Perimeter security specialist Zaun develops ‘world-first’ 20-minute security fence

A key customer requirement has driven one of the UK’s steel mesh perimeter fencing manufacturers to a probable world-beating performance in security tests.

A development fencing system largely based on Zaun’s popular CorruSec product has resisted serious attempts at forced entry for over 20 minutes with tools including reciprocating saws and angle grinders in a series of independent tests conducted recently by trained Building Research Establishment (BRE) assessors.

“We believe this may be a world record for a fencing system,” said Zaun’s founder and director Alastair Henman on returning from the test.

Independent testers from the BRE mounted a sustained attack on the development fence, loosely based on an SR5 ‘serious attempt at forced entry’. They used top-end battery-powered cutting tools including a 750 W reciprocating saw with specialist blades employed by Fire and Rescue teams and 18 V circular saws, jigsaws and disk grinders, axes (including an 850 mm felling axe), a hooligan bar, a 1.5 kg lump hammer and, last but not least, 500 mm-long bolt cutters.

The testers were trying to create a ‘man-sized’ 600 mm square hole in the fence line. This is larger than the 450 mm x 225 mm hole that’s part of the SR5 testing regime.

Henman added: “Even with that astonishing arsenal, the testers took more than 20 minutes to create this larger breach. The fence, which uses a clever combination of materials and geometry to maximise resistance, needed to survive for only ten minutes in order to pass the client’s test.”

Previously, CorruSec variants had already achieved official SR3 and SR4 ratings.

About the Author
Brian Sims BA (Hons) Hon FSyI, Editor, Risk UK (Pro-Activ Publications) Beginning his career in professional journalism at The Builder Group in March 1992, Brian was appointed Editor of Security Management Today in November 2000 having spent eight years in engineering journalism across two titles: Building Services Journal and Light & Lighting. In 2005, Brian received the BSIA Chairman’s Award for Promoting The Security Industry and, a year later, the Skills for Security Special Award for an Outstanding Contribution to the Security Business Sector. In 2008, Brian was The Security Institute’s nomination for the Association of Security Consultants’ highly prestigious Imbert Prize and, in 2013, was a nominated finalist for the Institute's George van Schalkwyk Award. An Honorary Fellow of The Security Institute, Brian serves as a Judge for the BSIA’s Security Personnel of the Year Awards and the Securitas Good Customer Award. Between 2008 and 2014, Brian pioneered the use of digital media across the security sector, including webinars and Audio Shows. Brian’s actively involved in 50-plus security groups on LinkedIn and hosts the popular Risk UK Twitter site. Brian is a frequent speaker on the conference circuit. He has organised and chaired conference programmes for both IFSEC International and ASIS International and has been published in the national media. Brian was appointed Editor of Risk UK at Pro-Activ Publications in July 2014 and as Editor of The Paper (Pro-Activ Publications' dedicated business newspaper for security professionals) in September 2015. Brian was appointed Editor of Risk Xtra at Pro-Activ Publications in May 2018.

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