When the boiler room is arranged in the building, in addition to complying with the relevant provisions of the "Boiler House Design Specification GB 50041-92", it shall also comply with the following provisions of the "Code for Fire Protection of Building Design":
5.4.1 Coal-fired, gas-fired, oil-fired boilers, oil-immersed power transformers, fuel-filled high-voltage capacitors and multi-oil switches should be built independently. When it is really difficult, it can be placed adjacent to the civil building, but it should be separated by a firewall, and should not be placed in close crowds.
5.4.2 When fuel or gas boilers, oil-immersed power transformers, fuel-filled high-voltage capacitors and multi-oil switches are subject to conditions that must be placed in civil buildings, they should not be placed on the upper floor of personnel-intensive places. The next layer or adjacent, and should meet the following requirements:
1 The fuel and gas boiler room and transformer room should be installed on the first floor or the underground floor on the outer wall, but the normal (negative) pressure fuel and gas boiler can be set on the second floor of the underground. When the normal (negative) pressure gas boiler is safe When the distance of the exit is greater than 6m, it can be placed on the roof.
Oil-fired boilers should be fueled with a Class C liquid. A boiler that uses a combustible gas with a relative density (ratio to air density) of 0.75 or more shall not be placed in an underground or semi-underground building (room);
2 The doors of the boiler room and transformer room shall be directly connected to the outdoor or through the safety exit; the non-combustible fire-proof provocation of the width of not less than 1m or the window sill wall of not less than 1.2m shall be provided above the opening part of the external wall;
3 The non-combustible partition wall with a fire resistance of not less than 2.00h and a non-combustible floor of 1.50h shall be separated between the boiler room, the transformer room and other parts. There should be no openings in the partition walls and floor slabs. When doors and windows must be opened on the partition walls, Class A fire doors and windows should be installed;
4 When the oil storage room is installed in the boiler room, the total storage capacity should not exceed 1m3, and the oil storage room should be separated from the boiler by a firewall; when the door must be opened on the firewall, a Class A fire door should be set;
5 Between the transformer rooms, between the transformer room and the power distribution room, the non-combustion wall with a fire resistance limit of not less than 20h shall be used;
6 Oil-immersed power transformers, multi-oil switch rooms, and high-voltage capacitor rooms shall be provided with facilities to prevent oil from escaping. An oil storage facility for storing all the oil in the transformer shall be provided below the oil-immersed power transformer;
7 The capacity of the boiler should comply with the relevant provisions of the current national standard “Code for Design of Boiler Houses†GB 50041. The total capacity of oil-immersed power transformers shall not exceed 1260kV•A, and the capacity of single units shall not exceed 630kV•A;
8 Fire alarm device should be set up;
9. Fire-fighting facilities should be set up to suit the boiler and oil-immersed transformer capacity and building scale;
10 Gas-fired boiler rooms shall be provided with explosion-proof pressure relief facilities. Gas and oil-fired boiler rooms shall be provided with independent ventilation systems and shall comply with the relevant provisions of Chapter 10 of this code.
In perfect binding, adhesive alone is used to attach the pages of a book together and attach the book`s cover.
If only one adhesive application is used to construct the book, it is called a [one-shot process."
When two adhesive applications are required, it is a [two-shot process."
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The second application of adhesive is used to attach the book`s cover to the side of the book spine. This adhesive is referred to as the [cover" glue.
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