The width of fire escape routes, NET is not less than 900 mm tongkwang, measured at the point where the narrow fire exit in the path except for the extrusion into the 110 mm per and 950 mm maximum.
The width of escape routes, fire A width of not less than 900 mm, measured at the narrowest point in the fire. Except for the part that extends into the side not exceeding 110 mm and a height not exceeding 950 mm.
The width of the line of fire. Must have wide net of not less than 900 mm. By measuring the narrowest point in line of fire. Except for the filed in the no more than 110 mm and height of no more than 950 mm.