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Fire Authority Requirement - DocsBay
FUEL OIL STORAGE INSTALLATIONS AND BOILER HOUSE
(1)In general fuel oil installations shall comply with British Standard (B.S.) 5410 ‘Code of Practice for Oil Firing’.
(i)B.S. 5410 Part 1: 1997 Installations up to 44kW – output capacity for space heating and hot water supply purposes.
(ii)B.S. 5410 Part 2: 1998 Installations of 44kW or above output capacity for space heating, water and steam supply purposes.
(iii) Other situations B.S. 5410 Part 3: 1976.
(2) The installation of the appliances, oil storage, etc. shall comply with the relevant parts of Section N and R of the proposed Building Regulations (Oct. 1983) and latest amendments.
(3) Oil storage tanks shall comply with B.S. 799 Part 5: 1975. They shall be sited in the open air. For domestic situations, any tank with a volume less than 3,400 litres shall be at least 1.8m from the nearest building and/or boundary, unless a screen wall is sited between the tank and building/boundary in accordance with regulation N19 and Associated Table of the Proposed Building Regulations and B.S. 5140: Part 1: 1977 Paragraph 28. The lower limit of Reg. N.19 does not apply to these Requirements.
(4)(a) All tanks above ground greater than 2,000 capacity shall be provided with a suitable catchpit or bund to accommodate the tank plus 10% of its volume – See Fire Authority Requirements for bund walls.
(b) If a screen wall is required, it shall be of non-combustible construction and shall attain 2 hour fire resistance for tanks of greater volume than 3,400 litres, otherwise 1 hour fire resistance. It shall be site at most 225mm from the tank and project beyond the height and width of the tank by a minimum distance of 300mm for tanks of volumes less than 3,400 litres, otherwise 900mm projection – see Reg N 19(7) of the Proposed Building Regulations.
(5) For non-domestic situations, the oil fired installations, siting of tanks, etc. shall comply with B.S. 5410: Part 2: 1978 or Part 3: Reg. 111.19, Reg. N.17, for places of special risk and relevant regulation of Section R of the Proposed Building Regulations. Applicant should consult the Fire Authority.
(6) Where oil tanks are sited within buildings, they shall be enclosed in a chamber of fire resisting construction, all walls, floors and roof attaining a minimum fire resistance of 2 hours, when tested to B.S. 476: Part 8: 1972. Adequate ventilation shall be provided to the chamber, ideally by natural means. If air ducting is necessary, it shall be non-combustible and attain 2 hour fire resistance as well. Oil fired appliances and oil tanks shall not be housed in the same chamber.
(7) All doors and openings in a chamber shall attain the fire resistance of the enclosing wall, or 1 hour fire resistance, whichever is the lesser. Such doors shall open out, and be easily openable from the inside, without the use of a key.
(8) Locations of Boilers: (including Air Heaters)
In general, appliances should be sited in accordance with Section R of the Proposed Building Regulations: R 41 for Class III (Output 45 kW).
In general, appliances should be sited in accordance with Section R of the Proposed Building Regulatins: R 41 for Class III (Output 45kW) and R 45 for Class IV Appliances Output (greater than 45 kW).
However oil fired boilers shall be sited in separate fire resisting enclosures, a minimum fire resistance of 1 hour for appliances up to 45 kW. For boilers with outputs greater than 45 kW in non domestic situations, applicant should consult B.S. 5410: Part 2: 1978, or Part 3: 1976 for fire resistance requirements and N 17 of the proposed Building Regulations.
In general, if a boiler house is in a house, it will be sited at the lowest floor level and enclosed within non combustible 1 hour fire resisting construction to B.S. 476: Part 8: 1972, i.e. walls, floor, roof. It shall ideally be only accessible from the open air, and provided with adequate ventilation, for both natural purposes and combustion air. If the boiler house communicates internally with a premises such a door shall attain half hour fire resistance when tested to B.S. 476: Part 8: 1972. A threshold of 75mm shall also be provided across all door openings, to retain oil spillage.
(9)A fire valve shall be provided to all tank chambers and boiler house chambers in accordance with relevant part of B.S. 5410: and B.S. 799: Part 5. Fire valve shall be located as near as possible to the point where supply pipe enters the building.
(10)Flues and chimneys for oil fired appliances shall be in accordance with Section R of the Proposed Building Regulations and relevant parts of B.S. 5410.
(11) Suitable and adequate fire fighting equipment shall be provided in accordance with the requirement of the Fire Authority.
(12) Fixed foam inlets may be required to oil tank chambers and boiler houses, due to inaccessibility, e.g. in basements. Fixed foam inlets shall comply with B.S. 5306: Part 2: 1976.
If the applicant has any queries about the above, he/she should contact the Chief Fire Officer. Final interpretation of the above requirements is at the discretion of the Fire Prevention Department of Mayo County Council.
S. MURPHY, B.E.