What is CPR NEN 8012 fire safety regulation?

CPR is a standard for the fire classification of cables and electrical conduits in construction works. The abbreviation CPR stands for Construction Product Regulation. Roughly translated, it is a European regulation that ensures unambiguous requirements for the essential properties and performance that construction products must comply with. In Europe, the CPR is known as the EN 50575 standard. In the Netherlands, NEN 8012 has been drawn up for this purpose.
CPR fire safety regulation

What is the purpose of CPR?

The Construction Products Regulation (CPR) aims to provide reliable information on construction products, with regard to the performance of the products and to minimise damage caused by fire from electrical lines. This is achieved through the provision of a "common technical language" by which uniform assessment methods for the performance of construction products are determined. These assessment methods are drawn up in harmonised technical specifications. This uniform technical language should be applied by:
  • Manufacturers when communicating the performance of their products
  • Member state authorities when specifying requirements
  • Users (architects, engineers, constructors, etc.) when choosing which products are best suited to the construction projects they will carry out.

Which cables are covered by the CPR?

The following cables are covered by the CPR: 

  • Cables intended to be used for providing electricity and communication in buildings and other civil engineering works and are subjected to fire performance requirements.
  • Cables intended for the provision of electricity, communication, fire detection and alarm in buildings and other civil engineering works.
Cable CPR

CPR EN 50575

What performance characteristics of cables are covered by CPR?

The cable performances covered by CPR are:
  • Reaction to fire
  • Functional retention
  • Release of hazardous substances during normal use, dismantling and recycling

Which fire classes apply to the reaction of fire?

For describing the reaction to fire of cables, cables are classified in a Euro classification consisting of seven fire classes and corresponding contribution to fire.

The four classes in bold (B2ca-s1,d1,a1, Cca-s1,d1,a1, Dca-s3,d2,a3 and Eca) are relevant to the Dutch NEN 8012. Heat release and fire propagation are the most important criteria. Smoke development, falling burning material and acidity of smoke gases are additionally classified.

The EN 50575 standard