LV Power - Wiring Systems & Installation Practices


1-day course

CPD Credit: 7 hours, C1

Course Overview

This course provides an overview of the design of low voltage (LV) power distribution for buildings with the focus on wiring systems and installations practices. Is it also covers the fundamentals of load estimation and cable sizing with some worked examples given. The course can precede or follow on from “LV Power - Switchgear” (CPD Course Reference “LVS”) which focusses more on design and selection of the LV switchgear system.

Learning Objectives

At the end of the course attendees will have learned about the principal wiring systems and installations methods used in Ireland and the UK for power distribution. These are summarised in the programme below.


Section 1 - ESB Supply Arrangement – 1 and 3 Phase 

Section 2 - Load Estimates - Worked Examples 

Section 3 - Typical LV Distribution Arrangements 

Section 4 - Cables and Wiring Systems 

Section 5 - Cable Management Systems 

Section 6 - Busbar Trunking Systems 

Section 7 - Sizing LV Cables - Overview of the process 

Section 8 - Wiring of Systems Specified by Others 

Section 9 - Switching & Isolation of Equipment 

Section 10 - Wiring of HVAC Services 

Section 11 - Wiring of Water Services 

Section 12 - Wiring of Catering Equipment 

Section 13 - Wiring of Miscellaneous Equipment 

Section 14 - Wiring of Fire Fighting Equipment 

Section 15 - Wiring of Transport Services

Who Should Attend?

This course will benefit electrical engineers and contractors involved in the design of electrical services.

Trainer's Profile

Brendan Dervan is a Chartered Engineer with over 44 years’ experience in all aspects of mechanical and electrical building services including; design, installation, commissioning and maintenance. After completing an electrical apprenticeship in 1982 he went on to study electrical engineering in DIT. He has worked in M&E consultancy at senior engineer / director level since 1990. In 1999 he started his own M&E consultancy Dervan Engineering Consultants (DEC) which merged with Cundall in 2016. His Company provided M&E consultancy and project management services to a diverse range of clients in both the public and private sectors. He is owner and director of Best Training since 2019.

Please contact the Team for further information on scheduled course dates and In-Company options. You can reach us by phone: 01 665 1305 or email