Electrical engineering courses

PRACTICAL ELECTRICAL SUBSTATION SAFETY FOR ENGINEERS & TECHNICIANSM

Ref No: 2015062

INTRODUCTION 
Electrical substation safety is an important issue in utility networks as well as large industrial installations and requires adequate attention in the stages of system planning, design, installation, operation and maintenance. A number of serious accidents including fatalities occur every year in industrial establishments due to accidents involving electricity, resulting in huge financial losses and wasted man-hours. Electrical safety is a well-legislated subject and the various Acts and Regulations enacted in UK and elsewhere lay a lot of stress on the responsibility of both employers and employees in ensuring safe working conditions.
In this course, we will take a look at the theoretical aspects of safety as well as the practical and statutory issues, with special emphasis on UK regulations. Safety is not simply a matter of taking precautions in the workplace. It has to start at the stage of equipment design. Safety should be built into the design of electrical equipment and it is the responsibility of every manufacturer of electrical equipment to remove every possible hazard that can arise from its normal use. Correct selection and application of electrical machinery is also important for ensuring safety. A thorough inspection during initial erection and commissioning as well as on a periodic basis thereafter is also very essential to ensure safety. Batteries used in substations need particular attention since they contain toxic materials such as lead, corrosive chemicals such as acid or alkali. 
Electrical safety is not just a technical issue. Accidents can only be prevented if appropriate safety procedures are evolved and enforced. This includes appropriate knowledge of equipment and systems imparted through systematic training to each and every person who operates or maintains the equipment. We will cover all these aspects in detail.

OBJECTIVES 
At the end of this workshop, participants will be able to:

  • • Identify the hazards in O&M work in different parts of electrical installations 
  • • Identify the various statutory and legal regulations/acts dealing with electrical safety at work 
  • • Appreciate the basic theoretical aspects involved in electrical safety  
  • • Understand the importance of proper design of electrical equipment in ensuring safety
  • • Gain a clear understanding of the procedures/practices adopted for safe working 
  • • Appreciate the role of regular inspection and condition-based maintenance in ensuring safe operation 
  • • Gain an insight into the organisational aspects of safety 
  • • Become familiar with the organisation’s electrical safety rules (applicable to on-site training)
     

CHAPTER 1: OVERVIEW
-Hazards of general nature in industrial installations 
-Electrical hazards
-Direct and Indirect electric shock
-The deadly combination of heights and electric shock
-Hazards due to arcing/flashover
-Hazards from use of electrical equipment in explosive environment
-Hazards due to high temperature in electrical equipment
-Need for periodic inspection and maintenance for safe operation of electrical equipment

CHAPTER 2: BASIC THEORY OF ELECTRICAL SAFETY
-Electrical shock-Why does it happen?
-Touch and step potential (voltage)
-Direct and Indirect contact
-Role of electrical insulation in safety 
-Avoiding electric shock-different approaches
-Earth leakage circuit breakers 
-Earthing of power supply systems and its safety implications
-Role of earthing of equipment enclosures (protective earthing) in human safety
-Earthing in outdoor installations
-Earthing of buildings and structures

CHAPTER 3: GROUNDING DESIGN OF ELECTRICAL SUBSTATIONS
-Introduction 
- System grounding practices for different voltages 
- Design approach - basics 
- Ground fault current 
- Voltage of HV substation grounding system during faults 
- Grounding of MV/LV electrical installations 
- Design of grounding grid for an HV outdoor substation 
- Soil resistivity variations using 2-layer model 
- Transferred potential 
- Points in the substation for special attention 
- GIS equipment 
- Substations feeding to DC transmission systems 
- Summary of steps for ensuring effective substation grounding 
- Summary

CHAPTER 4: SAFETY ASPECTS IN ELECTRICAL EQUIPMENT DESIGN
-Objectives of safe design 
- Preventing electric shock 
- Importance of insulation in electrical safety 
- Importance of enclosures in ensuring safety 
- Prevention of adverse thermal effects 
- Isolation arrangements 
- Role of codes and standards in equipment/installation safety 
- Summary

CHAPTER 5: SAFETY IN BATTERY INSTALLATIONS
-Introduction 
- Applicable codes and regulations 
- Hazards in battery installations 
- General Safety Precautions 
- Safety aspects of battery premises 
- Ventilation 
- Transportation, handling and storage 
- Installation accessories-salient points 
- Precautions during inspection of batteries 
- Safety aspects during dismantling and disposal 
- First aid 
- Hygiene and housekeeping 
- Personal protective equipment 
- Summary

CHAPTER 6: ORGANIZATIONAL ASPECTS OF SAFETY
-Introduction 
- Organizational responsibility for safety 
- Safety functions and coordination 
- Accident reporting and records 
- Summary

  • • Instrumentation and Control Engineers
  • • Consulting Engineers
  • • Electrical Engineers
  • • Project Engineers
  • • Maintenance Engineers
  • • Power System Protection and Control Engineers
  • • Building Service Designers
  • • Data Systems Planners and Managers
  • • Electrical and Instrumentation Technicians 

Trainees shall receive a portfolio containing a comprehensive course manual.

Attendees shall receive a certificate of attendance from AMAD Tech.