| Title: | Explosion Prevention |
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| Long Title: | Explosion Prevention and Protection in Hazardous Areas |
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| Field of Study: |
Electrical Engineering
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| Valid From: |
Semester 1 - 2014/15 ( September 2014 ) |
| Module Coordinator: |
JOSEPH CONNELL |
| Module Author: |
JOSEPH CONNELL |
| Module Description: |
This module outlines the ignition risks in potentially explosive atmospheres, explains the equipment and protection types, as well as organisational and installation methods. It encompasses ATEX, EN Standards, ETCI Rules (ET105) and Guide (ET202). |
| Learning Outcomes |
| On successful completion of this module the learner will be able to: |
| LO1 |
Identify the risks in hazardous areas and describe the principles of explosion prevention. |
| LO2 |
Outline the intentions of the ATEX directives and the responsibilites of employers and employees. |
| LO3 |
Specify and select suitable equipment from a range of protective types for potentially explosive gas and dust atmospheres. |
| LO4 |
Summarise the principles and practical applications of intrinsically safe equipment. |
| LO5 |
Interpret the information available to installers and understand basic installation and maintenance techniques. |
| Pre-requisite learning |
Module Recommendations
This is prior learning (or a practical skill) that is strongly recommended before enrolment in this module. You may enrol in this module if you have not acquired the recommended learning but you will have considerable difficulty in passing (i.e. achieving the learning outcomes of) the module. While the prior learning is expressed as named CIT module(s) it also allows for learning (in another module or modules) which is equivalent to the learning specified in the named module(s). |
| No recommendations listed |
Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. You may not earn additional credit for the same learning and therefore you may not enrol in this module if you have successfully completed any modules in the incompatible list. |
| No incompatible modules listed |
Co-requisite Modules
|
| No Co-requisite modules listed |
Requirements
This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. You may not enrol on this module if you have not acquired the learning specified in this section. |
| No requirements listed |
Co-requisites
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| No Co Requisites listed |
Module Content & Assessment
| Indicative Content |
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Potentially Explosive Atmospheres.
Basic concepts, definitions/terminology. Risk assessment. Classification systems, groups, zones, temperature. LEL, UEL, MIE. MESG. Ventillation. EPL. Dust hazards. Standards. Traditional labeling.
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ATEX Directives.
Equipment (94/9/EC)and Safety (99/92/EC) Directives. Background, aims, obligations, explosion risks, categories of equipment, documentation. EN Standards and guides. Equipment marking and certification.
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Explosion Prevention Methods.
Common design procedures. Equipment design philosophy. Applications. Equipment category and EPL. Equipment types Ex, d, e, p, n(N), o, q, m, (s). Protection design concepts and equipment for dust hazard areas. Non-electrical equipment.
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Intrinsic Safety.
Ex'i'. Concept and principles. Categories. Safety interface. Simple and non-simple apparatus. Associated apparatus. IS circuits. IS systems. Earthing. Galvanic isolation. Barriers for instrumentation. Cabling for IS. Inductance and capacitance. Ignition curves.
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Practical Aspects.
Selecting equipment. Installation design. Cable/cable managment, cable identification, environmental considerations. Junction boxes, terminations, terminals, cable glands, stopper boxes, sand traps, bonding. Static electricity and r.f.radiation. Inspection, testing, maintenance.
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| Assessment Breakdown | % |
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| Course Work | 100.00% |
| Course Work |
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| Assessment Type |
Assessment Description |
Outcome addressed |
% of total |
Assessment Date |
| Short Answer Questions |
Explosion Principles, ATEX directives |
1 |
20.0 |
Week 3 |
| Short Answer Questions |
Risk Assessment |
2 |
20.0 |
Week 5 |
| Essay |
Hazardous areas in the Pharma. Industry |
3 |
20.0 |
Week 8 |
| Short Answer Questions |
Methods of protection and their applications |
4 |
20.0 |
Week 10 |
| Short Answer Questions |
based on previous assessments plus on safe equipment |
1,2,3,4,5 |
20.0 |
Sem End |
| No End of Module Formal Examination |
| Reassessment Requirement |
Repeat examination
Reassessment of this module will consist of a repeat examination. It is possible that there will also be a requirement to be reassessed in a coursework element.
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The institute reserves the right to alter the nature and timings of assessment
Module Workload
| Workload: Full Time |
| Workload Type |
Workload Description |
Hours |
Frequency |
Average Weekly Learner Workload |
| Lecture |
Lecture material. |
3.0 |
Every Week |
3.00 |
| Independent & Directed Learning (Non-contact) |
Self directed learning |
4.0 |
Every Week |
4.00 |
| Total Hours |
7.00 |
| Total Weekly Learner Workload |
7.00 |
| Total Weekly Contact Hours |
3.00 |
| Workload: Part Time |
| Workload Type |
Workload Description |
Hours |
Frequency |
Average Weekly Learner Workload |
| Lecture |
Lecture material |
3.0 |
Every Week |
3.00 |
| Total Hours |
3.00 |
| Total Weekly Learner Workload |
3.00 |
| Total Weekly Contact Hours |
3.00 |
Module Resources
| This module does not have any book resources |
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| This module does not have any article/paper resources |
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| Other Resources |
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- http://www.etci.ie: etci 2011, National rules for electrical
installations in potentially explosive
atmospheres
, etci
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Module Delivered in
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