Metro tunnelPROTECTING HUMAN LIFE.More safety, thanks to cables with high fire protection properties.

Cables acc. to the European Construction Products Regulation (CPR)

Since 01.07.2017 all cables and wires that are permanently installed in buildings must be labelled in accordance with the CPR.

Bayka cables that meet the BauPVO criteria can be found under the menu point “Cables according to CPR”. This area is constantly being updated and expanded by new products.

Legal Basis

Fires in buildings are the reason for many deaths in every year. Bayka is a development partner for companies with very high requirements for fire-retardant cable systems. We support the European-wide legislation. Uniform and verifiable requirements – as formulated in the Construction Products Regulation for all EU member states – make it easier for planners, installers and operators to choose the appropriate cables.

Product Overview Bayka

Bayka offers a wide range of cables in accordance with the Construction Products Regulation from different areas of cable technology.

We began with energy cables in Euroclasses B2ca and Eca and went on with further energy, telecommunication and signal cables and cables for industry and plant engineering.

Cables and wires are divided into Euroclasses – from Fca (flammable – does not meet the requirements for fire protection cables) to Aca (non-flammable). The latter class Aca does not apply in practice for cables due to the plastic insulation.

Additional characteristics (smoke development / density, acid development / corrosivity, burning droplets) supplement this classification. The information on the fire classes are binding; they are documented in the so-called declaration of performance (testing by a notified testing institute or certification body and CE label).

Fire comparison

Bayka nonfire cables B2ca vs. cable with reaction to fire class Dca

fire comparison B2ca vs. Dca after 2 minutes

fire propagation after 2 Minutes

fire comparison B2ca vs. Dca after 5 minutes

fire propagation after 5 Minutes

fire comparison B2ca vs. Dca after 9 minutes

fire propagation after 10 Minutes

Tests of halogen-free, flame-retardant cables

Standards DIN EN 50399 (VDE 0482-399)

General test methods for the behavior of cables and insulated wires in case of fire – Measurement of heat release and smoke generation during flame propagation test – Test equipment, test method and test result.


Assessment of fire behavior (optical and via an analysis of the gases produced during fire) and smoke development (optical) of cable samples attached to a cable ladder.

Test conditions

  • Cable patterns applied to a ladder are fired in a fire chamber
  • The resulting exhaust gases are analyzed with regard to their temperature and their oxygen and carbon dioxide content, which allows conclusions to be drawn about the heat development
  • A light path installed in the exhaust path allows statements to be made about the strength of the smoke development
  • The appearance of dripping / falling burning particles is observed
  • Fire test with 20.5 kW or 30.0 kW power: Duration of flame exposure. 20 minutes

Necessary to reach the Euroclasses B2ca to Dca

At Dca, the cable may burn off completely

CPR on cable sheath

Labelling on the cable

Euroclasses B2ca and Cca:

Bayka nonfire B2ca
Bayka nonfire Cca

Euroclasses Dca and Eca

Bayka CPR Dca
Bayka CPR Eca

CPR on drum label

Addition on the drum label

Declaration of Performance

The declarations of performance can be looked at via a reference number which is to be found on the delivery note, invoice or drum label.

Example: BE005-001 (special attention to capitalisation)

Protection goals of the Construction Products Regulation (CPR)

CPR protection goals

Avoid danger to life and limb

  • The main danger in a fire is the toxic smoke
    Respiratory toxins (e.g. carbon monoxide, etc.) lead to
    Unconsciousness. > The most common cause of death is gas or smoke inhalation
  • The high temperature represents another danger. It can dry out an organism very quickly.
  • Fires are responsible for many deaths, as a third of fires occur in buildings.

The average length of time from the start of the fire to the smoke gas ignition:

  • 1950: 15 minutes
  • 1985: 5 minutes
  • 2010: 3 minutes

The available time for a possible escape has been drastically reduced in recent years – due to the use of polymer-based materials and the toxic gases and higher temperatures produced during the combustion process.

Avoid endangering values

  • The fire damage consists primarily of the material assets destroyed by the fire.
  • But the consequential damage (secondary damage) should not be overlooked either. This includes smoke damage, environmental damage and breakdown damage.
  • The overall economic costs caused by fires amount to about 1% of the gross domestic product.

Recommendation of fire protection cables

A table from the ZVEI Association for Cables and Insulated Wires, in which the Euroclasses are assigned to the building classes according to the Model Building Code (MBO) (Table 2), serves as a guide for the selection of the fire protection class. For example, industry experts recommend fire protection class B2ca for buildings with very high security requirements, such as hospitals, old people’s homes and kindergartens, and for escape routes in general. For a long time now, the cable industry has been advising the general use of fire protection cables as preventative fire protection. For more than 30 years, European cable manufacturers have been developing halogen-free, flame-retardant products that not only prevent the spread of fire, but also produce less dense smoke and less corrosive and toxic fumes. In the event of a fire, there is more time for evacuation and the damage to property will in many cases be less.

EuroclassesAdditional Requirements
flame propagation
heat development
smoke production / densityacid development/
burning dropletsBuilding Inspectorate
designation (German categories)
safety needs
Acanon-flammablevery high
B1cahardly-flammablevery high
B2cas1a1d0very high

Frequently asked questions:

No, they are not subject to the CPR:

Cables acc. CPR meet high requirements for their behavior in the event of fire (reaction to fire).
The aim is to limit the spread of fire and smoke.
In addition to fire propagation, heat and smoke development, acidity (free from halogens) and dripping of burning particles (and some more) are also defined.

Cables with functional integrity describe the resilience of the entire cable system in the event of a fire (resistance to fire).
The aim is to guarantee the function of safety devices such as alarms, signposts and extinguishing systems even in the event of a fire.
These cables are checked in the system – i.e. including attachment – to see whether there is a short circuit within the required time.

Cables with functional integrity therefore have a completely different objective and are therefore explicitly excluded from the CPR (see DIN EN 50575 Section 1).

In principle, the BauPVO also applies to the laying of a few meters within buildings. It remains to be seen how this ordinance will be implemented in the relevant state building codes. We are also waiting for the instructions from the authorities.

A declaration of performance in accordance with Art. 4 EU-CPR must be issued for the products placed on the market from July 1st, 2017, regardless of whether they are in stock.

Many of our products have already been tested.
Can’t find the product you want? Contact us! The product range is constantly being expanded. Contact

Practically all cables with a PVC sheath can comply with the Euroclass Eca.

However, the manufacturers must carry out the relevant tests at a notified body. You can recognize tested goods (from July 1st at the latest) by the CE mark and the corresponding declaration of performance.

In any case, NYM must be marked, as these cables are intended for permanent use in buildings.

Do you have further questions on the subject of CPR?
We are glad to advise you in person.

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