Tag Archives: Wiring Matters

Wiring Matters – Issue 81 – July 2020

Wiring Matters – Issue 81 – July 2020

Here is what you will find in the July 2020 (Issue 81) of the IET Wiring Matters magazine.

History of insulation resistance testing

There has been a lot of activity on the IET Engineering Communities forum recently regarding the background of the 1 megohm minimum value for insulation resistance. Let’s take a look at how this value was arrived at in BS 7671:2018+A1:2020.

Draft for Public Comment: IET Code of Practice for Electrical Energy Storage Systems, 2nd Edition

The IET are happy to announce that the Draft for Public Comment for IET Code of Practice for Electrical Energy Storage Systems 2nd Edition is now live.

This Code of Practice looks at Electrical Energy Storage System (EESS) applications and provides information for practitioners to safely and effectively specify, design, install, commission, operate and maintain a system. This 2nd Edition has been updated to take account of developments in the industry, and progress in standardisation.

The all-new 5th Edition of the IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment

In this article, James Eade, author of the 5th Edition, gives a brief insight into the changes to this important Code, due for publication later this year.

Amps per Pound

The idea of sizing a cable to reduce energy loss in distribution is nothing new and has been considered for many years, but with competitive tendering for work and the continual search for cost reductions (also known as ‘value engineering’), the modern design of an electrical installation tries to reduce the materials utilised to a minimum.

Asbestos guidance for electricians

Asbestos was widely used in building construction, both as a building material and for its useful insulation and fire protection properties, for many years during the 20th century.

Its use was progressively reduced between the 1970s and 1999 when all remaining forms were finally prohibited in the UK with the implementation of the Asbestos (Prohibitions) (Amendment) Regulations 1999. Asbestos has also been removed from various properties over the years for various reasons, for example, because of damaged material, or for refurbishment and demolition, but a substantial proportion of the original products still remain. These materials, if undetected, can present an ongoing risk to workers carrying out building repair and maintenance or improvement and refurbishment work. Workers at potential risk include electricians and other building trades. 

Wiring Matters – Issue 79 – March 2020

Issue 79 (March 2020) of Wiring Matters includes articles on Amendment 1 to BS 7671, the private rented sector, the Electrotechnical Assessment Specification and the return of our Mythbusters column.

Amendment number 1 to BS 7671:2018+A1

Amendment 1 of BS 7671:2018 was published at the beginning of February this year and may be implemented immediately. The amendment concerns Section 722 of BS 7671:2018 (electric vehicle charging installations). In this article, we give a brief overview of some of the main changes to Section 722.

The Electrotechnical Assessment Specification – January 2020 Edition

The Electrotechnical Assessment Specification (EAS) Committee is made up of a wide range of experts who are passionate about the electrotechnical industry. It includes representatives from the competent person scheme providers, certification and registration bodies, industry trade associations, the Ministry of Housing, Communities and Local Government, the Health and Safety Executive, Electrical Safety First and the IET (which also provides administrative support to the committee).

Mythbuster #5 – Will any old terminal block do?

In this issue, James Eade investigates terminals and connectors.

The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020

Between 17 February and 16 April 2018, the government invited comments on the Electrical Safety Standards Working Group’s decision to make a recommendation to introduce mandatory inspection and testing for private rented properties.

Getting important labelling right leaves a lasting impression

What you leave behind after an installation speaks volumes. While electrical labelling is most importantly about safety, it should also be convenient, professional, time-saving, making your life easier and leave a lasting impression with your customers.

You can read the full story’s here

Wiring Matters – Issue 77 September 2019

Lets take a look at what was in Wiring Matters – Issue 77 September 2019

Brief introduction to the deployment of medical IT systems

Patients undergoing acute care in healthcare establishments (such as hospitals) require enhanced reliability and safety of the electrical installation as well as the safe and reliable operation of the medical electrical (ME) equipment used. This is to provide security of supplies and minimize the risk of electric shock.

BS 7671:2018 Frequently Asked Questions

The IET’s technical helpline receives a wide range of frequently asked questions. Here are just a few of the common questions received.

Setting the Standard

This article explores a brief history of standardization, the current process of standardization and why it is so important for our industry today.

IET announces new amendment to BS 7671 (IET Wiring Regulations)

The IET has announced a new amendment to BS 7671:2018 (IET Wiring Regulations 18th Edition). The national Wiring Regulations committee, JPEL/64, today agreed the publication of Amendment 1, which will consist of a stand-alone update to Section 722: Electric Vehicle Charging Installations.

Solar & Storage Live

The IET are pleased to announce that they are partnering with Solar & Storage Live again this year (17th – 19th September, NEC Birmingham).

Which RCD Type?

Residual Current Devices (RCDs) are safety switching devices. They are designed to provide safety for three types of protection, this section takes a look at them.

Setting the Standard continued, A-Deviations

In the previous article (Setting the Standard- Issue 77) they briefly described the process of standardisation from international to national level. One area that they did not discuss in detail relates to a situation a national committee is faced with when an EN or HD cannot be implemented at national level.

Wiring Matters – Issue 76 – July 2019

Issue 76 of the IET Wiring Matters magazine is out now ! Here is a brief look at what is in this issue :-

Protective bonding habits

Over the years, the requirements for protective bonding in the IET Wiring Regulations have changed. This article expands on James Eade’s November 2018 Wiring Matters article, where he touched upon some items of metallic equipment, which are usually bonded even when they are not considered to be extraneous-conductive-parts.

Latest developments in International Standards for supplies for electric vehicles

In this article they look at some of the international standards for electric vehicle charging.

An Interview with Michael Peace

The IET’s newest Senior  Engineer, Michael Peace, will be familiar to Wiring Matters readers as the author of last issue’s article  ‘To Bond or not to Bond’. The IET’s Cameron Fraser sat down with him, and found out more about the newest addition to the team.

Elex Shows

As an electrician it is now more important than ever to stay up to date with the latest information and regulations within the industry.  Following the Harrogate Elex tradeshow, show sponsors the Institution of Engineering and Technology (IET) are heading to Coventry on the 19th & 20th September.

Crabtree: 100 years of safety remembered and celebrated

Crabtree began on 17th April 1919 when John Ashworth Crabtree designed a quick make and break switch.

Read this issue in full here

Wiring Matters – Issue 74 March 2019

In the March 2019 issue they welcome back James Eade’s Mythbusting column, he will brief you on the developments of IEC 60364-8-2 and investigate the importance of working safely with storage.

Here is a quick look at what you can expect to find in this issue :-

Mythbusters #3 – All electrical appliances in the workplace should be tested annually

As myths go, this is a well-established one. A cursory glance at any item of electrical equipment in the workplace is very likely to reveal a green sticker indicating that the testing interval is annual, but should it be? As the IET Code of Practice for In-service Inspection and Testing of Electrical Equipment undergoes revision in preparation for a 5th Edition, James Eade delves into the archives to look at the rationale for testing and where such established practice comes from.

Working safely with storage: It’s not business as usual

Two near misses within the past 18 months have been a timely reminder of unique safety procedures for electrical energy storage systems –
Dr Andrew Crossland CEng and EUR ING Graham Kenyon CEng

Lecturing on the 18th Edition of the IET Wiring Regulations in Cyprus

The publication of the 18th Edition of the IET Wiring Regulations has created a surge in demand for local network events to provide updates and insight into the new and amended requirements. The IET Cyprus network requested a visit from a member of the IET Technical Regulations team to give lectures on the main technical changes and new requirements of the 18th Edition of the Wiring Regulations in Nicosia and Limassol and I was happy to volunteer to do them – By: Leon Markwell

Latest developments in International Standards for prosumers low-voltage electrical installations

In October 2018, a new standard, IEC 60364-8-2, was published. In this article, we give a brief overview of some of the latest requirements at international level, which may or may not be incorporated in BS 7671 in the future – By: Geoff Cronshaw

Crabtree: 1919 to 2019 and beyond

Electrical safety has always been at the heart of everything Crabtree does. It’s a philosophy that has seen the brand through periods of depression, a world war, and market uncertainty. It enables them to consistently deliver products and devices that installers can trust, and it all started with a ‘dolly’. (Sponsored)

Read the full issue here – https://electrical.theiet.org/wiring-matters/issues/74/