Electrical cables for permanent installations in buildings are subject to the Construction Products Regulation (CPR) in terms of their reaction to fire. All cable manufacturers have to issue a statement concerning the reaction to fire (CPR classification) of products, as well as listing this classification as part of the CE mark. Cables are categorised in various (fire) classes. The NEN 8012 standard has been implemented in the Netherlands for this purpose. In accordance with NEN 8012, users are obliged to select the required and most suitable products for every circumstance on the basis of this information. From the 1st of July 2017 it will be obligatory for manufacturers (and importers) to supply CPR-certified cables that will be used for permanent installations of buildings and construction works.
CPR applies to cables for low and medium voltage, signal, copper data and fibreglass installed as part of the permanent electrical installations in buildings and construction works. Cables are classified on the basis of their reaction to fire performance. Cables bearing the mark fb (functiebehoud – resistance to fire) are excluded from the CPR classification for the time being. A new European standard is expected to be implemented for this category at some stage in the future.
In view of the fact that the classification and test methods have been altered, all cable product families that fall under CPR are subject to the fire tests in accordance with the new test method described in the CPR. These fire tests have to be validated by what are known as notified bodies. These bodies are designated by the national governments in question. The body designated for this purpose in the Netherlands is the Dutch Accreditation Council (RvA) in Utrecht. Designation in other countries is carried out in similar fashion. The EN 50575 standard prescribes precisely how testing/inspection is to be carried out.
For the purposes of CPR classification, the following properties of the cable are measured in case of fire: heat release, flame spread, smoke production, flaming droplets and acidity of the waste gases. Depending on the results of the tests, the cables are then classified in accordance with the new CPR Euroclasses. CPR distinguishes electrical cables in the Euroclasses Aca, B1ca, B2ca, Cca, Dca, Eca and Fca, analogous with classes A through F for construction products. The additional properties classified are smoke production (s), formation of flaming droplets (d) and acidity (a).
For implementation of CPR in the Netherlands, the NEN 8012 standard was established; the Dutch standard for the selection of the cable type with the aim to restrict the damage caused as a result of fire in and transmitted by electrical cables and fibreglass cables. The number of classifications in NEN 8012 (for the Netherlands) have been been limited to four: B2ca (s1, d1, a1), Cca (s1, d1, a1), Dca (s3, d2, a3) and Eca. The application of NEN 8012 is mandatory in selecting the correct cable type for the risk situation in question. NEN 8012 was published on 1 December 2015, and it can be ordered at www.nen.nl.
Everybody has a responsibility: manufacturer, importer, wholesaler/distributor, installer, advisor, owner/user and the government
The cable manufacturer/importer bears responsibility for performing the fire tests, as well as establishing and applying the CE mark and creating and making available the declaration of performance (DoP).
The wholesaler/distributor should ensure that all cable products subject to CPR that are sold bear the CE mark, while also ensuring that the declaration of performance is made available.
The installer/advisor bears responsibility for the correct choice of fire class and cable, in accordance with the NEN 8012 standard. Moreover, the installer should bear in mind that the choice needs to be formally justified in its administration, as one is obliged to be able to prove that the installed cable has the correct fire classification.
The owner/user of the building where the cable(s) are being placed is responsible for the determination of the risk of fire is in accordance with the 'Bouwbesluit' and the NEN 8012.
The government has the responsibility to make sure that all CPR relevant cables that are supplied by manufacterers and importers after jul 1st are CPR-compliant with corresponding CE marking and Declaration of Performance (DoP).
Go to the product overview of CPR classified cables for the Netherlands.
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