Module 1 : Basic Concepts
Pg Topics
1 Learning Objectives
2 Introduction to hazardous areas
3 History Related to Mines
4 Flammable Materials
5 Fire Triangle
6 Explosive Limits
7 Concept of LEL & UEL
8 Hazardous Atmosphere
9 Effects of Temperature and Pressure
10 Ignition Energy
11 Flashpoint
12 AIT
13 Dust Hazards
14 Explosion Pentagon
Module 2 : Classification
Pg Topics
1 Learning Objectives
2 Classification
3 Area Classification of Gas ( IEC )
4 Area Classification Dust ( IEC )
5 Group Classification
6 MESG
7 MIC
8 MIC Ratio
9 Temperature Classification (IEC)
10 Classification (North American)
11 Classification of Hazardous Locations
12 Group Classification (North American)
13 MESG and MIC ratios
14 Article 505
15 Area Classification of Dusts
16 Dust Groups
17 Temperature Classification in America
18 Steps to Area Classification for Gases & vapors
19 Steps to Area Classification for Gases & vapors
20 Pitfalls in the Classification Process
21 More on Area Classification of Dusts
22 Example 1 area classifications ( area classification of a chemical facility)
23 Example 2 area classifications ("")
24 Example 3 area classifications ("")
Module 3: Methods of Protection
Pg Topics
1 Learning Objectives
2 Overview of protection philosophy
3 Explosion proof method -1
4 Explosion proof Fundamentals
5 Explosion proof Fundamentals (cont.)
6 Explosion proof method - working
7 Explosion proof method-flanged joint
8 Explosion proof method - threaded joint
9 Explosion proof method - pressure developed
10 Explosion proof Pressure Piling 1
11 Explosion proof Pressure Piling 2
12 Explosion proof MESG
13 Explosion proof Standards and practices
14 Explosion proof seals
15 Explosion proof - Direct & Indirect entry
16 Explosion proof IEC (Cont.)
17 Dust Ignition Proof
18 Explosion proof Advantages
19 Explosion proof Disadvantages
20 Intrinsic Safety – Fundamentals
21 Intrinsic Safety – History
22 Intrinsic Safety Resistive circuits
23 Intrinsic Safety- Inductive circuits
24 Intrinsic Safety- Capacitive circuits
25 Intrinsic Safety- Minimum Ignition Current
26 Intrinsic Safety Resistive circuit curves
27 Intrinsic Safety –Safe operating curves
28 Intrinsic Safety Inductive Circuit curves
29 Intrinsic Safety Capacitive circuit curves
30 Intrinsic Safety- Simple Apparatus
31 Intrinsic Safety –Safe area & associated apparatus
32 Intrinsic Safety- Working of Diodes
33 Intrinsic Safety –Working of Zener Diode
34 Intrinsic Safety -Diode curve
35 Intrinsic Safety Zener Diode curve
36 Intrinsic Safety –How barriers work
37 Intrinsic Safety –How Zener barriers work
38 Intrinsic Safety –Safety parameters of barriers
39 Intrinsic Safety –What are Isolators
40 Intrinsic Safety –How isolators work
41 Intrinsic Safety Isolator working example
42 Intrinsic Safety- Infallible components
43 Intrinsic Safety- Entity Concept
44 Intrinsic Safety- Cable Parameters & L/R ratio
45 Intrinsic Safety –Faults- Ex-ia and Ex-ib
46 Intrinsic Safety –Safety description of barriers
47 Intrinsic Safety –Typical IS Loop
48 Intrinsic Safety –Conditions to be met
49 Intrinsic Safety –How to design a practical IS temperature loop
50 Intrinsic Safety Example Cont.
51 Intrinsic Safety Example Cont.
52 Intrinsic Safety Advantages/Disadvantages
53 Pressurization & Purging concept
54 Pressurization Interlocks
55 Types of Pressurization-North American
56 Pressurization- Type Z, X and Y
57 Pressurization-IEC Norms
58 Pressurization-Static & leakage compensation
59 Pressurization with dilution
60 Purged panels-advantages & disadvantages
61 Increased Safety Basics
62 Increased Safety-Enclosures & terminals
63 Increased Safety-Construction
64 Increased Safety-creepage & clearances
65 Increased Safety-Advantages & disadvantages
66 Nonincendive-Basic concept
67 Nonincendive-How non incendive circuits work
68 Nonincendive-Advantages & disadvantages
69 Encapsulation 70 Powder filling & oil immersion
71 Weather Protection Basics
72 Weather Protection-NEMA codes
73 Weather protection- NEMA codes
74 Ingress Protection codes (IP codes)
75 IP charts
