Certificate in Hazardous Areas for Engineers & Technicians

 

OBJECTIVES

 
Upon completion of this workshop you will be able to:

OVERVIEW

 
This course provides a comprehensive technical approach to hazardous areas. It explains the subject of explosion protection applied to electrical equipment in such areas. The course offers detailed explanations of the principles involved, the techniques used, the management structures and requirements to comply with the harmonized international standards that are now in place. Where potentially flammable atmospheres are encountered in industrial processes, area classification is mandatory as part of a risk assessment for the management of health and safety; the issues are examined by providing the opportunity to apply this process and understand the importance and extent of the co-operation of the disciplines involved. Requirements of inspection and maintenanceare examined to show the importance of theireffectiveness once the correct installation hasbeen properly achieved, and to enablemanagement to form a structured andeffective regime to assure safety.
 
This course would alsobe appropriate for supervisors and managers,with the emphasis on outlining themanagement responsibility and enablingthem to complement and accommodate theneeds of technical staff beneath them. It is acommon problem that technical staff are trained in what needs to be done but their management does not appreciate this or understand it. This course will address these shortcomings.
 

 

 

COURSE OUTLINE


UNIT 1:Background and History

The need for explosion protection
Lessons from disaster investigation
Concept of certification
Risk assessment

UNIT 2:Ignition Characteristics

Fire triangle
Flammability characteristics
Ignition sources
Apparatus grouping

 
 

UNIT 3:Area Classification Theory

Objectives
Terminology and definitions
Sources of release and ventilation
Zoning
Presentation, communication and monitoring
Responsibilities
Types of protection suitability

UNIT 4:Area Classification Practice

Process of decision making
Assessment and calculation
Other 'codes of practice'
Examples and tabulations

UNIT 5:Ex d

Flameproof
Theory of operation
Flamepath joint types
Dimensions and condition
Apparatus and component certification

UNIT 6:Ex i & Systems

Intrinsic safety
Simple apparatus
Apparatus and system concepts
Interfaces
Apparatus matching
Descriptive system documentation

UNIT 7:Ex e and Ex n

Increased safety
Limitations of use
Insulation and connection integrity
Enclosure requirements
Non-incendive
The difference in approach

UNIT 8:Ex Types: p, o, q, m and s

Features of these other types of protection
Pressurisation and purging, oil immersion, sand-filling and encapsulation.
Special protection
Combined protection types

UNIT 9:Installation

General requirements
Information flow
Cabling requirements
Electrical protection
Earthing and bonding
Specific requirements for different types of Protection

UNIT 10:Inspection

General requirements
Periodicity and grade
Scheduling
Maintenance
Responsibilities
Testing and fault-finding issues

UNIT 11:Certification and Marking

Summary of certification
Marking of older apparatus
Types of certificate and information contained
Conditions placed on the use of apparatus
Multiple certification techniques and benefits

UNIT 12:European ATEX Requirements

ATEX and the international standards
Product marking
"Product" directive
"Workers" directive (The DSEAR in UK)