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Uploaded By Chris Dodds | Sales Marketing Manager at Thorne & Derrick
Experts | 20+ Years of Experience in Explosion Protection
IndEx Middle East FZE are an internationally accredited IECEx compliance service provider to hazardous areas engineering in the Gulf Region. IndEx Middle East is an accredited IECEx compliance service provider – the first one in the Middle East offering full IECEx compliance services from the initial project concept to handover. IndEx deliver full IECEx scheme compliance services, competence training and equipment assessment based upon the latest IEC international standards – this includes the inspection and audit of existing brownfield installations and Ex rated equipment. Assisting and sharing responsibility in the determination of proper hazardous area located Ex rated equipment and installations with project and site based maintenance personnel. Get in touch.
Gases, vapours, mists and dusts can all form potentially explosive atmospheres with air.
Hazardous Area Classification (HAC) is used to identify places where, because of the potential for an explosive atmosphere, special precautions over sources of ignition are needed to prevent fires and explosions. Hazardous area classification should be carried out to identify places (or areas) where controls over ignition sources are needed and those places where they are not. Hazardous areas are further classified into Zones / Class & Divisions / Classes & Zones, which distinguish between places that have a high chance of an explosive atmosphere occurring and those places where an explosive atmosphere may only occur occasionally or in abnormal circumstances. Learn more.
Experts In Equipment for Explosive Atmospheres with ATEX & IECEx Certification
T&D are your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to your UK and international projects.
We can specify and supply from stock an extensive range of Explosion Proof Ex d Equipment to provide safe flameproof lighting, power distribution, isolation and cable termination in explosive atmospheres.
Isolators | Enclosures | Glands & Terminations | Light Fittings | Flameproof Equipment
Control Panels | Plugs | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Ventilation Fans | Security Access Control
“Competency Validation of personnel who work on equipment for use in explosive atmospheres”
All T&D Sales Engineers hold CompEx Certificates (Hazardous Awareness Course EX F) and undertake advanced and ongoing Explosion Protection training with suppliers – we can be safely trusted to specify and supply Electrical, Mechanical, Process & Instrumentation Equipment for use in hazardous areas zones and explosive atmospheres.
The CompEx Certificates were awarded following successful completion of the course and written examination at Roxby Training Solutions Ltd, a UK Approved Licensed CompEx Centre.
Details of forthcoming Hazardous Area Training courses are available here, Book A Course.
The CompEx Scheme is now the global solution for validating core competency of employees and contract staff of major users in the gas, oil & chemical sectors, both with offshore and onshore activities – designed and developed by industry for industry.
Terry McDonald (Thorne & Derrick Business Development Manager – Hazardous Area Industries) commented on the training, “The CompEx Foundation course delivered by Roxby Training Solutions Ltd was well received by the candidates.
“The course was excellently presented by a knowledgeable instructor who has a wealth of experience working within Hazardous Areas.”
“The topics covered reinforced our employees’ current knowledge and bridged the gaps where required. With candidates being certificated in the ExF unit of the CompEx scheme, it has instilled greater confidence that Thorne & Derrick can continue to provide the support to customers.”
“Overall we were very pleased with the standard of training received and wouldn’t hesitate to recommend Roxby Training Solutions Ltd services.”
Roxby’s Training Solutions Limited is a UK Approved Licensed CompEx Centre based in Stallingborough, North East Lincolnshire
“Hazardous area topics covered reinforced our current knowledge and filled in the gaps. Keith helped give a genuine appreciation of the dangers and consequences of failure to comply with ATEX regulations and although ultimate responsibility lies with the end user, T&D can continue to support our customers in the knowledge that we are competent to EX F Foundation in Hazardous Awareness level and have a very sound understanding of hazardous areas, protection concepts and DSEAR/ATEX regulations,” concluded Terry.
Type of Explosion Protection Ex ‘i’ is a protection type in which the energy available in the hazardous area is limited to a level below that which could ignite a flammable atmosphere.
Ex i intrinsic safety is the traditional electronic explosion protection where the power supply to electrical equipment is fed through a safety barrier (Shunt Diode Safety Barrier or Galvanically Isolated Barrier) that limits the current and voltage so that the minimum ignition energy and ignition temperature of an explosive mixture cannot be reached.
Ex ‘i’ Definition: a type of explosion protection in which additional measures are applied so as to give increased security against the possibility of excessive temperatures and of the occurrence of arcs and sparks in normal service or under specified abnormal conditions.
Temperature classifications T1 to T6 have been introduced for hazardous area equipment – the equipment is assigned to a temperature class or T Class Rating according to its maximum surface temperature. The temperature classes are:
| Temperature Class | Max Equipment Surface Temperature | Ignition Temperature Of Combustible Substances |
| T1 | 450°C | >450°C |
| T2 | 300°C | >300°C |
| T3 | 200°C | >200°C |
| T4 | 135°C | >135°C |
| T5 | 100°C | >100°C |
| T6 | 85°C | >85°C |
Type of Explosion Protection Ex ‘e’ is a protection type where the occurrence of sparks and impermissable temperatures that could act as a source of ignition is prevented through additional mechanical protective measures.
Type Ex e protection requires an Ingress Protection minimum of IP 54. Ex e increased safety equipment, conforming to the requirements of the ATEX Hazardous Area Directive, is marked to indicate conformity with the Directive. The explosion protected equipment should also be marked with the requirements of the international hazardous area standard (eg IEC 60079-7).
For more information, refer to the relevant standards, EEMUA 186 – A Practitioners Handbook.
Ex ‘e’ Definition: a type of explosion protection in which additional measures are applied so to give increased security against the possibility of excessive temperatures and of the occurrence of arcs and sparks in normal service or under specified abnormal conditions.
Type of Explosion Protection Ex ‘d’ is a protection type where electrical equipment is installed in a flameproof enclosure to ensure that possible sparks cannot escape. The electrical components that could trigger ignition are built into an enclosure that will withstand the pressure of an explosion – the openings of the enclosure are designed and manufactured to prevent the explosion from escaping the enclosure.
Ex ‘d’ Definition: a type of explosion protection in which the parts that can ignite an explosive atmosphere are placed in an enclosure that can withstand the pressure developed during an internal explosion of an explosive mixture and which prevent the transmission of that explosion to the explosive atmosphere surrounding the enclosure.
Type of Explosion Protection Ex ‘p’ is a protection type where electrical equipment and controls are installed in an enclosure that is constantly kept under slight overpressure with nitrogen or a nonexplosive gas to prevent penetration by flammable gases. The equipment enclosure in filled with an inert gas and an explosive gas mixture cannot get to the possible sources of ignition that are arranged on the inside of the enclosure.
Ex ‘p’ Definition: a type of explosion protection using the technique of guarding against the ingress of the external atmosphere into an enclosure by maintaining a protective gas therein at a pressure above that of the external atmosphere. Protection by pressurisation is subdivided into 3 explosion protection types (px, py and pz) which are selected based upon the external explosive atmosphere, the potential for an internal release and whether the electrical equipment within the pressurised enclosure is ignition capable.
T&D : UK & International – Hazardous Area & Explosive Atmosphere Experts.
ABOUT US
Stockists
Thorne & Derrick International are your single-source supplier of Electrical, Mechanical, Process & Instrumentation Equipment for use in industrial, hazardous area zones and explosive atmospheres.
T&D provide an outstanding service to UK and international customers – we are highly customer responsive and absolutely committed to providing a world-class service.
Electrical Heating Products
Thorne & Derrick International supply heated hoses, trace heating and heating cables for mechanical services and pipework to ensure optimum temperature maintenance is achieved and production losses are eliminated for industrial and process industries. We can design and supply electrical heat tracing systems for both process temperature maintenance and pipework frost protection in commercial, industrial and hazardous area applications – call us.
From stock we supply an extensive range of Electric Process Heating and Control Systems with IECEx, ATEX and CSA certification.
Air Warmers | Immersion Heaters | Thermostats | Water Heaters | Line Heaters | Portable Fan Heaters
Hazardous Areas | Explosive Atmospheres | Flameproof & Explosion Proof Eqpt | ATEX
Explosion Protection (ATEX) & Functional Safety (SIL) Training Seminar By Pepperl + Fuchs, The Process Automation Specialists
Thorne & Derrick, The Explosive Atmosphere Experts, have registered to attend the latest Pepperl + Fuchs training seminar – as specialist 
distributors of Electrical, Mechanical, Process & Instrumentation Equipment to the hazardous area industries our Sales Engineers are committed to providing the highest levels of customer service.
We deliver this commitment through a thorough understanding of hazardous area classifications, explosion protection methods, legislation compliance and the relationships between electrical equipment, gas groups and temperature classes.
We recommend our clients, suppliers and supporters consider registering their attendance to this excellent “up-skilling” opportunity provided by Pepperl + Fuchs, The Process Automation Specialists.
Process Automation
ATEX
1. Physical Basics
2. Legal Basics
3. Types of Protection – Gas
4. Intrinsic Safety
5. Dust Explosion Protection
1. Introduction
2. Risk Analysis
3. Failure performance of equipment
4. Avoidance of (systematic) failures
5. Control of (unavoidable (?) and random)) failures
6. Proven in use
7. Implementation of protective equipment
Please see the booking form PDF attached below.
BOOKING FORM – Complete for ALL seminars
We have curated a collection of our favourite Pepperl + Fuchs #AUTOMATION tweets – for more go to Twitter and Follow @PepperlFuchs
Pepperl+Fuchs are leading suppliers of automation equipment for hazardous areas and process automation industries – the Pepperl + Fuchs product ranges includes intrinsic safety isolators, Zener barriers, signal conditioners, fieldbus technology, Remote I/O, HART interfaces, level measurement, purge and pressurization systems, Human Machine Interfaces (HMI) for hazardous environments, custom cabinets, and junction boxes.
Explosion Proof Electrical Enclosures & Control Stations – Ex e, Ex ia, Ex e Hazardous Areas
Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group – Process & Hazardous Area Industries : Heat Tracing, Gas Detection, Fluid Control & Flow Measurement. News, projects, videos, promotions, whitepapers, jobs, webinars, press plus much more. 
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...
