Compex Hazardous Areas – Mechanical

COMPEX HAZARDOUS AREA COURSE FOR MECHANICAL PERSONNEL (EX11)

AIM
To provide training and assessment of competence for staff who work on mechanical equipment used in potentially explosive atmospheres.

Pre-Requisite
A recognised mechanical background and be a competent mechanical craftsperson.

Course Duration
3 days.

Maximum Number
8 persons.

Training Aids
Lecture notes and audio/visual presentation.

Assessment
A competence validation test consisting of multi-choice question papers and a practical assessment.

Certification
On successful completion of the course assessment, delegates will be awarded a National Certificate of Competence by JTL Ltd.

Additional Information
Meeting the needs and expectations of service users is of the highest priority to our staff. Therefore if you have any concerns or wish to make a comment about the service please contact: info@NETA.co.uk


COURSE OBJECTIVES

On successful completion of this course, delegates will have understanding of:

  • EX11 – preparation, installation, inspection and maintenance of mechanical equipment in potentially explosive atmospheres.

COURSE SYLLABUS

Directives & Legislation

  • ATEX – Equipment Directive and EPS Regs.
  • ATEX – Worker Directive & DSEAR
  • EAWR
  • HASAWA

Hazardous Areas

  • Flammables
  • DSEAR
  • Ignition sources
  • Characteristics of gases and vapors (IEC 60079-10)
  • Characteristics of Dust – (IEC 61241-10)
  • Area Classification
  • Boundary Signage
  • Categories and EPLs (IEC 60079-14:2007)

Equipment for Use in Hazardous Areas

  • Essential Health and Safety requirements (BS EN 1127-1)
  • Types of protection (BS EN 13463)
  • Ingress Protection (IP rating)
  • Marking
  • Maintenance work
  • Repairs
  • Modifications
  • Portable equipment

Miscellaneous

  • Work permits
  • Risk assessments
  • Methods statements, unfamiliar tasks
  • Gas-free certificates
  • Control of vehicles
  • Thermite issues (scaffold, aluminium steps)
  • Need to report defects
  • Working equipment does not mean safe equipment
  • Need for written procedures
  • Need to determine what competency level is required by each member of staff
  • Hazardous areas are not related to confined spaces

Mechanical Content

  • Non electrical standards – BS EN 13463

Bearings

  • Design
  • Fitting
  • Failure Mechanisms
  • Earthing requirements

Lubrication

  • Identification of lubricant for equipment
  • Monitoring of lube oil
  • Lube oil type
  • Greasing

Seals

  • Function and type
  • Lubricated seals
  • Failure modes / release
  • Throttle bush

Couplings

  • Seal areas and couplings
  • Types of coupling and material
  • Failure modes

Spares

  • Acceptable and replacement spares

Safety issues during overhaul

  • Permit to work
  • Isolations, process, services, mechanical, electrical
  • Drained down product free
  • High temperature, steam etc
  • Movement prevention (prevent inadvertent movement of machinery

Belt drives

  • Use of FRAS belts (Static-antistatic)
  • Tension
  • Alignment
  • Electrical bonding

Commissioning

  • Attend when start up
  • What to look for
  • Temperature stabilisation
  • Monitored or stand-alone system / equipment

Documentation

  • What information should be recorded by individual
  • Minimum requirements
  • Material changes
  • What information needs to be provided to the worker

Management of material changes

  • Failure identification
  • Visible seal leakage
  • Vibration
  • Temperature excursions
  • Performance degradation seizure

Simple components

  • Hand valves
  • No frictional risk
  • Speed below 1m/sec
  • All fixed items