All-in-one lightning and surge protection solution

March 2004 Electrical Power & Protection Commercial (Industry)

The DEHNventil TT SABS approved, all-in-one lightning current and surge arrester from Surge Technology is easily installed in different types of power supply systems, TNS, TN-C-S and TT systems, providing the same level of protection where previously up to 20 separate devices had to be installed and interconnected.

Compact in design, the unit requires only 30% of the space of similar devices and no de-coupling inductance coils are necessary between the arresters. Even in the event of a direct lightning strike with an intensity of 200 kA (10/350 µs) to a building with external lightning protection, the system is protected in terms of SABS IEC 1024-1 requirements.

The dual input terminals allow the voltage to be greatly reduced by as much as 2000 V, for load currents less or equal to 125 A. The additional bus bar terminal at the output increases the combination possibilities with other DIN rail mounted devices.

By using the encapsulated spark gap technology, safety distances to adjacent components within the distribution cabinet are unnecessary. Even at fault currents up to 25 kA r.m.s., a 35 A breaker will not trip when it extinguishes the follow-on current. Visual fault indication is provided, or if required, the optional DEHNsignal DV remote monitoring module informs the user on the state of the protection, even when not physically on site. DEHNventil TT is compatible with other surge arresters in the DEHN (RED/LINE) family.

For more information contact Paul van As, Surge Technology, 011 792 1303, [email protected], www.surgetek.co.za

Further reading:

Overcoming the bottling industry’s fragmented visibility
Schneider Electric South Africa IT in Manufacturing Electrical Power & Protection
Beverage bottling facilities are among manufacturing’s most energy-intensive environments, yet many still operate without granular insight into where that energy goes. Rezolia Muller-Potluri of Schneider Electric explains how tiered metering architecture and advanced

Read more...

---

Schneider Electric introduces next-generation BlokSeT switchboard
Schneider Electric South Africa Electrical Power & Protection
Schneider Electric has launched its next-generation BlokSeT low-voltage switchboard in West Africa, offering high reliability, predictive maintenance capability and digital integration for critical infrastructure and industrial applications.

Read more...

---

Powering South Africa’s renewable energy expansion
Electrical Power & Protection
ACTOM Distribution Transformers, the sole NECRT contract holder for Eskom, is powering South Africa’s renewable energy expansion through robust neutral earthing transformer solutions deployed across solar and wind projects in southern Africa.

Read more...

---

You can’t digitise a blackout
Schneider Electric South Africa Electrical Power & Protection
Across East Africa, smart meters and AI promise cleaner, more reliable power, but digital tools cannot optimise a grid too weak to carry the load. Schneider Electric’s Symphrose Ochieng sets out why operators should strengthen physical infrastructure first, then add digital capability in phases.

Read more...

---

Battery energy storage is key to powering South Africa’s manufacturing sector
Electrical Power & Protection
South Africa’s shift to renewables is creating a significant opportunity in battery energy storage, but local manufacturers face an uphill battle against cheap imports and stop-start demand. Richard van Moltke of ACTOM Static Power examines what it will take to build a sustainable local battery storage industry.

Read more...

---

Decarbonisation is reshaping mining strategy in Africa
Schneider Electric South Africa IT in Manufacturing Electrical Power & Protection
Mining companies across Africa are embedding decarbonisation into operational strategy, driven by investor, regulatory and customer pressure to reduce emissions while improving resilience.

Read more...

---

How to tell whether your mini-substation is new or refurbished
Electrical Power & Protection
Cosmetically refurbished mini-substations are being misrepresented as new equipment and sold back into the market, posing serious reliability and safety risks for mining, industrial and commercial operations. Trafo Power Solutions explains what to look for and what questions to ask before purchasing.

Read more...

---

Optimising energy reliability for African manufacturing
Electrical Power & Protection IT in Manufacturing
Unreliable power can cost African manufacturers as much as 31% in sales. Behind-the-meter power offers manufacturers in sub-Saharan Africa control, visibility and resilience in their energy provisioning.

Read more...

---

Electrical solutions for FMCG manufacturing giant
Electrical Power & Protection
An electrical upgrade at a leading fast-moving consumer goods facility demonstrates how ACTOM Kenya turned a fragile, reactive power infrastructure into a resilient, data-driven backbone for production. The project is also a case study in bridging legacy equipment with modern automation without disrupting operations.

Read more...

---

Yokogawa digital plant to accelerate green hydrogen revolution
Yokogawa South Africa Editor's Choice Electrical Power & Protection IT in Manufacturing
Yokogawa explains how a digital plant approach and autonomous operations can integrate the full green hydrogen value chain, from renewable power generation to end-use applications, and why digitalisation and system integration are central to making green hydrogen viable in South Africa.

Read more...

---