Electrical Safety and Grounding Practices in Electrical Installations

Introduction

It has been determined that over 70 percent of all electrical problems in industrial, commercial, and institutional power systems are due to poor grounding and wiring errors. Without proper grounding, sensitive electronic equipment is subjected to destruction of data, erratic equipment operation, and catastrophic damage. This electrical grounding seminar will give participants a comprehensive understanding of practical applications of proper grounding and wiring practices.

Increase Your Knowledge

• Focus on specific electrical grounding problems and consequences relating to fires, the safety of personnel, and damage to equipment
• Participate in discussion of electrical grounding problems and how to overcome or avoid them
• Gain a firm foundation of knowledge for your next project involving electrical grounding
• Develop your knowledge of theory and practice

Learn About

• The requirements of the Canadian Electrical Code
• Specific grounding problems, installations, and code requirements
• Testing procedures for residential, industrial, commercial, and institutional electric power grounding systems
• Practical solutions to grounding problems

Objectives

After Attending, You Will

• Work more safely and efficiently
• Have a better understanding of Article 250 in the 2002 N.E.C
• Be more aware of the benefits of good grounding systems
• Be better prepared to design your next grounding system

Training Methodology

This is an interactive course. There will be open question and answer sessions, regular group exercises and activities, videos, case studies, and presentations on best practice. Participants will have the opportunity to share with the facilitator and other participants on what works well and not so well for them, as well as work on issues from their own organizations. The online course is conducted online using MS-Teams/ClickMeeting.

Who Should Attend?

This electrical grounding seminar training is a must for electrical engineers, design engineers, electrical engineering managers, project managers, power quality specialists, maintenance managers, consultants, and technologists responsible for the design, construction, installation, inspection, operation, or maintenance of electrical systems, designers, contractors, and electrical technicians, inspectors, safety personnel and other employees responsible for the operation and maintenance of electrical grounding systems in a commercial, industrial, institutional or utility setting.

Course Outline

Session 1: ELECTRICAL GROUNDING – OVERVIEW

• Grounding- Definitions

• Grounding methods

• System Grounding

• Single Point Grounding

• Solid Grounding

• Impedance Grounding

• Reactance Grounding

• Resistance Grounding

• Isolated Grounding

• Ground Faults

• Why Ground Circuits and Systems

• Grounding Systems

Session 2: Standards and Codes

• Classification of Various Grounding Standards. Codes and Rules

• Canadian Standards Association:

• CSA Grounding and Bonding (C22.1 – 98, Section 10)

• CSA Protection and Control (C22.1 – 98, Section 14)

• CSA Installation of Electrical Equipment (C22.1 – 98, Section 26)

• CSA Electrical Communication Equipment (C22.1 – 98, Section 60)

• Canadian Electrical Code:

• Bonding and Grounding of Electrical Equipment (C22.2 No. 0.4 – M1982 R1993)

• Grounding and Bonding Equipment (C22.2 No. 41 – M1987 R1993)

• (C22.2 No. 0.4 – M1982 R1993)

• NEC – National Electrical Code

Session 3:

• Electrical Grounding Electrode System

• Grounding Theory

• Parameters, Measurements, and Calculations

• Grounding Electrodes: Construction And Installation

• Ground Resistance and Resistivity

• Grounding Electrode Conductor

• Electrical Grounding and Corrosion

• Materials-Splicing

• Installation and Protection

• Sizing the grounding Electrode Conductor

Session 4:

• Circuit grounding

• Grounded Conductor

• Direct Current Systems

• Alternating-Current System

Session 5:

• Equipment Grounding

• Major Requirements: Leakage Current, Proper Sizing

• Generators

• Substations

• Transformers

• UPS systems: Online, Standby, Line-Interactive, Alternative

• Installation

• Sizing the equipment grounding

• Identification of the Equipment grounding Conductor

• Electric Shock

• Grounding and Electric Shock

Session 6:

• Separately Derived Systems

• Main Bonding Jumper

• Portable generators

• Vehicle Mounted Generators

Session 7:

• Electrical Grounding two or more Buildings

• Grounded and Ungrounded Systems

• Grounding the Second Building

Session 8:

• Lightning Protection- Electrical Grounding

• Lightning- Characteristics

• Protection Systems

• Rolling Sphere Concept

• Lightning Protection System Specifications

Session 9:

• Electronic Equipment Grounding

• Introduction and Definitions

• Computer and Electronic Equipment Grounding

• Telecommunication Rooms and Closets

• Data Processing Equipment Grounding

• Electronic Security Equipment Grounding

Session 10:

• Telecommunication Site Grounding

• Grounding Subsystems

• Exterior Ground Ring

• Interior Ground ring- Halo Ground

• Low Frequency Networks

• High frequency Networks

Session 11:

• Computer Room Grounding

• System Reference Zero

• Detection of a faulty Neutral-Ground System

• Sizing Wiring to meet Computer Industry Standards

• Grounding line Treatment Devices

• Transient Overvoltage Protector Grounding

• Gas Tubes

• Metal Oxide Varistors

• Silicon Avalanche Diodes

Session 12 (A):

• Instrumentation and Control

• EMI (Electromagnetic Interference)

• Inductive, Capacitive, and Radiation Coupling

• RFI (Radio frequency Interference)

• Electrostatic Discharge

• Shields grounding

• Coaxial Cables

• Telephone Lines

• Data lines grounding - RS232

Session 12 (b):

• EMI on Electronic Circuits

• Susceptibility- Immunity

• Cable Shielding and Grounding

• Losses by Absorption and reflection

• Grounding Low and High frequency Shielding

• Grounding High frequency Shielding

• Coaxial Cables

• Superficial Resistivity

• Resonance and Skin Effect