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Code for safety design and national design of steel fire doors
2017-06-02
In general, people said a fire door, we first come is certainly a hospital, school, public bank, these people, in fact, many people do not know, we also often require the use of Home Furnishing fire doors, fire doors on the market a lot, and the steel fire door is one very common, ordinary family is also installed a preferred, but safety specification for steel fire door in the end is how to design the state standard, how is it? Here to take you to see.
Code for safety of steel fire doors
1) safety specification
Steel fire door fire door is a kind of widely used now, many people will want to know the safety rules of the fire door is exactly what, in fact, simply say that as long as the door is opposite the elevator antechamber is if there is a lift and between the vertical or horizontal buffer space, or is the opposite open stairs fire channel in these places, people for the sake of safety, the state provisions must install fire doors, and if you live in the floor is 11 and did not reach the 11 floor apartment, house or for entrance staircase, are not allowed to install fire doors, if in the 18 layer or the following 18 storey, door must be installed fire door. If residential households doors must be open to the front room, the door must also be installed in the fire door.
2) standard classification
You may not know, the new standard fire doors in China by the two part of the concept of fire doors and non thermal insulation fireproof door, and the fire doors are classified, from the original only in the heat insulation fire door classification, completely changed to heat insulation fireproof door (Class A), part of the heat insulation fireproof door (B) and non insulated fire door (C) classification, we will go to a look at about how to classify
1, a fire door
The fire door is what we are saying is completely insulated fire door, mainly within the stipulated time, can satisfy the fire insulation and fire integrity requirements, fire resistance rating were 0.5h (c), 1.0h (b), 1.5h (Class A) and 2.0h, 3.0h.
Class B fire door
This fire door is a part of insulated fire doors, the fire resistance of this kind of fireproof is lower than that of the former, the requirement is 0.5 hours, and the fire integrity grades are 1.0h, 1.5h, 2.0h and 3.0h respectively.
Class C fire door
This is currently the most unsafe non insulated fire door, the fire door fire insulation is not required, the fire within the stipulated time only to meet fire integrity requirements, fire integrity levels were 1.0h, 1.5h, 2.0h, 3.0h.
Standard for national installation design of steel fire doors
Steel fire door is now on the market is relatively large, so we at the time of installation, to understand the national design standard for the installation of the door, so as to ensure their installation is lifesaving door, fire door and non fatal.
1) we must first understand the steel fire door before installation, we must check it, if it is found that due to improper storage and transportation to the door frame and the door leaf warpage at this time do not immediately after installation, repair should be installed.
2) steel fire door in door, with level leveling or hanging line method around the verticality correction, to horizontal, vertical, level.
3) remember, when installing the steel fire door frame must form a whole and building, is the best connected with the iron wall, of course, when the door in the installation of the buried layer height to reach 20mm, not less than 15mm.
4) steel fire door opening direction must be for the evacuation direction, so that to ensure the fire safety escape, also must be installed in water cement mortar between the door frame and the wall, and maintenance 24h to above normal use.
5) in the installation of steel fire doors on the locks, hinges, latches, these hardware parts, their melting point is not less than 950 degrees celsius.
Summary: steel fire door fire door is a kind of widely used now, if the installation of steel fire doors, when the fire comes, it can play a certain role of fire, can increase the level of protection to our life and property, increase the time of life, we can not underestimate this time, perhaps this is you when it comes to live fire protection, which is why the country would produce such a standard and requirement in some places must install fire doors.