Consequence & Risk · Intermediate · 1 day

Hazardous Area Classification (IEC 60079-10)

Zoning for gases, vapours and dusts and keeping the drawings alive

Duration1 day
LevelIntermediate
FormatOn-site · virtual
CodeTR-B04
Release LFL½ LFL0 m100 m200 m Control room 4.7 kW/m²
Course flyer

Hazardous Area Classification (IEC 60079-10) — one-page catalogue.

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Hazardous Area Classification (IEC 60079-10) — one-page course flyer
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Request this courseDownload the Training Request Form, quote course code TR-B04, sign and e-mail it to sales@cerasus.ai — or use the consultation form below.
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At a glance

What you will be able to do.

Process, electrical and instrument engineers responsible for hazardous area classification; inspection and Ex maintenance staff; project engineers reviewing HAC deliverables

Hazardous area drawings are often inherited, seldom questioned and frequently wrong. The course covers the classification method of IEC 60079-10-1 and -10-2 — sources of release, release grades, ventilation and dilution, zone type and extent — with worked calculations, and compares it with the API RP 505/500 and NFPA 497 approaches used on North American designs. Participants classify part of their own unit and produce a drawing and data sheet.

  • Identify sources of release and assign release grades correctly
  • Estimate release rates and apply the dilution and ventilation assessment of IEC 60079-10-1
  • Determine zone type and extent for gas, vapour and mist releases
  • Classify combustible dust areas to IEC 60079-10-2
  • Translate between IEC zones and API/NFPA divisions where both apply
  • Maintain HAC drawings and data sheets through management of change
Course outline

Day by day

Morning

Flammable atmospheres and ignition · IEC 60079-10-1 method: sources, grades, zones · release rate estimation and dilution degree · ventilation availability and zone extent · eight worked calculations for typical equipment

Afternoon

Dust classification to IEC 60079-10-2 · API RP 505 / 500 and NFPA 497 comparison · EI 15 point-source approach · classification of a participant's unit and drawing · data sheets, equipment selection interface and MOC

Standards referenced
IEC 60079-10-1
IEC 60079-10-2
EI Model Code of Safe Practice Part 15
API RP 505 / 500
NFPA 497
IEC 60079-14
Request a consultation

Tell us about the unit and the problem.

Send a short brief — plant, service of interest and what you need to achieve — and a Cerasus engineer will respond with a proposed scope and next steps.

Prefer email or phone? sales@cerasus.ai · +974 5506 2743