COURSE OVERVIEW:

The purpose of this course is to provide deep technical expertise in the implementation of "Intrinsic Safety" (IS) as a primary protection method for instrumentation in hazardous areas. Unlike other protection methods that focus on containing an explosion, Intrinsic Safety focuses on limiting the electrical and thermal energy available in a circuit so that it is incapable of causing an ignition in the first place. This program explores the rigorous physics and engineering requirements needed to ensure that low-voltage signals remain safe in explosive atmospheres.

The scope of this training encompasses the technical design and selection of interface devices, specifically Zener Barriers and Galvanic Isolators. Participants will explore the electrical principles of energy limitation, addressing the role of inductance and capacitance in storing energy within a field loop. The curriculum is specifically designed to guide engineers through the process of "Entity Matching," ensuring that the combined parameters of the field device, the cable, and the barrier meet the required safety certification.

Coverage includes the practical aspects of installation, grounding, and maintenance of IS systems. Attendees will learn the critical differences between Zener Barriers, which require a high-integrity safety earth, and Galvanic Isolators, which provide a physical break in the circuit to simplify grounding. By focusing on the details of circuit calculation and field wiring, the course ensures that participants can design and maintain instrumentation loops that provide the highest level of safety in the most volatile environments.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Analyze the physics of ignition: Spark Energy and Thermal Limits.
• Differentiate between Intrinsic Safety (Ex i) and Flameproof (Ex d).
• Select appropriate Zener Barriers and Galvanic Isolators for a loop.
• Execute "Entity Parameter Matching" for IS Loop Verification.
• Implement High-Integrity Safety Grounding for Zener Barriers.
• Analyze the impact of Cable Inductance and Capacitance on safety.
• Design "Simple Apparatus" and "Certified Apparatus" interfaces.
• Troubleshoot electrical faults in Intrinsically Safe circuits.
• Implement correct Wiring Segregation (50mm Rule) and Color Coding.
• Manage "Descriptive System Documents" (DSD) for IS loops.
• Evaluate the benefits of Isolators vs. Barriers for specific sites.
• Ensure compliance with IEC 60079-11 and IEC 60079-25 standards.

TARGET AUDIENCE:

This course is intended for Instrumentation Engineers, Electrical Technicians, Control System Designers, and Hazardous Area Inspectors.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.