Electrical Contracting News (ECN) Cable & Cable Management 2017 | Page 10

FS CABLES BE CONFIDENT ON COMPLIANCE Most cables designed for use in domestic, residential and commercial buildings are now subject to the Construction Products Regulation. Here FS Cables advises contractors on staying compliant and the role this can play in stopping the spread of fire. A s of July 2017, it became a legal requirement that cables specified for permanent use in all kinds of buildings meet the Construction Products Regulation (CPR), as covered by EN50575. This legislation helps designers and installers to consider the contribution that cables make to the spread of fire. This is particularly important as cables run between rooms and floors and above ceilings. They are often made from flammable materials and can even be a source of ignition if badly installed, damaged or faulty. Vertical flame tests help FS Cables understand how products will perform during a fire. Wire classification The regulation classifies products into one of seven classes, although realistically, only five classes will apply to cables. Classes Fca and Eca undertake a basic vertical flame test EN60332-1-2. If the cable burns too much, then it can be classified as Class Fca. For the cable to meet the requirements of Class Eca however, the same test must be conducted by an authorised test house, known as a notified body (NB). Tests by NBs carry a significant cost. To help understand how cables will perform, FS Cables has invested in a test rig to EN60332-1-2 and where appropriate, can classify to Class Fca. Classes Dca, Cca, B2ca and B1ca also apply to cables. Again, tests are conducted by a Notified Body but could cost tens of thousands of pounds to classify per group of cables. Finally, we have Class Aca, although it is unlikely that any cables will meet this, due to the materials involved. Assess fire risks It is important to note here that any CPR- rated products can be used, whatever their classification. It’s up to the designer, specifier or installer to satisfy themselves that the products chosen are appropriate for the application. When specifying 10 | August 2017 Cable & Cable Management cable, take care to assess the fire risk and potential ease of evacuation. Airports, hospitals, prisons, tunnels and high-rise buildings all offer their own challenges and should be assessed individually. So, what can contractors do to stay compliant? When you purchase cable, a Declaration of Performance (DoP) should be available, if the product has been classified. This document shows critical information such as the manufacturer’s name, product type and class met. By law, manufacturers, distributors and wholesalers of CPR-compliant cables need to keep records of products and batches sold, together with DoP documentation, for up to 10 years after the date of sale. Although the cable itself is not required to show CPR compliance, the regulation dictates that packaging must carry specific information, probably on the label. This includes the CE mark, DoP reference and unique product type. All FSC-marked cables also carry a batch number to give full traceability about when and where the cable was made, as well as the materials and production lines used to manufacture that specific batch. For further information visit: www.fscables.com/cpr