The IET Guidebook on temporary power

the guidebook

The all new temporary power guide

The Institute of Engineering Technology (IET), guardians of electrical standards in the UK and publishers of the Wiring Regulations (BS 7671) have recently launched the UK's first guide book aimed specifically at those dealing with temporary power, particularly at events and similar. The guide takes the requirements of both BS 7671 and BS 7909, the Code of practice for temporary electrical systems for entertainment and related purposes and shows the reader how to apply them to temporary electrical systems in an effective manner. The books author, James Eade, has worked in the event industry for over 25 years including theatre, touring and outdoor spectacles and also represents the events industry on the committees that develop both Standards. He noted that "Many technicians working in the industry find it hard to translate the requirements of the Wiring Regulations to the varied nature of events and similar temporary applications, especially as current guidance and training books all discuss the application of the standard in the context of single-phase domestic and to a lesser extent, commercial installations. Until now, there has been no guide or reference that effectively explains issues such as how to safely distribute a 400 amp three-phase supply around a muddy field; which bits of a festival stage should be considered an extraneous-conductive-part, or when disabling RCD protection may be appropriate for example." This discrepancy in lack of guidance is surprising when the size of the temporary electrical industry is considered. The events industry alone is worth around £15bn to the UK economy annually, plus there are other industries such as the rail, armed services or supply network operators for example that all use temporary power systems of varying complexities. The aim of this book is to explain to the reader the salient requirements of both BS 7671 and BS 7909 and how to apply them in a practical context in the temporary environment. It goes beyond the scope of both standards and includes subjects such as generator housekeeping, event venue requirements, exhibitions and periodic appliance testing as well as the testing requirements of systems themselves. Essentially those who use, design or test temporary power systems, have venues where they are deployed regularly, rent equipment into the industry or who are responsible for their management and safe use will find this book an invaluable reference.  Standards are necessarily unambiguous and concise which often makes for unattractive reading. This new, authoritative guide from the IET is written in a more accessible style to help the reader understand what the Standards require and why. It goes on to show how to implement the requirements using various worked examples and scenarios as well as dispelling common erroneous practices that have emerged out of industry folklore in the process. Importantly though it doesn't just give a précis of the requirements of the two Standards, but explains the relevant electrical principles from the basic theory, thereby creating what is effectively a text book on the subject. It will be of immense use to both students and practising Technicians as well as experienced Engineers looking for guidance on the treatment of more involved subjects such as harmonics and power quality. The book itself has already won the support of senior figures in the industry. Renowned industry expert Bill Egan, Senior Engineer for generator supplier Aggreko and man responsible for power at a range of events from Glastonbury to the Olympics referred to it as a "definitive guide to the use of BS7671 and BS7909 in temporary power systems for events." Mark White, Sales Manager for ETC Europe and Chairman of the Association of British Theatre Technicians (ABTT) and Chairman of the Theatre Safety committee elaborated further: "I carefully read the book page by page. I then re-read it and realised that in the reader's hands is a rather succinct guide to BS 7671. It takes the reader through the relevant requirements without having to search chapter to chapter. It also is a book that not only explains the first principles of electrical supplies, but also shows with simple line diagrams how they are designed and assembled." Ron Bonner, Technical Resources Manager at industry trade body PLASA said that the book "plugs a huge gap between the general safety advice of the Event Safety Guide and the detailed requirements of UK Regulation and the relevant British Standards on temporary electrical Installations. For anyone who is or will be involved in live events this is a must-have book to guide you to a safe show. "I'm grateful to the IET and in particular Mark Coles for having the foresight to see this much needed book through." said Eade. "It is a deviation from the normal IET Wiring Regulation publications both in terms of style and content and I hope that as a result it will enable those working with temporary power systems to achieve safe and effective distributions more easily." ORDER YOUR COPY HERE