Risk of electric shock due to false readings from product
Fluke state that:
“It has been determined that certain Recalled Testers may
experience premature failure of the interconnecting cable under cyclical
bending stress. Recent experiments conducted by Fluke have shown a wide
distribution in the number of cycles to failure exhibited by the
Recalled Testers, meaning that certain Recalled Testers are subject to
failure earlier than expected, leading to a useful life for certain of
them that Fluke considers unacceptable.
Further, the cable may fail in an intermittent fashion where,
depending on the cable flex orientation, it is possible for a Recalled
Tester to pass a self check continuity test or validation on a known
voltage source, while subsequent tests may display a false negative. The
primary function of a T-Pole Tester is to detect the presence or
absence of voltage to determine whether it is safe to touch an
electrical installation and begin work.
A false negative may lead to electric shock or arc flash
from subsequent user actions as a result of the false negative
indication, which may lead to injury or even death. Because of this
risk, please IMMEDIATELY STOP using your T-Pole Tester”
What To Do
If you believe that you possess an affected product stop using it immediately and check the below webpage for further details and recall information
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)
We wanted to share this with you, our friends over at SystemTek have done a great video review of the Fluke T5-1000. This is one of the most popular meters around, used by thousands of electricians worldwide.
In an innovative first, engineers developing the HS2 super-hub at Old Oak Common in north west London are proposing plans to tap heat from the brakes and engines of high speed trains to heat water and power central heating of up to 500 new homes that could be built nearby.
The scheme would see 5 air source heat pumps draw warm air from the railway’s tunnels, where the waste heat from trains is usually extracted by traditional ventilation systems and seeps into the ground surrounding the tunnels.
Instead HS2 Ltd’s plans would see waste heat fed into a local District Heating System. The new HS2 station at Old Oak Common is set to be the UK’s best connected rail interchange, with an estimated 250,000 people passing through every day. It will help kick-start the UK’s largest regeneration project, which aims to transform the former railway and industrial area, into a new neighbourhood supporting up to 65,000 jobs and 25,500 new homes*.
HS2 innovation manager, Pablo García, said:
HS2 is so much more than a railway. By taking a long term view of how the benefits of investing in the new high speed railway can be shared, we’re investigating how to provide sustainable, low-carbon heating and hot water to up to 500 new homes.
Near Old Oak Common we’re building a crossover box. This is an underground hall that houses a points junction to enable trains to arrive and depart from any of the station’s platforms.
Our plans would see warm air pushed into the crossover box by trains, in effect acting like pistons. It then rises to be harnessed by air source heat pumps, converted into hot water and transported to homes by insulated pipes.
Based on current energy price forecasts, HS2 estimates that the investment in waste heat recycling system would pay for itself after just 4 years.
Compared to gas boilers being used in the homes, recycling heat generated by trains’ engines and brakes could reduce the carbon footprint of 500 houses by more than a fifth (22%).
Plans are at an early stage but the technology is proven. As the project progresses HS2 Ltd will work with local partners to make this aspiration a reality.
Pablo explained how Old Oak Common’s crossover box is the only place on HS2’s first section between London and the West Midlands capable of supporting waste heat recovery technology, but there may be further opportunities on the high speed network’s Leeds and Manchester routes.
Our study focused on possible Phase One opportunities because its designs are most advanced. Designs for the second phase of the railway are at an earlier stage, and we hope to look at whether waste heat recovery technology could be deployed there too.
Currently more than 1,000 people are at work on HS2 across London, clearing the way for the start of construction.
At Euston and the future HS2 terminus at Curzon Street in Birmingham demolitions are well underway alongside the project’s pioneering archaeology programme. Meanwhile clearance of the Washwood Heath site, the Birmingham location of the project’s future network control centre and rolling stock depot, is also in full swing.
In total more than 7,000 jobs are currently supported by the HS2 project, both directly and in the UK-wide supply chain.
Cyient, a global provider of engineering, manufacturing, geospatial, networks, digital, and operations management solutions to global industry leaders, will execute a project for UK Power Networks, the UK’s largest electricity distribution network operator. As part of the innovation project, called “Network Vision”, Cyient will develop an online outage planning and tracking integration portal that will help optimize distributed energy generation performance and deliver cost savings of as much as £1 million per year.
Planning network downtime is a complex process that involves balancing competing factors, making it necessary to interrupt power supplies on parts of the electricity network so engineers can undertake maintenance, upgrades and other tasks safely.
Cyient’s solution development team is working in collaboration with UK Power Networks to design and build the outage planning and tracking portal from the ground up. This will allow UK Power Networks to automate current processes and streamline how upgrades and maintenance tasks are scheduled.
Network Vision will give local energy generators – including renewable generation – visibility of planned work so they have the option to coordinate their own maintenance at the same time as the electricity network’s maintenance operations, and so minimize downtime.
Reducing downtime helps maximise the potential of renewable energy to feed into local electricity networks and could enable an extra 1080 MWh of renewable generation per year, saving 344 tonnes of CO2 emissions. That’s the equivalent effect of planting 172,000 trees (a forest 2.5 times the size of the City of London) every year.
John Renard, President of Utilities and Geospatial, and President of EMEA, Cyient said, “We are excited to be working with UK Power Networks on this innovative and revolutionary project that will enable utilities to change the way they manage their networks.”
“UK Power Networks has listened to what its stakeholders in the distributed energy community have said and responded with this project as a direct solution to their requests. It will give customers the ability to harmonize their plans with the network and ensure greater efficiency on network capacity.”
Ian Cameron, head of innovation at UK Power Networks, said: “The rapid growth of renewable energy in recent years means that our customers are changing and want us to respond to the needs they highlighted at our Distributed Generation Forums. We’re excited to improve the service we offer them and to share our learnings so that all networks can also benefit.”