Building Regulations Approved materials

The relative conductivity of building materials is therefore an important factor in the fire resisting ability of a structure or building. This issue is considered within the Building Regulations Approved Document B. 

The three BS 476 classifications used by the Building Regulations Approved Document for lining materials are ... 

Figure 9.61 Adapted from Building Regulations Approved Document B - Fire Safety, 2006 Edition (The Stationery Office, 2005). Crown Copyright material is reproduced with the permission of the Controller of HMSO and Queen s Printer for Scotland.

Part III modifies the Public Health Acts 1936—61 and the Building (Scotland) Act 1959 with respect of powers to make building regulations and deals with provisions as to the approval of plans, unsuitable materials, type relaxations, approved types of building, carrying out of tests, etc. 

Size of site to accommodate operation (D9 - discretionary). This criterion requires a demonstration that there will be sufficient area within the boimdaries of the nominated sites to allow secure operation of at least one new build nuclear power station. Atypical layout for the generic APIOOO plant is discussed elsewhere in Chapter 2 of this PCSR. With the exception of the parking area, the entire facility is contained within a perimeter fence that encloses approximately 10 hectares (ha). The site boimdaries for the SSA nominated sites enclose areas of between 75 ha and 298 ha (Reference 3.7). Allowing for ancillary facilities, the typical area estimated for the S SA nominated sites required for operational purposes is 3 0 to 50 ha. Hence, all of the nominated sites are sufficient area for at least one new build nuclear power station. The finalised layout will need to ensure that the constructed AP 1000 plant can be operated in a safe and secure marmer, with access to site (and nuclear materials) strictly controlled. The finalised layout will need to accommodate both generic and site specific requirements and meet with the approval of the regulators. 

---