Add to ORKGA protected shaft containing a protected stairway and/or a lift should not also contain either of the following. a. A pipe that conveys oil, other than in the mechanism of a hydraulic lift. b. A ventilating duct. Two exceptions are as follows. i. A duct provided for pressurising the protected stairway to keep it smoke free. ii. A duct provided only to ventilate the protected stairway. A pipe that is completely separated from a protected shaft by fire resisting construction is not considered to be contained within that shaft
ES leakage rated fire and smoke damper conforming to BS EN 13501-3/BS EN 1366-2 Smoke detection sys...
Natural smoke outlet shafts should be separated from each other using construction of class A1 ratin...
Every common stair should be a protected stairway. Where the protected stairway passes from one comp...
Any stair or other shaft passing directly from one compartment to another should be enclosed in a pr...
Ventilation ducts supplying or extracting air directly to or from a protected stairway should not al...
A protected shaft conveying piped flammable gas should be ventilated direct to the outside air, by v...
The external wall of a protected shaft does not normally need to have fire resistance. Situations wh...
In a protected shaft, any pipe carrying natural gas or LPG should be both of the following. a. Of s...
Gas service and installation pipes and meters should not be within a protected stairway, unless inst...
All of the following precautions should be taken to avoid the spread of smoke and fire to the protec...
Pipes passing through a fire-separating element, unless in a protected shaft, should meet one of the...
A lift shaft serving storeys above ground level should not serve any basement, if either of the foll...
NOTE: Ventilation ducts which serve other parts of the building should not supply or extract air di...
Method 1 should not be used for extract ductwork passing through the enclosures of protected escape ...
A protected stairway should not be used for anything else, except a lift well or electricity meters
ES leakage rated fire and smoke damper conforming to BS EN 13501-3/BS EN 1366-2 Smoke detection sys...
Natural smoke outlet shafts should be separated from each other using construction of class A1 ratin...
Every common stair should be a protected stairway. Where the protected stairway passes from one comp...
Any stair or other shaft passing directly from one compartment to another should be enclosed in a pr...
Ventilation ducts supplying or extracting air directly to or from a protected stairway should not al...
A protected shaft conveying piped flammable gas should be ventilated direct to the outside air, by v...
The external wall of a protected shaft does not normally need to have fire resistance. Situations wh...
In a protected shaft, any pipe carrying natural gas or LPG should be both of the following. a. Of s...
Gas service and installation pipes and meters should not be within a protected stairway, unless inst...
All of the following precautions should be taken to avoid the spread of smoke and fire to the protec...
Pipes passing through a fire-separating element, unless in a protected shaft, should meet one of the...
A lift shaft serving storeys above ground level should not serve any basement, if either of the foll...
NOTE: Ventilation ducts which serve other parts of the building should not supply or extract air di...
Method 1 should not be used for extract ductwork passing through the enclosures of protected escape ...
A protected stairway should not be used for anything else, except a lift well or electricity meters
ES leakage rated fire and smoke damper conforming to BS EN 13501-3/BS EN 1366-2 Smoke detection sys...
Natural smoke outlet shafts should be separated from each other using construction of class A1 ratin...
Every common stair should be a protected stairway. Where the protected stairway passes from one comp...