Electricity + Control October 2015

Lightning does not have to cause damage South Africa has one of the highest lightning ground flash densities in the world. From the latest information supplied by the CSIR, the ground flash density for the Gauteng area is recorded as being 11.7 flashes per square kilometer per annum. Lightning related deaths in the RSA, Swaziland and Lesotho is about four times higher than the global average. HHK Earthing & Lightning Protection Systems offers customer solutions for structural lightning protection, earthing and surge protection, and the Company will be celebrating 40 years of service next year. HHK is proud to announce the partnership with Obo-Bettermann, Germany, which is represented locally by O-Line. HHK designs and installs both industrial and domestic structural lightning protection, specialised earthing systems, installation of surge protection to substations, main and sub-distribution boards, data/ telecom lines, computers and any electronic equipment, etc. All work is strictly in compliance with the SANS Codes of Practice and IEC Standards. HHK Earthing & Lightning Protection Systems offer the following services: • Structural lightning protection systems for both industrial and domestic projects, including all mining plants. • Provide risk assessment and protection level reports. • The performance of soil resistivity surveys so that an earth can be designed to exact electrical specification rather than by physical dimen- sions, based on the Wenner and fall of potential methods. • Resistance test measurements on installed earthing systems for structural lightning protection and electrical earthing systems. • All installations in strict accordance with SANS Code of Practice 10313 (2012) in conjunction with SANS 62305 and IEC Standards. • Supply and install high voltage lightning conductor cable – Obo isCon ® - for Protection Levels 1 – 4. • Designs of lightning protection and earthing systems for structures, substations, computer and data systems, exposed power lines, etc, including approval and stamped drawings by SANS. • Surge protection to electronic equipment and computers, etc. • Maintenance tests on lightning protection and earthing systems on all existing structures and mining plants, etc. • Issuing of Certificates of Compliance (COC’s) on all lightning protection and earthing grid systems.

Earthing & Lightning Protection Systems Johannesburg HO: P O Box 48903, Roosevelt Park, 2129 Tel: 011 476 6917 • Fax 011 476 2251 • email: info@hhk.co.za

40

Est. 1976

Branches nationwide at: Witbank, Rustenburg, Polokwane, Nelspruit, Bloemfontein, Durban, Botswana and Namibia