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There’s so much talk in the industry right now about cabling standards and changes. We’ve put together the five key facts you need to know.

What is CPR?

CPR is the Construction Products Regulation, which harmonises the classifications of construction materials across Europe. For data and voice cabling specific rules were implemented in July 2016, requiring manufacturers to label all boxes of cables with its classification and provide a Declaration of Performance certificate to prove it’s compliance.

Why did this happen?

The classifications for data and voice cabling looks at their reaction to fire, specifically a range of levels for flame spread and heat release, smoke production, acidity and flaming droplets. A harmonised system of classification ensures everyone in the supply chain, installers, designers and end users can make an informed choice about what cabling to use.

How does this apply in the UK?

CPR applies across the board to all cables including data or voice which will be permanently installed in both existing and new buildings. The UK has set a new classification for cabling in the Amendment to the British Standard, BS6701 A1:2017. This came into force in November 2017 and is a higher threshold than previously used. By raising the standard, BS6701 A1:2017 will undoubtedly increase timeframes for people to safely evacuate in the event of a fire.

BS6701 A1:2017 – what does this mean?

BS6701 A1:2017 is the standard which represents current good practice for cabling and has specified a CCA, S1b,d2,a2 Euroclass as the minimum throughout the UK. This is a higher standard than we have previously seen. However, whilst this is not currently law, it is widely anticipated to become so when the 18th Edition of the UK Electrical Wiring Regulations become law some time in July 2018.

What does it mean for customers?

Many cabling manufacturers are expecting an uplift in costs to cover redesign and testing costs. New cabling is likely to increase in physical size due to an increase thickness in sheathing, which will have a knock-on effect to other items associated with the installation.

Download the factsheet from our website.


Structured Data Cabling

View Cabling the Right Way with MLR Networks. Read more on our website.

MLR Networks is pleased to become an Approved Installer for Connectix Cabling Systems.

Connectix is a British based manufacturer and distributor of copper cabling systems, fibre optic connectivity and racks and enclosures.

“Connectix is a great addition.  As Connectix design and test all of their components themselves as well as batch testing cabling to their own rigorous standards, we can recommend their products to our customers with confidence,” says Steve Williams, Procurement Manager at MLR Networks.  

MLR Networks is a network infrastructure specialist with over 30 years’ experience in designing, installing, testing and maintaining structured data cabling networks across the UK.

About MLR Networks

We are a network infrastructure specialist, with a range of market-leading Cisco solutions, copper and fibre optic data cabling and managed network services. We get to know your business so recommend what’s best for you. Our staff will work with your people to deliver the highest quality. Our customers come from all industries and sectors, from small single site operations to large multi-national corporations, both public and private sector. Visit our

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