CELEX: 32016R0364
Language: en
Date: 2015-07-01 00:00:00
Title: Commission Delegated Regulation (EU) 2016/364 of 1 July 2015 on the classification of the reaction to fire performance of construction products pursuant to Regulation (EU) No 305/2011 of the European Parliament and of the Council (Text with EEA relevance)

15.3.2016   
            
            
               EN
            
            
               Official Journal of the European Union
            
            
               L 68/4
            
         COMMISSION DELEGATED REGULATION (EU) 2016/364
   of 1 July 2015
   on the classification of the reaction to fire performance of construction products pursuant to Regulation (EU) No 305/2011 of the European Parliament and of the Council
   (Text with EEA relevance)
   THE EUROPEAN COMMISSION,
   Having regard to the Treaty on the Functioning of the European Union,
   Having regard to Regulation (EU) No 305/2011 of the European Parliament and of the Council of 9 March 2011 laying down harmonised conditions for the marketing of construction products and repealing Council Directive 89/106/EEC (1), and in particular Article 27(1) thereof,
   Whereas:
   
               (1)
            
            
               A system for classifying the performance of construction products with regard to their reaction to fire was adopted by Commission Decision 2000/147/EC (2). It was based on a harmonised solution of assessing this performance and classifying the results of these assessments.
            
         
               (2)
            
            
               Decision 2000/147/EC provides several classes of reaction to fire performance. In addition, it contains classes F, FFL, FL and Fca, which are defined as ‘no performance determined’.
            
         
               (3)
            
            
               In accordance with Article 2(7) of Regulation (EU) No 305/2011, a class means a range of levels, delimited by a minimum and a maximum value of performance. Classes defined as ‘no performance determined’ do not correspond to this definition and thus cannot be incorporated in a classification system under Regulation (EU) No 305/2011.
            
         
               (4)
            
            
               The use of ‘no performance determined’ in the context of drawing up the declaration of performance is provided in Article 6(3)(f) of Regulation (EU) No 305/2011.
            
         
               (5)
            
            
               In order to enable the manufacturers to declare lower reaction to fire performance than that covered by classes E, EFL, EL and Eca, it is necessary to change the classification criteria of classes F, FFL, FL and Fca accordingly.
            
         
               (6)
            
            
               It is therefore necessary to replace the classes F, FFL, FL and Fca provided in Decision 2000/147/EC with new classes for products not reaching at least the reaction to fire performance under the classes E, EFL, EL and Eca.
            
         
               (7)
            
            
               Decision 2000/147/EC has been amended several times and further amendments to that Decision are necessary. In the interests of clarity and rationality that decision should therefore be repealed and replaced,
            
         HAS ADOPTED THIS REGULATION:
   Article 1
   When the intended use of a construction product is such that the product may contribute to the generation and spread of fire and smoke within the room or area of origin or beyond, the performance of the product in relation to its reaction to fire shall be classified in accordance with the classification system set out in the Annex.
   Article 2
   Decision 2000/147/EC is repealed.
   References to the repealed Decision shall be construed as references to this Regulation.
   Article 3
   This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.
   
      This Regulation shall be binding in its entirety and directly applicable in all Member States.
      Done at Brussels, 1 July 2015.
      
         
            For the Commission
         
         
            The President
         
         Jean-Claude JUNCKER
      
   
   
      (1)  OJ L 88, 4.4.2011, p. 5.
   
      (2)  Commission Decision 2000/147/EC of 8 February 2000 implementing Council Directive 89/106/EEC as regards the classification of the reaction to fire performance of construction products (OJ L 50, 23.2.2000, p. 14).
   
      ANNEX
      
         Classes of reaction to fire performance
      
      
               
                  1.1.
               
               
                  For the purposes of Tables 1 to 4 the following symbols (1) apply:
                  (1)   ‘ΔΤ’— temperature rise;
                  (2)   ‘Δm’— mass loss;
                  (3)   ‘tf’— duration of flaming;
                  (4)   ‘PCS’— gross calorific potential;
                  (5)   ‘LFS’— lateral flame spread;
                  (6)   ‘SMOGRA’— smoke growth rate.
               
            
               
                  1.2.
               
               
                  For the purposes of Tables 1, 2 and 3 the following symbols (1) apply:
                  (1)   ‘FIGRA’— fire growth rate;
                  (2)   ‘THR’— total heat release;
                  (3)   ‘TSP’— total smoke production;
                  (4)   ‘Fs’— flame spread.
               
            
               
                  1.3.
               
               
                  For the purposes of Table 4 the following symbols and test parameters apply:
                  (1)   ‘HRRsm30, kW’— heat release rate averaged by a 30-s sliding average;
                  (2)   ‘SPRsm60, m2/s’— smoke production rate averaged by a 60-s sliding average;
                  (3)   ‘Peak HRR, kW’— maximum of HRRsm30 between test start and end of test, excluded contribution from ignition source;
                  (4)   ‘Peak SPR, m2/s’— maximum of SPRsm60 between test start and end of test;
                  (5)   ‘THR1200, MJ’— total heat release (HRRsm30) from test start until end of test, excluded contribution from ignition source;
                  (6)   ‘TSP1200, m2’— total smoke production (HRRsm60) from test start until end of test;
                  (7)   ‘FIGRA, W/s’— fire growth rate index defined as the highest value of the quotient between HRRsm30 excluding the contribution of ignition source and time. Threshold values HRRsm30 = 3 kW and THR = 0,4 MJ;
                  (8)   ‘FS’— flame spread (damaged length);
                  (9)   ‘H’— flame spread.
               
            
               
                  2.
               
               
                  For the purposes of Tables 1 to 4 the following definitions apply:
                  
                              (1)
                           
                           
                              ‘material’ means a single basic substance or uniformly dispersed mixture of substances;
                           
                        
                              (2)
                           
                           
                              ‘homogeneous product’ means a product consisting of a single material, having uniform density and composition throughout the product;
                           
                        
                              (3)
                           
                           
                              ‘non-homogeneous product’ means a product that does not satisfy the requirements of a homogeneous product and that is composed of one or more components, substantial and/or non-substantial;
                           
                        
                              (4)
                           
                           
                              ‘substantial component’ means a material that constitutes a significant part of a non-homogeneous product; a layer with a mass per unit area ≥ 1,0 kg/m2 or a thickness ≥ 1,0 mm is considered to be a substantial component;
                           
                        
                              (5)
                           
                           
                              ‘non-substantial component’ means a material that does not constitute a significant part of a non-homogeneous product; a layer with a mass per unit area < 1,0 kg/m2 and a thickness < 1,0 mm is considered to be a non-substantial component;
                           
                        
                              (6)
                           
                           
                              ‘internal non-substantial component’ means a non-substantial component that is covered on both sides by at least one substantial component;
                           
                        
                              (7)
                           
                           
                              ‘external non-substantial component’ means a non-substantial component that is not covered on one side by a substantial component.
                           
                        Two or more non-substantial layers that are adjacent to each other, where there are no substantial components in between the layers, shall be considered as one non-substantial component and shall, therefore, be classified in accordance with the criteria for a layer that is a non-substantial component.
               
            
         Table 1
      
      
         Classes of reaction to fire performance for construction products excluding floorings, linear pipe thermal insulation products, and electric cables
      
      
                  Class
               
               
                  Test method(s)
               
               
                  Classification criteria
               
               
                  Additional classification
               
            
                  
                     A1
                  
               
               
                  EN ISO 1182 (2);
                  
                     and
                  
               
               
                  ΔΤ ≤ 30 °C; and
                  
                  Δm ≤ 50 %; and
                  
                  tf = 0 (i.e. no sustained flaming)
               
               
                   
               
            
                  EN ISO 1716
               
               
                  PCS ≤ 2,0 MJkg– 1
                      (2); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (3)
                      (1); and
                  
                  PCS ≤ 1,4 MJm– 2
                      (4); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (5)
                  
               
               
                   
               
            
                  
                     A2
                  
               
               
                  EN ISO 1182 (2);
                  
                     or
                  
               
               
                  ΔΤ ≤ 50 °C; and
                  
                  Δm ≤ 50 %; and
                  
                  tf ≤ 20 s
               
               
                   
               
            
                  EN ISO 1716;
                  
                     and
                  
               
               
                  PCS ≤ 3,0 MJkg– 1
                      (2); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (3); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (4); and
                  
                  PCS ≤ 3,0 MJkg– 1
                      (5)
                  
               
               
                   
               
            
                  EN 13823 (SBI)
               
               
                  FIGRA ≤ 120 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 7,5 MJ
               
               
                  Smoke production (6); and
                  
                  Flaming droplets/particles (7)
                  
               
            
                  
                     B
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 120 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 7,5 MJ
               
               
                  Smoke production (6); and
                  
                  Flaming droplets/particles (7)
                  
               
            
                  EN ISO 11925-2 (9):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     C
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 250 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 15 MJ
               
               
                  Smoke production (6); and
                  
                  Flaming droplets/particles (7)
                  
               
            
                  EN ISO 11925-2 (9):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     D
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 750 Ws– 1
                  
               
               
                  Smoke production (6); and
                  
                  Flaming droplets/particles (7)
                  
               
            
                  EN ISO 11925-2 (9):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     E
                  
               
               
                  EN ISO 11925-2 (9):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
               
                  Flaming droplets/particles (8)
                  
               
            
                  
                     F
                  
               
               
                  EN ISO 11925-2 (9):
                  
                     Exposure = 15 s
                  
               
               
                  Fs > 150 mm within 20 s
               
               
                   
               
            
         
      
         Table 2
      
      
         Classes of reaction to fire performance for floorings
      
      
                  Class
               
               
                  Test method(s)
               
               
                  Classification criteria
               
               
                  Additional classification
               
            
                  
                     A1FL
                     
                  
               
               
                  EN ISO 1182 (10);
                  
                     and
                  
               
               
                  ΔΤ ≤ 30 °C; and
                  
                  Δm ≤ 50 %; and
                  
                  tf = 0 (i.e. no sustained flaming)
               
               
                   
               
            
                  EN ISO 1716
               
               
                  PCS ≤ 2,0 MJkg– 1
                      (10); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (11); and
                  
                  PCS ≤ 1,4 MJm– 2
                      (12); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (13)
                  
               
            
                  
                     A2FL
                     
                  
               
               
                  EN ISO 1182 (10);
                  
                     or
                  
               
               
                  ΔΤ ≤ 50 °C; and
                  
                  Δm ≤ 50 %; and
                  
                  tf ≤ 20 s
               
               
                   
               
            
                  EN ISO 1716;
                  
                     and
                  
               
               
                  PCS ≤ 3,0 MJkg– 1
                      (10); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (11); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (12); and
                  
                  PCS ≤ 3,0 MJkg– 1
                      (13)
                  
               
            
                  EN ISO 9239-1 (14)
                  
               
               
                  Critical flux (15) ≥ 8,0 kWm– 2
                  
               
               
                  Smoke production (16)
                  
               
            
                  
                     BFL
                     
                  
               
               
                  EN ISO 9239-1 (14)
                  
                  
                     and
                  
               
               
                  Critical flux (15) ≥ 8,0 kWm– 2
                  
               
               
                  Smoke production (16)
                  
               
            
                  EN ISO 11925-2 (17):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
            
                  
                     CFL
                     
                  
               
               
                  EN ISO 9239-1 (14)
                  
                  
                     and
                  
               
               
                  Critical flux (15) ≥ 4,5 kWm– 2
                  
               
               
                  Smoke production (16)
                  
               
            
                  EN ISO 11925-2 (17):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
            
                  
                     DFL
                     
                  
               
               
                  EN ISO 9239-1 (14)
                  
                  
                     and
                  
               
               
                  Critical flux (15) ≥ 3,0 kWm– 2
                  
               
               
                  Smoke production (16)
                  
               
            
                  EN ISO 11925-2 (17):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
            
                  
                     EFL
                     
                  
               
               
                  EN ISO 11925-2 (17):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
               
                   
               
            
                  
                     FFL
                     
                  
               
               
                  EN ISO 11925-2 (17):
                  
                     Exposure = 15 s
                  
               
               
                  Fs > 150 mm within 20 s
               
               
                   
               
            
         
      
         Table 3
      
      
         Classes of reaction to fire performance for linear pipe insulation products
      
      
                  Class
               
               
                  Test method(s)
               
               
                  Classification criteria
               
               
                  Additional classification
               
            
                  
                     A1L
                     
                  
               
               
                  EN ISO 1182 (18);
                  
                     and
                  
               
               
                  ΔT ≤ 30 °C; and
                  
                  Δm ≤ 50 %; and
                  
                  tf = 0 (i.e. no sustained flaming)
               
               
                   
               
            
                  EN ISO 1716
               
               
                  PCS ≤ 2,0 MJkg– 1
                      (18); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (19); and
                  
                  PCS ≤ 1,4 MJm– 2
                      (20); and
                  
                  PCS ≤ 2,0 MJkg– 1
                      (21)
                  
               
            
                  
                     A2L
                     
                  
               
               
                  EN ISO 1182 (18);
                  
                     or
                  
               
               
                  ΔT ≤ 50 °C; and
                  
                  Δm ≤ 50 %; and tf ≤ 20 s
               
               
                   
               
            
                  EN ISO 1716;
                  
                     and
                  
               
               
                  PCS ≤ 3,0 MJkg– 1
                      (18); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (19); and
                  
                  PCS ≤ 4,0 MJm– 2
                      (20); and
                  
                  PCS ≤ 3,0 MJkg– 1
                      (21)
                  
               
            
                  EN 13823 (SBI)
               
               
                  FIGRA ≤ 270 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 7,5 MJ
               
               
                  Smoke production (22); and
                  
                  Flaming droplets/particles (23)
                  
               
            
                  
                     BL
                     
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 270 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 7,5 MJ
               
               
                  Smoke production (22); and
                  
                  Flaming droplets/particles (23)
                  
               
            
                  EN ISO 11925-2 (25):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     CL
                     
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 460 Ws– 1; and
                  
                  LFS < edge of specimen; and
                  
                  THR600s ≤ 15 MJ
               
               
                  Smoke production (22); and
                  
                  Flaming droplets/particles (23)
                  
               
            
                  EN ISO 11925-2 (25):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     DL
                     
                  
               
               
                  EN 13823 (SBI);
                  
                     and
                  
               
               
                  FIGRA ≤ 2 100  Ws– 1
                  
                  THR600s ≤ 100 MJ
               
               
                  Smoke production (22); and
                  
                  Flaming droplets/particles (23)
                  
               
            
                  EN ISO 11925-2 (25):
                  
                     Exposure = 30 s
                  
               
               
                  Fs ≤ 150 mm within 60 s
               
            
                  
                     EL
                     
                  
               
               
                  EN ISO 11925-2 (25):
                  
                     Exposure = 15 s
                  
               
               
                  Fs ≤ 150 mm within 20 s
               
               
                  Flaming droplets/particles (24)
                  
               
            
                  
                     FL
                     
                  
               
               
                  EN ISO 11925-2 (25):
                  
                     Exposure = 15 s
                  
               
               
                  Fs > 150mm within 20 s
               
               
                   
               
            
         
      
         Table 4
      
      
         Classes of reaction to fire performance for electric cables
      
      
                  Class
               
               
                  Test method(s)
               
               
                  Classification criteria
               
               
                  Additional classification
               
            
                  
                     Aca
                     
                  
               
               
                  EN ISO 1716
               
               
                  PCS ≤ 2,0 MJ/kg (26)
                  
               
               
                   
               
            
                  
                     B1ca
                     
                  
               
               
                  EN 50399 (30 kW flame source)
                  
                     and
                  
               
               
                  FS ≤ 1,75 m and
                  
                  THR1200s ≤ 10 MJ and
                  
                  Peak HRR ≤ 20 kW and
                  
                  FIGRA ≤ 120 Ws– 1
                  
               
               
                  Smoke production (27)
                      (30) and Flaming droplets/particles (28) and Acidity (pH and conductivity) (29)
                  
               
            
                  EN 60332-1-2
               
               
                  H ≤ 425 mm
               
            
                  
                     B2ca
                     
                  
               
               
                  EN 50399 (20,5 kW flame source)
                  
                     and
                  
               
               
                  FS ≤ 1,5 m; and
                  
                  THR1200s ≤ 15 MJ; and
                  
                  Peak HRR ≤ 30 kW; and
                  
                  FIGRA ≤ 150 Ws– 1
                  
               
               
                  Smoke production (27)
                      (31) and Flaming droplets/particles (28) and Acidity (pH and conductivity) (29)
                  
               
            
                  EN 60332-1-2
               
               
                  H ≤ 425 mm
               
            
                  
                     Cca
                     
                  
               
               
                  EN 50399 (20,5 kW flame source)
                  
                     and
                  
               
               
                  FS ≤ 2,0 m; and
                  
                  THR1200s ≤ 30 MJ; and
                  
                  Peak HRR ≤ 60 kW; and
                  
                  FIGRA ≤ 300 Ws– 1
                  
               
               
                  Smoke production (27)
                      (31) and Flaming droplets/particles (28) and Acidity (pH and conductivity) (29)
                  
               
            
                  EN 60332-1-2
               
               
                  H ≤ 425 mm
               
            
                  
                     Dca
                     
                  
               
               
                  EN 50399 (20,5 kW flame source)
                  
                     and
                  
               
               
                  THR1200s ≤ 70 MJ; and
                  
                  Peak HRR ≤ 400 kW; and
                  
                  FIGRA ≤ 1 300  Ws– 1
                  
               
               
                  Smoke production (27)
                      (31) and Flaming droplets/particles (28) and Acidity (pH and conductivity) (29)
                  
               
            
                  EN 60332-1-2
               
               
                  H ≤ 425 mm
               
            
                  
                     Eca
                     
                  
               
               
                  EN 60332-1-2
               
               
                  H ≤ 425 mm
               
               
                   
               
            
                  
                     Fca
                     
                  
               
               
                  EN 60332-1-2
               
               
                  H > 425 mm
               
               
                   
               
            
         (1)  The characteristics are defined with respect to the appropriate test method.
      
         (2)  For homogeneous products and substantial components of non-homogeneous products.
      
         (3)  For any external non-substantial component of non-homogeneous products.
      
         (1)  
      
                  (2a)
               
               
                  Alternatively, any external non-substantial component having a PCS ≤ 2,0 MJm– 2, provided that the product satisfies the following criteria of EN 13823(SBI): FIGRA ≤ 20 Ws– 1; and LFS < edge of specimen; and THR600s ≤ 4,0 MJ; and s1; and d0.
               
            
         (4)  For any internal non-substantial component of non-homogeneous products.
      
         (5)  For the product as a whole.
      
         (6)  s1 = SMOGRA ≤ 30m2s– 2
         and TSP600s ≤ 50m2; s2 = SMOGRA ≤ 180m2s– 2
         and TSP600s ≤ 200m2; s3 = not s1 or s2.
      
         (7)  d0 = No flaming droplets/particles in EN 13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN 13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.
      
         (8)  No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.
      
         (9)  Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
      
         (10)  For homogeneous products and substantial components of non-homogeneous products.
      
         (11)  For any external non-substantial component of non-homogeneous products.
      
         (12)  For any internal non-substantial component of non-homogeneous products.
      
         (13)  For the product as a whole.
      
         (14)  Test duration = 30 minutes.
      
         (15)  Critical flux is defined as the radiant flux at which the flame extinguishes or the radiant flux after a test period of 30 minutes, whichever is the lower (i.e. the flux corresponding with the furthest extent of spread of flame).
      
         (16)  s1 = Smoke ≤ 750 %.min; s2 = not s1.
      
         (17)  Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
      
         (18)  For homogeneous products and substantial components of non-homogeneous products.
      
         (19)  For any external non-substantial component of non-homogeneous products.
      
         (20)  For any internal non-substantial component of non-homogeneous products.
      
         (21)  For the product as a whole.
      
         (22)  s1 = SMOGRA ≤ 105 m2s– 2
         and TSP600s ≤ 250 m2; s2 = SMOGRA ≤ 580 m2s– 2
         and TSP600s ≤ 1 600 m2; s3 = not s1 or s2.
      
         (23)  d0 = No flaming droplets/particles in EN13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.
      
         (24)  No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.
      
         (25)  Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
      
         (26)  For the product as a whole, excluding metallic materials, and for any external component (i.e. sheath) of the product.
      
         (27)  s1 = TSP1200 ≤ 50 m2
         and Peak SPR ≤ 0,25 m2/s
      
         s1a = s1 and transmittance in accordance with EN 61034-2 ≥ 80 %
      
         s1b = s1 and transmittance in accordance with EN 61034-2 ≥ 60 % < 80 %
      
         s2 = TSP1200 ≤ 400 m2
         and Peak SPR ≤ 1,5 m2/s
      
         s3 = not s1 or s2
      
         (28)  d0 = No flaming droplets/particles within 1 200 s; d1 = No flaming droplets/particles persisting longer than 10 s within 1 200 s; d2 = not d0 or d1.
      
         (29)  EN 60754-2: a1 = conductivity < 2,5 μS/mm and pH > 4,3; a2 = conductivity < 10 μS/mm and pH > 4,3; a3 = not a1 or a2.
      
         (30)  The smoke class declared for class B1ca cables must originate from the EN 50399 test (30 kW flame source).
      
         (31)  The smoke class declared for class B2ca, Cca, Dca cables must originate from the EN 50399 test (20,5 kW flame source).