A 8-hour course intended for Electrical and Instrumentation Technicians overseeing the specification, design and installation of intrinsic safety circuits in hazardous locations. The course covers hazardous location fundamentals, codes and standards, intrinsic safety protection concepts, IS circuit design, intrinsic safety wiring methods, grounding and bonding of IS circuits, IS circuit documentation, and IS circuit tutorial.
Course Description
Learning Objectives:
· To provide a general understanding of Field Wired Intrinsic Safe Circuits and their application
Course Information
Course Includes:
Hard copy of slide presentation
PDF of course materials
Certificate of attendance
Instructor
Allan Bozek, P.Eng, MBA Allan has over 40 years experience in the design, construction, commissioning and maintenance of industrial power systems. The scope of his experience includes manufacturing, oil and gas production, refining, water treatment and mining industrial facilities. He is a member of the IEEE industrial applications society, a committee member of the Canadian Electrical Code Section 18 (Hazardous Locations) and is a registered Profession Engineer in Alberta, British Columbia, Saskatchewan, Manitoba and Ontario.
Detailed Outline
1 Hazardous Location Fundamentals
a. Hazardous Location Fundamentals
i. Fire Triangle
ii. Properties of flammable gases/vapours
iii. Hazardous area classification
1. Division vs. Zone method of classification
b. Hazardous Locations (Combustible Dusts)
i. Fire Pentagon
ii. Properties of combustible dusts
iii. Hazardous area classification
1. Division vs. Zone method of classification
2. Codes and Standards
a. North American Division standards
i. CSA Standards
b. IEC standards
c. Canadian Electrical Code requirements
i. 2018 CEC changes related to IS Circuits
3. Intrinsic Safety Protection Concepts
a. Equipment Protection Level (EPL) concepts
b. Intrinsic Safety
i. Ex ia
ii. Ex ib
iii. Ex ic
c. Non-incendive
d. FISCO Fieldbus Intrinsically Safe Concept
4. IS Circuit Design
a. Entity parameters
i. Associated Apparatus
ii. Intrinsically Safe Apparatus
1. Simple Devices
2. Non-simple Devices
iii. Interconnecting wiring parameters
b. Resolution of the entity parameters for a safe installation
c. Assessment of circuits with more than one source of power
5. Intrinsic Safety Wiring Methods
a. CEC Code Requirements
b. Circuit segregation requirements
c. Sealing requirements ii. ISA Standards
6. Grounding and bonding of IS Circuits
a. CEC Code Requirements
b. Zener Barrier grounding requirements
c. Cable shielding and armour grounding requirements
d. Surge protection
7. IS Circuit Documentation
a. Control Drawing
b. Descriptive Systems Document
8. IS Circuit Tutorial
a. Selection of components, resolution of entity parameters and
documentation of an IS circuit application
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