Special Thanks To Ian Griffiths – Earthing System Design HV – Original ArticleHere
In this Guest Blog from Ian Griffiths (GreyMatters Principal Partner) we learn how what the difference is between grounding, earthing and bonding? That’s a question our readers and clients ask often.
Also, we’re asked quite a bit about earthing and bonding in general. So, there’s an unusually large amount of confusion around the term Earthing and Bonding. Or, for our friends in the states; you might come across the term grounding and bonding.
Therefore, in this piece, I aim to clarify the difference between – what is grounding, Earthing and what is bonding and whether there is a difference.
Breaking things down into simple terms; Earthing – grounding can mean all things to all people. Hence, it is more realistic to think of Earthing as the ‘electrode’ itself. Also, known as the Earth Termination. This reference refers to the physical hardware, such as the copper conductors, rods, etc., that sits buried directly in the geology itself.
Alternatively, Bonding on the other hand usually refers to the above-ground interconnections between the equipment or structures to be bonded.
What’s The Difference Between Earthing & Grounding?
There’s a lot of unnecessary confusion surrounding the difference between the discipline of Earthing and Grounding, which is kind of crazy, because, for the most part, the two are the same.
Earthing is the term used primarily by previous British colonies, whereas, Grounding is used more by those countries where the British had less influence.
So you might see the term Ground Potential Rise (GPR) or Earth Potential Rise (EPR) – both refer to the same thing! It’s purely a localism that has developed over time.
Difference Between Earthing & Bonding – Summary
So, to summarise Earthing and Bonding difference can be categorised as follows:
Earthing is the stuff ‘in’ the ground, and;
Bonding is the stuff ‘above’ ground.
Thus, knowing that some earthing system “stuff” is going to sit above ground level. And some will be below ground is a useful way of thinking about E&B (earthing and bonding). It’s also imperative to understand as part of an E&B design strategy that each item has a subtly different purpose.
One thing is for sure, E&B is a safety-critical aspect on all HV networks, including Rail Network electrification schemes. And as part of GreyMatters mission to help save lives while making life as easy as possible to deal with us, you’d expect us to jump through some crazy-hard hoops in the process, right?
Sentinel
As a result, one such ‘hoop’ Sentinel. I have to confess, and it’s quite a significant commitment to making initially (November 2017)to become the only Earthing Consultancy on the planet to my knowledge to offer full Sentinel sponsor status for Network Rail E&B projects. This status means PTS certified engineers get trackside in the UK easily without any faff or hassle and full RISQS compliance comes built-in to keep the regulators happy on the governance side.
Not only that but we also made some eye-watering (for us) investment in high-energy testing equipment. Furthermore, the readings we take do not suffer from the common, yet not fully recognised rail-related external influences.
Often these sources of error usually cause no-end of uncertainty in a rail environment, i.e. lots of lovely conductive structures that run in parallel for miles. Incidentally, these are quite a headache as a source of interference, when testing using the conventional equipment. Again, this attention to detail is something that makes GreyMatters entirely different. As a result, it’s also something that other sectors can benefit from – not just rail.
Anyway, hopefully, this piece clears up the confusion regarding E&B (Earthing and Bonding) you might have held previously and given a small insight into E&B testing headaches on rail projects too.
ABOUT GREYMATTERS
GreyMatters specialise in High Voltage Earthing System Design for earthing systems 1kV-765kV to meet EN 50522 and and international specifications, including 11kV, 33kV and 66kV power systems.
Protecting critical assets and life from the harmful effects of high voltages and lightning strikes globally since 1995
Focussing on high voltage electrical earthing system design, earthing measurement and surveys, lightning protection design, training and policy formulation
THORNE & DERRICK are national distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – we service UK and global businesses involved in cable installations, cable jointing, substation earthing, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
Since 1985, T&D have established an international reputation based on SERVICE | INTEGRITY | TRUST.
Contact us for 3M Electrical, ABB, Alroc, AN Wallis, CATU Electrical, Cembre, Centriforce, CMP, CSD, Elastimold, Ellis Patents, Emtelle, Euromold, Filoform , Furse, Lucy Electric & Zodion, Nexans, Pfisterer, Polypipe, Prysmian, Roxtec, Sicame, WT Henley.
A custom solution for a global problem:how Slingco integrated fixed-eye cable pulling socks onto existing cables.
Cable Pulling Socks
Thorne & Derrick distribute a complete range of Cable Pulling Products to support the safe installation of LV, MV & HV cables into underground ducts, conduits and trenches. Cable socks and support grips are available for a wide range of applications such as the installation of 33kV & 66kV array cables prior to Jointing & Terminating in windfarm towers, turbines and offshore substations.
THE PROBLEM
Slingco teamed up with one of the world’s leading cable manufacturers to devise a way to integrate a fixed eye pulling loop on to cables manufactured for the global market. During initial consultations with the client, we identified several historical lead time and reliability issues experienced using their existing method and product.
THE SOLUTION
Slingco applied its proven New Product Development process (NPD) to create a solution that provided the client a superior solution. The key to the NPD process is our ability to listen to the client’s needs, understand the challenge and react promptly to provide a viable solution at a competitive price.
The Slingco team of cable management experts identified ways to create a more reliable and less expensive method to install their cables. With Slingco’s manufacturing and supply chain expertise, we were able to shorten the customer’s lead times and stock out issues.
Fixed eye crimp-on cable socks are easy to install, minimise the length of cable being impacted by the pulling device and are a secure way to pull and manage the cable during the manufacturing and spooling process.
Crimping the pulling eye onto the cable is quick and easy using a Slingco hydraulic crimper, which securely holds the cable during all pulling and cable management processes.
Slingco were able to demonstrate an effective design, manufacture and standardise the product used today, and able to provide an impeccable service via a robust manufacturing supply chain. Our ongoing quality assurance processes ensure the continuous reliability of the product delivered.
Main Improvements:
Material specification analysed to reduce fatigue / cracking.
Colour coding for easy identification. Not just pulling eyes but tooling as well to ensure the correct tool is used.
New tooling and standardised swage diameters introduced to prevent over crimping. Reduce the number of sharp burrs.
Improved marking of product for easy-to-read identification purposes and easy positioning of the product for swaging.
Box weights and quantity batch size introduced for ease of lifting and movement.
Acceptable minimum order quantities and reorder levels introduced.
Ongoing testing support for new cable designs introduced by client to check compatibility of Slingco fittings.
CABLE SOCKS & PULLING PRODUCTS LV MV HV
Complete range of LV, MV and HV cable pulling products for installation and enabling cable jointing in trench or ducts including LV, 11kV/33kV medium voltage (MV), 66kV/132kV high voltage (HV) and EHV transmission and distribution cables up to 400kV.
Thorne & Derrick distribute the most extensive range of Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.
We service UK and international clients working on underground cables, overhead lines, substations and electrical construction at 11kV and up to and EHV transmission and distribution voltages.
Guide To Safe Use of Classes 00, 0, 1, 2, 3 and 4 Electrical Gloves
Improper use of electrical rubber insulating gloves can be a matter of life and death.
Get them retested regularly to make sure that they are still electrically safe.
Treat your rubber insulating gloves well and they can last a long time. The testing of insulating gloves will help to prevent failure which could lead to electrical shock if the surface integrity has been comprised by “wear and tear”.
As Main UK Stockists for the CATU Electrical range of insulating gloves Thorne & Derrick regularly are requested to provide care and maintenance advice to ensure gloves provide adequate and ongoing electrical safety and protection to the wearer.
Any Brand of Insulating Glove can be tested. Here are some examples:
CATU
Regeltex
Honeywell Salisbury
Polyco
Clydesdale (Novax)
Electrical Insulation Tests For Gloves
Class Of Gloves
Maximum Voltage Use AC DC
Test Voltage AC Proof
Test Voltage AC Withstand
00
500V ac | 750V dc
2.5kV
5kV
0
1000V ac | 1500V dc
5kV
10kV
1
7500V ac | 11250V dc
10kV
20kV
2
17000V ac | 25500V dc
20kV
30kV
3
26500V ac | 39750V dc
30kV
40kV
4
36000V ac | 54000V dc
40kV
50kV
Special Properties Of Gloves
Special Property Of Insulating Glove
Category Marking Code
Acid Resistance
A
Oil Resistance
H
Ozone Resistance
Z
Acid, Oil & Ozone Resistance
R
Extreme Low Temperature
C
1 – Expiration Date
Insulating rubber gloves have no expiry date and may be used as long as they comply with the periodic inspection.
2 – Periodic Inspection
Class 00 and Class 0 Gloves
Verification regarding air leaks and a visual inspection
However, a routine dielectric test may be performed at the owner’s request
Class 1, 2 , 3 and 4 Gloves
Verification regarding air leaks and and a visual inspection
Verification via a dielectric test to verify electric properties
Every 6 months to be re-tested, since they were first worn
Every 12 months, even those held in storage and not worn to be re-tested
Testing Insulating Gloves | Glove Markings
3 – Field inspection & Stock
Do not confuse the periodic inspection with the inspection before each use. Together with the periodic inspection, it is strongly recommended that a visual inspection of the gloves is carried out before each use.
It is important to store the gloves in their UV-Resistant polythene bag and keep the gloves away from light, heat, and ozone. Ideally, the user should use our pneumatic tester to inflate the gloves for a good visual inspection and keep the gloves in our polypropylene store box for both transportation and storage.
4 – Special Properties
Gloves that pass the special properties (acid, oïl, ozone, very low temperature) are not resistant to chemicals. The test is to guarantee electrical protection in case of accidental contacts. After completing the electrical work, it is recommended to replace the contaminated gloves.
A periodic dielectric inspection service
On receipt of your gloves to our premises, the gloves and sleeves are documented and then washed and dried.
They are then visually inspected by our technicians, using inflation equipment.
The next stage is electrical testing. Test equipment is used and tests are carried out according to the correct voltage for the class of glove. After the electrical testing has been completed they are again inflated and visually inspected. The gloves are then stamped and packed for return.
Documentation accompanies the gloves and sleeves through all stages of testing and any failures are recorded. Any glove that fails will be destroyed. If the customer wishes, failures can be replaced with new items from our stocks.
Arc Flash PPE & Electrical Safety
Main UK Stockists & Distributors of Electrical Safety Products
Thorne & Derrick provide Electrical Safety Equipment to substation engineers, cable jointers, overhead linesmen and utility workers with PPE and electrical safety equipment including insulating gloves, voltage detectors, insulating mattingand portable earthing to ensure worker safety when carrying out maintenance on LV-HV switchgear, substations, cables and electrical equipment.
Thorne & Derrick | Distributed from Stock | Approved Supplier
CATU CZ kits are wall mounted substation life saving kitsthat can be used in the event of an electrical incident or accident in MV-HV substations up to 36kV – suitable for electrical intervention in substations up to 36kV and for assisting victims in the event of an electrical hazard or electrocution. Portable life saving kit options are also available for field service vans and engineers.
The installation of one of these Life Saving Rescue Kits can mean the difference between life and death for an electrocution victim and can save lives in high voltage substations. CATU substation life savings kits are in widespread use in the electrical industry – they provide vital protection and reduce the amount of fatalities and serious injuries caused by electrical incidents in and around substations and whilst working on medium voltage cables and electrical equipment installations.
The CZ range of Electrical Safety & Life Saving Intervention Kits are used throughout the wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.
CATU CZ kits
for Medium and High Voltage Substations
The CZ-54 is the most specified substation wall mounted life saving kit – the kit is suitable for up to 24kV and are widely installed during the construction and commissioning of 11kV high voltage substations. Other models are available from Thorne & Derrick and CATU Electrical, including the CATU CZ-55 for high voltage substations up to 36kV, and portable kits such as the CATU CZ-53.
Substation Kit Contents
Wall mounted board with a clear door and security straps to fix the below CATU Electrical components:
1 pair of insulating gloves 26,5kV, CG-3-10-NR, class 3 size 10 (IEC 60903:2014).
1 telescopic stick 45 kV with rescue hook
1 voltage detector (3 to 40kV) with flexible contact antenna fixed on the hook ref. M952170
1 pair of insulating boots to protect against the electrical risks of voltage when stepping on the ground MV-135/45 (size 45) or over boots class 3 MV-139-L (depending on ref)
1 cable cutter with insulated handles 25kV
Safety instructions on the plastic board, 1 instruction manual, 1 fixing kit with :
2 braces
6 TR 6×35 screws
6 pins
6 washers
2 plastic clips
How To Save Lives In High Voltage Substations 11kV 33kV | CATU CZ54
Medium & High Voltage Substation Life Saving Kits | CATU CZ53, CZ54 & CZ55
The components are within the plastic board which :
Protects the safety equipment during transportation
The substation kit is delivered with all the components already inside the board
When the substation kit is fixed on the wall, the voltage detector shall be fixed on the stick, and the stick shall be unfolded and placed in the board
Dimensions: 0,84 m x 0,75 m x 0,27 m
Weight with components: 21 kg
CATU CZ Kit For HV Substations
Installing the Substation Kit
To protect this kit during transport, all components are placed inside the cabinet. To facilitate wall mounting, we recommend emptying it of its component parts.
Mount the angle brackets on the wall taking care to match the precise distance of 600 mm between brackets (using two screws per bracket).
Be sure to mount the cabinet 1510 mm from the floor.
Place the cabinet onto the angle brackets and clip the two pressure mounted plastic clips into place.
With the cabinet still on the wall, drill the wall through the two holes located in the base of the cabinet.
Press the wall plugs in and screw in the two screws after inserting the washers.
Stow the component parts in the cabinet using the Velcro strips for boots, cable cutter and stool.
Extend the pole and mount the detector (so that this assembly is immediately operational).
Clip the pole into the location provided.
Check that the detector operates properly (by pressing the red button).
The Risk & Electrical Switchgear Guide | Failure of electrical switchgear can cause death, serious injury and major damage. If you own or operate this type of equipment in industrial or commercial organisations, this book is mainly aimed at you. It should help you to select, use and maintain switchgear safely and reduce the risk of accidents. This guidance is aimed at owners and operators of electrical switchgear in industrial and commercial organisations. It may also be useful to others. It will help managers, engineers and others to understand their responsibilities and duties in the selection, use, operation and maintenance of high-voltage switchgear. Here you can download theHSE Guide to Keeping Electrical Switchgear Safe.
Warning
To ensure optimum protection, all insulating components must be used (stool, gloves, pole).
The detector only works with AC power (no detection is possible when using DC installations).
Before use, always check equipment integrity (especially the gloves).
Before and after checking to ensure that no voltage is present, always check correct installation operation.
This check must be performed in contact with bare conductive parts.
Never cut a number of phases at the same time using the cable cutters (this causes a short circuit hazard at blade level).
Selecting Your Substation Electrical Safety Kits
➡ The following table provides an overview of the operating voltages, ordering references and language versions available for the CATU Electrical range of MV HV Substation Kits:
Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage power systems:
VOLTS is our first monthly round-up of industry news, projects, videos, technical tips, training information, promotions, webinars and career opportunities from Thorne & Derrick. Take a moment to Follow Us on LinkedIn to receive future VOLTS.
In The News
Discount retailer B&M have been hit with a £1million fine after a horrific industrial accident
A horrific industrial accident at B&M’s headquarters saw an electrician’s body swell to four times its normal size.
Workman Shahenur Rahman was set ablaze during the industrial accident at the firm’s base and distribution centre at Estuary Commerce Park in Speke and remained in a coma for two weeks after.
Liverpool Crown Court heard that B&M was advised by Leep Utilities in June 2018 that maintenance work was required on the high voltage switchgear at its HQ. The retailer hired two generators from supplier Aggreko in order to maintain the supply and “allow some core functions” to remain in operation while the power was being cut. Aggreko suggested Bolton-based company Dakerbe contracted to connect these generators.
Shahenur Rahman was connecting a generator to B&M’s mains voltage distribution board. The board was in close proximity to the high voltage equipment which was energised while Rahman was wiring up the generator. It is believed that the spanner which he was holding came into contact with a live high voltage busbar, causing an instant blast and fireball. The 35 year old sustained serious burns to his arms, hands, thighs, legs and face. Rahman was rushed to hospital where doctors later placed him in an induced coma for 2 weeks. He then had to undergo a serious of skin grafts and was unable to work for five months.
The HSE found a “series of failings” by bothB&M and Daker in the planning and execution of the job.
“Unfortunately, they failed at the very first hurdle by putting a man in charge of overseeing the work who, at his own admission, was wholly unqualified to fulfil such a role. It was a role he simply wasn’t capable of fulfilling, and one that he should never have been asked to undertake by his employer.”
B&M Retail Limited admitted two health and safety breaches, while Daker Limited pleaded guilty to one. Neither defendant has previous convictions for such matters.
The retailer was fined £1m and told to pay £4,978.30 in court costs plus a £170 victim surcharge. Daker would have faced a £12,000 fine, but this was reduced to a “nominal” amount of £100 due to its “dire financial straits”.
Ensuring you have the right systems in place when working with electricity is critical to the wellbeing of your employees and your Company. Electricity can be extremely dangerous and hazards such as an arc flashand electric shock could result in death.
This month Mark Lewis (Rail & Power Sales Manager) celebrated his 35th Workiversary with Cembre, one of the largest European manufacturers of electrical compression connectors and related installation cable cutting and crimping tooling. Mark is one of the original employees of Cembre UK and continues to provide excellent support to customers requiring reliable, durable and safe electrical connections for Low & High Voltage power cables and systems.
Pictured : Stuart Swalwell (Managing Director UK & RoI at Cembre) recognising the continued commitment and dedication provided by Mark at their UK HQ in the West Midlands, UK.
In November 2020, Cembre introduced a new restyled logo – their commitment to product quality, company efficiency, stock availability and customer service is constant. “It is a historic step for the company,” commented Giovanni Rosani (CEO of Cembre). “Because Cembre has been represented by the same logo throughout its history today the new brand, revised in a discreet but tangible way, inherits an important rule and will have to identify Cembre for the next 50 years,” added Giovanni.
Founded in December 1986, Cembre Ltd has seen decades of continuous UK business growth and is today a key manufacturing unit within the Cembre group.
pROJECTS & NEWS
smart solar energy solutions for a net-zero future
Solar panels are the leading source of renewable energy for our homes and businesses, with more and more buildings opting to have them installed. Solar panels have several benefits for the environment due to their green energy and lack of emissions when running.
Solar PV (Photovoltaic) generation increased a record 156 TWh (23%) in 2020 to reach 821 TWh. It demonstrated the second-largest absolute generation growth of all renewable technologies in 2020, slightly behind wind and ahead of hydropower.
Thorne & Derrick have been working with a top-tier worldwide project developer involved in PV power generation, operation and maintenance services. The developer is committed to using smart solar energy solutions for a net-zero future.
The client had a requirement for arc flash protection to protect their staff that are involved in working with solar panel battery storage. Batteries used alongside solar PV allows surplus electricity generated by solar panels to be stored for later use rather than exported to the National Grid.
Working around batteries can expose an employee to both electrical shock and arc flash hazards. Battery charging can sometimes generate flammable gases, so it is important for employees to avoid anything that could cause open flames or sparks. Employers must consider exposure to these hazards when developing safe work practices and selecting personal protective equipment (PPE).
We supplied the client with a number of SFX251 arc flash switching suits from stock, to provide personal protection to workers undertaking maintenance and repair operations.
The STRATA SFX251 Arc Flash Clothing Kit (25 cal/cm²) is a comfortable, lightweight arc flash switching suit providing total protection against arc flash risks for wearers working on or near live electricity.
1-piece Hi-Viz Overall | With reflex striping, plenty of pockets, concealed zip fastening and zip up to collar for safety
1-piece Arc Flash Helmet | Retractable Truecolour® visor real view vision (no discoloration)
1-piece Arc Goatskin Leather Gauntlets
1-piece Container of disposable ear plugs SNR37
1-piece Storage Bag|with pockets and shoulder strap for easy transport and storage
T&D Deliver Their Largest High Voltage Power Cable Cleat Order
Thorne & Derrick, a Specialist Distributor for Ellis Patents, delivered their largest contract to date to supply cable cleats to provide safety and reliability to high voltage power cable circuits in the event of a short circuit.
This current project award is testament to our ability to utilise the in-house expertise of Ellis Patents to design project specific, bespoke solutions for customers on tight delivery schedules and builds upon recent project successes in the renewable, rail, data-centre and utility substation sectors.
“Emperor was preferred to competitors due to the products established track record and its evidenced compliance to the rigorous IEC 61914: 2015 Standard. The ability to demonstrate product performance in similar harsh operating environments with past project references was critical. Ellis Patents have an international reputation to commit and meet customer delivery requirements – trust in the customer-supplier relationship was central to securing the business. We are now working with Ellis on several custom engineered cable support solutions – the commercial and technical support by Ellis Patents to Thorne & Derrick was outstanding and instrumental in securing this prestigious project order for both our companies,” comments Chris Dodds (Sales & Marketing Manager at Thorne & Derrick).
Special thanks to Kelly Brown (Sales Director) and Noman Shabir (National Sales Manager) from Ellis Patents for once again exemplifying the power of mutual supportive Manufacturer-Distributor relationships. This project award demonstrates our ability to combine to secure global projects demanding the highest levels of technical qualification with exacting product customisation and delivered on-time at the most competitive prices.
ES Single Range | 32-150mm diameters with short-circuit test levels to 235kA at 225mm cleat spacings
ER Trefoil Range | 19-128mm diameters with short-circuit test levels to 195kA at 300mm cleat spacings
World-leading Manufacturers of Cable Cleats for LV MV HV Cables
Sensored Cable Accessories for Medium Voltage Power Networks
3M Sensored Cable Accessories (SCA) provide a retrofittable, compact and economical way for Distribution System Operators (DSOs) to gain visibility and data from their distribution grid with voltage and current measurements.
As the need and importance of measurement and data in the underground grid rises, 3M SCA provides a simple path to high accuracy solutions for assessing and improving fault detection, power flow and power quality. The advent of new regulations and integration of renewables into the medium voltage network, make the need for high accuracy measurements critical for assessing the health of your electrical grid and better managing the future of the network’s grid modernisation.
Pictured: 3M Sensored Medium Voltage Accessories easily retrofit inside cable compartments, air insulated switches, gas insulated switches or on transformers inside substations. When you upgrade existing medium voltage substation with 3M product, you gain high accurate sensing and overall insight into multiple nodes without the need to replace.
Thorne & Derrick, the UK Preferred Distributor for P&B Weir Electrical Ltd (PBwel), are now stocking their range of Rail Earthing Equipment with PADS Approval for use on Network Rail high voltage electrification projects. This significant and strategic stock holding is the culmination of discussions and planning to support framework contractors and construction alliances during and beyond the current CP6 plan.
Thorne & Derrick will be able to provide next day delivery from stock at competitive prices for the PBwel range of Operating Poles & Temporary Earthing Kits; the complete range consists of DEP Short Earth Leads, J117 Rail Clamps, Long Blue Interlocked Earths, Short-Circuiting Straps, Rail Bonds, Rail Jumper Bonds, Rail Poles, Voltage Detectors, Rail Socket and Heads, Arboriculture Equipment and Signal Sighting Targets.
Pictured | Chris Thompson (CSD Sealing Systems Onshore Installation Manager) and his team have been working on a project in Lancashire this month. CSD have fitted some bespoke stainless steel frames over existing ductwork before providing a water and gastight seal using the NOFIRNO duct seal system. Much of the work was completed within an area designated as a confined space. All of our installation team are highly skilled installers but are also trained to work safely in restricted access or confined space areas.
Pictured |The naval installation team for CSD Sealing Systems have been working across multiple projects. A cable transit upgraded using the NOFIRNO cable transit system and multiple switchboard cable glands also sealed using the NOFIRNO system. The system provides a fully certified A60 fire rated penetration seal and will also ensure protection against water ingress and damage to any critical equipment.
Download your Guide to MV Distribution Cable Standards & Power Distribution Network Requirements
This guide aims to inform the industry – designers, specifiers, contractors, manufacturers, suppliers, operators, and others of the range of standards and product approval process for MV cables (up to 33kV). It also highlights some of the specific enhanced performance requirements for MV cables that can help mitigate climate change impacts.
BASEC is the expert in cable certification, testing and the awarding of triple standard accredited management systems approvals: ISO 9001 for quality, ISO 14001 for the environment and ISO 45001 for health & safety. Established in 1971, BASEC works in partnership with cable manufacturers worldwide and their end-users as the preferred testing and certification provider.
Featured Jointer
Swalek provide a comprehensive range of Solar & Wind Farm Maintenance Services including high voltage power cable installation, jointing, termination and testing.
Swalek’s wind farm maintenance division recently supported a customer with their off-supply issue at a wind farm in Scotland, near Falkirk. An engineer attended site to assess the problem and found that the site had lost communications. The engineer checked the Scottish Power Network and didn’t find any problems. It was assumed that there was a loss of supply.
The engineer then carried out a detailed investigation and it was discovered that Transformer 1 had a failure. An 11kV insulation resistance test was carried out which proved a fault on the HV winding. Swalek High Voltage Services are now in the process of sourcing and installing a new 800kVA transformer to replace the faulty transformer and ensure the wind farm continues to generate.
Swalek carry out wind farm high voltage design, build, operation & maintenance services throughout the UK and across Europe.
Sector Spotlight | Data Centres
Thorne & Derrick supply LV HV Cable Accessories, Installation & Electrical Equipment to service providers working on hyper-scale data centres including Equinix, Virtus, K2, Microsoft, CyrusOne and Interxion. We have recently supplied Warsaw RDCC (Rapid Deployment Data Centres) with sealing systems for the protection of cable ducts against water ingress/gas migration and cable termination products for the connection of 33kV power cables switchgear and transformers – the project is part of a $1 billiondigital transformation plan for Poland announced by Microsoft.
We can assist with the Competitive Supply & Technical Specification of joints, terminations and connectors for the energisation of all types of air or gas insulated electrical equipment from stock up to 33kV.
After sponsoring the event in the South, Throne & Derrick are delighted to be exhibiting at Energyx2022 North in September.
DATE & TIME – Wed, 21 September 2022, 09:00 – 16:00 BST
LOCATION –Chester Racecourse, New Crane Street, Chester, CH1 2LY
Following on from ENERGYx2020/21, COP26 and the UK government’s drive for us all to reduce the use of fossil fuels ENERGYx2022 will be a great place to benchmark our progress. The challenges reaching Net Zero creates for transmitting and distributing electricity whilst maintaining safe and reliable networks, though not insurmountable requires a lot of joined up and collaborative thinking.
One of this year’s themes is ‘Best Practice’. All networks are facing similar challenges and the opportunity to learn about the use of products or services that another Network Operator is successfully deploying is not to be missed. The world class suppliers available in one place to the electricity industry is unrivalled for a free to attend event. Come along and meet those inventing, producing, and supplying the best practice solutions.
Please note your ticket (s) will be scanned on entry to the event, so please either print your ticket in advance or have your ticket ready to scan on your mobile phone.
Jobs
EDS HV Contractor Vacancies
EDS HV Group are looking for a 33KV Pfisterer jointer to start immediately.
This will be for 3 days work at a location within the UK.
To apply, follow this link and click on the button to upload and send your CV
EDS is part of James Fisher Renewables, who provides comprehensive and trusted offshore renewable solutions dedicated to the technical and operational aspects of construction preparation, installation, and specialist operation and maintenance.
VOLTS! By,
Thorne & Derrick distribute the most extensive range of Low & High Voltage Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors – this includes Joints, Terminations & Connectors to enable the installation of low, medium and high voltage power cables into underground trench or duct.
