Effective Grounding and Bonding: Correct Applications for Safe Electrical Installations


For various reasons, electrical system grounding and bonding procedures are not very well understood. This seminar provides up-to-date theory, practice and knowledge necessary for design, construction, safety, operations and management of electrical facilities. The seminar offers a comprehensive coverage of grounding and bonding procedures, electrical code requirements, substation and safety grounding, sensitive electronic equipment and lightning protection. Practical case studies are used to reinforce knowledge of the grounding and bonding principles studied during the seminar.

Who should attend

Engineers, technologists, managers, electrical contractors and consultants involved in the design, installation, inspection, maintenance or operation of electrical facilities.

Course objectives

Participants will learn to:

  • Identify and avoid electrical hazards caused by incorrect grounding and bonding methods
  • Reduce electrical equipment problems and failures by employing safe and correct grounding and bonding methods
  • Become more familiar with electrical code requirements
  • Maximize safety in the operation of all types of electrical facilities

You will receive

Each participant will receive a set of notes that will serve as information and reference.


Day 1 - registration/check-in will start at 8:00 a.m. with sessions to begin at 8:30 a.m. and adjourn at 4:00 p.m. Day 2 will commence at 8:30 a.m. and adjourn at 4:00 p.m. There will be 15 minute mid-morning and afternoon breaks. Lunch is on your own from 12 noon to 1:00 p.m.

Program outline

Day 1

Grounding and bonding definitions
Grounding and bonding purposes
Electrical shock and body currents
What is Grounding?
Grounding methods
Electrical code requirements
Objectionable ground current flow
Grounding electrodes and grounding methods
Effects of emergency generators
Communication systems grounding methods
Electrical Safety Grounding
Electrical shock hazards
CSA Standard Z462-08 Workplace Electrical Safety
Electrical safety grounding
What is Bonding?
Body resistance and electric shock
Bonding to the electrical system neutral
Electrical code requirements
Methods of bonding and what must be bonded
Single point bonding
Other Important Information
Ground faults - impedance effects and effective fault paths
Earth resistance vs. resistivity
Ground fault protection
Single conductor cables - circulating and eddy currents
Questions and Answers

Day 2

Substation Grounding
Step and touch potentials
Grounding resistance and resistivity
Substation grounding requirements
ANSI/IEEE grounding standard
Electronic Equipment
Electrical disturbances
Frequency response of conductors
Minimizing electrical noise
Shielding methods
Lightning Protection
The nature of lightning
Lightning protection principles and methods
Protection equipment and grounding methods
Measurement Techniques
Ground resistance and resistivity
Effects of moisture and temperature
Measurement methods
Case Study #1 - Retrofitting an Existing Installation
Case Study #2 - Fatality Study
Open Discussion


Les Stoch is President of L. Stoch and Associates, offering electrical engineering services, professional development and training. His industry experience includes 21 years with Ontario Hydro as an Electrical Inspection Manager and Engineer. Mr. Stoch obtained his Electrical Engineering Degree from Sir George Williams University (Concordia) in Montreal. He is a member of Professional Engineers of Ontario, the American Society for Quality, the Ontario Electrical League and the International Association of Electrical Inspectors. He served for eight years on the Provincial Advisory Committee, which develops Ontario's Electrical Safety Code. His work includes forensic engineering and auditing electrical utilities against Ontario's distribution regulation.