South Africa’s summer season brings with it the possibility of lightning strikes. The massive voltage fluctuations caused by these can damage sensitive equipment, as well as cause data loss on computers, servers and storage devices. To combat this, DEHNcord surge arrester offers reliable protection from lightning interference in a flexible and space-saving package.
Hano Oelofse, DEHN Africa technical director, notes that Type 2 surge arrestors are devices designed to discharge the currents generated by indirect lightning strikes, which can cause induced or conducted over-voltages on the power distribution network. They are installed in the main distribution switchboard.
He explains: “The DEHNcord Type 2 surge arrester, available in single-pole, two-pole and three-pole versions, can be fitted in installation systems such as the terminal compartments of end loads, cable ducts or flush-mounted systems. The compact design allows it to be installed wherever the performance of a standard Type 3 surge protective device for terminal equipment reaches its limits. The lighting protection offered by DEHNcord helps to offset the possibility of lost productivity and costs for the repair or replacement of equipment after an unprotected lighting strike.”
It can also be used at the transition from lightning protection zone (LPZ) 0B to 1 or higher. DEHNcord meets the requirements of EN/IEC 61643-11. It has a short-circuit current withstand capability Isccr of 25 kA(rms) in case of mains-side over current protection, and a total discharge current of 20 kA (8/20 µs). Other features include:
• Single, two or three-pole surge protective device with monitoring system and disconnect.
• Visual fault indication.
• Types with disconnection of the load circuit in the event of a fault and protection of the control phase.
• Compact design also for outdoor use.
• Can be fitted in junction boxes, flush-mounted systems, cable ducts and flush-type boxes.
“Despite the compact design, the device houses a visual mechanical operating indication, as well as disconnecting the load as soon as it is tripped,” concludes Oelofse. “DEHNcord can be adapted to existing installation systems to ensure reliable protection of terminal equipment at minimum expense, takes up little space and saves installation time. When space is restricted in the cable duct, DEHNcord is the ideal solution thanks to its flexible terminals.”
The journey towards renewable energy in the Seychelles
Electrical Power & Protection
The Seychelles is committed to its ambitious goal of achieving net-zero carbon emissions by 2050. Recent technological advancements and strategic planning are steadily paving the way for a more sustainable future.
Read more...High performance power distribution
Electrical Power & Protection
Hexagon Electrical plays an important role in enhancing efficiency and safety through the supply and support of a wide range of critical equipment for hazardous industrial and mining sectors in Africa.
Read more...Navigating solar energy adoption
Electrical Power & Protection
Although South Africa’s enhanced solar tax rebate has ended, solar and energy storage solutions remain accessible and achievable. By taking a proactive and strategic approach, businesses can successfully lower their operational costs, mitigate power outages, and secure long-term energy independence.
Read more...Portable appliance tester Vepac Electronics
Electrical Power & Protection
The new appliance tester from Vepac is the ideal tool for testing the safety of electrical appliances in accordance with DGUV regulation 3 and BetrSichV. It enables the precise measurement of protective conductor or touch current using the equivalent leakage current method.
Read more...Is sustainability enough any more?
Electrical Power & Protection
With the planet’s resources stretched to the brink and no signs of improvement, it is time we look beyond sustainability and explore regenerative thinking and design.
Read more...A simple guide to understanding the importance of IP ratings
Electrical Power & Protection
When selecting electrical products for industrial, commercial or even domestic use, it is crucial to consider how well they can withstand environmental factors like dust and water. This is where ingress protection (IP) ratings come into play.
Read more...A milestone in electrical safety ABB South Africa
Electrical Power & Protection
Celebrating a milestone in electrical safety, ABB proudly marks the 100-year anniversary of its revolutionary Miniature Circuit Breaker.
Read more...The power of water
Editor's Choice Electrical Power & Protection
The Alpenglow Hy4 is the world’s first water-based hydrogen combustion engine, offering a convincing alternative to traditional battery-electric vehicles and established hydrogen fuel cell designs.
Read more...Optimising purification for green hydrogen production Parker Hannifin - Sales Company South Africa
Editor's Choice Electrical Power & Protection
Parker Hannifin delivers advanced purification and thermal management components that enhance green hydrogen production.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version