Water Industry Explosive Atmosphere Training Ex09 & Ex10

The international scheme for the training and certification of personnel who work on electrical apparatus for use in explosive atmospheres within the water industry


CompEx and P & R Hurt have fully updated this qualification, there are NEW Assessment Rigs and this qualification requires the candidate undertakes a 6 hour pre-learning online course from Trainor BEFORE attending the Training Centre. Employers are reccomended to allow time for the online training in plenty of time so the candidate can assimilate the information.

This is the FULL 5 Day course, 3 1/2 days of training and 1 1/2 assement days, including a 60 Question Multiple Choice Examination.

Including DSEAR & ATEX
A fully accredited Comp‘Ex’ Course Including Assessment
Attendance 5 consecutive days

Prerequisite

Competent practicing electrician qualified to NVQ Level 3 or equivalent. Good working knowledge of BS7671 Ideally C&G 2382-12 / 15. Competent inspection and testing skills i.e. EAL 4337/4338 or C&G 2391/2394/5. The ability to carry out a range of practical tasks including termination of SWA cable during the assessments.
Directions, travel and accommodation information available on request.
All courses must be paid for when booking, see our terms and conditions.
The course starts 8.30am prompt on Monday mornings it will therefore be best if the delegates are traveling any distance that they arrive Sunday evening.
1. ¬BS7671: 2018 Requirements for Electrical Installations Blue covers.
2. The On-Site Guide incorporating BS7671: 2018, Blue covers.
3. IEE Guidance Note 3 Inspecting and Testing Incorporating BS7671: 2018,
4. 2 Different colour highlighter pens. A4 Lined Note Pad, Pen and Pencil, calculator.

You may bring your own tools for the practical assessment if you wish (subject to a safety check by the assessor); the centre has adequate tools and equipment for those not able to bring their own tools i.e. travelling by train or plane etc. You may wish to bring a pair of overalls/normal work wear and must wear safety shoes (not trainers) for the assessment. NOTE: Sandals/flop flops are not permitted anywhere on our premises, you WILL NOT be allowed entry wearing such items of footwear, this is after all a working environment.

EX09: The Preparation, Installation and Decommissioning of Electrical Installations within the Water Industry
EX10: The Inspection, Test and Maintenance of Electrical Installations within the Water Industry
This publication contains information regarding the training units designed for the training and certification of core competence of personnel who work within the Water Industry and includes training and assessment of both those personnel who undertake the physical installation and assembly of new ‘Ex’ equipment and, who perform preventive maintenance and inspections on previously installed equipment within the Water Industry.

Certificated as a Qualified Electrotechnical Craftsperson: i.e. a Candidate who is a Practicing Electrotechnical Craftsperson validated by certificated qualifications or qualifications accompanied by company supporting letter on company letterhead signed by Responsible Person / Technical Authority.

About this scheme and the training

There are TWO TRAINING UNITS EX09 & EX10 in addition to the six core COMP’Ex’ units and the two Petrol Filling Station Units, the national scheme for the TRAINING AND CERTIFICATION OF CORE COMPETENCE OF PERSONNEL WHO WORK ON ELECTRICAL APPARATUS FOR USE IN EXPLOSIVE ATMOSPHERES.
This course is also suitable for mechanical practitioners working in explosive atmospheres so that they can gain an overall awareness of water industry hazardous areas from an electrical view point. They MUST ensure they are able to terminate Armoured and Braided cables in order to succeed in the written examination and finally overall core competency which will be validated if successful, however their certificate will indicate success in the examination it will NOT infer they are electrically competent.
Certificated as a CSNV Candidate i.e. Qualified Electrotechnical Craftsperson Status not validated by appropriate certificated qualifications, by virtue of being a mechanical practitioner.

Why two units?

Those working in this area of the industry must be able to Identify and assess the potential for Hazardous Areas to exist within all areas of the Water Industry including water production and sewerage.
The course includes guidelines to identify and assess Hazardous Areas, for areas / conditions which can develop beyond but also including petrol leaks / accidents. This will assist in ensuring compliance with legislation including the European ATEX Directives and their incorporation into UK law through the Dangerous Substances and Explosive Atmospheres (DSEA) Regulations and to reflect recent developments in operating conditions including new equipment e.g. remote monitoring / control systems.
The purpose of this document is to outline the training programme which when undertaken and satisfactorily completed; will demonstrate a measurable level of competence of those working within the Water Industry.
It will also provide companies with a target for their employees that can be recognised as a necessary component of their Quality Management System; assessment of technical understanding of practical skills will be an essential part of this training programme.
This course was originally designed here in Yeovil after working extensively with Wessex Water. We found there were areas not covered by existing training, leaving engineers at risk in the hazardous areas within the water industry, hence the creation of the course and CompEx taking it on as units 9 & 10.
In the past some companies have sent staff on other training courses such as CompEx 01-04 Gas & Vapours and 05-06 for Dusts.
Whilst excellent courses for those wishing to work on oil rigs or refineries or work in the food industry these units are not suitable for the Water Industry. During these courses no one will mention Sewers, Wet Wells, Dry Wells, Valve Chambers, Methanol Dosing, OSEC Plants, Bio Digesters, Gas Holders, De-Watering and of course dusts in Pelleting Plants etc. all of which are explicitly addressed in Ex09 and Ex10.

The course consists of the following basic training for the water industry explosive atmospheres: waste and supply

  • What is an explosive atmosphere? Risks, Methane, Hydrogen Sulphide, ‘Pour aways’ i.e. petrol, Chlorine Treatment (Oxidizer), On Site Electrolytic Chlorination (OSEC), Methanol, Bio Gas

  • Explosion Protection Hierarchy: Preventing release, Ignition prevention, Control of explosions, Certification and Markings, Manufacturing standards, ATEX overview area classification.
  • Ex Protection methods: Gas Groups, ‘T’ Class, Zones, Equipment Protection Levels, Equipment Categories, Ignition Temperature, Flash Point, UEL’s & LEL’s, Flammable Range, Gas Density, Auto Ignition, Energy Levels, MESG.
  • Ex Inspections: Detailed, Close, Visual, Defect reporting.
    This basic training is used to create an awareness of explosive atmosphere issues for engineers, electricians and other electrically competent staff. This is then expanded on over the rest of the course plus the specifics of the Water Industry.

Identification of hazardous areas

Practical Explosion Protection Detail: Equipment Protection Levels; ATEX Equipment Categories

Modes of Protection: Ex d, e, n, p, ia & ib etc.

Installation methods: Glands, Cables, Termination

Inspection Methods: Initial, Periodic, Visual, Detailed, Close

Working in Explosive Atmospheres: Safety precautions, hazards. Process Risk Assessment, Tools, Lighting, etc. Working risk assessments and method statements. Methane from sewers. Accidental spillage, petrochemical, chemical, gas migration from geological sources, decomposition of sewerage organic matter, infiltration of petrochemicals and natural gas from pipeline or other failures, tip leakage, decomposition of sludge organic matter, biogas produced by digestion of raw sewerage, gas holders, gas boosters, boiler and heater houses, Power generating plant and buildings, waste gas burners, LPG installations, Sludge drying plant (Dusts). Grades of release. Chlorine treatment, On Site Electrolytic Chlorination (OSEC), Methanol, Delivery, Storage and Dosing

Testing: Intrinsically safe testers/risks, i.e. Test its self may not be safe, inherently safe testing from the safe area

Verification: Zone/Area classification, Ensuring Zone/Area remains unaffected, Maintaining explosion protection, Certification and Markings correct use of glands, entry into insulated enclosures, Terminations, Sealing, Flame Paths, Proximity to other equipment, Pressure Piling

Inspecting Enclosures/Equipment: Zone/Area Classification, Equipment Protection Levels, Equipment Categories, Ensuring Zone/Area remains unaffected, Maintaining explosion protection, Certification and Markings correct use of glands, entry into insulated enclosures, Terminations, Sealing, Flame path, Proximity to other equipment, Pressure Piling. On-going confidence in instrument calibration.

Installation and Compliance: Electrical supplies, Installations, Earthing and Bonding Fault Handling, energy let through, energy withstand.

Gas Monitoring: Installed gas monitors, portable gas monitors

Confined Spaces (Awareness): Entry procedures, working with electrical systems in confined spaces, (NOTE this is NOT confined space training and is not a substitute for such training)

Waste: Specifics of working on waste sites, wet and dry wells, pumping, valve chambers; tanks, chambers and channels open to the atmosphere, primary settlement, storm settlement tanks, and digesters. Generating electricity, CHP

Dusts: Classification of Areas where Combustible Dusts may be Present, Sources of release. Zone 20 location, Zone 21 location, Zone 22 location. Consideration of Zones, standards for dust refer to dust clouds, not dust layers. Classification of Areas where both Combustible Dusts and Flammable Gases or Vapours may be Present, Locations where both dust and gas or vapour hazards may be present require additional consideration i.e. Bio Dryers.

You need to be aware that all of the following areas are integral to this course?

Ability to understand and apply ADS, Circuit protective devices and their characteristics/ parameters (Appendix 3 and Chapter 41: BS7671. Acceptable Measured Values of Earth Fault Loop Impedance from: Appendix 3 OSG, NICEIC chart, 80% rule). RCD’s, testing, disconnection times. Discrimination between devices both circuit protective and RCD’s, Fault current levels, energy withstand/energy let through. Co ordination of protection.

Ability to conduct a methodical inspection and provide a report, carryout a risk assessment, write a method statement?

Form filling; understanding and application of Ze, Zdb, Zs, RA, R1&R2, and PFC when completing inspection certification reports and schedules of test results and inspections.

Possess an ability to terminate, SWA and Braided cable, by using a variety of gland types. Use standard test instruments, Loop Impedance/Fault Current, RCD, and Insulation Resistance/Low Ohms Continuity.

We believe that the best way to ensure a fair chance on this course is to ensure that those entering are able to meet the standards of:

A competent practising electrician qualified to NVQ Level 3 or equivalent, with a good working knowledge of BS7671. Also possessing current practical and competent inspection and testing skills again ideally qualified to EAL 4337/4338 or C&G 2391/2394/5. Together with the knowledge and skills outlined above.

Some people entering this course have not succeeded because of a lack of the BASIC underpinning knowledge/skills of the type outlined above (none of which on their own are specific to the Water Industry) which should be part of everyday practice.

We are NOT able during this course to provide training in basic skills and underpinning knowledge or make up for a lack of fundamental understanding of basic contracting concepts.

You are not attending this course to be shown how to terminate SWA cable. Some candidates for other courses turn up not having made off a gland since college make sure you are not one of them!!

All of the following areas are assessed

  • Conduct a methodical site inspection plus Detailed, Close and Visual Inspections.
  • Carryout a risk assessment, write a method statement.
  • Demonstrate an understanding of the application and use of a permit to work, raise a permit and an isolation certificate.
  • Terminate SWA and Braided cable using a variety of gland types. Connect cables, wire up internal connections.
  • Install wire and connect a motor control circuit, emergency stop / operators stop / re-set installation including contactor etc.
  • Demonstrate inspection and testing of installed circuits using appropriate test instrument from appropriate locations including Loop Impedance/Fault Current, Insulation Resistance/Low Ohms Continuity. Low Current Clamp Meter.
  • Clearly outline the circumstances and requirements relating to ‘gas free’ testing.
  • Conduct an Inspection of a (simulated) existing operational site, completing all relevant documentation.
  • Perform safe isolation of a nominated installation or circuit to the satisfaction of the assessor.
  • All assessments are monitored and safety is expected to be displayed at ALL times, unsafe practices or behaviour will be the subject of a verbal warning, failure to comply will result in the assessment being terminated. Underpinning knowledge will be assessed in relation to its application to Water Industry Electrical Installations.

Electrical Training Courses Yeovil

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