IE073: Intrinsic Safety, Galvanic Isolation and Zener Barriers Technology & Applications IE073 Rev.001 CMCT COURSE OUTLINE Page 1 of 5
Training Description: The hazardous-area circuits 'float' i.e. is not referenced to earth via the interface unit. This allows the user to take advantage of the inherent earth fault rejection, possibly reinforced with an earth leakage detector (no-fail), or alternatively, by earthing the circuit at one point, the user can produce a preferred mode of failure (fail-safe). The isolation of the hazardous area, safe area and power supply circuits from each other leads to a high degree of operational flexibility, and reduces any interaction between earths on the circuits, and removes the need for a detailed knowledge of the internal circuits of the safe area apparatus. Intrinsic safety is a technique for ensuring that the electrical energy available in a circuit is too low to ignite the most easily ignitable mixture of gas and air. The ignition mechanisms considered are electrical, by spark energy, and thermal, by hot surfaces. The design of the circuit and equipment is intended to ensure safety both in normal use and in all probable fault conditions. Among the faults considered is the possibility of unacceptable power being fed through from the safe-area apparatus. Consequently, intrinsic safety is essentially a system concept in which the apparatus in the hazardous area, the apparatus in the safe area. And the combination of these two must all be considered. Training Objective: By the end of the training, participants will be able to: Explain the classifications of the hazard plant and equipment Understand the hazard area classification in IEC/European countries Understand the obligations required in operating hazard plant Describe the Intrinsically Safe system principle, components, categories and applications. Understand what a ground loop is Understand the principle and application of safety barriers Understand the principle and application of Galvanic Isolators Compare between safety barriers and galvanic isolators Identify the suitable barriers for different applications Verify the safety and operational compatibility Check the suitable isolator specification for particular application Select suitable safety interface for smart electrical devices. Install the Intrinsic all safe barriers according to UK code of practices Identify is earthing cable specification for IS Installation. Find IS faults and repair it Training Designed for: This course is intended for all Instrumentation and Control Engineers & Technicians, Electrical Engineers & Technicians, Projects Engineers & Technicians, Computers and IT Engineers and Technical Supervisory Personnel involved in intrinsic safety, galvanic isolation and Zener barriers technology & applications. IE073 Rev.001 CMCT COURSE OUTLINE Page 2 of 5
Training Program: DAY ONE: PRE-TEST Introduction Intrinsic Safety Who's who in intrinsic safety Classification of hazardous areas Apparatus or gas grouping Temperature classification Methods of protection for equipment used in hazardous areas Ingress protection (IP) system for enclosures Dust hazards Earthing and bonding Connection of intrinsically safe equipment to various types of mains supply Intrinsically safe systems DAY TWO: Intrinsic Safety (Continuation) Hazardous-area apparatus Hazardous-area cables and accessories Safe-area equipment Documentation and administration Inspection Fault-finding and repairs Legal requirements DAY THREE: Galvanic isolation Power supplies Enclosures and areas of use Switch/proximity detector interface units Intrinsically safe output, switch-operated relay DAY FOUR: Galvanic isolation (Continuation) Earth leakage detector Solenoid/alarm drivers Trip amplifiers Analogue-signal interface units High-frequency digital interface units IE073 Rev.001 CMCT COURSE OUTLINE Page 3 of 5
DAY FIVE: Zener Barriers Barriers components Barriers types The mounting and mechanics of barriers Choosing a barrier system Thermocouples Alternating-current sensors and signals Resistance thermometers Strain-gauge bridges and potentiometers Transmitters Switches and proximity detectors Controller outputs Solenoids, alarms, LEDs Course Conclusion POST-TEST and EVALUATION Training Requirement: Hand s on practical sessions, equipment and software will be applied during the course if required and as per the client s request. Training Methodology: This interactive training course includes the following training methodologies as a percentage of the total tuition hours:- 30% Lectures, Concepts, Role Play 30% Workshops & Work Presentations, Techniques 20% Based on Case Studies & Practical Exercises 20% Videos, Software & General Discussions Pre and Post Test Training Certificate(s): Internationally recognized certificate(s) will be issued to each participant who completed the course. Training Fees: As per the course location - This rate includes participant s manual, hand-outs, buffet lunch, coffee/tea on arrival, morning & afternoon of each day. IE073 Rev.001 CMCT COURSE OUTLINE Page 4 of 5
Training Timings: Daily Timings: 07:45-08:00 Morning Coffee / Tea 08:00-10:00 First Session 10:00-10:20 Recess (Coffee/Tea/Snacks) 10:20-12:20 Second Session 12:20-13:30 Recess (Prayer Break & Lunch) 13:30-15:00 Last Session For training registrations or in-house enquiries, please contact: Aisha Relativo: aisha@cmc-me.com Tel.: +971 2 665 3945 or +971 2 643 6653 Mob.: +971 52 2954615 Training & Career Development Department IE073 Rev.001 CMCT COURSE OUTLINE Page 5 of 5