This does not preclude their specification and installation, however there are significant technical and contractual obstacles to be overcome in respect to the requirements of BS7671 and this will attract consultation and agreement activities between competent persons and 'duty of care' responsibilities. Nonstandard flexible ‘control’ cable (often described as YY, CY and SY) cable is NOT manufactured to a recognised standard applicable in the UK and therefore could never be 'automatically' compliant with BS7671 and BS EN 50565-1. The recommendation is to use Medium duty or heavy-duty type and be adequately mechanically protected. ![]() BS 7671 allows flexible cables to be used however, it does. Lighting system will be Dali so I would like to use 5 core for example: 3185Y 1.5mm 5 core cable rated for use up to 500 Volts. This is a very subjective position and hence represents a contractual risk.įlexible cables for use in the UK should meet the requirements of BS EN 50525 series (for example BS EN 5 or BS EN 5). This is typical domestic installation, cable will run clipped over ceiling and inside partitions, plaster, dry locations only. Flexible cables are generally acknowledged as having a lower installation life than other cable types (BS EN 50565 – 2014 refers). I believe however that Installers and designers should proceed with caution, clearly establishing that the requirements of the Wiring Regulations and contractual obligations are met, particularly in respect to installation methods and current ratings, including any appropriate allowances for grouped or bunched de-rating. They're suitable for temporary and permanent indoor and outdoor applications, including warehouses, parking lots, offices, and entertainment venues. Gary holds a Bachelor of Engineering Degree in Electrical & Electronic Engineering along with numerous years of experience across many aspects of the electrical industry.īS EN 50565-1 and BS7671 (521.9.9) state that flexible cables may be used in ‘fixed installations’. Cable ramps and cable floor covers shield cable and hose to reduce tripping hazards and prevent incidental damage due to pedestrian or vehicle traffic. It would be sensible to ensure these requirements are met. Installation and service, due to impact or other mechanical stresses, is low or has been minimized or protection Flexible cables used for fixed wiring shall be of the heavy duty type unless the risk of damage during Lighting system will be Dali so I would like to use 5 core for example:ģ185Y 1.5mm 5 core cable rated for use up to 500 VoltsīS 7671 allows flexible cables to be used however, it does stipulate that:Ī flexible cable shall be used for fixed wiring only where the relevant provisions of the RegulationsĪre met. This is typical domestic installation, cable will run clipped over ceiling and inside partitions, plaster, dry locations only. Hi, I have question about flexible cable.Ĭan it be used for the wiring of lighting installations? Mainly LED downlights. We are shaping the future trends of electrification, differentiating through technological and digital innovation while delivering an outstanding experience through operational excellence for our customers across utilities, industry, buildings, infrastructure and mobility.This Q & A is one of the thousands posted in our Technical Expertise area and answered by our Voltimum Experts. Our 50,000+ employees are dedicated to transforming how people live, connect and work by delivering safe, smart and sustainable electrification solutions. Sort of a one size fits all approach and less things to worry about stocking. It also helps is maintain out cubic inch requirements when it comes to box fill. It's easier to adjust for wall thickness too, with the right depth tile ring. ABB’s Electrification Business Area is a global leader in electrical products and solutions, operating in more than 100 countries, with over 200 manufacturing sites. A 4' square or 4 11/16 ' square j box is already going to be used all over the project. ![]() Building on more than 130 years of excellence, ABB’s ~105,000 employees are committed to driving innovations that accelerate industrial automation. The company’s solutions connect engineering know-how and software to optimize how things are manufactured, moved, powered and operated. ![]() ![]() ABB (ABBN: SIX Swiss Ex) is a technology leader in electrification and automation, enabling a more sustainable and resource-efficient future.
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