Renewable energies present new challenges in the field of lightning and surge protection for direct current lines. Therefore, Aplicaciones Tecnológicas S.A. has developed a new range of surge devices for the protection of direct current (DC) systems up to 1500Vdc, according to the IEC-61643-31 standard and the REBT-BT-23 Guide.
In 2019, a total of 2,353,476,704 atmospheric electric discharges were registered in the world. This number includes lightning strikes between clouds and, above all, lightning strikes produced from cloud to ground. On August 13, 2019, the northernmost lightning known to date was detected, 52 kilometres away from the geographic north pole (89.53°N).
Telecommunication towers such as mobile phone, television or radio repeaters are high rise structures, often located in isolated places and equipped with sensitive elements susceptible to atmospheric electrical discharges. Their maintenance and repair usually requires technician call outs to remote locations, which creates an important cost and loss through downtime.
Exothermic welding, also known as aluminothermic welding, is a chemical process which creates a permanent molecular bonding of two or more conductors. As a result of this fusion, the connection is more reliable and durable than the mechanical union, and its conductivity is equal to or greater than the metals it connects.
