Electrical Installations and Maintenance: Design, Inspection, Testing, Maintenance and Resilience

Introduction

The electrical designer, installer and maintenance team are all expected to provide an installation that is safe, cost effective and reliable.

Beginning with the fundamental principles that always apply to ensure safety, the course then progresses through basic design, testing and maintenance aspects, concluding with a review of power quality problems that affect the reliability of any installation where high technology interfaces with the supply.

Objectives

On successful completion of this course, delegates will understand:

• The basis for safety and functional design.
• How to assess the characteristics needed to commence a design process.
• How to change the installation design where power quality may affect the reliability of the supply.
• How new technology impacts on new and existing electrical installations.
• Inspection and testing techniques that affect the maintenance routine of an installation.
• How to improve productivity by improving the reliability of an installation.

Target Audience

This course is directed at electrical technicians, maintenance professionals and electrical engineers who would like to expand their knowledge of the safety and functional characteristics that result in the reliability of an electrical installation

Electrical Engineering Outline

The course covers the following topics:

Preliminary Design Requirements

The design process requires consideration of the installation requirements with respect to the load characteristics, the circuit arrangements, and the source of supply.

• Building services
• Purpose of an installation
• Cables
• External influences
• Transformers
• Compatibility
• Protective devices
• Maintainability

Design Characteristics

To enable work to begin on any electrical installation a detailed specification is required. This specification will be based on the safety and functional requirements considered in day one

• Electrical safety
• Cable installation
• Terminations
• Wiring regulations
• Inspection and testing
• Cable sizing
• Documentation

Designing an Installation

Building on the first two days of the course this module puts into practice the theories developed.

• Single-phase design
• Power quality
• Three-phase design
• Cable requirements
• Protective device selection
• Installation method
• Earthing and bonding
• Source of supply

Commissioning and Testing

The requirements for any maintenance routine begin during the design process and continue through installation into operation. In many countries, there is also a legal requirement to maintain an installation in a safe condition.

• The need to maintain
• Test results
• What is maintenance
• Documentation
• Introduction to commissioning
• Harmonics
• Inspection
• Earth leakage

Periodic Maintenance

After the initial verification of the safety and function of the installation, it is necessary to ensure that safety remains effective throughout the lifetime of the installation.

• Maintenance Planning
• Periodic inspection
• Equipment reliability
• Complex testing
• Categories of system
• Harmonic analysis
• Safety-critical
• Records