1）Fire on combustible solid surfaces:

Such as libraries, archives, museums and cultural relics museums.

2）Combustible liquid fire:

Such as hydraulic stations, lubrication stations, diesel-fueled power generator rooms, oil-immersed transformer rooms, fuel boiler rooms, cooking equipment inside kitchens and their fume hoods and exhaust ductwork, etc.

3）Fire on live equipment:

Such as power distribution rooms, electronic information computer rooms, cable tunnels and cable sandwiches, etc.