Lightning Protection BS – Download as PDF File .pdf), Text File .txt) or read online. Information from Omega Red on British Standards relating to Lightning Protection . Including BS EN , BS , BS EN to BS EN. BS Code of practice for protection of structures against lightning.

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BS EN is applicable to risk assessment for a structure due to lightning flashes. Read our latest blog post – A brief guide to working from height View blog. However, the key principles are well established and pretty familiar to all. Switches support high performance. You may experience issues viewing this site in Internet Explorer 9, 10 or You may find similar items within these categories by selecting from the proteftion below:.

Careers with Omega Red Benefits of working with us Current vacancies. It includes many more parameters than BS which devotes 9 pages including figures, whilst BS EN contains some pages. Call to action for investment in training. It replaced BS The guidance provided is of a general nature and its application to specific lightning protection installations has to take into account the particular conditions pertaining to those installations.

In BS a system was used where each down conductor was attached to an earth electrode. Recommendations are made for special cases such as explosives stores and temporary structures, e. Most read Latest news. Buildings, Lightning protection, Lightning conductors, Climatic hazards, Climatic protection, Lightning, Electrical safety, Electric shocks, Hazard prevention in buildings, Structures, Holding devices, Joints, Construction materials, Architectural design, Design.

British Standards – Lightning Protection | Omega Red

SPDs are required under BS EN ; they are part of the internal LPS and are installed firstly to prevent dangerous lightning currents from entering a building via its services, and secondly to reduce the risk of damage to electrical and electronic equipment and critical systems from transient over-voltages.

When applying bonding, shielding and SPDs, technical excellence must be balanced with economic necessity. Guidance is also provided on the protection of electronically stored data. Expanding on an article in the May issue of Electrical Review John Sherlock of Furse pictured rightoffers an overview of the new standard and the consolation that, complex as the new standard may be, its key concepts are not alien, and, with relevant technical advice and support, it can be mastered.


Moreover, established suppliers of lightning protection solutions are now offering a wealth of quality support tools. In BSthe protection of electronic equipment is only included in an informative annex.

LPZ 1 sees limited induced current and damped magnetic field whilst LPZ 2 has a further reduction of induced current and further damped magnetic field.

This simply means a series of SPDs whose locations and LEMP handling attributes are co-ordinated in such a way as to protect the equipment in their environment by reducing the LEMP effects to a safe level. The four parts are as follows:. The new standard also includes three methods for determining the position of the air termination system: The actual risk R is then arrived at through a series of calculations, using formulae in the standard and including various weighting factors.

In BSa mesh arrangement was the commonly used layout for the air termination network. Contact Publications Site Map. BS EN provides information for the design, installation and maintenance of lightning electromagnetic impulse LEMP protection measures for electrical and electronic systems within structures, able to reduce the risk of permanent failures due to LEMP.

Guidance is provided on how to assess the risk of being struck and how to compile an index figure as an aid to deciding whether a particular structure is in need of protection.

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Successive zones are therefore characterised by significant reductions in LEMP severity, achieved through a combination of protection measures such as bonding, shielding and the use of SPDs. Debut for hybrid system for automotive prottection. Lightning and surge protection. Electrical and electronic systems within buildings.

We use cookies to make our website easier to use and to better understand your needs. Appropriate SPDs should be fitted wherever services cross from one LPZ to another Conclusion So, this brief overview of the new BS EN lightning protection standard clearly demonstrates how it is more complex and exacting than its predecessor.


The existing fabric and layout of a building may make readily apparent zones, or LPZ techniques may have to be applied to create the required zones.

Related Articles Be prepared for lightning Lightning Protection – Combined lightning and surge arresters: A lightning protection system commissioned or installed on a structure prior to this date should be maintained to BS Structural lightning protection cannot now be considered in isolation from transient overvoltage or surge protection. Customers who bought this product also bought BS Your basket is empty.

Risk management Part 3: Terms and conditions of website use Website purchasing terms Privacy policy Cookies. BS EN comprises four parts and these detail the fundamental requirements for lightning protection systems for the external and internal parts of a structure.

Physical damage to structures and life hazard Part 4: Protection of offshore oil and gas installations does not fall within the scope of this British Standard.

The protection of telecommunication lines and equipment against lightning dischargesUL In cases of difficulty, specialist advice should be sought. Find Similar Items This product falls into the following categories.

BS 6651:1999

BS EN is the latest reference lightnnig for protection against lightning. It is the British edition of the European standard to which all lightning protection systems to new structures, and new extensions to existing ones, are now designed, installed and maintained.

From that risk assessment, a structure may need both a structural Portection and a fully co-ordinated set of surge protection devices SPDs or just overvoltage protection alone.

Accept and continue Learn more about the cookies we use and how to change your settings. This British Standard provides guidance on the design of systems for the protection of structures against lightning and on the selection of materials.