BS 669 2 1997 flexible hoses, end fittings and sockets for gas burning appliances

... Flexible hoses, end fittings and sockets for gas burning appliances BS 669 : Part 1 : 1989 2) Specification for strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances ... 400 ± 2 855 0 +15 400 ± 2 1000 21 5 +55 1 20 400 8 400 ± 2 880 20 +15 400 ± 2 1000 21 5 +55 1ï 25 460 10 500 ± 2 910 20 +15...

Ngày tải lên: 28/09/2014, 23:11

... Manager. Tel: +44 (0 )20 8996 7070. Fax: +44 (0 )20 8996 7553. Email: copyright@bsi-global.com. BS 5440 -2: 2000 6 © BSI 6 July 20 04 COMMENTARY AND RECOMMENDATIONS ON 5.1 .2. 2 Ventilation may be ... flues and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) — Part 2: Specification for installation and maintenance...

Ngày tải lên: 28/09/2014, 23:27

... draught 20 5.1 Design 20 5 .2 Installation 21 5.3 Commissioning 21 6 Shared open flue: natural draught 21 6.1 Design 21 6 .2 Installation 22 7 Balanced flue: natural draught 22 7.1 General 22 7 .2 Installation ... run Pipe 100 125 150 0.78 0 .25 0. 12 Chimney 21 3 × 21 3 0. 02 90° bend 100 mm pipe 125 mm pipe 150 mm pipe 1 .22 0.50 0 .24 per fitting 135° bend...

Ngày tải lên: 28/09/2014, 23:27

... 12 1.6 2. 0 1 .2 1.6 2. 0 2. 4 44.0 22 20 1.6 2. 0 1 .2 1.6 2. 0 2. 4 44.0 28 25 2. 0 2. 4 1.6 1.6 2. 4 2. 4 44.0 35 32 2.0 2. 4 1.6 2. 0 2. 4 2. 8 51.0 42 40 2. 3 2. 5 1.8 2. 3 2. 5 3 .2 51.0 54 50 2. 3 2. 5 1.8 2. 3 ... 15.1 525 /15.145 18 18.0 725 /18.065 18.1 525 /18.145 22 22 .0 825 /22 .075 22 .1 625 /22 .155 28 28 .0 825 /28 .075 28 .1 625 /28 .155...

Ngày tải lên: 28/09/2014, 23:11

... n ` ao ¯ d ´ o. Do v . ây, w(n) ≤ j − 1 v ` a 2 w(n) 4 √ n ≤ 2 j−1 4 √ p 1 p 2 · · · p j−1 . V ` ı v . ây k =  max  0, 2 1 4 √ 2. 3 , 2 2 4 √ 2. 3.5 , · · ·  =  2 5 4 √ 2. 3.5.7.11.13  = 5. Bây gi ` o , ta ... Ireland Theo b ´ ˘ at ¯ d , ˘ ang th ´ u , c Jensen’s ta c ´ o: f (a) + f (b) 2 ≥ f ( a + b 2 ) ⇒ 1 a + 1 b 2 ≥ 2 a + b . f (b) + f (c) 2 ≥ f ( b + c 2...

Ngày tải lên: 03/03/2014, 05:02

... EUFID: A FRIENDLY AND FLEXIBLE FRONT -END FOR DATA MANAGEMENT SYSTEMS Marjorie Templeton System Development Corporation, Santa Monica, CA. EUFID is a natural language frontend for data management ... the dictionary is not rich enough for him. For example, for efficiency a user might prefer to use "wh" for "warehouse" and "co" for "...

Ngày tải lên: 08/03/2014, 18:20

...  BSI 1998 BS 526 6 : Part 2 : 1998 List of references (see clause 2) Normative references BSI publications BRITISH STANDARDS INSTITUTION, London BS 526 6 : Emergency lighting BS 526 6 : Part ... as given in table 4.3 of BS EN 60598-1 : 1997. Licensed copy:RMJM, 07/09 /20 05, Uncontrolled Copy, © BSI ii  BSI 1998 BS 526 6 : Part 2 : 1998 Foreword This Part of BS 526 6 has...

Ngày tải lên: 28/09/2014, 23:26

... buildings (see6.3 .2, 6.3.4, 12. 3, 13 .2, 15 .2. 2 .2, 17.3 .2, 17.4.6.1, 17.4.6.3, 20 .1.4, 20 .3.1, 24 .2. 3 .2, 27 .1.1, 27 .2. 3, Table 3 and Table 28 ). 6 Selection of installation type, size and design 6.1 ... trace heating and lagging of the pipework. BS6 351-3 gives recommendations for trace heating. BS5 422 and BS5 970 give recommendations for lagging. 6.3 .2...

Ngày tải lên: 28/09/2014, 23:26

... Four-core mm 2 mm 2 mm 2 mm 2 mm 2 mm 2 mm 2 mm 2 1.5 2. 5 4 6 10 15 17 19 22 26 16 19 20 23 39 17 20 22 36 42 19 22 25 40 46 — — — — — — — — — — — — — — — 16 25 35 50 70 95 120 150 185 24 0 300 42 42 60 68 80 113 125 138 191 21 5 23 5 45 62 68 78 90 128 141 20 1 22 0 25 0 26 9 50 70 78 90 131 147 20 6 23 0 25 5 28 9 319 72 88 100 144 1...

Ngày tải lên: 28/09/2014, 23:27