flash Protection Kit


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- Flame spread (ISO 11612 – A1 A2)
Source of heat emmited by convection, radiation, or contact - (cf ISO 11612 B1, C2, F2)
- Protection against welding hazards (cf ISO 11611 class 2)
- Electrostatic dissipation (EN 1149-5)
- Arc-Flash resistance
box test (IEC61482-1-2 / Box Test APC 2) - Mechanical strength (tensile, tear)
- Flame spread (ISO 11612 – A1 A2)
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Caring & Maintaining Arc Flash Clothing
Some Tips On How To Care For Your Garment
As a reminder, the useful life of clothing depends on the use of the PPE, maintenance, storage, etc. it is therefore important to take good care of your clothing and adapt the frequency of washing to the working conditions and the degree of soiling. To wash your garment properly, there are a few simple tips to follow:
- Close all hook and loop fasteners and zips. Empty all pockets.
- Turn the arc flash garment inside out to avoid damage from rubbing against the machine drum.
- Wash separately the arc flash clothing. Do not mix with ordinary garments without similar protective properties.
- Recommended washing temperature: 40°C (104ºF).
- Do not bleach the clothing.
- Tumble dry possible at 60ºC (140ºF)
Arc Flash PPE & Electrical Safety
Main UK Stockists & Distributors of Electrical Safety Products
Thorne & Derrick provide Electrical Safety Equipment to substation engineers, cable jointers, overhead linesmen and utility workers with PPE and electrical safety equipment including insulating gloves, voltage detectors, insulating matting and portable earthing to ensure worker safety when carrying out maintenance on LV-HV switchgear, substations, cables and electrical equipment.

We protect substation engineers, asset managers, SAPS, cable jointers, overhead linesmen and utility workers with PPE and safety equipment: this includes insulating gloves, voltage detectors, insulating matting and portable earthing to ensure worker safety when carrying out repair and maintenance on LV-HV switchgear, transformers, substations and turbines.
All our Cable Connection & Energisation Accessories including Medium & High Voltage joints, terminations, connectors and cleats are tested to the latest international standards and supporting ranges of professional cabling tools are stocked to reduce incident, accident and downtime to plant and people.
Arc Flash Protection & Electrical Safety | 15 Measures to Mitigate the Hazards of Arc Faults
April 12th, 2022
Arc Flash Protection & Electrical Safety Products | Distributed By Thorne & Derrick
Arc flash Protection
An arc flash is the light and heat produced as part of an arc fault; a type of electrical explosion or discharge that results from a low impedance connection through air to ground or another voltage phase in an electrical system.
In industries working around high and low voltage electricity, the importance of Electrical PPE and arc flash protection is widely recognised, and the latest electrical safety requirements are understood by managers and operatives alike.
However, the dangers posed by an arc flash are not so well known in comparison. With temperatures of up to 35,000ºF, which is more than four times hotter than the surface of the sun, an arc flash has the potential to burn an operative’s skin within fractions of a second, meaning PPE really is the last line of defence for workers.
In the face of the internal arc fault risk present in low and medium voltage switchgear, prevent accidents to protect the personnel and the electric installation itself by following this proven formula.
Condition
Knowing and improving the condition of the equipment is a key factor in reducing the likelihood of failure, damage, and injury. is comprised of condition, distance, time, and training.
- Risk Assessment study – Asset risk assessments to establish the risk profile of equipment based on its condition and importance in the system, and prioritize actions to mitigate the risk before the hazard occurs
- Monitoring programs – Risk monitoring and mitigation programs to maximize improved reliability and reduced operator exposure
- Upgrades and retrofit – Equipment upgrades and retrofit which decrease operator exposure because of reduced maintenance, faster cycle times, and lower clearing times
- Diagnostic testing – Diagnostic testing to address concerns of bad connections, pollution, mechanical faults and minimize failures due to defective devices
Distance
Maintaining a safe distance between personnel and equipment during critical operations provides the most effective means of avoiding injury by keeping people out of harm’s way
- Remote racking – Remote racking provides a safer operating environment for personnel through the proven method of adding distance between the operator and arc flash incident energy at the switchgear site, bringing operation of power circuit breakers to a new level of safety. ABB vacuum circuit breakers can be provided with a fully integrated motor operated racking system for their use in new replacement switchgear or as part of the hard-bus and cradle-in-cradle retrofill solutions.
- Voltage indicators – The installation of voltage indicators on accessible power circuits can increase the operators safety and avoid accidental electrical contact injuries. VisiVolt is an ABB passive voltage indicator perfectly suiting the equipment upgrade. It is adapted for permanent installation on busbar and naked or insulated metal conductors, indicates the presence of voltage by displaying a large and well visible lightning arrow sign on its display. The relevant silicone elastomeric enclosure ensures performance also in outdoor conditions while its fluorescent orange colour provides good visibility among the other elements of the system.
- Infrared thermo-graphic inspection – Infrared (IR) thermal measurements are performed through dedicated arc-proof ports with power compartment doors closed. The periodic thermo-graphic inspection of the critical areas (e.g. power cables connections) is an efficient method for preventing associated faults. Ports can be added to existing switchgear by ABB expert engineers keeping the original equipment design characteristics.
- Partial discharge measurements – Periodic measurement of the partial discharge (PD) level is a proven method for detecting insulation degradation before real insulation failure develops. The assessment results are documented as trend curves for each switchgear compartment, where the curves with high increase of partial discharge activity level indicate compartments with high risk of insulation failure. Site work is performed with closed doors.

Time
Reduction of time for clearing fault conditions has a dramatic impact on the energy released and consequent damage and injury.
- MV equipment faults: relay upgrades with Relion® – microprocessor equipment which operate faster than electromechanical relays and support faster clearing times.
- Short-circuit current: Is-Limiter device – Is-limiter device as a fast operating interrupting device that limits the short circuit current to a level that breakers and buses can withstand, protecting property and personnel. Replacement of existing switchgear and cable connections with new equipment with higher short-circuit ratings can be technically impossible. The use of Is-limiters reduces the short-circuit current in extensions of existing systems and in new systems. The Is-limiter is capable of detecting and limiting a short-circuit current during the first current rise in less than a millisecond.
- Arc-faults: REA arc fault detection system – REA arc flash protection relay uses patented fiber-optic sensor technology that instantaneously detects light from an arc to signal a “trip” to the designated circuit breaker in less than 2.5 ms, minimizing an arc flash incident.
- Arc-faults: Upgrade with UFES – UFES, an ultra fast earthing switch, provides detection and grounding of faults in times significantly faster than breaker clearing times, leading to the avoidance of injury and damage and the reduction of production outages. A device as small as an insulator offers enhanced protection for your switchgear by the effects of internal arcs. The UFES arc protection system channels the uncontrolled release of energy by the arc into a solid metal, 3-phase connection to earth potential. The internal arc will be extinguished within an operation time of < 4ms after detection of the fault.
Training
Adequately trained personnel and proper procedures are essential to safe operations
- Personnel training – Training engineering and technical services provide personnel with a better understanding of their equipment and systems and the safest means to operate them.
- Procedure development – Arc flash studies help to determine the necessary level of protective equipment or clothing (PPE) to be worn by workers in close proximity to potential arcs and also help determine the proper application of any arc flash protection equipment to be installed.
- Engineering studies – Engineering studies determine the proper settings and system coordination, while addressing the speed of the system to handle a fault so relays and associated protective devices are set properly in order for the system to react as designed.
Electrical Safety Providers
We protect substation engineers, asset managers, SAPS, cable jointers, overhead linesmen and utility workers with PPE and safety equipment: this includes insulating gloves, arc flash clothing, voltage detectors, insulating matting and portable earthing to ensure worker safety when carrying out repair and maintenance on LV-HV switchgear, transformers, substations and turbines.
All of our Cable Connection & Energisation Accessories including Medium & High Voltage joints, terminations, connectors and cleats are tested to the latest international standards and supporting ranges of professional installation tools are stocked to reduce incident, accident and downtime to plant and people.
STRATA Workwear | Skanwear Arc Flash Clothing & Protection
February 14th, 2022
STRATA Workwear Arc Flash Protective Clothing Range
Thorne & Derrick are the UK’s Leading Specialist Distributor of Electrical Safety Equipment to clients working in the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors – we supply arc flash clothing from a range of brands including STRATA® Protection.
STRATA® Protection a the leading Arc & Flame Protective Clothing brand in the Energy Sector including switching suits for the protection of workers.
All of the garments in the range are globally tested and certified to both European and North American Arc Flash, Flame Retardant and Hi-Visibility standards. The garments not only protect the wearer from a potentially fatal hazard, but are highly robust to handle wear and tear. STRATA Workwear sizes range from ‘extra small’ (XS) all the way through to 4XL.

STRATA Workwear | Arc Flash Clothing Kits
A range of full certified Arc Flash Clothing Kits to provide total protection against arc flash risks for wearers working on or near live electricity (energised), at LV, MV HV power systems.
| STRATA Part Number | Description | Cal Rating | Size | Colour |
| SFX576 | ARC Complete 40 cal Kit inc Holdall | 40 cal/cm² | XS – 4XL | Navy |
| SFX866 | STRATA Complete 9.2 cal Kit inc Holdall | 9.2 cal/cm² | XS – 3XL | Navy |
| SFX251 | STRATA Complete 25.6 cal Kit inc Holdall | 25.6 cal/cm² | XS – 3XL | HV Yellow/Navy |
| SFX120 | 100 cal Arc Flash Kit inc Holdall | 100 cal/cm² | S – 3XL | Royal Blue |
STRATA Arc Flash Garments
Arc flash garments including shirts, jackets, overalls and coveralls.
| STRATA Part Number | Description | Cal Rating | Size | Colour |
| SFX101 | STRATA ARC T-Shirt | 8.8 cal/cm² | XS – 4XL | Navy or Grey |
| SFZ228 | ARC Long Sleeve T-Shirt | 6.3 cal/cm² | S – 3XL | Black |
| SFZ100 | ARC Long Johns | 6.3 cal/cm² | S – 3XL | Black |
| SFV101 | STRATA® ARC Hi-vis T-Shirt | 8.8 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFX503 | STATA® ARC Poloshirt | 11 cal/cm² | XS – 4XL | Navy or Grey |
| SFX600 | STRATA® ARC Sweatshirt | 19 cal/cm² | XS – 4XL | Navy or Grey |
| SFX610 | STRATA® ARC Hoodie | 19 cal/cm² | XS – 4XL | Navy |
| SFV503 | STRATA® ARC Hi-vis Poloshirt | 11 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFX302 | STRATA® ARC Classic Shirt | 9.3 cal/cm² | XS – 4XL | Navy or Grey |
| SFV342 | STRATA® ARC Hi-vis Shirt | 8.5 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV408 | STRATA® ARC Hi-vis Jacket | 12 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV443 | STRATA® ARC Hi-vis Jacket | 9.1 cal/cm² | XS – 3XL | Hi-vis Yellow |
| SFX407 | STRATA® ARC Dual Layer Jacket | 27.5 cal/cm² | XS – 4XL | Grey |
| SFX243 | STRATA® ARC Service Trouser | 9.1 cal/cm² | 30″ – 52″ | Navy |
| SFX240 | STRATA® ARC Global Cargo Trouser | 12 cal/cm² | 30″ – 52″ | Grey |
| SFV210 | STRATA® ARC Hi-vis Trousers | 12 cal/cm² | 30″ – 52″ | Grey/HVYellow |
| SFV207 | STRATA® ARC Hi-vis Tool Trouser | 12 cal/cm² | 30″ – 52″ | Navy/HVYellow |
| SFV243 | STRATA® ARC Hi-vis Service Trouser | 9.1 cal/cm² | 30″ – 52″ | Navy/HVYellow |
| SFV899 | STRATA® ARC Hi-vis Dungarees | 10.1 cal/cm² | 30″ – 52″ | Navy/HVYellow |
| SFV839 | STRATA® ARC Hi-vis Overall | 9.1 cal/cm² | S – 3XL | HVYellow/Navy |
| SFX876 | STRATA® ARC Global Overall | 10.1 cal/cm² | XS – 4XL | Grey |
| SFX863 | STRATA® Lightweight Overall | 9.2 cal/cm² | S – 3XL | Navy |
| SFV730 | STRATA® Hi-vis Ladies Shirt | 9.2 cal/cm² | XS – 2XL | Hi-vis Yellow |
| SFV740 | STRATA® Ladies Hi-vis Jacket | 10.1 cal/cm² | XS – 2XL | Hi-vis Yellow |
| SFX751 | STRATA® ARC Ladies fitted Poloshirt | 11 cal/cm² | XS – 4XL | Navy or Grey |
| SFV751 | STRATA® ARC Hi-vis Ladies fitted Poloshirt | 11 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV722 | STRATA® ARC Hi-vis Ladies Trouser | 12 cal/cm² | XS – 2XL | Navy/HVYellow |
| SFX722 | STRATA® ARC Ladies Trouser | 12 cal/cm² | XS – 2XL | Navy or Grey |
| SFX405 | STRATA® ARC Softshell Jacket | 28 cal/cm² | XS – 2XL | Navy or Grey |
| SFX404 | STRATA® ARC Fleece | 11 cal/cm² | XS – 2XL | Navy or Grey |
| SFV405 | STRATA® ARC Hi-vis Softshell Jacket | 28 cal/cm² | XS – 2XL | Hi-vis Yellow |
| SFV940 | STRATA® ARC Hi-vis Waterproof Jacket | 23 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV945 | STRATA® ARC Hi-vis Winter Jacket | 23 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV920 | STRATA® ARC Hi-vis Waterproof Salopettes | 23 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV925 | STRATA® ARC Hi-vis Winter Salopettes | 23 cal/cm² | XS – 4XL | Hi-vis Yellow |
| SFV982 | STRATA® ARC Hi-vis Waterproof Coverall | 23 cal/cm² | XS – 4XL | Hi-vis Orange |
| SFV942 | STRATA® ARC Hi-vis Waterproof Jacket | 23 cal/cm² | XS – 4XL | Hi-vis Orange |
| SFV922 | STRATA® ARC Hi-vis Waterproof Salopettes | 23 cal/cm² | XS – 4XL | Hi-vis Orange |
Accessories
STRATA workwear arc & flame protective accessories, holdalls and backpacks.
| STRATA Part Number | Description | Cal Rating | Size | Colour |
| AHEAD2 | STRATA Electrical Safety Backpack Kit | 14 cal/cm² | One Size | Blue/Grey |
| SFZ818 | ARC Balaclava | 6.3 cal/cm² | One Size | Black |
| SFZ819 | ARC Headover Neck Gaitor | 11 cal/cm² | One Size | Black |
| PPE187 | ARC Electro Ear Defenders | – | One Size | Yellow |
| SFZ999 | STRATA® FR Belt | – | M/L, XL/2XL | Black |
| SKZ954 | Foam Kneepads | – | One Size | Grey |
| SKZ500 | Daytona Sports/Kit Holdall | – | Large | Black |
| FWB165 | STRATA® Waterproof Electrical Safety Boot | – | 3 – 13 | Black |
| FWW301 | Dielectric Wellington | 40 cal/cm² | 3 – 13 | Yellow |
| SKZ001 | Backpack With Helmet Holder | – | One Size | Blue/Grey |
Gloves
The full range of electricians gloves, arc utility gloves, insulating gloves and engineers gloves ranging from ARC Class 00 – Class 4.
| STRATA Part Number | Description | Cal Rating | Size | Colour |
| PPE208 | Electrical ARC Composite Gauntlet Class 00 | 12 cal/cm² | 8 – 11 | Orange |
| PPE209 | Electrical ARC Composite Gauntlet Class 0 | 12 cal/cm² | 8 – 11 | Orange |
| PPE210 | Electrical ARC Composite Gauntlet Class 1 | 12 cal/cm² | One Size | Orange |
| PPE211 | Electrical ARC Composite Gauntlet Class 2 | 12 cal/cm² | One Size | Orange |
| PPE214 | Electrical ARC Composite Gauntlet Class 4 | 40 cal/cm² | One Size | Orange |
| PPEBAG | Electricians Glove Bag | – | One Size | Black |
| PPE003 | Electricians Gloves Class 00 | – | 8 – 11 | Orange |
| PPE036 | Electricians Gloves Class 0 | – | 8 – 11 | Orange |
| PPE136 | Electricians Gloves Class 1 | – | One Size | Orange |
| PPE236 | Electricians Gloves Class 2 | – | One Size | Orange |
| PPE336 | Electricians Gloves Class 3 | – | One Size | Orange |
| PPEPRO | Leather Electricians Gauntlet Protector | – | 8 – 11 | Grey |
| PPE255 | ARC Utility Glove 25 Cal | 25 cal/cm² | S – 2XL | Tan |
| PPE328 | ARC Utility Glove 50 Cal | 50 cal/cm² | S – 2XL | Tan |
| PPE813 | ARC Grip Dexterity Glove | 10.3 cal/cm² | 8 – 11 | Yellow/Grey |
| PPE370 | ARC Engineers Glove 12 Cal | 12 cal/cm² | S – 2XL | Tan/Black |
Helmets & Visors
Arc flash helmets and face shields/visors.
| STRATA Part Number | Description | Cal Rating | Size | Colour |
| SFX970 | ARC Baseball Cap Hood with Visor 25 cal | 25.6 cal/cm² | XS – 4XL | Blue |
| SFZ740 | ARC Complete Hood with Visor 40 cal | 40 cal/cm² | XS – 4XL | Blue |
| PPE002FR | FR Zero Thinsulate® Helmet Liner | – | One Size | Black |
| SFX311 | ARC Helmet Visor 12 cal | 12 cal/cm² | S – 3XL | Tru-Colour |
| SFX312 | ARC Helmet Visor 25 cal | 26 cal/cm² | One Size | Tru-Colour |
| PPE919 | ARC V Guard Helmet | – | One Size | White |
| PPE554 | ARC Flash Helmet/Face Shield | 14 cal/cm² | One Size | White |
| PPE555 | ARC Flash Helmet/Face Shield | 28 cal/cm² | One Size | White |
| PPE558 | Secra – 1 Electric ARC Helmet | – | One Size | White |
| PPE560 | ARC /Visor Flash Helmet | – | One Size | White |
Arc Flash Garment Care
Make your garments last longer by doing the following:
- Arc flash clothing should be cleaned regularly.
- Professional laundering is recommended by a STRATA approved launderette.
- Wash separately from non-FR garments.
- A label with appropriate cleaning instructions is affixed within your garment.
- Never use a heavily soiled garment.
- Garments with reflective tape should be washed and dried at a lower temperature
ELECTRICAL SAFETY PROVIDERS
We protect substation engineers, asset managers, SAPS, cable jointers, overhead linesmen and utility workers with PPE and safety equipment: this includes insulating gloves, arc flash clothing, voltage detectors, insulating matting and portable earthing to ensure worker safety when carrying out repair and maintenance on LV-HV switchgear, transformers, substations and turbines.
All of our Cable Connection & Energisation Accessories including Medium & High Voltage joints, terminations, connectors and cleats are tested to the latest international standards and supporting ranges of professional installation tools are stocked to reduce incident, accident and downtime to plant and people.

Arc Flash Polo Shirts | Coveralls | Sweatshirts | Helmets | Insulating Gloves
5 Ways You Can Reduce The Risk Of Arc Flash
January 25th, 2022
Arc Flash Risk
Arc Flash Risks
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Special thanks to Engineering Power Solutions for the kind permission to republish
Arc flashes pose a significant hazard to electrical systems operatives. They can cause damage to equipment as well as severe injury or even death to personnel. However, with proper arc flash safety procedures in place it is possible to reduce the risk significantly.
What Is An Arc Flash?
An arc flash is a sudden discharge of energy, connecting a component through the air to the ground or to another voltage phase in the same system. This can be the result of loose connections, exposed live parts or other short circuits in faulty equipment. Careless work practices can also cause arc flashes when working on live electrical systems.
The resulting explosions produce highly dangerous intensities of heat and light.
As well as damage to electrical equipment, arc flashes can cause internal and external burns, eye injuries from intense UV light emissions, and lung damage from hot gasses or vaporised metals.
How To Avoid An Arc Flash
Given these hazards, it would seem vital to know how to prevent arc flashes. Yet aside from simply powering down a system, it is virtually impossible to eliminate the hazards entirely. However, it is possible to mitigate the risks, and what’s more, it is an employer’s legal duty to carry out appropriate assessments to do so.
Here are five ways to minimise the dangers posed by arc flashes.

1) Power Down Electrical Equipment Where Possible
An arc flash can only occur with live voltage, so the simplest hazard mitigation strategy is to power down the system when not in use. It should always be assumed that a system is live until it has been verified as de-energised. However, it is not always possible to carry out work on de-energised electrical equipment, and in these cases, other safety measures must be taken.
2) Ensure Safe Working Systems
A full arc flash risk assessment should be carried out on all electrical systems. It need only be conducted once in full but should be reviewed at least every five years. Reviews should also be carried out if any components are changed or other system updates are made. A professional risk assessment identifies the potential hazards in an electrical system, so that they may be properly labelled, and the risks mitigated.
3) Wear PPE
When engaging with electrical systems, workers should wear the appropriate personal protective equipment (PPE). Insulated rubberised gloves give protection against electrical arcs, as well as heat and flame resistance. Head and face gear is also important to protect against high heat and light intensities, as well as impact damage from an arc flash explosion.
4) Keep a Safe Distance
Arc flashes can cause injuries at distances of up to six metres. Operators should maintain a safe distance from points of severe hazard, using remote tools or robots, as well as wearing appropriate PPE when within the calculated arc flash boundary.
5) Ensure Proper Training
Anybody working with electrical systems needs the appropriate training to understand the hazards and the requirements for safe working. This is even more important if engagement with live systems is unavoidable. Operatives need to know how to conduct a risk assessment before starting work, identifying hazardous points in the system and the appropriate working practices to mitigate them.
What Next?
Speak to us today to find out more about arc flash risk mitigation, and how you can improve electrical health and safety in your workplace.

Engineering Power Solutions is a trustworthy engineering team offering personal, friendly and transparent technical services whilst continually improving engineering design efficiency. We also provide product procurement solutions, combined with our engineers technical expertise we will help you with product selection, advice and ongoing technical support throughout your project.
Arc Flash Clothing Stockists & Suppliers
This is the question arc flash specialist protective clothing manufacturer, ProGARM, is asking the UK industry. The question has been posed as part of a national campaign to raise awareness around the often-fatal risk of arc flash injury.
The campaign sees ProGARM calling on workers at all levels within the rail, construction, petrochemical, utilities, power generation and industrial electrical industry to share their experiences in a bid to capture a true picture of the real risk of arc flash across the UK.


Arc Flash | Polo Shirts | | Coveralls | | Sweatshirts | Helmets | Insulating Gloves
NEW Arc Flash Coveralls | ProGARM 3100 Treated Coverall
December 13th, 2021
ProGARM 3100 Treated Coverall
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.
Introducing the new 3100 Flame Resistant treated coverall that is certified to last 2x longer than any other competitor product. In stock and ready to ship in Navy, Orange and Royal Blue – contact Thorne & Derrick for more information.
The ProGARM 3100 Arc Flash Coverall provides Category 2 Protection against arc flash with 13cal/cm2 according to IEC 61482-2:2020 ‘open arc’ test method.
With VXT+ 350gsm woven treated antistatic fabric, the coverall is suitable for use in the electrical, petrochemical and utilities industries.
The arc flash coverall also has antistatic properties and provides protection for heat, flame and welding. It has been designed with unrivalled comfort and fit and is certified to 100 x industrial wash cycles capable of up to 75°C, ensuring long lasting protection and product durability. The garment has various pockets for extra and secure storage.

ProGARM 3100 Treated Arc Flash Coverall
Arc Flash Coverall
Features & Benefits
- Mandarin collar shape with hanger loop // Maximum neck protection
- Two way zip // Easier donning and doffing
- 2 chest pockets with zipper closure // Secure storage
- 1 radio loop on right chest and 1 radio loop attached on left chest // Extra storage
- 1 sleeve pocket with Velcro® closure // Extra storage
- Internal adjustable waist band // Increased comfort and mobility
- 2 side pockets with inner access opening // Extra storage
- 2 back pockets with flap and Velcro® closure // Extra storage
- Ruler Pocket // Extra storage
- Studs adjustable cuff hems // Increased comfort
- Gusseted crotch // Increased comfort and durability
- External kneepad pocket // Ease of use
- Action back // Wearer comfort
- 50mm double stitched reflective tape // Industrial wash capable up to 100 wash cycles
- Garment has been tested after 100x industrial wash cycles and passes 11612 both A1 and A2 // Increased durability
- Industrial wash capable up to 75°C // Washing flexibility
Arc Flash Learning & Resources

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
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:
- 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










