Transient Overvoltage and Lightning Protection Course Summary This 1 day course is designed for the engineer, technician, electrician or facility manager whose job responsibilities include working with AC power systems, DC power systems, sensitive electronic equipment, voice or data networks and seek protection against disruption and damage caused by transient overvoltages and lightning surge events. Physical lightning protection, a high­integrity single point grounding system, and properly selected and applied surge protection are the most effective means of assuring minimum of interference from transient overvoltages whether caused by load switching, lightning or other EMP sources. The course is applicable to residential, commercial, industrial and communications site environments. Sections include Lightning (formation, direct strikes, field effects), Switching Surges (capacitive circuits, inductive circuits, magnitudes), Physical Lightning Protection (static wires, air terminals, bonding, modeling), Grounding of Electrical Distributions (earth grounding, AC distributions, DC distributions), Power Line Transient Overvoltage Protection (waveforms, technologies, application) and Data and Transmission Line Surge Protection (twisted pair, coaxial cable, EMP considerations). The course is led by an experienced instructor. Our instructors have many years of experience consulting in power, grounding and lightning protection issues and have been active in numerous professional organizations including: IEC, IEEE, ANSI, NEMA, UL Advisory, LPI and PEG. They have also been featured speakers to many national conventions such as the Rockwell/Allen Bradley Fair, Building Industry Consulting Services International Conference (BICSI), the International Wireless Communications Expo (IWCE) and the National Association of Broadcasters (NAB). Each student will receive a text specific manual, including figures, tables and graphs discussed during the presentation. Publicly sponsored classes meet from 8 am to 5 pm with complimentary catered continental breakfast, lunch and refreshment breaks to give extra time for student­faculty interaction. A second day of Site Inspection Training may be added at a discount on in­house classes instructed at client facilities. A Prerequisite for attendance is a basic knowledge of electrical theory including Ohm’s Law. Accredited for 0.8 CEU and BICSI certified.
Table of Contents Section 1: ·
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General Facts
Formation of lightning
Positive versus Negative Discharge
Hot versus Cold lightning
Parameters of the Lightning Stroke
Electric Field Effects
Electromagnetic pulse Section 2: ·
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Physical Lightning Protection
Static and Shield Wires
Protection of Transmission and Distribution Systems
Facility Direct Stroke Protection
Types of Systems
Air Terminals
Coursing and Down Conductors
High Frequency Considerations
Lightning Ground Impedance
Bonding Requirements
Rolling Sphere Modeling
Tower Grounding and Protection Section 4: ·
Switching Surges
Terminology
Unipolar and Bipolar Transients
Unidirectional and Bidirectional Transients
Switching of Capacitive Circuits
Switching of Inductive Circuits
Representative Magnitudes of Switching Circuits Section 3: ·
Lightning
Grounding of Electrical Distributions
Earth Ground Electrode Systems
Grounding Electrode Conductor Sizing and Bonding
Resistivity, Resistance and Continuity Testing
Single Point Grounding of AC and DC Distributions
Equipment Grounding Conductors
Master Ground Bars and Bulkhead Entry Panels
Isolated Ground Systems
Halo Ground Systems
Grounding of Line Treatment Devices
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Types of Protection
IC Sensitivity to and Effects of Voltage Stress
Standard Testing Waveforms
Power Line Monitoring
SPD Selection Criteria
Performance Characteristics
Suppression Technologies
Failure Modes
Application Section 6: ·
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Power Line Transient Overvoltage Protection
Data and Transmission Line Surge Protection
Data Cable Shield Grounding
Coaxial Cable Grounding
Dial­up Telephone Line Surge Protection
Leased Telephone Line Surge Protection
Ethernet/LAN Line Surge Protection
RS 232 Line Surge Protection
Coaxial Transmission Line Surge Protection
Protecting Data Lines against EMP