Viadrus HERCULES U 22, Руководство по эксплуатации и установке

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- for easily combustible materials of combustibility grade E (F), which quickly burn and burn
themselves even after removal of ignition source (such as paper, cardboard, asphalt and tar paper,
wood and wood-fiber boards, plastics, floor coverings) the safe distance has to be doubled, i.e. to
400 mm;
- safe distance should be doubled as bulb where the grade of reaction to fire has not been proved.
Number of sections 3 4 5 6 7 8 9 10
L (mm) 420 515 610 705 800 895 990 1085
Fig.no. 6 Retaining wall (bedding)depth
Tab. no. 7 Grade of reaction to fire
Grade of reaction to fire
Examples of building materials and products included in the reaction to fire
(Extract from EN 13501-1 + A1)
A1 – incombustible Granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproof plasters, …
A2 – combustible with difficulty acumin, izumin, heraklit, lignos, boards and basalt felt, fibreglass boards,...
B – hardly combustible
Beech and oak wood, hobrex boards, plywood, werzalit, umakart, sirkolit,...
C (D) – medium combustible Pinewood, larch, whitewood, chipboard and cork boards, rubber flooring,...
E (F) – easily combustible
Asphaltboard, fibreboards, cellulose materials, polyurethane, polystyrene,
polyethylene, PVC,…
Number of sections 3 4 5 6 7 8 9 10
L (mm)
434 530 626 722 818 914 1010 1106
Fig. no. 7 Boiler positioning in boiler room