APPLYING INSTRUMENTATION IN HAZARDOUS LOCATION

DESCRIPTION

Hazardous location is defined as a place where concentrations of flammable gases, vapors, or dusts occur. Electrical and Instrumentation equipment that must be installed in such locations is especially designed and tested to ensure it does not initiate an explosion, due to arcing contacts or high surface temperature of equipment.

Many strategies exist for safety in electrical installations.The simplest strategy is to minimize the amount of electrical equipment and instrumentation  installed in a hazardous area, either by keeping the equipment out of the area altogether or by making the area less hazardous by process improvements or ventilation with clean air. Intrinsic safety and non-incendive equipment and wiring methods are practices where apparatus is designed with low power levels and low stored energy, so that an arc produced during normal functioning of the equipment or as the result of equipment failure has insufficient energy to initiate ignition of the explosive mixture.

This course provides a detailed, systematic approach to specifying and implementing instrumentation in hazardous locations.

OBJECTIVE

After Completing this course, participant  will be able to:

• Identify process and environmental factors that determine classification
• Describe and use procedures for electrical & instrumentation classification
• Use applicable standards to develop classification drawings for gases, dusts, and fibers
• Describe the basic principles of protection
• Select explosion proof apparatus for specific applications
• Determine when and why explosion seals should be used
• Specify the use of intrinsically safe and nonincendive systems
• Select the appropriate protective techniques for different hazards
• Select alternative protective techniques for reduced cost

OUTLINE

• Introduction
• Location Classification Standards
• Division Classification
• Zone Classification
• Zone (Alternative) Classification
• Division Classification
• Division Classification
• Zone Classification for Dusts
• Protection Techniques Standards
• Enclosure Types
• Explosion Proof Enclosures
• Intrinsic Safety
• Nonincendive Systems
• Pressurization & Purging
• Other Types of Protection
• Grounding Considerations
• Maintenance Considerations

WHO SHOULD ATTEND

Electrical engineer, technician in instrumentation, analysis instruments, and supervisor.

INSTRUKTUR

Dr. Waluyo, MT & Team