Division 1.2 For the purposes of Tables 1, 2 and 3 the following symbols apply:

The characteristics are defined with respect to the appropriate test method.

For homogeneous products and substantial components of non-homogeneous products.

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 THR_600s ≤ 4,0 MJ; and s1; and d0.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

s1 = SMOGRA ≤ 30m²s^{– 2} and TSP_600s ≤ 50m²; s2 = SMOGRA ≤ 180m²s^{– 2} and TSP_600s ≤ 200m²; s3 = not s1 or s2.

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.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

For homogeneous products and substantial components of non-homogeneous products.

For any external non-substantial component of non-homogeneous products.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

Test duration = 30 minutes.

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).

s1 = Smoke ≤ 750 %.min; s2 = not s1.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

For homogeneous products and substantial components of non-homogeneous products.

For any external non-substantial component of non-homogeneous products.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

s1 = SMOGRA ≤ 105 m²s^{– 2} and TSP_600s ≤ 250 m²; s2 = SMOGRA ≤ 580 m²s^{– 2} and TSP_600s ≤ 1 600 m²; s3 = not s1 or s2.

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.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

For the product as a whole, excluding metallic materials, and for any external component (i.e. sheath) of the product.

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

The smoke class declared for class B1_ca cables must originate from the EN 50399 test (30 kW flame source).

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.

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.

The smoke class declared for class B2_ca, C_ca, D_ca cables must originate from the EN 50399 test (20,5 kW flame source).