Skip to main content
13 April 2026

Do fire safety system cables need to be upgraded?

Do fire safety system cables need to be upgraded?

NF C15-100-1 and the Decree of 17 May 2024: What are the implications for fire safety system cables?

The revision of NF C15-100-1 a simplement rappelé cet arrêté sous forme de commentairesimply referenced this decree in the form of a comment. This comment should be read with caution, as it is not intended to impose new Euroclasses on fire safety system cables. However, there may still be a need for power cables in high-risk areas (BE2). In this case, it is recommended to install CR1-category cables to meet the requirement. In fact, the Decree of 17 May 2024 states in its explanatory note that: “the CR1-C1 and CR1-C2 classifications remain in effect. .

Il peut cependant câbles de catégorie CR1 to meet the requirement.

In fact, the Decree of 17 May 2024 states in its explanatory note that:

“the CR1-C1 and CR1-C2 classifications remain in effect.”

Euroclasses, CR1 cables, and fire resistance: do not confuse up

Il serait inapproprié de It would be inappropriate to confuse Euroclasses (which relate to reaction to fire) with “NF fire-resistant” cables, such as CR1 cablesCR1.

In summary:

  • If necessary (for example, in certain BE2-risk areas), the installation of CR1-category cables remains possible, as has been confirmed by the AFNOR S61 committee. The Eca and  reste possible, .n AFNOR S61

Eca et Dca-s2, d2, a2 Euroclasses The Eca and Dca-s2, d2, a2 Euroclasses mandated by the fire safety system standards remain in effect. restent en vigueur.

The AFNOR S61I Committee.

If necessary (for example, in certain BE2-rated hazardous areas), the installation of CR1-category cables remains possible, as has been confirmed by the AFNOR S61I Committee.  reste possible, .

Download
Fire safety system cables: key takeaways from the Decree 17 May 2024
  • The Decree of 17 May 2024, does not change the fire performance requirements for fire safety system cables.
  • The NF C15-100-1:2024 update merely reiterates this decree without creating any new requirements.
  • The Euroclasses applicable to fire safety system cables remain unchanged and are still in effect.
  • CR1 (fire-resistant) cables remain permitted in certain high-risk areas (BE2).
  • Fire reaction (Euroclasses) should not be confused with fire resistance (CR1 cables).
  • The position of industry professionals and the AFNOR S61 Committee confirms that there will be no changes to the fire safety system.

DEF Assistant

DEF Assistant

Let’s talk about your project

The assistant is typing…

Answers generated by artificial intelligence from the DEF website’s content: please check important information with our teams. Do not share personal information.