ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

The wiring regulations

Updated on September 25, 2009

The wiring regulations

Session 6

Contents

6.1    History of the IEE wiring regulations     

6.2    Plan of the 15th edition of  the IEE wiring regulations    

6.3    Sequence of design steps

6.4    Definitions7

Aim

The aim of this session is to teach you the basis of the IEE Wiring Regulations.

Specific Objectives

At the end of this session you will be able to:

1.      Briefly recall the history of the Wiring Regulations

2.      Briefly describe the plan of the 15th Edition

3.      Identify a Regulation in terms of the all number identification system and

search for it in the Regulations.

4.      State a possible sequence of steps that may be implemented in the design of an installation.

5.      Explain the meaning of some of the commonly used terms in the Wiring Regulations.

Introduction

In the previous lesson we learnt that the main legal enactment regarding the electrical installations in the Electricity Act and that under this Act, Electrical Installations must satisfy the IEE Wiring Regulations. Why has the IEE Wiring Regulations been specified? Why not some local regulation? Probably the Regulations of the London Institution were originally specified because we were under the British rule at the time of the original Ordinance in 1906. We continue to use it as our regulation as for one thing drawing up afresh a regulation of that nature for Sri Lanka is not a feasible proposition, for another thing our electricity system is based on the British pattern and finally the IEE Wiring Regulations have been drawn up after careful thought and presently in line with International Wiring Regulations.

6.1    History of the IEE wiring regulations

In 1882, the Society of Telegraph Engineers and of Electricians published their "Rules and regulations for the prevention of fire risks arising from electric lighting". These are now recognised as the first edition of the IEE Wiring Regulations. These original regulations were very brief and covered just 4 pages of print. The Society was the predecessor of the IEE. The first edition covered the topics dynamo machine, the wires, lamps and danger to person, as these were the important topics at that time for public lighting. With time the content and title of the regulations underwent various changes from edition to edition, the work being undertaken by the IEE Wiring Regulation Committee. The Wiring Regulation Committee are a group of members of the IEE who serve as individual experts together with representatives of other professional institutions, government departments, nationalised industries and electrical contractors and manufacturers associations. The 15th Edition is based on internationally agreed installation rules. The two international bodies responsible are the International Electromechanical Commission (IEC) and the European Committee for Electro technical standardization (CENELEC). These are voluntary standards bodies made up of representatives of member countries, and do not place any compulsion on the National Committees. However National Committees are expected to adopt IEC standards insofar as National Conditions permit. IEC Technical Committee 64 formulated the International publication on Electrical Installations (namely IEC Publication 364) on which the present 15th Edition of the IEE Wiring Regulations is based.

6.2    Plan of the 15th edition of IEE wiring regulations

Since the 15th Edition of the IEE Wiring Regulations is the guidance for designer of electrical installations, let us first study the layout of the Regulations.

Its chapters, sections, parts etc are not numbered in identical manner to normal textbook so that you may at first get confused. However, once you understand the plan, searching through the Regulation becomes quite easy. The Regulations is divided into six parts followed by 16 appendices.

Each part is numbered consecutively with the first of each group of digits. These parts are divided into chapters, identified by a second digit, and chapters are split into sections, to which the third digit applies. Following this is a hyphen and a Regulation number.

We will first see what the 6 parts are.

Part 1   gives the overriding requirements.

(These are the scope, object and fundamental requirements for safety.)

Part 2   gives the underlying definitions.

(These give the sense in which certain terms are used throughout the Regulations).

The subsequent parts give the body of the Regulations.  These are:

Part 3   deals with the identification of the risk or hazard.

(These identify the characteristics of the installation, or part of an installation, that will need to be taken into account in choosing and applying the requirements of the subsequent parts).

Part 4   describes the basic measures of protection against the various risks and the circumstance for which the measures are suitable.

(These are for the protection of persons, livestock, and property against the hazards that may arise from the use of electricity).

Part 5   deals with the requirements for the selection and erection of equipment.

Part 6   covers the inspection and testing that is required to be carried out to check that the installation concerned complies with the wiring Regulations.

There is a great amount of cross-referencing between the parts. Figure 2.1 shows diagrammatically the correlation between the important parts, chapters and sections of the Fifteenth Edition.

Comments

    0 of 8192 characters used
    Post Comment

    No comments yet.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)