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A Practical Guide to the Wiring Regulations Fourth Version by Geoffrey Stokes and John Bradley


Preface to the Fourth Version This fourth version of A Practical Guide to the Wiring Regulations takes account of the necessities of BS 7671:2008 Necessities for Electrical Installations (IEE Wiring Regulations Seventeenth Version). BS 7671:2008 was issued on 1 January 2008 and got here into impact on 1 July 2008. It replaces BS 7671:2001 (IEE Wiring Regulations Sixteenth Version) as the nationwide customary for electrical set up work, and its necessities are to be complied inside all electrical set up work designed after 30 June 2008. The content material of BS 7671:2008 has undergone intensive modifications and additions in contrast with that of BS 7671:2001.

The numbering of the laws has additionally been revised to observe the sample and corresponding references of Worldwide Electrotechnical Fee (IEC) Commonplace 60364. Account has been taken in BS 7671:2008 of the technical intent of a major variety of revised and new CENELEC harmonization paperwork (HDs). Certainly, of the 28 HDs listed in the preface of BS 7671:2008, 17 are revised in contrast with the variations utilized in BS 7671:2001, as lastly amended, and seven are newly launched to BS 7671. The revised HDs have led to modifications in, amongst different issues, the numerous protecting measures laid out in Half 4 of BS 7671 and the necessities for particular installations or places.

Not the least of the modifications are these affecting the normal necessities for cover towards electrical shock, which have been restructured and are topic to new terminology. One other notable change is that it’s now permitted to set up general-purpose socket-outlets in places containing a shower or bathe, supplied these retailers are at the very least 3 m horizontally exterior the boundary of zone 1 and the circuit supplying them is supplied with further safety by an RCD having specified traits (as have to be all the circuits of the particular location).

The newly launched HDs have led to the addition of latest sections in BS 7671 relating to: marinas and comparable places; exhibitions, exhibits and stands; photo voltaic photovoltaic energy provide techniques; cell or transportable models; caravans and motor caravans (beforehand lined in Part 608 of BS 7671:2001); momentary installations for buildings, amusement units and cubicles at fairgrounds, amusement parks and circuses; and flooring and ceiling heating techniques. Whereas many modifications have been related to CENELEC HDs, a lot of modifications made have been initiated in the United Kingdom. These primarily relate to cables hid in partitions and/or partitions in installations that aren’t meant to be beneath the supervision of a talented or instructed particular person.

In lots of instances, such cables are actually required to be supplied with further safety by an RCD having specified traits, except different specified protecting provisions are employed. Of their skilled expertise the authors of this Guide have been requested, and tried to reply, quite a few questions over the years relating to the regulatory necessities and their implementation. Whereas most practitioners will recognise the place a proposed resolution is not going to, or doesn’t, meet the necessities, many discover it troublesome to attribute a exact regulation quantity to the deficiencies they consider to exist or to determine what motion to soak up fixing the drawback. This isn’t stunning since the topic {of electrical} installations is huge and advanced.

Those who consider that every one points are crystal clear (or black and white) and that there’s just one potential resolution to a design drawback are deluding themselves. As there are lots of methods of killing a cat (moreover electrocution) so too are there many design and set up choices as long as the primary constraints are met. An try has been made on this Guide to make life slightly simpler and subjects are addressed with the pertinent Regulation numbers listed the place applicable. Nevertheless, the Guide might be most helpful to those that have at the very least a working information of earlier editions of the Nationwide Commonplace. This Guide just isn’t meant to be used by the DIY fanatic except, after all, she or he occurs to be competent on this subject.

A practical guide to the wiring regulations: 17th edition IEE wiring regulations PDF

Author(s): Geoffrey Stokes, John Bradley

Publisher: Wiley, Year: 2009

ISBN: 9781405177016,1405177012

Description:
This best-selling text has been revised to reflect the requirements of the 17th Edition of the IEEWiring Regulations (BS 7671: 2008).
It includes essential information on the new rules applied to special installations or locations, such as bathrooms, swimming pool locations, camping/caravan sites, marinas, exhibition and show locations, solar photovoltaic power supply systems, and floor and ceiling heating systems, amongst others. It presents clear explanations on inspection, testing, certification and reporting, test instruments and test methods, as well as covering:

electricity, the law, standards and codes of practice;
assessment of general characteristics;
protection against electric shock, thermal effects, overcurrent, undervoltage and overvoltage;
isolation and switching;
the common rules of equipment selection;
switchgear, protective devices and other equipment;
wiring systems (including the external influences on them and cable installation methods);
protective conductors, earthing and protective bonding;
supplies for safety services;
the smaller installation, and;
specialised installations, such as outdoor lighting, installations in churches, multi-occupancy blocks of flats.
These topics are addressed with pertinent regulation numbers, and a useful appendix lists the relevant Standards. Background guidance and worked examples are provided where appropriate.

Like the earlier editions of this text, this new edition will be a useful aid for designers, installers and verifiers of electrical installations, students of the industry wishing to gain better understanding of the many facets of electrical safety, and ‘duty holders’ as defined by the Electricity at Work Regulations 1989.

Content:
Chapter 1 Plan and Terminology of BS 7671:2001 and Supporting Publication (pages 1–4):
Chapter 2 Electricity, the Law, Standards and Codes of Practice (pages 5–11):
Chapter 3 Scope, Object and Fundamental Principles (pages 12–23):
Chapter 4 Assessment of General Characteristics (pages 24–42):
Chapter 5 Protection Against Electric Shock (pages 43–87):
Chapter 6 Protection Against Thermal Effects (pages 88–98):
Chapter 7 Protection Against Overcurrent, Undervoltage and Overvoltage (pages 99–136):
Chapter 8 Isolation and Switching (pages 137–159):
Chapter 9 Equipment Selection ? Common Rules (pages 160–173):
Chapter 10 Wiring Systems (pages 174–238):
Chapter 11 Switchgear, Protective Devices and Other Equipment (pages 239–278):
Chapter 12 Protective Conductors, Earthing and Equipotential Bonding (pages 279–311):
Chapter 13 Specialised Installations (pages 312–332):
Chapter 14 Supplies for Safety Services (pages 333–338):
Chapter 15 The Smaller Installation (pages 339–367):
Chapter 16 Special Installations and Locations (pages 368–417):
Chapter 17 Inspection, Testing, Certification and Reporting (pages 418–494):

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