e-book

Electrical Installation Designs

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There are many books on electrical installation practice where the focus is on calculations and
regulations. Electrical Installation Designs has been written from a different viewpoint. Typical
projects are examined to produce designs that will fit current standards.

Most electrical contractors have an understanding of requirements related to their own regular
everyday activities, where work is carried out using rule-of-thumb methods. Repetitive designs
are used. Many installers claim that they are not designers and show concern that they are now
required to certify the adequacy of an installation design.

In practice, problems only arise when an unusual project is undertaken or there is a change in
regulations.

There is no harm in using a standardised design, rather in the way that an experienced cook uses a
published recipe for a cake. Electrical Installation Designs is a book of recipes. The installer may
select a design that corresponds as near as possible to the contract in hand and take up such
technical and regulatory advice as is required. This will reduce the need for lengthy calculations
and detailed study of BS 7671, Requirements for Electrical Installations (IET Wiring
Regulations).

Most basic electrical installations may be completed by a competent person, with appropriate
guidance to avoid serious problems and hazards.
Project chapters illustrate methods that could be used for particular types of installation ranging
from a house to an industrial workshop. The ideas are by no means exclusive. Alternative
solutions are always possible. In many instances carrying out detailed calculations and utilising
different circuitry will be more profitable. By their very nature, simplified examples of fictional
projects can only produce generalised results.

The book contains special chapters on earthing, isolation and switching and overcurrent
protection, which give a down to earth interpretation of the regulations.

Electrical installation students and non-electrical associates in the construction industry will
appreciate the user-friendly approach. Nevertheless, this is not a do-it-yourself book for the
untrained person. Warnings are therefore given where more specialised study is necessary. For
example, readers are advised not to embark on installations in hazardous areas (such as petrol
filling stations) without further training. Apart from moral implications and contractual risks,
statutory requirements are such that incompetent work may carry criminal penalties.

Although the emphasis is on tried and tested methods, some new techniques are introduced.
The most significant is the option for tree circuitry as an alternative to the ring final circuit. This
is the first book to give designers the opportunity to compare the advantages of the tree system
for both domestic and commercial installations. In recent years, consumer requirements have
changed. It is essential that the industry keeps an open mind on changes in traditional wiring
practice. Introduced in this fourth edition are new chapters on Residual Current Devices and,
for those readers who require a basic understanding of circuit design, a chapter explaining the
process for carrying out simple cable design calculations.

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Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

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No. Panggil

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Penerbit

West Sussex : John Wiley & Sons, Ltd.., 2013

Deskripsi Fisik

TK3271.A8 - 621.319’24–dc23

Bahasa

English

ISBN/ISSN

978-1-119-99284-4

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

4th ed.

Subjek

TEKNIK ELEKTRO

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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