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Pipeline Grounding for AC/DC Systems

One-Day Training Seminar

Course Summary
This course shows how all of the key elements of grounding systems at compressor, storage, and metering stations function, and emphasizes practical solutions to common problems.

A high integrity grounding system is the single most effective means of assuring quality power distribution with a minimum of interference. This practical, detailed look at grounding covers the earth ground electrode system, lightning protection, a full range of both AC & DC grounding systems, protection of utility grounding systems from cathodic protection currents, data line and instrumentation grounding, and ESD and RFI considerations.

Who Should Attend?
This course is designed for the technical professional whose job responsibilities include working with AC and DC systems powering critical equipment.

A prerequisite for attendance is a basic understanding of electrical theory and Ohm's law.

What to Expect
The class meets from 8 am to 5 pm. Each student will receive a course manual that includes the figures, tables and graphs discussed during the presentation.

Additional Training
Upon request, a second day of hands-on Site Inspection Training for private groups may be added at a discount following this course. Site Inspection Training takes place at a client facility, where students will learn the principles and techniques to identify deficiencies in a site’s electrical, grounding, and protection systems including visual inspection and using various field measurement instruments.

Accredited for 0.8 Continuing Education Units.


COURSE OUTLINE

Section 1: Earth Ground Electrode System

  • Grounding Electrode System Components
  • Sizing the Grounding Electrode Conductor
  • Effects of Soil Resistivity
  • Grounding Electrode System Techniques
  • Earth Ground Resistance Testing
  • Multiple Ground Violation

Section 2: Grounding For Lightning Protection

  • Types of Systems (Conduction, Attraction, Dissipation)
  • Design and Installation
  • Lightning Ground Impedance
  • Bonding Requirements

Section 3: AC Grounding Practices

  • Safety Ground Considerations
  • Fault Currents
  • Touch Safety
  • NEC Requirements
  • Sizing the Neutral for Linear and Non-Linear Loads
  • European Ground/Neutral Protection Systems

Section 4: Control Room AC Grounding Considerations

  • System Ground (Logic Zero Reference)
  • Grounding Techniques for Reliable Equipment Performance
  • Proper Neutral-Ground Bonding
  • Sizing Wire to meet Computer Industry Standards
  • Effect of Unbalanced Loads
  • Grounding Line Treatment Devices
  • Direct Current Isolation Techniques

Section 5: Control Room DC Grounding Considerations

  • Ring Ground
  • Halo Ground
  • Single Point Grounding Techniques
  • Equipment Ground Bar (EGB)
  • Master Ground Bar (MGB)
  • Frame and Logic Ground Bars (FGB/LGB)
  • Cable Entrance Ground Bar

Section 6: ESD And EMI/RFI Grounding Practices

  • Triboelectric Charging
  • Surface Resistivity
  • Discharge and Decay
  • Human Body as a Conductor to Ground
  • Humidity Control
  • Work Surfaces
  • Coupling
  • Signal Reference Grids
  • Skin Effect
  • Impedance of Round Conductors
  • Bonding and Shielding

Section 7: Data Line And Instrumentation Grounding

  • Low Frequency Shield Grounding
  • High Frequency Shield Grounding
  • Coaxial Cables
  • Cable Terminations
  • Cable Grounding for Multiple Buildings
  • Proper Grounding of Transient Overvoltage Protectors

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