Operational safety of all electrical installations is crucial, any compromise with safety, quality and design will have catastrophic effects on the assets, personnel, and operations. The consequences of an incident involving high voltage electricity are usually more significant than for low voltage. They include severe injury or death from electric shock which may be received by direct or indirect contact, tracking through or across a medium, or by arcing burns from arcing, explosion, or fire. The first line of defense when an abnormal situation arises and to isolate the faulty circuit safely are the circuit breakers and protection relays.
An effective earthing or grounding system is vital as it constitutes the integrity of the electrical installation. Earthing systems help to reduce step and touch voltages as well as Earth Potential Rise (EPR) at the defective high voltage structure when there is a fault or equipment malfunction at the substation. This will arrest leakage currents and improve power quality issues. The implementation of energy isolation technique includes the proven OSHA lock out tag out method. An electrical installation is deemed to be safe with the inclusive of aggressive maintenance culture. A way forward is the conditioned based maintenance with sophisticated testing and measuring instruments.
This High Voltage Operational Safety for Engineers & Technicians training course will highlight:
- Arc flash incidents including the importance of safety, risks and hazards of electricity
- Eco efficient high voltage circuit breakers
- Types of earthing network and its merits
- Energy isolation techniques including LOTO
- Implementation of an effective maintenance programme
At the end of this Energy Training Centre training course, you will learn to:
- Understand the causes of arc flashes and severity of electrical accidents
- Explain the necessity merits of eco efficient gas and vacuum high voltage circuit breakers
- Learn the significance an effective earthing or grounding system
- Determine how to isolate energy isolation with lock out and tag out
- Interpret the testing and measuring instrument results when carrying out maintenance programmes
Each course participants will receive a copy of the comprehensive course notes and the power point slides. The presenter will outline and discuss the topics using computer displays, video clips and power point presentation. The course is designed to have an interactive format to maximize delegate participation. Questions and answers are encouraged throughout and at the daily sessions. Needs-based case studies and examples will be discussed in problem solving workshop sessions.
Upon completion of this High Voltage Operational Safety for Engineers & Technicians training course the organizational impact would be:
- Productivity increase through minimisation of project time acceptance/design and commissioning
- Technical training and up-skilling to improve and realise the full potential of a competent workforce
- Identification for opportunities of improvements due to deep understanding of the presented state-of-the-art technologies
- Networking of personnel with technology leaders and other engineers and technicians with strong field experience
- Exposure of personnel to the standard international procedures
- Attitude change of workforce, as continuous follow up of new technologies and they’re up taking could otherwise create workforce with high resistance to change due to lack of understanding
On successful completion of this High Voltage Operational Safety for Engineers & Technicians training course delegates will be able to understand:
- The importance of safety and dangers of arc flashes
- Understand the types of high voltage circuit breakers
- Identify the various methods and designs of earthing network
- Appreciate the importance of energy isolation
- Competent in implementing LOTO
- Recognize the merits of an effective maintenance programmes incorporating the usage of modern testing instruments
The technicians and maintenance staff will be able to comprehend the importance of high voltage operational safety. This will enable them to exercise care and alertness during maintenance work.
This High Voltage Operational Safety for Engineers & Technicians training course is suitable to a wide range of professionals but will greatly benefit:
- Electrical Engineers
- Maintenance Technicians
- Management Professionals
- Project Engineers
- Safety Officers
Day One: Hazards of Electricity and Protective Devices
- Importance of operational plant safety
- Electrical safety, hazards, and risks control measures
- Arc flash hazards related to NFPA 70E, IEEE 1584 2018
- Consequences of arc faults
- Categories and types of LV and HV circuit breakers
- Eco efficient gas circuit breakers
- Eco efficient vacuum circuit breakers
- Digital numerical protection relays
Day Two: Arc Flash Hazards Analysis and Mitigation Techniques
- Overview of arc blast and arc flash
- Significance of arc flash warning labels and hazard risk categories
- Incident energy and its impact including calculations
- Arc flash protection boundaries and the Lee Method
- Limits of approach
- Arc flash risk assessment and strategies
- Arc flash protection relays
- Arc flash hazards analysis software
Day Three: Earthing Systems Safety and Risk Assessment
- Earthing requirements for electrical safety
- Earthing system design for an electrical installation
- Merits of the TT and TN earthing systems
- Grounded and ungrounded earthing systems
- Effects of high and low resistance earthing
- Earth fault relays and relevant instrumentation
- Restrictive and sensitive earth faults
- Surge and lightning protection
Day Four: Stored Energy Isolation with Lock Out and Tag Out (LOTO)
- Types of stored energy characteristics
- Electrical isolation techniques
- Isolation verification and techniques
- Lock out and tag out OSHA procedures
- Removal of locks and tags
- Stored energy during maintenance
- Dangers of stored energy
- Electrical isolation certificates
Day Five: Safety Related Maintenance Requirements and Instrumentation
- Importance of maintenance in high voltage electrical installation
- Maintenance Strategies
- Condition based maintenance related to high voltage installation
- Thermography for high voltage installation assets
- Partial discharge monitoring for high voltage assets
- State-of-art testing instruments for power transformers
