Lightning and Over Voltage Protection

DESCRIPTION Physical lightning protection, a high-integrity single point grounding system and appropriate surge protection are the most effective means of assuring minimum risk exposure to transient over voltage events whether caused by load switching, lightning, or other EMP sources. This one day course discusses these threats and the industry best practices to defend against them. MATERI 1. Lightning

• General Facts
• Formation of Lightning
• Positive versus Negative Discharge
• Hot versus Cold Lightning
• Parameters of the Lightning Stroke
• Electric Field Effects
• Electromagnetic Pulse

2. Switching Surges

• Terminology
• Unipolar and Bipolar Transients
• Unidirectional and Bidirectional Transients
• Switching of Capacitive Circuits
• Switching of Inductive Circuits
• Representative Magnitudes of Switching Circuits

3. Physical Lightning Protection

• 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

4. 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

5. Power Line Transient Over Voltage Protection

• Types of Protection
• IC Sensitivity to and Effects of Voltage Stress
• Standard Testing Waveform
• Power Line Monitoring
• SPD Selection Criteria
• Performance Characteristics
• Suppression Technologies
• Failure Modes
• Application

6. Data and Transmission Line Surge Protection

• Data Cable Shield Grounding
• Coaxial Cable Grounding
• Dial-up 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

PARTICIPANT Engineer, technician, electrician, or facility manager, and anyone seeking to protect AC or DC power systems and critical equipment against disruption and damage. TRAINING METHOD Presentation Discussion Case Study Evaluation FACILITY Training Kit Handout Certificate Lunch + 2x Coffee Break Souvenir Pick Up Participants (Yogyakarta)