Instrumentation and Control Safety
Course 1: Instruments in Hazardous Environments
Prerequisites: This lesson is designed for participants with an understanding of industrial process control, personnel safety and working with hazardous substances, as well as a working knowledge of the elements in single-loop and multiple-loop control.
Description: This lesson explains the characteristics and importance of intrinsically safe, explosion-proof, and purged and pressurized systems. Installation and maintenance considerations for safety systems are taught, including project planning, wire runs, terminations, and grounding.
Objectives:
- Identify the causes of explosions
- Identify the components of the combustion triangle
- Describe how protective measures can reduce the probability of explosion
- Describe nonincendive, encapsulation, and oil-filled safety methods
- List and define area classification descriptions
- Define intrinsic safety and identify intrinsically safe components and installations
- Identify the principles of intrinsic safety
- Define the function of a barrier
- Identify process components that require certification for intrinsic safety
- Demonstrate the ability to interpret documentation for proper intrinsic installation
- Identify intrinsically safe wire runs
- Explain the purpose of conduit seals
- Identify proper terminations for intrinsically safe connections
- Describe the installation and maintenance procedures associated with intrinsically safe systems
- List maintenance conditions for intrinsically safe installations