BS7909: Temporary Electrical Installations


This 1-day course provides guidance on the design, erection and management of temporary power systems.

It provides delegates with a clear understanding of the application of both BS7671 and BS7909 to events and other relevant industry guidance.

It will help all those working with any temporary power system including agricultural shows and outdoor fairs, concerts, theatrical events, film and TV broadcasting, exhibitions, festivals as well as temporary buildings.

Target Audience

The course is suitable for electrical engineers, electricians and technicians who need to know the requirements for temporary electrical installations and anyone who requires a greater understanding of these types of installations. Candidates must hold a current 17th edition qualification and be familiar with the Code of Practice for In-Service Inspection and Testing of Electrical Equipment in order to attend the course.

What you will learn

A quick guide to electricity, what it is and how it flows around circuits, including ohms law and power calculations;
Understand the nature of three-phase electrical generation and distribution, including the use of generators;
Understand the operation of protective devices such as fuses, circuit breakers and RCDs and their appropriate use;
Look at earthing methods and protective bonding;
Be able to design systems to have appropriate protective device discrimination to prevent unwanted ('nuisance') tripping;
Understand how to work out cable calculations to prevent cable overheating and excessive voltage drop;
Know how to work out prospective short circuit currents and earth fault loop impedances to ensure protective devices operate effectively;
Understand how and what to test on-site along with certification requirements;
Understand the interaction and application of legislation, standards and codes of practice;
Understand the content and application of BS 7909;
Learn how and when to apply BS 7671 and BS 7909 and how they complement each other.

Further information

Proactive Technical Training
Proactive Technical Training
1 Day
Scheduled dates
Course type:
Stafford, Tring

Contact Information

Proactive Technical Training

Unit 5A
Icknield Way Industrial Estate
HP23 4JX