Fire reaction classification
The cables are classified into 7 Fire Reaction classes identified by the letters from F to A and by the subscript “ca” (cable) according to their increasing performance. Each class has minimum thresholds for heat release and flame spread. In addition to this main classification, the European authorities have also regulated the use of the following additional parameters:
“A”: acidity that defines the dangerousness of the fumes for people and the corrosiveness for things.
It varies from a1 to a3.
“S”: opacity of the fumes. It varies from s1a to s3.
“D”: dripping of incandescent particles that can spread the fire. It varies from d0 to d2.
Assessment and verification of Constancy of performance (AVCP) must be carried out from class C to class A, including the initial test and factory production control (FPC).
What are the basic requirements for CPR certification?
A) Safety in case of fire (Requirement n.2- Annex 1 of the CPR Regulation)
the generation and spread of fire and smoke within them are limited;
the spread of fire to nearby construction works is limited;
the occupants can abandon the construction works or be rescued in any other way;
the safety of the rescue teams is taken into account.
B) Hygiene, health and the environment (Requirement n ° 3 – Annex 1 of the CPR Regulation)
The compliance of the cables with the requirements of hygiene, health and the environment is implicitly considered to be absolved by compliance with the RoHS Directive (2011/65 / EU and subsequent amendments) and the REACH Regulation (1907/2006 / EC).
ARE FIRE RESISTANT CABLES THEREFORE INCLUDING CPR?
CEI 20-105 v2
CEI 20-105 v2: Fire resistant cables, flame retardant, halogen free, with nominal voltage 100 / 100V for applications in fixed automatic detection and fire alarm systems.
The standard deals specifically:
4.1 Reaction to fire
4.1.1 Reaction to fire – CPR classification
Taking into account the degree of safety that these cables must guarantee, the cables of this standard must pass the tests required by the fire reaction class Cca-s1b, d1, a1 according to the indications given in the CEI-UNEL 35016 standard. , tests and methods for evaluating the reaction to fire of cables in order to allow classification
according to the Construction Products Regulation are specified by the EN 50575 standard.
6.1 CPR Construction Products Regulation (305/2011)
With regard to safety in the event of fire (Reaction to fire), belonging to a certain class and the consistency of the cable’s performance must be checked and certified by independent Notified Bodies.
Following the issuance by the Notified Body of the Certificate of Constancy of Performance (AVCP) *, the manufacturer must draw up his own “Declaration of Performance” (DoP) in order to be able to place the CE marking.
Below we can see schematically represented the different classes of the relevant legislation and the requirements (main and additional) to be able to fall within them. The diagram also shows the places where the regularly classified product can be installed.
The reference tests for the classification of cables are as follows. Each one of them has its own classification criteria, a possible supplementary system and an AVCP system.
Fca: proof by the manufacturer
Dca: EN60332-1-2 + EN50399
Cca: EN60332-1-2 + EN50399 / EN61034-2 + EN60754
B2ca: EN60332-1-2 + EN50399 / EN61034-2 + EN60754
B1ca: EN60332-1-2 + EN50399 / EN61034-2 + EN60754
Aca: EN ISO 1716
Each reference standard / test foresees classification limits for the various parameters (dripping, opacity of the fumes, …). Below you can see the main ones:
The wording: Cca s1b d1 a2 indicates:
Cca: a standardized cable in class Cca
s1: smoke production (EN 50399)
TSP1200s ≤ 50 m2
SPR max. ≤ 0.25 m2 / s
b: transmittance ≥60% and <80% (EN 61034-2)
d1: no dripping / particles that persist more than 10s (EN50399)
a2: acidity of gases (EN 60754-2) conductivity <μS / mm pH> 4.3
ELANFIRE fire resistant cable compliant with CPR
The ELANFIRE fire resistant cables produced by ELAN fall into class Cca – s1a, d0, a1.
The cables comply with EN50200 PH120 (fire resistant at 850 ° C for 2 hours), with CEI 20-105, UNI 97-95 and CEI 36762.
Below are the fire resistant cables compliant with CPR Cca – s1a, d0, a1:
Cod. 28210 (1) – (5) R – 2×1.00 + SCH.
Cod. 28215 (1) – (5) R – 2X1,50 + SCH.
Cod. 28225 (1) – (5) R – 2X2,50 + SCH.
Cod. 27215 (1) – (5) V – 2X1,50 N-SCH. – EVAC (in the certification phase)
Cod. 27225 (1) – (5) V – 2X2,50 N-SCH. – EVAC (in the certification phase)
All the DOP (Declaration of performance), the technical sheets and the conformity of these cables are freely downloadable on the ELAN website: www.elan.an.it
All the cables in question are available in 100mt coils and 500mt reels.