Earthing and lightning protection

Making sure all the equipment works in harsh industrial environments.


 

Articles in this Section

Lightning protection ‘Separation Distance’ concept

The ‘Separation Distance’ concept is the measures employed when an Isolated Air Termination System is required.
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WWW − When and Where should Which surge protection be used?

Answers to W W W for the user of surge protective devices connected to telecommunications and signalling networks.
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Standards that apply to MV switchgear rated for arc flash protection

The improved level of manufacturing techniques has led to improved, safer and more reliable switchgear systems for Air Insulated Switchgear (AIS) and Gas Insulated Switchgear (GIS).
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Design and construction of a 20 kA 10/350 µs current impulse generator

Implementation of a 20 kA, 10/350 µs generator able to perform Class 1 current impulse testing of surge protection devices.
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Lightning and surge protection for PV systems on solar plants

Measures to protect the sensitive electronic system components from failure due to lightning flashes and surges are essential in photovoltaic systems.
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Copper electrical wiring for safety

Copper is the only wiring material to be approved by all electrical codes worldwide.
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Outsmarting arc flash

Arc flash experiments carried out in test labs are nothing compared to the real world arc flash incidents that occur all too often!
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Lightning strikes!

A basic explanation of the physics of lightning is revisited with general information as to how you can avoid being injured.
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African Centre for Lightning and Electromagnetics

The African Centre for Lightning and Electromagnetics (ACLE) has been recently established to promote research and lightning safety awareness.
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Best advice on lightning protection

Lightning protection products must be professionally and competently installed.
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Minimise MV equipment failure – reduce lightning-related trips

Impulses due to lightning strikes with magnitudes of higher than 7 kA can cause splitting of wood; replacing of the wood poles causes customer outages. How can this be avoided?
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When surge arresters fail

Research into the catastrophic failures of the gapped silicone carbide (SiC) and Metal Oxide Varistor (MOV) in the Kenyan power utility, highlights the strategic role of surge arresters in power systems.
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Lightning - over 25 years

Before looking at what has changed in earthing and lightning protection we need to start with a sobering thought - what has not changed substantially?
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Lightning protection: SANS and IEC codes of practice

The South African code of practice as amended in 2010 gives a brief description of the requirements for the protection of structures and persons against lightning, however, the document does not cover all aspects.
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