Solve how to deal with the fire prevention of the fire lighting distribution box shell and what the fire sign looks like.

Fire-fighting lighting distribution box should adopt fire-retardant coatings that meet the specified fire resistance limit and insulation, which one should refer to the relevant requirements in the Code for Fire Protection Design of Buildings; There is no specific mandatory provision for obvious fire signs. It can be an electrical symbol pattern without warning, combined with "Don't touch the fire power distribution", "Don't touch idle people in the fire power distribution" or a pattern with additional words. Because the fire sign is not specifically for the distribution box, it is ok as long as it can express the special electrical circuit for fire protection.