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to BS 6651
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Technical design service

A unique service in the design of structural and transient overvoltage lightning protection and earthing systems.

As an acknowledged world leader, Furse can save you time and money in the specification, design, planning and procurement of structural and transient overvoltage lightning protection and earthing systems.

Given the complexity of National and International earthing and lightning standards, confusion and misinterpretation can easily lead to budget overruns and costly extra time on site.

So to avoid unnecessary material costs and prevent lengthy project delays, speak to Furse.

After all, with over one hundred years technical knowledge combined with our work as active contributors to National and International standards, we at Furse are uniquely placed to provide sound practical advice on any aspect of lightning protection or earthing.

Computer Aided Design
Through the use of modern computer aided design and draughting software, Furse can quickly produce detailed or budgetary earth electrode and lightning protection system designs, in compliance with any given standard.

Structural lightning and transient overvoltage protection
In order for Furse to design a structural and/or transient overvoltage LPS, we need the following information:

Design standard, eg BS 6651, NFPA 780, VDE 0185, etc
A dimensioned roof plan
External elevations
Construction details, eg steelwork, reinforced concrete, roofing materials, etc
A single line diagram indicating voltage and current for each electrical system, eg power, data, telephones, fire alarms, CCTV, etc
Details of essential equipment, eg network servers, PLC controllers, etc

Power earthing systems
Design standard, eg BS 7430, BS 7354, Ansi Ieee Std 80, etc
A dimensioned site plan
Overall electrical single line diagram
Soil resistivity survey results
Earth fault current magnitude. (Due consideration should be given to the proportion of current flowing through cable sheaths or the aerial earth wires of overhead transmission lines.)
Earth fault current duration