Flame Propagation Test (Bunched)

General Information  

Samples / Time for flame application:  

No. of the samples (each3.5 m long) is Calculated as follows:  

• Cat. A: 7 l/m, Time > 40 min.  

• Cat. B: 3.5 l/m, Time > 40 min.  

• Cat. C: 1.5 l/m, Time > 20 m in.  

(Total volume of non-metal material in ...liter / meter)  

The cable shall pass the test, if the created flames are self extinguishing and the maximum extent of the charred portion measured on the sample shall not have reached a height exceeding 2.5 m above the bottom edge of the burner. All soot is to be ignored if, when wiped off, the original surface is undamaged. Softening or any deformation of the non metallic is also to be ignored.  

Kind of test using the equipment:  

- Test of the fire behavior on bunched cables, reduced flame propagation.  

(IEC 60332-3, cat. A, B or C)  

Technical specifications  

- The chamber for bunched burning with auto lifting and dropping ladders device.  

- The control cabinet with twice gas supply system, monitoring for chamber
   temperature and time control.  

- A set of dedusting and exhaust fume system with 4 layer filtering.  

- Two normative ribbon burner installed on dolly (with Venturi mixer)  

- Two burning ladder (one normative ladder and one wider ladder)

- A set of anemometer for measuring air flow in chamber. The air anemometer used
  in discharge inside the body of a set of box constitutes