Few subjects are as contentious and divisive as grounding and its related subjects of lightning protection, surge protection, and shielding of electrical and electronic equipment. Inadequate grounding procedures may be the source of persistent and sporadic challenging-to-diagnose issues within a facility. With the right application of these concepts, you can minimize costly downtime on your plant and equipment, as this course approaches these problems from a novel yet useful angle.

Course Objectives:

Upon the successful completion of this course, each participant will be able to:-

Apply the various methods of grounding electrical systems
Detail the applicable national Standards
Describe the purposes of grounding and bonding
List the types of systems that cannot be grounded
Describe what systems can be operated ungrounded
Correctly shield sensitive communications cables from noise and interference
Apply practical knowledge of surge and transient protection

Who Should Attend?

This course is intended for Building Service Designers, Consulting Engineers, Data Systems Planners and Managers, Electrical and Instrumentation Technicians, Electrical Contractors, Electrical Engineers, Electrical Inspectors, Instrumentation and Control Engineers, Maintenance Engineers, Power System Protection and Control Engineers, Project Engineers, Safety Professionals.

Course Outlines:

Network Structures

Structure of Distribution Networks
The Supply Source
MV Power Supply
Different MV Service Connections
LV Networks inside the Site

LV Switchboards Supply Modes
LV Switchboards Backed up by Generators
LV Switchboards backed up a UPS

Earthing System

The need for Earthing Systems
Step and Touch Voltage
Earthing System at Low Voltage
Medium Voltage Earthing System
Limiting Resistance Earthing

Soil Investigation

Soil Characteristics
Soil as a Grounding Medium
Effect of Voltage Gradient
Effect of Current Magnitude
Effect of Moisture, Temperature and Chemical
Use of Surface Material Layer
Soil Structure and Selection of Soil Model
Investigation of Soil Structure
Classification of Soils and Range of Resistivity
Resistivity Measurements
Interpretation of Soil Resistivity Measurements

Earthing System Design

Simple Earthing System Design
Earthing System Components

Ground Roads
Bar Wiring
Clamping o Welding

Techniques for Ground System Construction
Ground Resistivity Measurements
Ground System Resistivity Measurements
Bonding
High-Frequency Bonding and “Grounding”
Sample Calculations

Grounding of Electronic Equipment

Electrical Power System Selection Consideration
Equipment Selection and Installation Considerations
Grounding Considerations
380 Hz to 480 Hz System
Industrial System Noise Considerations
Industrial System Grounding Practices

Lightning Protection

Integral Protection System
Construction Protection Classes
Accessories and Equipment
Grounding Consideration or Lightning Protection
Separately Mounted Protection Systems
Overhead Ground Wire Type
Waveguide Installation and Grounding
Lightning Generated Transient Surge Protection
Transient Source and Equipment Damage

Surge Protection

Surge Definition
Bonding as a means of Surge Proofing
Surges and Surge Protection
Surge Protection of Electronic Equipment
Achieving graded Surge Protection
Positioning and Selection of Lightning/Surge Arrestor
Surge Protection for Sensitive Equipment

Noise Mitigation

Electrical Noise and Measures for Noise Reduction
Earth Loop as a Cause of Noise
Ways in Which Noise Can Enter a Signal Cable

Filters