By Geoffrey Stokes
This e-book offers a radical, sensible consultant to the Wiring rules BS 7671 : 2001. It positive aspects in particular:
- worked layout examples
- extensive tabular fabric and checklists
- numerous illustrations
- particular recognition to the topics of inspection, checking out, verification, certification and reporting
- NICEIC specimen certificate and different forms
- guidance on specialized installations
The 3rd version has been up to date to take account of the 2001 amendments to the Wiring laws, together with revisions on:
- protection opposed to overcurrent
- isolation and switching
- zoning requisites for destinations containing a tub or shower
- construction web site installations
- highway energy offers and road furnishings and kit
Read Online or Download A Practical Guide to the Wiring Regulations PDF
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Additional resources for A Practical Guide to the Wiring Regulations
2 19 Electric shock ± direct contact Regulation 130±02±01, dealing with protection against direct contact under normal conditions, refers in a new way to two methods by which such protection can be accomplished: . Preventing a current from passing through the body of any person or any livestock, or . Limiting the current which can pass though a body to a value lower than the shock current. 3 Electric shock ± indirect contact In dealing with protection against indirect contact under single fault conditions, Regulation 130±02±02 permits the two methods given above relating to protection against direct contact to be employed, as well as: .
Where alternative measures are used, the designer would need to be able to argue that these provide for no less a degree of safety. The whole of Part 1 of BS 7671: 2001 has been fully revised and expanded, and its title has been modified. 1. 1: Re-organisation of Chapter 11 Regulations BS 7671: 1992 (as amended) BS 7671: 2001 110±01 General 110±01 General (includes content of Regulation (110±03±01) 110±02 Exclusions from scope 110±02 Exclusions from scope 110±03 Voltage ranges 110±03 Equipment 110±04 Equipment 110±04 Relationship with statutory regulations 110±05 Installations in premises subject to licensing The first part of Regulation 110±01±01 gives a fairly comprehensive, but not exhaustive, list of electrical installations to which the Regulations apply.
7 Protection against overvoltage Regulation 130±06±01 requires that persons and livestock are protected against injury, and that property is protected against any harmful effects, resulting from: . a fault between live parts of circuits supplied at different voltages, and overvoltages likely to arise from switching and atmospheric phenomena. 8 Additions and alterations to an installation Regulation 130±07±01 requires that for an alteration or addition to an existing installation the rating and condition of the existing equipment which is utilised for the altered or addition installation must be confirmed as being satisfactory, including the supply.