30th November 2017 saw the publication of BS6701: Amendment 1, prior to its adoption as a supplement to the upcoming BS7671 18th Edition of the IET Electrical Wiring Regulations in July 2018. The primary objective of the standard was to improve the performance of data and telecommunications cables in fire conditions.
The new BS6701: Amendment 1-2017 standard dictates a given EuroClass of Cca, S1b, d2, a2 cable construction in the permanent installation of both copper and fibre optic cables within a building.
This is to be applied to all UK construction projects, either new build, refurbishment or the extension of
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existing buildings where the installed cables are subject to the Construction Product Regulations.
Since the ratification of the Construction Product Regulations 2017, there has been a number of options within the EuroClass standards (see table below). The choice of which to implement has been left to each individual country within CENELEC to decide which construction is appropriate to meet the fire performance requirements of the building type on an individual basis.
However, BS6701: A1-2017 has specified the Cca, S1b, d2, a2 EuroClass as the minimum standard throughout the UK.
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