• • • CABLING & CABLE MANAGEMENT • • •


No compromise for Category 3 Control fire performance cables


As buildings become ever more complex, the importance of using only approved products which meets the latest regulations for fire safety cannot be emphasised enough. Stuart Dover, general manager of AEI Cables, explains the significance of a new Code of Practice for Category 3 fire performance cables


specified under the revised version of the new Code of Practice for Category 3 fire performance cables under BS 8519: 2020. The signal and control equipment systems


A


powered by these cables – including smoke and heat extraction systems – assist fire services in firefighting and a safe evacuation in the case of life safety. Simply put, some of these systems will not


survive in a fire if a sub-standard cable is installed. We point to the detail under the BS 8519:2020


which covers how to select and install fire-resistant power and control cable systems that, in the event of a fire, will maintain their circuit integrity for life safety and fire-fighting.


“ Using inferior types of


cable for these applications is dangerous


The new Code is intended to inform designers,


contractors, fire engineers, regulators and enforcers including building control bodies, fire authorities, Health and Safety inspectors and equipment suppliers and manufacturers. The Code gives guidance and recommendations


”


on the selection and installation of fire-resistant power and control cable systems that need to maintain their circuit integrity for life safety and fire-fighting. It is primarily intended for use in buildings


which, due to their size, height, form or use, require the installation of life safety and fire- fighting systems, for example, sprinkler pumps, wet riser pumps, smoke control systems, fire- fighting and evacuation lifts or other systems as required by a fire engineering strategy. Customers, the wider fire safety industry and


professionals, have welcomed our message including the professional fire safety membership body the Institution of Fire Prevention Officers (IFPO). We feel strongly about this issue as a matter of


safety and compliance. Using inferior types of cable for these applications is dangerous and posing a major risk. We are receiving a very positive response from customers who appreciate the information on an issue of such importance. Category 3 Control fire performance cables


reduce harmful smoke, toxic gases and flame spread in the event of a real fire. Indeed, these cables also help fire and rescue services to fight a fire and evacuate people in the


18 ELECTRICAL ENGINEERING • NOVEMBER 2021 electricalengineeringmagazine.co.uk


s a responsible leader in the cabling industry, we are raising awareness of the dangers of not using approved cabling as


event of an incident so we shouldn’t underestimate their importance. The standard clearly references and clarifies the


products and levels of performance that should be used from specifiers to contractors and installers. We have received wide support for this


information and the efforts we are making in the interests of safety for all concerned from the supply chain through to those responsible and the public using buildings in which these systems operate. As the only supplier in the UK with independent


approval from LPCB for BS8519 Category 3 Control fire performance cables with a fire survival time of up to 120 minutes, AEI Cables is issuing the warning to all concerned, particularly those making decisions about fire safe products and systems. Under the detail of the revised standard, the


practical applications of Category 3 Control fire performance cables extend to evacuation alarms for the disabled in care homes, emergency voice communications systems and voice alarm systems in relevant buildings including tall buildings, office spaces, hospitals, care homes, shopping malls and stadia.


BS 8519:2020 makes reference to the


recommendations of BS 9999 and BS 9991, with regard to the design and installation of the electrical distribution systems for life safety and fire-fighting equipment. It also makes reference to three categories of


circuits required to maintain their circuit integrity under defined fire conditions for varying fire survival times of 30 minutes, 60 minutes and 120 minutes. Appropriate cable tests are identified for each


cable category derived from applicable British Standards assessing cable performance under conditions of fire as might be expected in an actual fire incident. BS 8519:2020 also aims to ensure that the level


of circuit fire integrity is not compromised by other components of the whole electrical distribution system, including cable glands, terminations, joints and cable support systems. By incorporating this guidance into the selection


of cabling for these critical systems, those using these striking new buildings can move about safe in the knowledge that they are safe.


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