BS 6891:1998:2003 Edition
$167.15
Specification for installation of low pressure gas pipework of up to 28 mm (R1) in domestic premises (2nd family gas)
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 34 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 5 | 1 Scope 2 Normative references |
| 7 | 3 Terms and definitions 3.1 installation pipework 3.2 duct 3.3 emergency control valve 3.4 meter control valve 3.5 primary meter 3.6 protected shaft 3.7 service pipe 3.8 sleeve |
| 8 | 4 Exchange of information and time schedule 4.1 The installation work shall be carried out by a business or self�employed person who is a “me… 4.2 At the initial stages of building design and planning the interested parties shall verify tha… 4.3 All necessary information regarding the routing of installation pipes and positions of valves… 4.4 Any installation pipe fitted as erection of a building progresses, and which will subsequentl… 4.5 Any work to be done by the gas installer that requires attendance by other trades shall be cl… 5 Pipe sizing 5.1 When designing an installation, the sizes of all installation pipes shall be determined from … 5.2 The pressure drop between the outlet of the meter and the points to be connected shall not ex… |
| 9 | Table 1 – Discharge in a straight horizontal steel pipe with 1.0 mbar differential pressure between the end… Table 2 – Discharge in a straight horizontal copper or corrugated stainless steel tube with 1.0 mbar differ… |
| 10 | 6 Materials 6.1 General 6.2 Steel 6.3 Malleable iron 6.4 Copper 6.5 Plastics |
| 11 | 6.6 Valves 6.7 Thread sealing 7 Joints 7.1 Capillary fittings 7.2 Compression fittings 7.3 Push�fit fittings 7.4 Union joints 7.5 Screwed joints |
| 12 | Figure 1 – Thread wrapping method 7.6 Jointing lead composition pipes 8 Installation 8.1 General 8.2 Safety precautions |
| 13 | Figure 2 – Use of temporary continuity bond 8.3 Pipes laid in wooden joisted floors |
| 14 | Table 3 – Maximum interval between pipe supports |
| 15 | Figure 3 – Pipes in joists |
| 16 | 8.4 Pipes laid in concrete floors 8.5 Pipes in walls |
| 17 | Figure 4 – Typical examples of buried pipe |
| 18 | Figure 5 – Typical examples of pipes in masonry and timber frame walls |
| 20 | 8.6 Sleeves 8.7 Pipework in ducts Table 4 – Free area of ventilation openings |
| 22 | Figure 6 – Typical installation in pipework multi-storey buildings containing flats or maisonettes |
| 24 | 8.8 Gas pipework inside a protected shaft containing a stair and/or lift or other protected fire … 8.9 Pipe supports and fixings 8.10 Exterior pipework |
| 25 | Figure 7 – Typical exterior pipework 8.11 Interrelation with other services |
| 27 | Figure 8 – Position of main equipotential bond (electrical cross bond) Figure 9 – Typical notification of main equipotential bonding |
| 28 | 8.12 Valves 9 Corrosion 9.1 General |
| 29 | 9.2 Buried pipework 10 Gas tightness testing and purging 10.1 Upon completion and prior to gas being made available, the installation shall be tested for … 11 Clause deleted |
| 30 | Annex A (informative) |
| 31 | Figure A.1 – Example of a calculation for a warm air unit Table A.1 – Sizing results |
