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.
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:
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:
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 Products | Distributed By Thorne & Derrick
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.
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.
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
Reduction of time for clearing fault conditions has a dramatic impact on the energy released and consequent damage and injury.
Adequately trained personnel and proper procedures are essential to safe operations
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.
Voltage Detectors Distributed from Stock | Approved Supplier | UK & Export Sales
Pfisterer KP-Test 5
The KP-Test 5 capacitive voltage detector manufactured by PFISTERER and distributed by Thorne & Derrick can be used for indoor and outdoor medium voltage applications. It indicates the presence of operating voltage. The KP-Test 5 voltage detector is distinguished by its high level of user friendliness and user safety.
Voltage detectors in the KP-Test 5 series perform an automatic self-test when they are switched on. The detectors also give off a clear visual and audible warning to signal the presence of voltage.
Voltage detector provides wider range of application, easier handling, improved signal indication – KP-Test 5 keeps pace with increased market requirements and makes high-quality electrical safety equipment possible.
Pfisterer Voltage Detector
Tested to EN 61243-1 the capacitive voltage detector can be used in all weather conditions. As with any security-related tool, there are a few basic rules to follow:
The employers’ liability insurance association for energy, textiles, electronics and media products (BG ETEM) currently points out that the contact electrodes or test prods of voltage testers must have conductive electrical contact with the system part to be tested in order to reliably determine the absence of voltage.
Clear measuring conditions, which are covered by the IEC 61243-1 standard, only arise in direct contact with the conductive part of the system. Even the simplest adhesive strips from office supplies can cause voltage drops of a few kV on busbars and lead to incorrect test results.
In practice, busbars are often color-coded, and measurements should never be taken at these points. This fact is due to the principle and applies to devices from all manufacturers. Another important rule: Voltage testers must be checked for proper functioning both before and after the measurement. The built-in self-test function is used for this.
Voltage Detectors 11kV 33kV
The KP-Test 5 family offers the right voltage detector for every application. Medium or High Voltage, alternating or direct current for use on overhead power lines, switchgear, in substations or on railway systems. All devices are individually adapted to our customers’ requirements. PFISTERER offers solutions for all voltage levels from 1 to 420 kV AC.
The SEANEX inner cone solution is an offshore variant of the successful Connex HV connection system that is specially adapted for 66kV inter-array cabling.
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 cable 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 MV
MV Connex Products | Ex Stock Thorne & Derrick | Inner Cone Cable Connectors 33kV
A Device For Short Circuit Protection
Ellis Patents, the world’s leading cable cleat manufacturer, has launched its UK accredited Continuing Professional Development (CPD) course – developed in-house, their online CPD course has helped educate thousands of engineering professionals from around the world.
“Cable cleats: a device for short circuit protection” is a NBS RIBA accredited course designed to provide technical insight and guidance that has been adapted for international use and is available through Ellis’s e-learning portal.
➡ FREE CPD Course By Ellis Patents
Module 1 Introduction
Includes a brief history of standards plus the importance of detailed specification to ensure the correct cable fixings are chosen for the environmental conditions and application.
Module 2 Electrical Theory
Nothing too heavy! Learn about short circuit faults, why they occur and their impact on cable systems. Also, how to calculate the forces involved and therefore how to ensure the correct strength fixings are specified.
Module 3 Materials
Different applications require differing solutions. Learn how sunshine, pollution and marine environments can cause problems if the wrong materials are specified. How to avoid bimetallic issues and how to prevent corrosion. The importance of fire safety and low emissions is also studied.
Module 4 Testing
Some exciting video clips of when things go wrong, and of good engineering practice. Appreciate the international standards that apply to cable cleat design and the rigorous testing procedures involved.
Module 5 Applications
An overview of some cable cleating applications and interesting special cable fixing projects.
“The Ellis CPD training is beneficial because it covers technical aspects of selecting the right cleat and it allowed me to discuss cleats with much more confidence.”
Rob Rehberg (NASCO)
“I found the Ellis Cable Cleats CPD kept my interested, it was very informative and professionally put together.”
Jon Watkins (Electrical Engineer – Kier Construction)
In this video Ellis Patents compare using Stainless Steel Cable Cleats and Stainless Steel Cable Ties – the Ellis cable cleats are used to restrain power cables on slotted rung cable tray and are short-circuit tested to 59kA RMS, 118kA Peak for 0.1 second duration.
There is a major difference between the short-circuit withstand requirements of a cable and the short-circuit withstand of a cable cleat.
The former is concerned with cable degradation as a result of temperature rise (thermal stress heating), while the latter is concerned with cable retention as a result of electromechanical forces.
Typical installation specifications that have been derived from the thermal withstand of the cable would require a short-circuit withstand of 63kA for 1 second or 40kA for 3 seconds.
A short-circuit test for a cable cleat does not consider this heating effect, and instead concentrates entirely on the destructive electro-mechanical forces at peak, followed by a short term decaying RMS.
The international standard IEC 61914 requires a short-circuit test duration of just 0.1 second. This equates to five complete cycles, by which time the true strength of a cable cleat will be known.
IEC61914 notes “a cable cleat is provided with a means of attachment to a mounting surface but does not rely on an unspecified mounting surface for the retention of the cables. Examples of mounting surfaces that may be specified are ladder, tray, strut or rail, wire and beam. Where declared, cable cleats provide resistances to electromechanical forces.”
IEC61914 – Calculating Short Circuit Forces To Specify Compliant Cable Cleats
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 MV
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.
See our collection of the Top Blogs featuring the complete range of Arc Flash PPE and Electrical Safety Equipment that Thorne & Derrick have available:
More Workplace Electrical Safety info ➡ | Cable Safety | Cable & Installation Tooling
Arc Flash Polo Shirts | Coveralls | Sweatshirts | Helmets | Insulating Gloves
Electrical Safety Equipment | LV MV HV
From Substation to Socket | Safe LV HV Cables & Electrical Power Systems Up to 400kV
We provide Tooling & Electrical Equipment to Improve Workplace Safety.
Contact us with your Enquiry.
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 installation tools are stocked to reduce incident, accident and downtime to plant and people.
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