Tiêu chuẩn Việt Nam 6259 docx

tiu chuán viẻt nam tcvn 6259 -8 : 2003 qui phm phàn cảp vĂ ẵĩng tĂu bièn vị thắp phÃn 8B t¡u cáng trÖnh v¡ s¡ lan chuyÅn dïng Rules for the Classification and Construction of Sea-going Steel Ships Part 8B Work-ships and Special Purpose Barges chừỗng 1.1 Qui ½Ùnh chung 1.1.1 qui ½Ùnh chung Ph−m vi Ÿp dòng Qui ½Ùnh Ph·n n¡y Ÿp dịng cho vºt liẻu, hĂn, tẽnh ọn ẵnh, kặt cảu vị, trang thiặt b, cc my, trang b ẵiẻn, phíng vĂ pht hiẻn chy, hẻ thõng dp chy, phừỗng tiẻn thot nn vĂ m−n cða cŸc t¡u cáng trÖnh v¡ cŸc s¡ lan chuyn dùng, v.v , ngoĂi cc yu cÃu ẵơ nÅu cŸc ph·n khŸc CŸc t¡u cáng trÖnh, s¡ lan chuyn dùng, v.v (sau ẵày gi tt lĂ Phừỗng tiẻn) lĂ cc kặt cảu nọi bng thắp thỳc hiẻn cŸc ho−t ½ỉng mang tÏnh ½´c thï riÅng, nhõng kháng thừộng xuyn chờ hĂng hoc lĂ cc phừỗng tiẻn ẵừỡc ½Ùnh vÙ t−i vïng biÌn nh¶t ½Ùnh théi gian dĂi hay bn cõ ẵnh õi vối cc phừỗng tiẻn cĩ trang b hẻ thõng ẵnh v theo yu cÃu ca PhÃn nĂy, kẽ hiẻu cảp s cĩ thm dảu hiẻu phù hỡp vối kièu hẻ thõng ẵnh v ca phừỗng tiẻn 1.1.2 Xem xắt cc phừỗng tiẻn ring biẻt õi vối cc phừỗng tiẻn mĂ cỏng dũng ca chợng khc so vối cc qui ẵnh phÃn nĂy thệ kặt cảu vị, trang thiặt b s ẵừỡc p dũng cc tiu chuán ring biẻt phù hỡp vối cỏng dũng ca chợng qua sỳ thịa thun vối ng kièm tững trừộng hỡp cũ thè 1.1.3 Thay thặ từỗng ẵừỗng ng kièm cĩ thè chảp nhn viẻc thay ẵọi kặt cảu, trang thiặt b, cc my vĂ cch bâ trÏ chỵng cđng nhõ kÏch thõèc khŸc so vèi cc qui ẵnh ca phÃn nĂy vối ẵiậu kiẻn lĂ cc kặt cảu, trang thiặt b, cc my nĂy vĂ cŸch bâ trÏ cđng nhõ kÏch thõèc cða chỵng l¡ từỗng ẵừỗng so vối cc yu cÃu ca PhÃn nĂy 1.1.4 Qui ½Ùnh qc gia ‡¯ng kiÌm cÜ thÌ ½õa cŸc qui ½Ùnh riÅng theo yÅu c·u cða chÏnh ph nỗi tĂu mang cộ hoc chẽnh ph quõc gia cĩ ch quyận nỗi phừỗng tiẻn hot ẵổng 1.1.5 Hó sỗ vậ cc thỏng sõ thiặt kặ õi vối cc phừỗng tiẻn ng kièm phàn cảp, cc thỏng sõ thiặt kặ nhừ chiậu sàu vùng nừốc hot ẵổng, chiậu cao sĩng,v.v , thiặt kặ cho phừỗng tiẻn ẵĩ sÁ ½õìc ghi v¡o Sä ½¯ng kû tcvn 6259 -8B : 2003, Chừỗng 1.2 Cc ẵnh nghỉa 1.2.1 Ph−m vi Ÿp dịng CŸc thuºt ngù v¡ kû hiỴu dùng chung ẵơ ẵừỡc ẵừa Chừỗng ca Ph·n 1A - TCVN 6259 -1 :2003; 1.1.6 cða Ph·n - TCVN 6259 -3 :2003 ; 1.1.6 cða Ph·n - TCVN 6259 -4 :2003 v¡ 1.1.3 cða Ph·n - TCVN 6259 -5 :2003 Trong ph·n 1.2 n¡y ẵừa cc ẵnh nghỉa sau 1.2.2 Loi phừỗng tiẻn Cc phừỗng tiẻn ẵừỡc phàn thĂnh hai nhĩm sau ẵày phũ thuổc vĂo loi ca chợng: Phừỗng tiẻn dng tĂu Phừỗng tiẻn dng tĂu lĂ phừỗng tiẻn dng tĂu biÌn cÜ mỉt hay nhiËu lèp vÞ, kiÌu mỉt, hai hay ba thàn, ẵừỡc thiặt kặ hay hon căi ẵè hot ẵổng trng thi nọi Phừỗng tiẻn thuổc dng nĂy cĩ hẻ thõng ẵổng lỳc - thiặt b ẵáy Phừỗng tiẻn dng sĂ lan Phừỗng tiẻn dng sĂ lan lĂ phừỗng tiẻn cĩ mổt hay nhiậu lốp vị, ẵừỡc thiặt kặ hay hon căi ẵè hot ẵổng trng thi nọi Phừỗng tiẻn thuổc dng nĂy khỏng cĩ hẻ thõng ẵổng lỳc - thiặt b ẵáy 1.2.3 Cỏng dũng ca phừỗng tiẻn Cc phừỗng tiẻn ẵừỡc phàn loi thĂnh nhĩm sau ẵày cn cử vĂo cỏng dũng cða chỵng T¡u cáng trƯnh T¡u cáng trƯnh l¡ phừỗng tiẻn nhừ cc tĂu hợt, tĂu cuõc, cÃn cáu nọi thỳc hiẻn cc hot ẵổng ẵừỡc ẵnh sn trn biÌn Tr−m näi câ ½Ùnh Tr−m näi câ ½Ùnh lĂ phừỗng tiẻn ẵừỡc dùng cho nhựng mũc ẵẽch ẵc biỴt, cÜ hai hay nhiËu boong ho´c cŸc kháng gian kẽn dùng ẵè chửa hĂnh khch SĂ lan chặ biặn SĂ lan chặ biặn lĂ phừỗng tiẻn ẵừỡc trang b cc thiặt b chặ biặn cỏng nghiẻp, ẵừỡc ẵnh v, chng buổc làu dĂi hoc bn cõ ẵnh trng thi nọi ti vùng hot ẵổng ca chợng S¡ lan dïng ½Ì ê S¡ lan dïng ½Ì ê lĂ phừỗng tiẻn khỏng cĩ hẻ thõng ẵổng lỳc - thiặt b ẵáy, cĩ cc phíng cho cc nhàn viÅn chuyÅn mán ho´c h¡nh khŸch Lo−i n¡y neo ½ºu t−i cŸc vïng nõèc yÅn tØnh hay cŸc vïng biÌn cĩ ẵiậu kiẻn từỗng tỳ, ngoĂi di chuyèn kháng cÜ mỉt trÅn s¡ lan, tr÷ thun viÅn l¡m cáng viỴc di chun s¡ lan C·u t¡u nọi CÃu tĂu nọi lĂ phừỗng tiẻn cĩ thiặt b chng buổc, thiặt b lĂm hĂng,v.v , dùng ẵè bõc dở hĂng vĂ cĩ cÃu dạn ẵè nõi vối Lo−i n¡y ½ºu bŸn câ ½Ùnh hay théi gian d¡i ê tr−ng thŸi näi t−i vïng ho−t ½ỉng cða chợng Cc dng khc Cc dng khc ca phừỗng tiẻn lĂ cc phừỗng tiẻn khc so vối dng phừỗng tiẻn ẵơ nu cc mũc tữ -1 ẵặn 1.2.4 Cc kièu hot ẵổng ca phừỗng tiẻn Kièu hot ẵổng ca phừỗng tiẻn lĂ trng thi hay cch thửc phừỗng tiẻn hot ẵổng hoc thỳc hiẻn cc chửc nng ca chợng ti nỗi lĂm viẻc hay trn ẵừộng hĂnh trệnh Trong PhÃn nĂy, cc kièu hot ẵổng ẵừỡc duyẻt ca phừỗng tiẻn ẵừỡc ẵnh nghỉa nhừ sau : (1) Tr−ng thŸi ho−t ½ỉng bƯnh thõéng : tcvn 6259 -8B : 2003, Chừỗng Trng thi hot ẵổng bệnh thừộng lĂ trng thi mĂ phừỗng tiẻn ẵang v trẽ lĂm viẻc vĂ tăi trng tc dũng ln phừỗng tiẻn bao góm tăi trng lĂm viẻc vĂ tăi trng mỏi trừộng, bng tăi trng thiặt kặ tẽnh ton cho tr−ng thŸi ho−t ½ỉng n¡y (2) Tr−ng thŸi théi tiặt khc nghiẻt Trng thi mĂ phừỗng tiẻn chu tc ẵổng ca cc tăi trng mỏi trừộng khc nghiẻt nhảt mĂ phừỗng tiẻn ẵừỡc thiặt kặ Do ẵiậu kiẻn tăi trng ca mỏi trừộng khc nghiẻt nĂy, phừỗng tiẻn s khỏng tiặp tũc thỳc hiẻn cc hot ẵổng bệnh thõéng (3) Tr−ng thŸi h¡nh trÖnh Tr−ng thŸi m¡ ẵĩ phừỗng tiẻn di chuyèn tữ mổt vùng ẵa lỷ nĂy sang mổt vùng khc mĂ khỏng thỳc hiẻn bảt kü mỉt ho−t ½ỉng n¡o khŸc cho mịc ½Ïch sø dũng ca phừỗng tiẻn (4) Trng thi chng buổc tm thội Trng thi ẵĩ phừỗng tiẻn ẵừỡc chng buổc tm thội trng thi nọi 1.2.5 Chiậu dĂi phừỗng tiẻn (L) õi vối phừỗng tiẻn dng sĂ lan, chiậu dĂi lĂ khoăng cch tẽnh bng mắt ẵo ti ½õéng nõèc chê h¡ng mïa h¿ giùa m´t cða tảm tỏn vị ti ẵÃu vĂ ẵuỏi phừỗng tiẻn õi vối phừỗng tiẻn dng tĂu, chiậu dĂi lĂ khoăng cch tẽnh bng mắt ẵo ti ẵừộng nừốc chờ hĂng mùa h tữ mắp trừốc ca sõng mủi ẵặn tàm cða trịc lŸi, ho´c 96% chiËu d¡i cða ½õéng nõèc chờ hĂng mùa h, lảy gi tr nĂo lốn hỗn NỈu t¡u kháng cÜ bŸnh lŸi, chiËu d¡i sÁ l¡ 96% chiËu d¡i cða ½õéng nõèc chê h¡ng mïa h¿ 1.2.6 Chiậu rổng phừỗng tiẻn (B) õi vối phừỗng tiẻn dng tĂu vĂ sĂ lan, chiậu rổng lĂ khoăng cch lốn nhảt ẵo theo phừỗng nm ngang, tẽnh bng mắt, giựa hai mắp ngoĂi ca sừộn ti phÃn thàn cĩ chiËu rỉng lèn nh¶t 1.2.7 ChiËu cao m−n (D) ‡âi vối phừỗng tiẻn dng tĂu vĂ sĂ lan, chiậu cao mn lĂ khoăng cch thng ẵửng, tẽnh bng mắt, tữ mắp trn ca tỏn ẵy ẵặn mắp trn ca xĂ ngang boong cao nhảt lin tũc, ẵo ti mn, giùa chiËu d¡i L 1.2.8 ‡õéng nõèc chê h¡ng v¡ ẵừộng nừốc chờ hĂng thiặt kặ lốn nhảt (1) ừộng nừốc chờ hĂng lĂ ẵừộng nừốc từỗng ửng vối tững chiậu cao mn khỏ ẵừỡc thiặt kặ phù hỡp vối cc ẵiậu khoăn ca Chừỗng thuổc PhÃn nĂy (2) ừộng nừốc chờ hĂng thiặt kặ lốn nhảt lĂ ẵừộng nừốc từỗng ửng vối trng thi ẵÃy tăi thiặt kặ 1.2.9 Chiậu sàu mỳc nừốc thiặt kặ Chiậu sàu mỳc nừốc thiặt kặ lĂ khoăng cch ẵo theo phừỗng thng ẵửng tẽnh tữ ẵy bièn ẵặn mỳc nừốc thảp nhảt thỳc tặ kè că chiậu cao ca thy triậu tÏnh theo lÙch thðy triËu 1.2.10 Tràng lõìng t¡u kháng Trng lừỡng tĂu khỏng lĂ trng lừỡng toĂn bổ phừỗng tiẻn tẽnh bng tản, kè că cc my, trang thiặt b lp ẵt cõ ẵnh trn phừỗng tiẻn, bao góm că trng lừỡng dn cửng, phũ tùng dỳ trự thừộng xuyn trn phừỗng tiẻn, cc chảt lịng nm cc my vĂ ẵừộng õng mửc lĂm viẻc bệnh thừộng ca chợng, trữ trng lừỡng hĂng hĩa, cc chảt lịng cŸc kho chưa ho´c cŸc k¾t dú trù, cŸc trng lừỡng thay ẵọi sứ dũng, lừỗng thỳc dỳ trù, tràng lõìng thuyËn viÅn v¡ h¡nh lû tcvn 6259 -8B : 2003, Chừỗng 1.2.11 Nhiẻt ẵổ lĂm viẻc thiặt kặ ca vt liẻu chặ to phừỗng tiẻn LĂ nhiẻt ẵổ thảp nhảt ca nhiẻt ẵổ khỏng khẽ trung bƯnh h¡ng ng¡y, c¯n cư v¡o sâ liỴu cða tháng bŸo khÏ tõìng cho b¶t kü mỉt khu vúc hot ẵổng ẵnh trừốc nĂo ca phừỗng tiẻn Nặu khỏng cĩ cc sõ liẻu nhừ vy thệ nhiẻt ẵổ trung bệnh thảp nhảt hĂng thng s ẵừỡc coi lĂ nhiẻt ẵổ lĂm viẻc ca vt liẻu chặ to phừỗng tiẻn 1.2.12 KÏn théi tiỈt KÏn théi tiỈt nghØa l¡ bảt kỹ trng thi nĂo ca thội tiặt bièn, nừốc khỏng thè lt vĂo phừỗng tiẻn ẵừỡc 1.2.13 Kẽn nừốc Tẽnh kẽn nừốc ca cỗ cảu lĂ khă nng khỏng cho nừốc ẵi qua cỗ cảu theo bảt kỹ hõèng n¡o dõèi tŸc dịng cða chiËu cao cỉt nõèc dùng ẵè thiặt kặ cỗ cảu ẵĩ 1.2.14 VĂo nừốc VĂo nừốc lĂ hiẻn từỡng nừốc trĂn vĂo bảt kỹ mổt khoang kẽn nĂo ca phừỗng tiẻn qua cc lồ khoắt khỏng kẽn nừốc hay khỏng kẽn thội tiặt ho´c cŸc lå vƯ lû vºn h¡nh kháng ½õìc ½Üng 1.2.15 Tr−m ½iËu khiÌn Tr−m ½iËu khiÌn l¡ kháng gian ẵt thiặt b thỏng tin lin lc, thiặt b hĂnh hăi chẽnh hoc nguón ẵiẻn sỳ cõ ca phừỗng tiẻn củng nhừ ẵt cc băng ẵiậu khièn thiặt b ẵnh v hay chình từ thặ ca phừỗng tiẻn, ẵt thiặt b ẵiậu khièn trung tàm pht hiẻn chy vĂ thiặt b bo chy ca phừỗng tiẻn 1.2.16 Khu vỳc nguy hièm Khu vỳc nguy hièm lĂ tảt că cc khu vúc cÜ cŸc khÏ dÍ chŸy phŸt sinh t÷ cc hot ẵổng ca cc my vĂ thiặt b ẵiẻn chừa ẵừỡc xem xắt mổt cch thịa ẵng cĩ thè dạn ẵặn nguy cỗ chy hoc 1.2.17 Khu vỳc an to¡n Khu vúc an to¡n l¡ cŸc khu vúc khỏng phăi lĂ cc khu vỳc nguy hièm 1.2.18 Khỏng gian kÏn Kháng gian kÏn l¡ kháng gian ½õìc bao bàc bêi cŸc vŸch v¡ boong m¡ trÅn chỵng cÜ thÌ cÜ cŸc cøa v¡o, cøa sä, ho´c cŸc lồ khoắt từỗng tỳ 1.2.19 Khỏng gian bn kẽn Khỏng gian bn kẽn lĂ khỏng gian cĩ ẵiậu kiẻn thỏng giĩ tỳ nhin khc so vối cc ẵiậu kiẻn thỏng giÜ trÅn boong trâng sú cÜ m´t cða cŸc kặt cảu nhừ cc mi che, chn giĩ hay cc vch vĂ cc kặt cảu ẵừỡc lp ẵt cho sỳ phàn tn ca cc khẽ d chy khỏng xăy 1.2.20 Trang thiặt b hay cc my ẵăm băo an toĂn cho phừỗng tiẻn Trang thiặt b hay cc my ẵăm băo an toĂn cho phừỗng tiẻn lĂ trang thiặt b hay cc my ẵừỡc liẻt k tữ (1) ẵặn (10) sau ẵày : (1) Cc my phũ dùng cho viẻc ẵiậu ẵổng phừỗng tiẻn vĂ ẵăm băo an to¡n ½õìc ½Ë cºp t−i 1.1.6 Ph·n TCVN 6259 -3 :2003 (2) HỴ thâng ch±ng bc (3) HỴ thâng nàng (4) Hẻ thõng chiặu sng 10 tcvn 6259 -8B : 2003, Chừỗng (5) Hẻ thõng thỏng tin lin lc trn toĂn phừỗng tiẻn (6) Hẻ thõng chựa chy (7) Hẻ thõng vỏ tuyặn (8) Hẻ thõng hĂnh hăi (9) Hẻ thõng cảp nừốc vĂ hẻ thõng ẵõt ca nói hỗi cung cảp hỗi cho bảt kỹ hẻ thõng nĂo tữ (1) ẵặn (8), nặu cĩ (10) Hẻ thõng khc nặu ng kièm thảy cÃn thiặt 1.2.21 Phừỗng tiẻn cĩ vùng hot ẵổng hn chặ Phừỗng tiẻn cĩ vùng hot ẵổng hn chặ lĂ phừỗng tiẻn mĂ khu vỳc hot ẵổng hay tuyặn ẵừộng hĂnh trệnh ca chợng ẵừỡc gièi h−n cŸc vïng biÌn ven bé, vïng nõèc yn tỉnh hay cc vùng cĩ ẵiậu kiẻn từỗng tỳ, v¡ sÁ ½õìc ghi v¡o Sä ½¯ng kû t¡u vèi kỷ hiẻu Vùng hot ẵổng hn chặ I, Vùng hot ½ỉng h−n chỈ II” hay “Vïng ho−t ½ỉng h−n chỈ III 1.2.22 Phừỗng tiẻn tỳ hĂnh Phừỗng tiẻn tỳ hĂnh lĂ phừỗng tiẻn tỳ thỳc hiẻn cc di chuyèn mĂ khỏng cÃn bảt cử mổt sỳ giợp ẵở nĂo khc tữ bn ngoĂi 1.2.23 TĂi liẻu hừống dạn sứ dũng TĂi liẻu hừống dạn sứ dũng phăi bao góm cc thỏng tin ch yặu ẵng tin cy sau ẵày ẵè trang b cc hừống dạn cÃn thiặt cho cc nhàn vin hĂnh nhm ẵăm băo sứ dũng an toĂn cho phừỗng tiẻn : (1) Cc chì dạn chung vậ phừỗng tiẻn ; (2) Cc sõ liẻu chẽnh cho mồi trng thi hot ẵổng, bao góm că tăi trng thiặt kặ vĂ cc tăi trng khc, tệnh trng ca mỏi trừộng, chiậu cao mn v.v (3) Nhiẻt ẵổ thảp nhảt cða nõèc biÌn v¡ kháng khÏ thiỈt kỈ ; (4) Bâ trÏ chung nÅu rß cŸc khoang kÏn nõèc, cc thiặt b ẵĩng kẽn, thỏng giĩ, tăi trng giă ½Ùnh cða boong tÏnh toŸn, v.v (5) CŸc ½õéng cong thy lỳc hoc cc sõ liẻu từỗng ẵừỗng ; (6) Dung tẽch khoang kắt nu rò dung tẽch cc kắt, trng tàm kắt vĂ hiẻu chình ănh hừờng mt thong chảt lịng kắt, v.v (7) Cc hừống dạn sứ dũng, bao góm că cc biẻn php phíng trnh thội tiặt xảu, thay ẵọi trng thi hot ẵổng, bảt kỹ mổt hn chặ thừộng xuyn nĂo vậ sứ dũng, v.v (8) Cc băn v vĂ giăi thẽch vậ hẻ thõng dn vĂ hừống dạn dn Nặu l¡ d±n cưng thƯ tràng lõìng, vÙ trÏ cđng nhõ chảt lĂm vt dn phăi ẵừỡc nu rò ; (9) Sỗ ẵó hẻ thõng õng chuyèn dÃu ẵõt ; (10) Băn v cc khu vỳc nguy hièm ; (11) Băn v hừống dạn chõng chy ; (12) Băn v bâ trÏ thiỈt bÙ cưu sinh v¡ cŸc lâi thoŸt n−n ; (13) CŸc sâ liỴu vË t¡u kháng, c¯n cử vĂo kặt quă thứ nghing, v.v (14) Thỏng bŸo än ½Ùnh ; (15) CŸc vÏ dị ½´c trõng cho cc trng thi tăi trng mồi dng hot ẵổng ca phừỗng tiẻn ẵơ ẵừỡc duyẻt vối phừỗng php ẵè tẽnh ton cho cc trng thi tăi trng khc ; (16) Sỗ ẵó hẻ thõng chng buổc chẽnh vĂ dỳ phíng ; (17) Chi tiặt cc biẻn php ngt khán cảp thiặt b ẵiẻn ; (18) Cc nhn d−ng dïng cho mŸy bay lÅn th²ng thiỈt kỈ boong mŸy bay lÅn th²ng ; 11 tcvn 6259 -8B : 2003, Chừỗng (19) Hừống dạn sứ dũng ca hẻ thõng neo vĂ chng buổc phừỗng tiẻn ; (20) Cc hừống dạn sứ dũng hẻ thõng ẵnh v thy lỳc ; (21) Cc hừống dạn khc nặu ng kièm thảy cÃn thiặt ; (22) Cc hừống dạn khc nặu ng kièm thảy cÃn thiặt 12 tcvn 6259 -8B : 2003, Chừỗng Chừỗng 2.1 Qui ẵnh chung 2.1.1 vt liẻu vĂ hĂn Qui ẵnh chung Thắp cn, thắp ẵợc, thắp rn,v.v , dùng chặ to kặt cảu, trang thiặt b,v.v , phăi thịa mơn cc yu c·u cða Ph·n 7A - TCVN 6259 -7 :2003 Trang thiặt b phăi thịa mơn cc yu cÃu ca Ph·n 7B - TCVN 6259 -7 :2003 CŸc qui ẵnh lin quan ẵặn viẻc hĂn nhừ phừỗng php hĂn, vt liẻu hĂn, thỡ hĂn vĂ trệnh ẵổ ca h phăi thịa mơn cc yu cÃu ca PhÃn - TCVN 6259 -6 :2003 Vt liẻu, phừỗng php hĂn,v.v , cÜ ½´c tÏnh khŸc so vèi cŸc lo−i ½õìc ch× Ph·n n¡y, Ph·n 7A; 7B v¡ cĩ thè ẵừỡc sứ dũng nặu nhừ cc thỏng sõ chi tiặt vĂ mũc ẵẽch sứ dũng chợng ẵừỡc ng kiÌm ch¶p nhºn Trong trõéng hìp n¡y, cŸc tháng sâ chi tiặt lin quan ẵặn qu trệnh săn xuảt, cch sứ dũng,v.v , ca cc loi ẵơ nĩi trn phăi trệnh ng kièm ẵè duyẻt 2.2 Vt liẻu 2.2.1 Qui ẵnh chung Cc loi thắp cn ẵừỡc ẵừa ti Băng 8B/2.1 hoc thắp cn cĩ ẵổ bận từỗng ẵừỗng Khi dùng thắp cn, hẻ sõ vt liẻu (k) cho tững loi thắp từỗng ửng vối sửc bận kắo ca chợng ẵừỡc ẵừa ti Băng 8B/2.2 p dũng cc loi thắp cho tững loi kặt cảu vị ca phừỗng tiẻn ẵừỡc ẵừa ti Băng 8B/6.1 ẵặn 8B/6.4 Khi nhiẻt ẵổ lĂm viẻc ca vt liẻu thảp hỗn -50oC vĂ chiậu dÃy ca tảm thắp vừỡt qu 70 mi-li-mắt thệ cc tảm thắp ẵừỡc dùng phăi ẵừỡc ng kièm xem xắt ring Băng 8B/2.1 Loi thắp Thắp thừộng Thắp cĩ ẵổ bận cao Thắp cĩ ẵổ bận cao ẵừỡc tỏi vĂ nhợng Loi thắp cn dùng cho kặt cảu phừỗng tiẻn Kỷ hiẻu qui ẵnh t−i Ph·n 7A A B D E A 32, A 36, A 40 D 32, D 36, D 40 E 32, E 36, E 40 F 32, F 36, F 40 A 43, A 47, A51 A 56, A 63, A 70 D 43, D 47, D 51 A 56, D 63, D 70 E 43, E 47, E51 E 56, E 63, E 70 F 43, F 47, F 51 F 56, F 63, F 70 Kû hiỴu qui ½Ùnh t−i Ph·n n¡y A B D E AH DH EH FH AQ AQ DQ DQ EQ EQ FQ FQ 13 tcvn 6259 -8B : 2003, Chừỗng Vt liẻu chặ t−o neo, cŸp th¾p, xÏch neo, cŸp thúc vºt,v.v , ẵè chng buổc phừỗng tiẻn thội gian dĂi phăi thịa mơn cc yu cÃu ca ng kièm 2.3 HĂn 2.3.1 H¡n dõèi nõèc Thì h¡n thúc hiỴn cŸc cáng viẻc hĂn dừối nừốc phăi lĂ nhựng ngừội ẵơ qua kü thi sŸt h−ch tay nghË ½õìc ‡¯ng kiÌm cáng nhn Băng 8B/2.2 Loi thắp Thắp thừộng Thắp cĩ ẵổ bận cao Thắp cĩ ẵổ bận cao tỏi vĂ nhợng Chợ thẽch : 14 Hẻ sõ vt liẻu (k) từỗng ưng vèi gièi h−n bËn Kû hiỴu vºt liỴu A, B, D, E A 32, D 32, E 32, F 32 A 36, D 36, E 36, F 36 A 40, D 40, E 40, F 40 A 43, D 43, E 43, F 43 A 47, D 47, E 47, F 47 A 51, D 51, E 51, F 51 A 56, D 56, E 56, F 56 A 63, D 63, E 63, F 63 A 70, D 70, E 70, F 70 (∗) Theo û kiỈn cða ‡¯ng kiÌm HỴ sâ (k) 1,00 0,78 0,72 ∗ ∗ ∗ ∗ ∗ ∗ ∗ tcvn 6259 -8B : 2003, Chừỗng Chừỗng 3.1 Qui ẵnh chung 3.1.1 tăi trng thiặt kặ Qui ẵnh chung Nặu khỏng cĩ qui ẵnh nĂo khc, cc tăi trng nu tữ (1) ẵặn (14) sau ẵày s ẵừỡc dùng ẵè xc ẵnh kẽch thừốc cỗ cảu vĂ tẽnh ton lỳc chng buổc ẵè ẵnh v phừỗng tiẻn, nặu p dũng (1) Tăi trng giĩ ; (2) Tăi trng sĩng ; (3) Tăi trng trn boong ; (4) Tăi trng my bay ln thng ; (5) Cc tăi trng tỉnh nhừ p lỳc nừốc phừỗng tiẻn nọi trn nừốc tỉnh, lỳc nọi, trng tăi,v.v (6) Tăi trng díng chăy vĂ thy triậu ; (7) Tăi trng bng nọi ; (8) Tăi trng tuyặt vĂ bng ẵng trn phừỗng tiẻn ; (9) Tăi trng chng buổc ẵnh v phừỗng tiẻn ; (10) Tăi trng ch±ng bc vèi cŸc t¡u cung ưng ; (11) Tăi trng ẵừỡc kắo ; (12) Tăi trng cc hot ẵổng ca phừỗng tiẻn to ; (13) Tăi trng tng lỳc ca nừốc gày bời cc sinh vt bièn bm vĂo phừỗng tiẻn ; (14) Cc tăi trng khc nặu cÃn thiặt Cc tiu chuán thiặt kặ ca cc tăi trng tc ẵổng ln phừỗng tiẻn vĂ cc cỗ cảu ca chợng phăi cn cử vĂo cc sõ liẻu thõng k vĂ nghin cửu cc trng thi nguy hièm nhảt giă ẵnh théi gian Ït nh¶t l¡ 50 n¯m ‡âi vèi cc phừỗng tiẻn lĂm kho chửa cĩ kẽch thừốc lốn hay cc phừỗng tiẻn tỉnh ti, v.v mĂ theo û kiỈn cða ‡¯ng kiÌm l¡ c·n thiỈt thƯ théi gian trÅn cÜ thÌ l¡ 100 n¯m Ngo¡i cŸc yu cÃu nu -2 trn, nặu tẽnh ẵặn mũc ½Ïch sø dịng, théi gian sø dịng v¡ nỈu ½õìc ng kièm chảp nhn thệ cĩ thè sứ dũng tăi trng thiặt kặ tc ẵổng ln phừỗng tiẻn trừộng hỡp tăi trng giă ẵnh nguy hièm nhảt ch tĂu ẵừa 3.2 Tăi trng thiặt kặ 3.2.1 Qui ½Ùnh chung Nhùng yÅu c·u ê 3.2 n¡y qui ½Ùnh cc phừỗng php ch yặu ẵè tẽnh ton tăi trng thiặt kặ Trong trừộng hỡp phừỗng php tẽnh ton tăi trng thiặt kặ chừa ẵừỡc ẵậ cp ẵặn hoc că ẵơ ẵừỡc ẵừa ra, thệ cĩ thè sứ dũng phừỗng php thẽ nghiẻm trn mỏ hệnh thẽch hỡp, thø b±ng âng khÏ ½ỉng hàc, thø b±ng bÌ thø hay cc phừỗng php tẽnh ton theo lỷ thuyặt ẵừỡc ng kièm chảp nhn ẵè tẽnh ton tăi trng thiặt kặ cho phừỗng tiẻn bièn 3.2.2 Tăi trng giĩ Tõc ẵổ giĩ tẽnh ton tăi trng thiặt kặ cĩ thè Ch tĂu qui ẵnh, nhừng khỏng ẵừỡc nhị hỗn 25,8 mắt/giày Tuy nhin, tõc ẵổ giĩ thiặt kặ cho cc phừỗng tiẻn cĩ vùng hot ẵổng khỏng hn chặ vĂ hot ẵổng 15 tcvn 6259 -8B : 2003, Chừỗng ngoĂi khỗi khỏng ẵừỡc nhị hỗn 36 mắt/giày cho trng thi hot ẵổng bệnh thừộng vĂ khỏng nhị hỗn 51,5 mắt/giày ẵiậu kiẻn thội tiặt khc nghiẻt p suảt giĩ P ẵừỡc xc ẵnh theo cáng thöc sau : P = 0,611 Ch Cs V2 (N/m2) V : Tâc ½ỉ giÜ tÏnh theo -1 (m/giày) Ch : Hẻ sõ chiậu cao tàm hửng giĩ qui ẵnh ti Băng 8B/3.1, cn cử vĂo chiậu cao tàm hửng giĩ theo phừỗng thng ẵửng, tẽnh bng mắt, ti v trẽ ẵang xắt Chiậu cao tàm hửng giĩ lĂ khoăng cch thng ẵửng tẽnh tữ mt bièn ẵặn trng tàm mt hửng giĩ A ẵừỡc qui ẵnh ti -3 dừối ẵày Cs : Hẻ sõ hệnh dng lảy theo Băng 8-B/3.2 phũ thuổc vĂo hệnh dng ca cc thĂnh phÃn kặt cảu hửng giĩ Băng 8B/3.1 Hẻ sõ chiËu cao tµm hưng giÜ Ch ChiËu cao tµm hưng giĩ (m) Khỏng nhị hỗn Nhị hỗn 15,3 30,5 15,3 46,0 30,5 61,0 46,0 76,0 61,0 91,5 76,0 106,5 91,5 122,0 106,5 137,0 122,0 152,5 137,0 167,5 152,5 183,0 167,5 198,0 183,0 213,5 198,0 228,5 213,5 244,0 228,5 259,0 244,0 259,0 Băng 8B/3.2 Ch 1,00 1,10 1,20 1,30 1,37 1,43 1,48 1,52 1,56 1,60 1,63 1,67 1,70 1,72 1,75 1,77 1,79 1,80 Hẻ sõ hệnh dng Cs Kặt cảu Cs Kặt cảu dng hệnh cÃu Kặt cảu dng hệnh trũ Thàn phừỗng tiẻn LÃu trn boong Kặt cảu ẵửng ring lÀ trÅn boong ( c·n c¸u, cŸc d·m x¡, v.v ) CŸc ph·n nhá phÏa dõèi cða s¡n (cÜ bË mt trỗn tru) Cc phÃn nhỏ phẽa dừối ca sĂn (ph·n nhá cða x¡ ngang, cða cŸc sâng ) CŸc tr−m cáng tŸc (t÷ng bË m´t) Lúc giÜ F khỏng ẵừỡc nhị hỗn tr sõ tẽnh theo cỏng thửc sau ẵày ẵõi vối tững bổ phn kặt cảu, ngoĂi ra, hỡp lỳc vĂ ẵièm ẵt lỳc phăi ẵừỡc tẽnh cho tững hừống giĩ F=PìA 16 0,4 0,5 1,0 1,0 1,5 1,0 1,3 1,25 (N) TCVN 6259 -8B: 2003, Chapter 12 (a) Devices to operate the watertight doors required by 5.2.2, but not necessarily all of them simultaneously, unless an independent temporary source of stored energy are provided (b) Control devices and indicators required by 5.2.2 68 TCVN 6259 -8B: 2003, Chapter 13 Chapter 13 13.1 MACHINERY INSTALLATIONS, ELECTRICAL INSTALLATIONS, AND SO ON IN HAZARDOUS AREAS General 13.1.1 Scope For machinery installations, electrical installations, and so on installed in hazardous areas, requirements in this Chapter are to be applied 13.1.2 General Hazardous areas as specified in 13.1.3 may be extended or reduced depending on the actual arrangements in each case, by use of windshields, special ventilation arrangements, structural arrangements, etc 13.1.3 Hazardous areas Storage units (1) Hazardous areas for the storage unit which stores oils having a flashpoint of 60 0C and under are, at least, to be as listed in the following (a) to (j): (a) Storage oil tanks (b) Enclosed spaces and semi-enclosed spaces adjacent to storage oil tanks The spaces which adjoin to the storage oil tanks by point-contact or line-contact are to be included (c) Storage oil pump rooms (d) Enclosed spaces and semi-enclosed spaces to which cargo pipes are fitted (e) Compartments in which cargo hoses are housed (f) Open areas and semi-enclosed spaces within m away from the openings of storage oil tanks (g) Areas from m above the openings of vapour pipes to the deck (h) Open areas 2.4 m high above the exposed deck (the outer surface of the storage oil tank in case where the surface is above the exposed deck) and to m outside the outer surface of the storage oil tank (i) Open areas and semi-enclosed spaces within m apart from entrances and ventilation outlets of the spaces specified in (b) to (e) (j) Enclosed spaces and semi-enclosed spaces which have direct openings to the spaces or areas as are specified in (a) to (i) (2) Hazardous areas for the storage unit which stores oils having a flashpoint exceeding 60 deemed appropriate by VR C are to be Units which are engaged in works with danger of a fire or an explosion For hazardous areas for the unit which is engaged in works with danger of a fire or an explosion, requirements in -1 or -2 or requirements for tankers are to be correspondingly applied 13.2 Ventilation systems 13.2.1 Storage units Large sized storage units (1) Except compartments used as tanks, the compartments adjacent to a storage oil tank are to be provided with effective ventilation systems (2) Storage oil pump rooms are to be provided with exhaust-type mechanical ventilation systems in accordance with the requirements in the following (a) to (d): (a) To have ventilating capacity of 20 times or more per hour for the total volume of the pump room 69 TCVN 6259 -8B: 2003, Chapter 13 (b) To arrange openings of exhaust ducts considering not to keep gases stay in part of the pump room (c) Fans are to be constructed so as not to emit sparks (d) Driving motors for fans are to be installed outside the ventilation ducts Where, however, it is unavoidable from arrangement, motors installed in the ventilation ducts may be used In this case, the motors are to be flame-proof and sufficient consideration is to be given to the construction and arrangement of housing of fans so that maintenance and examination are readily made (3) Storage oil tanks are to be provided with ventilation systems necessary for gas-freeing operation in the tanks (4) For a storage unit which stores oils having a flashpoint exceeding 60 0C only, the requirements, in (2) with regard to the ventilating capacity, the construction of fans and arrangement of motors may be properly modified (5) The mechanical ventilating system is to be arranged so as to be stopped from any accessible suitable position in the event of fire at the place where the system is installed or its neighbourhood Other storage units Ventilation systems for storage units other than large sized storage units are to comply with requirements in Chapter 14, Part 13.2.2 Units which are engaged in works with danger of a fire or an explosion For ventilation systems of the unit which is engaged in works with danger of a fire or an explosion, requirements in 13.2.1 or 13.2.2 or requirements for tankers are to be correspondingly applied 13.3 Machinery installations in hazardous areas 13.3.1 General Machinery installations in hazardous areas are to be limited to those essential for operational purposes Machinery installations in hazardous areas are to be so constructed and installed as to reduce the risk of ignition from sparking due to the formation of static electricity or friction between moving parts and from high temperatures of exposed parts due to exhausts or other emissions 13.3.2 Storage units Fired boilers or combustion engines are not to be installed in hazardous areas For air intakes and exhaust pipes for them, they are to be in accordance with the requirements in the following (1) to (4): (1) Exhaust outlets are to be fitted with suitable spark arresting devices (2) The outer surface of the exhaust pipe is to be cooled by water, etc or to be properly insulated (3) Exhaust outlets are to be located outside hazardous areas and as far away from outlets of air pipes of storage oil tanks as practicable (4) Air intakes for the internal combustion engine are not to be hazardous areas 13.3.3 Units which are engaged in works with danger of fire or an explosion For machinery installations of the unit which is engaged in works with danger of a fire or an explosion, requirements in 13.3.2 or requirements for tankers are to be correspondingly applied 13.4 Electrical installations in hazardous areas 13.4.1 General 70 Electrical installations are not to be installed in hazardous areas unless essential for operational purposes Where installation of electrical installations is unavoidable, it is to comply with requirements in this 13.4.1 TCVN 6259 -8B: 2003, Chapter 13 Distribution system (1) Notwithstanding with the requirements in 2.2.1-1, Part 4, the system of power supply is to be one of the followings: (a) Two-wire insulated for D C system (b) Single-phase two-wire insulated for A C system (c) Three-phase three-wire insulated for A C system (2) Notwithstanding the requirement in (1), a hull return distribution system may be used for the systems listed in 2.2.1-2(1) to (3), Part (3) Notwithstanding the requirement in (1), an earthed distribution system may be used for the following systems: (a) Intrinsically safe circuits (b) Power supplies, control circuits and instrumentation circuits where technical or safety reasons preclude the use of a system with no connection to earth, provided the current in the hull is limited to not more than A in both normal and fault conditions (c) Limited and locally earthed systems, provided that any possible resulting current does not flow directly through any dangerous spaces (d) A C power networks of 1000 V root mean square (line to line) and over, provided that any possible resulting current does not flow directly through any dangerous spaces Explosion-protected electrical equipment is to comply with the requirements in 2.16, Part and to be certified that it is safety to use in the explosive gas atmosphere concerned Electrical measuring, monitoring, control and communication apparatuses are to be of intrinsically safe type Where it is, however, impracticable to meet this requirement, electrical equipment of other explosionprotected construction as deemed appropriate by VR may be used Portable lamps are to be of intrinsically safe type, flameproof type with self contained battery or of air-driven type with pressurized enclosure Switch gears installed in feeder circuits for explosion protected electrical equipment in hazardous areas are to be provided with effective means for preventing dangers arising from mis operation, except the intrinsically safe circuits, in addition to the compliance with the requirements in 2.2.12-2, Part Aerials and associated riggings are to be fitted well clear of gas or vapour outlets As a rule, no portable electrical equipment is to be fitted in hazardous areas Where it is unavoidable to locate, it is subjected to the approval of VR Wiring in hazardous areas: (1) Cables are to be one of the followings Where corrosion may be expected, a PVC or chroloprene sheath is to be applied over armour or metallic sheath of cables for corrosion protection (a) Mineral insulated and copper sheathed (b) Lead alloy sheathed and metal armoured (c) Non-metallic sheathed and metal armoured (2) Installation of cables is to comply with the followings: (a) Cables are to be installed as close to the hull centre line as practicable (b) Cables are to be installed sufficiently distant from decks, bulkheads, tanks and various kinds of pipes (c) Cables are to be protected against mechanical damage Further, the cables and their supports are to be fitted in such a manner as to withstand expansion of construction and other effects of the hull structure (d) The penetration part of the cables or cable pipes through decks and bulkheads of the dangerous spaces is to be constructed so as to maintain gas-tightness and liquid-tightness 71 TCVN 6259 -8B: 2003, Chapter 13 (e) When mineral insulated cables are used, special precautions are to be taken to ensure sound terminations (3) Metallic protective coverings of power and lighting cables passing through hazardous areas, or connected to equipment installed in such spaces, are to be earthed at least at each end 13.4.2 Storage units Electrical installations of the storage unit which stores oils having a flashpoint of 60 0C and under are to comply with requirements in the following (1) to (4): (1) Intrinsically safe type electrical equipment and associated cables may be installed in any hazardous areas specified in 13.1.3-1(1) (2) Electrical installations in hazardous areas specified in 13.1.3-1(1)(b) and (c) are to be in accordance with the following (a) to (d): (a) Transducers of navigation instruments such as electric depth sounding devices and associated cables may be installed The transducers are to be of totally enclosed type and to be housed in a gas tight enclosure clear of the storage oil tank Cables to the transducers are to be installed in heavy gauge galvanized steel pipes with gas tight joints up to the main deck (b) Anodes or electrodes of an impressed current cathode protection system (for external hull protection only) and associated cables may be installed In this case, for the anodes or electrodes and cables, the requirements in (1) are to apply (c) Lighting fittings of flameproof type or air-driven type with pressurized enclosure and associated cables may be installed in the areas where apparatus which necessitate operation and monitoring are installed The lighting fittings are to be arranged on at least two independent circuits (d) Cables may be run through these areas The through run cables are to be installed in heavy gauge galvanized steel pipes with gas tight joints (3) Electrical installations in hazardous areas specified in 13.1.3-1(1)(d) and (e) are to be in accordance with the following (a) and (b): (a) Lighting fittings of flame-proof type or air-driven type with pressurized enclosure and associated cables may be installed (b) Cables may be run through these areas The through run cables are to be installed in heavy gauge galvanized steel pipes with gas tight joints (4) For electrical installations installed in hazardous areas specified in 13.1.3-1(1)(j), these areas are to be considered as equivalent to the adjacent hazardous area having direct openings, and the electrical installations are to be in compliance with the relevant requirements in (1) to (4) 13.4.4 Units which are engaged in works with danger of a fire or an explosion For electrical installations of the unit which is engaged in works with danger of a fire or an explosion, requirements in 13.4.2 or 13.4.3 or requirements for tankers are to be correspondingly applied 72 TCVN 6259 -8B: 2003, Chapter 14 Chapter 14 14.1 FIRE PROTECTION AND MEANS OF ESCAPE General 14.1.1 Application Structural fire protection and means of escape provided in the work-ships and special purpose barges are to be in accordance with the requirements in this Chapter Structural fire protection and means of escape provided in the work-ships and special purpose barges are to be in accordance with the requirements of the National Authority of the country in which the unit is to be registered or navigated, in addition to the requirements of this chapter 14.1.2 General The hull, superstructures, structural bulkheads, decks, deckhouses and walls of control station are to be constructed of steel or other equivalent materials The insulation of aluminum alloy components of "A" or "B" class divisions is to be such that the temperature at the structural core does not rise more than 200 C above the ambient temperature at any time during the applicable explosure to the standard fire test, except where they are as deemed appropriate by VR In working areas, paints, varnishes and similar preparations having nitro-cellulose or other highly inflammable bases are not to be used Helicopter decks, if provided, are to be of a steel or other equivalent fire resistant materials If the spaces below the helicopter deck are fire risk spaces, the insulation standard is to be satisfaction of VR 14.2 Units which are engaged in work with danger of a fire or explosion 14.2.1 Application Construction of fire protection and means of escape for the units which are engaged in works with danger of a fire or an explosion are to be applied in 14.2, in addition to comply with the requirements in 14.1.2 For construction of fire protection and means of escape for the units having large embarking capacity, VR requires additional requirements in addition to the requirements in this part 14.2.2 Construction of fire protection The construction of fire protection for the units is to correspondingly comply with the following requirements or the requirements in Chapter 3, Part Bulkheads and decks for the units are to be the divisions respectively specified in Table 8B/14.1 and Table 8B/14.2 according to the spaces adjoining to the relevant bulkheads or decks Exterior boundaries of superstructures and deckhouses enclosing accommodation, are to be constructed to "A-60" standard For determining the appropriate fire integrity standards to be applied to the Tables 8B/14.1 and Table 8B/14.2 required divisions between adjacent spaces, such spaces are classified according to their fire risk, as shown in following categories (1) to (11): (1) Control stations are spaces as defined in 1.2.15, excluding the spaces where emergency sources of power are located (2) Corridor area Corridors mean corridors and lobbies (3) Accommodation spaces are spaces, excluding corridors, lavatories and pantries containing no cocking appliances, which are used for public spaces, cabins, offices, hospitals, cinemas, games and similar spaces 73 TCVN 6259 -8B: 2003, Chapter 14 Public spaces are those portions of the accommodation spaces which are used for halls, dining rooms, lounges and similar permanently enclosed spaces (4) Stairways are enclosed interior stairways, lifts and escalators (other than those wholly contained within the machinery spaces) and enclosures thereto In this connection, a stairway which is enclosed only at one level is to be regarded as part of the space from which it is not separated by a fire door (5) Service spaces with low risk of fire are locker rooms and store rooms not having the storage of flammable liquids and having areas less than m2, drying rooms and laundries (6) Machinery spaces of Category A are the spaces which fall under any one of the following (a) to (c), including trunks to such spaces: (a) Spaces where internal combustion engines for main propulsion are installed (b) Spaces where internal combustion engines used for other purposes than main propulsion, having aggregate power of not less than 375 kW are installed, (c) Spaces which contain oil-fired boilers or oil fuel units (7) Other machinery spaces are all machinery spaces other than machinery spaces of Category A, containing propelling machinery, boilers, oil fuel units, steam and internal combustion engines, generators and major electrical machinery, oil filling stations, refrigerating, stabilizing, ventilating and air-conditioning machinery and similar spaces, including trunks to such spaces (8) Hazardous areas are as defined in 1.2.16 (9) Service spaces with high risk of fire are galleys, pantries containing cooking appliances, paint and lamp rooms, locker rooms and store rooms having areas of m2 or more, spaces for the storage of flammable liquids, and workshops which are not located in the machinery spaces (10) Open decks are open deck spaces, excluding hazardous areas (11) Sanitary and similar spaces are communal sanitary facilities such as baths, lavatories, etc., and isolated pantries containing no cooking appliances Sanitary facilities which serve a space and with access only from that space are to be considered a portion of space in which they are located Continuous "B" Class ceilings or linings in association with the relevant decks or bulkheads may be accepted as contributing wholly or in part to the required insulation and integrity of a division Windows and side scuttles, with the exception of navigating bridge windows, are to be of the non-openting type Navigating bridge windows may be of the opening type provided the design of such windows would permit rapid closure The fire resistance of doors are, as far as practicable, to be equivalent to that the division in which they are fitted External doors in superstructures and deckhouses are to be constructed to "A-0" Class divisions and, where applicable, be self-closing Protection of accommodation spaces, service spaces and control stations specified in 1.2.15 (except the space where the emergency source of electric power is installed, the same being applied the following requirements of this part), is to be in accordance with the requirements in the following (1) to (11): (1) All bulkheads required to be "B" class divisions are to be extended from deck to deck and to the deckhouse side or other boundaries, unless continuous "B" class ceilings or linings are fitted on both sides of the bulkhead, in which case the bulkhead may terminate at the continuous ceiling or linings (2) In corridor bulkheads, ventilation openings may be permitted only in and under the doors of cabins, public spaces, offices and sanitary spaces The openings are to be provided only in the lower half of the door Where such an opening is in or under a door, the total net area of any such opening or openings are not to exceed 0.05 m2 When such an opening is cut in a door it is to be fitted with a grille made of noncombustible material Such openings are not to be provided in a door in a division forming a stairway enclosure (3) Stairs are to be constructed of steel or other material equivalent thereto 74 TCVN 6259 -8B: 2003, Chapter 14 (4) Stairways which penetrate only a single deck are to be protected at least at one level by "A" or "B" class divisions and self-closing doors so as to limit the rapid spread of fire from one deck to another Personnel lift trucks are to be protected by "A" class divisions Stairways and lift trunks which penetrate more than a single deck are to be surrounded by "A" class divisions and protected by self-closing doors at all levels Self-closing doors are not to be fitted with hold-back hooks However, hold-back arrangements incorporating remote release fittings of the fail-safe type may be utilized (5) Air spaces enclosed behind ceilings, panellings or linings are to be divided by close fitting draught stops spaced not more than 14 m apart (6) Except insulation in refrigerated compartments, insulation material, pipe and vent duct lagging, ceiling, lining and bulkheads are to be of non-combustible material Insulation of pipe fittings for cold service systems and vapour barriers and adhesives used in conjunction with insulation need not be noncombustible but they are to be kept to a minimum and their exposed surfaces are to have low-flame spread characteristics In spaces where penetration of oil products is possible, the surface of the insulation are to be impervious to oil or oil vapour (7) The framing, including grounds and the joint pieces of bulkheads, linings, ceilings and draught stops are to be of non-combustible material (8) All exposed surfaces in corridors and stairway enclosures and surfaces in concealed or inaccessible spaces in accommodation and service spaces and control stations are to have low flame-spread characteristics Exposed surfaces of ceilings in accommodation and service spaces and control stations are to have lowflame-spread characteristics (9) Bulkheads, linings and ceilings may have combustible veneers provided that the thickness of such veneers are not to exceed mm within any space other than corridors, stairway enclosures and control stations where the thickness is not to exceed 1.5 mm Alternatively, veneers which have a calorific value not exceeding 45 MJ /m of the area for the thickness used irrespective of those veneers (10) Primary deck coverings, if applied, are to be of materials approved by VR, which will not readily ignite, or give rise to toxic or explosive hazards (11) Paints, varnishes and other finishes used on exposed interior surfaces are not to be of a nature to offer an undue fire hazard in discretion of VR and are not to be capable of producing excessive quantities of smoke or toxic fumes Ventilation provided with units except those provided in hazardous area are to be in accordance with following (1) to (9): (1) The ventilation of the accommodation spaces and control stations are to be arranged in such a way as to prevent the ingress of flammable, toxic or noxious gasses, or smoke from the surrounding area (2) Ventilation ducts are to be of non-combustible material Short ducts not generally exceeding m in length and with a cross-sectional area not exceeding 0.02 m2 need not be non-combustible, subject to the following conditions: (a) These ducts are to be of a material which has a low fire risk, in the opinion of VR,; (b) They may only be used at the end of the ventilation devices; and (c) They are not to be situated less than 600 mm, measured along the duct, from where it penetrates any "A" or "B" class division including continuous "B" class division (3) Where ventilation ducts with a cross-sectional area exceeding 0.02 m2 pass through class "A" bulkheads or decks, the opening is to be lined with a steel sheet sleeve unless the ducts passing through the bulkheads or decks are of steel in the vicinity of penetrations through the deck or bulkhead Such ducts and sleeves are to comply with the followings: (a) The ducts or sleeves are to have a thickness of at least mm and a length of at least 900 mm When passing through bulkheads, this length are to be divided preferably into 450 mm on each side of the bulkhead These ducts, or sleeves lining such ducts, are to be provided with fire insulation The insulation are to have at least the same fire integrity as the bulkhead or deck through which the duct passes Equivalent penetration protection may be provided to the satisfaction of VR 75 TCVN 6259 -8B: 2003, Chapter 14 (b) Ducts with a cross-sectional area exceeding 0.075 m2 except those serving hazardous areas, are to be fitted with fire dampers in addition to meeting the requirement in (a) The fire damper are to operate automatically but are also to be capable of being closed manually from both sides of the bulkhead or deck The dampers are to be provided with an indicator, which shows the damper is open or closed Fire dampers are not required, however, where ducts pass through spaces surrounded by " A" class divisions, without serving these spaces, provided those ducts have the same fire integrity as the divisions which they pierce (4) Ducts provided for ventilation of machinery spaces of category A, galleys and hazardous areas are not to pass through accommodation and service spaces or control stations, except the following requirements of (a) or (b) may be complied with: (a) (i) The ducts are made of steel having a thickness of at least mm for ducts of 300 mm in width or less and at least mm for ducts of 760 mm in width and over In case of ducts the width or diameter of which is between 300 mm and 760 mm, the thickness is to be obtained by interpolation; (ii) The ducts are to be fitted with automatic fire dampers close to the boundaries penetrated; and (iii) The ducts are to be insulated to "A-60" standard from the machinery or galleys to a point at least m beyond each fire damper (b) (i) The ducts are made of steel in accordance with (a)(i); (ii) The ducts are to be insulated to "A-60" standard throughout the accommodation spaces, service spaces or control stations (5) Ducts provided for ventilation of accommodation and service spaces or control stations are not to pass through machinery spaces of category A, galleys or hazardous areas, except the following requirements of (a) or (b) may be complied with: (a) (i) The ducts where they pass through a machinery space of category A or galley are made of steel in accordance with the requirement in (4)(a)(i); (ii) Automatic fire dampers are fitted close to the boundaries penetrated; and (iii) The integrity of the machinery space or galley boundaries is maintained at the penetrations (b) (i) The ducts where they pass through a machinery space of category A or a galley are made of steel in accordance with the requirement of (4)(a)(i); (ii) The ducts are insulated to "A-60" standard within the machinery space or galley (6) Ventilation ducts with a cross-sectional area exceeding 0.02 m passing through "B" class bulkheads are to be lined with steel sleeves of 900 mm in length divided preferably into 450 mm on each side of the bulkhead unless the duct is of steel for this length (7) Where ducts pass through accommodation spaces or space containing combustible materials, the exhaust ducts from galley ranges are to be of equivalent fire integrity to "A" Class divisions Each such exhaust duct are to be fitted with following (a) to (d): (a) A grease trap readily removable for cleaning (b) A fire damper located in the lower end of the duct (c) Arrangements, operable from within the galley, for shutting off the exhaust fans (d) Fixed means for extinguishing a fire within the duct (8) The main inlets and outlets of all ventilation systems are to be capable of being closed from outside the spaces being ventilated (9) Power ventilation of accommodation spaces, service spaces, control stations, machinery spaces and hazardous areas are to be capable of being stopped from an easily accessible position outside the space being served The means provided for stopping the power ventilation serving machinery spaces or hazardous areas are to be entirely separate from the means provided for stopping ventilation of other spaces 76 Windows and side scuttles in boundaries which are required to meet an "A-60" standard which face the drill floor areas are to be in accordance with one of the following requirements: TCVN 6259 -8B: 2003, Chapter 14 (1) They are to be constructed to an "A-60" standard (2) They are protected by a water curtain (3) They are fitted with shutters of steel or equivalent material Where helicopter facilities are provided with the units, helicopter decks are to be in accordance with following requirements (1) to (3): (1) Helicopter decks are to be of steel or equivalent materials, at least they are to have a fire integrity of " A-0 " standard However, where an air gap between the deckhouse top and the underside of the helicopter deck is at least m , an alternative to the "A-0" may be accepted (2) Means are to be provided to prevent the collection of liquids on the helicopter deck and to prevent liquids from spreading to other part of unit (3) Deckhouse top directly below helicopter decks are to have no openings 10 Where more than one cylinder of oxygen and acetylene are carried simultaneously on the unit, such cylinders are to be arranged in accordance with the requirements of following (1) to (6): (1) Permanent piping systems for oxyacetylene systems are acceptable to VR (2) Where two or more cylinders of each gas are intended to be carried in enclosed spaces, separate dedicated storage rooms are to be provided for each gas (3) Storage rooms are to be constructed of steel, and be well ventilated and accessible from the open deck (4) Provisions are to be made for the expeditious removal of cylinders in the event of fire (5) "NO SMOKING" signs are to be displayed at the gas cylinder storage rooms (6) Where cylinders stowed in open place are to be provided to the followings (a) to (c): (a) To protect cylinders and associated piping from physical damage; (b) To minimize exposure to hydrocarbons; and (c) To ensure suitable drainage 14.2.3 Means of escape Means of escape for the units are to be correspondingly complied with the requirements in 14.2.2 or the requirements in Chapter 5, Part 77 TCVN 6259 -8B: 2003, Chapter 14 Table 8B/14.1 Fire Integrity of bulkheads separating adjacent spaces (1) Corridors (2) Accommodation spaces (3) Stairways (4) Service spaces width low risk of fire (7) (8) (9) A-0d A-0 A-60 A-0 A-15 A-60 A-15 A-60 C B-0 B-0 B-0 A-60 A-0 B-0 B-0 A-60 B-0 B-0 A-60 A-0b (10) (11) A-60 * A-0 A-0 A-0 * B-0 A-0 A-0 A-0 * c A-0 A-0 A-0 * B-0 * (9) Open decks (6) (8) Service spaces with high risk of fire (5) (7) Hazardous area (4) (6) Other machinery spaces (3) (5) Machinery spaces of category A (2) A-0b Stations (1) A-0 (10) B-0b C A-0b c A-60 A-0 A-0 A-0 * B-0 * A-0 A-60 A-60 * A-0 a a A-0 A-0 * A-0 - A-0 - A-0 A-0 * A-0 - * A-0 a,c Sanitary andsimilar spaces c (11) C Notes: c in the Table means that divisions are made non-combustible materials a, b, c, d, * and "- " in the Table means as follows: a : Where the space contains an emergency power source or components of an emergency power source that adjoins a space containing service generator or the components of generator, the boundary bulkhead or deck between those spaces is to be an "A-60" class division b : Either of the divisions indicated above or below is to be provided in consideration of 14.2.2-4(1) and (3) c : Where spaces are of the same numerical category and subscript c appears, a bulkhead or deck of the rating shown in the Table is only required when the adjacent spaces are for a different purpose, e.g in category (9) A galley next to a galley does not require a bulkhead but a galley next to a paint room requires an "A-0" bulkhead d : Bulkhead separating the navigating bridge chartroom and radio room from each other may be "B-0" rating * : Where an asterisk appears in the Table, the division is required to be of steel or equivalent material but is not required to be of "A" class standard However, where a deck is penetrated for the passage of electric cables, pipes and vent ducts, such penetrations are to be made tight to prevent the passage of flame and smoke "-" : Where a dash appears in the Table, the division need not be of "A", "B" or "C " class standard 78 TCVN 6259 -8B: 2003, Chapter 14 Table 8B/14.2 Space Space Below Fire integrity of decks separating adjacent spaces above (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) Stations (1) A-0 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-0 * A-0 Corridors (2) A-0 * * A-0 * A-60 A-0 A-0 A-0 * * Accommodation spaces (3) A-60 A-0 * A-0 * A-60 A-0 A-0 A-0 * * Stairways (4) A-0 A-0 A-0 * A-0 A-60 A-0 A-0 A-0 * A-0 A-15 A-0 A-0 A-0 * A-60 A-0 A-0 A-0 * A-0 Service spaces width low risk of fire (5) Machinery spaces of category A (6) A-60 A-60 A-60 A-60 A-60 * a A-60 A-60 A-60 * A-0 Other machinery spaces (7) A-15 A-0 A-0 A-0 A-0 A-0 a * a A-0 A-0 * A-0 Hazardous area (8) A-60 A-0 A-0 A-0 A-0 A-60 A-0 _ A-0 _ A-0 A-60 A-0 A-0 A-0 A-0 A-0 A-0 A-0 A-0 c * A-0 * * * * * * * _ * _ * Service spaces with high risk of fire Open decks Sanitary and similar spaces (9) (10) (11) * Note: See Notes under Table 8B/14.1 14.3 Units which are engaged in works without danger of a fire or an explosion 14.3.1 Application Construction of fire protection and means of escape for the units which are engaged in works without danger of a fire or an explosion are to be applied with the requirements in this part, in addition to comply with the requirements in 14.1.2 For construction of fire protection and means of escape for the units having large embarking capacity, VR requires additional requirements in addition to the requirements in this part 14.3.2 Construction of fire protection The construction of fire protection for the units is to be correspondingly complied with the requirements in Chapter 2, Part 14.3.3 Means of Escape Means of escape for the units are to be correspondingly complied with the requirements in Chapter 5, Part 14.4 Units which have accommodation for particular personnel or passengers 14.4.1 Application 79 TCVN 6259 -8B: 2003, Chapter 14 The construction of fire protection and means of escape for unit having accommodation for particular personnel or passengers, such as an Accommodation barge are to be applied in the requirements in this part as well as the requirements in 14.1.2 14.4.2 Construction of fire protection The construction of fire protection for the unit is to be of appropriate by VR, considering the structural arrangements, unit type, embarking capacity, etc The construction of fire protection for the unit having small embarking capacity, is to be correspondingly complied with the requirements in Chapter 3, Part 14.4.3 Means of escape The means of escape for the unit is to be of appropriate by VR, considering the structural arrangements, unit type, embarking capacity, etc., The means of escape for the unit having small embarking capacity are to be correspondingly complied with the requirements in Chapter 5, Part 80 TCVN 6259 -8B: 2003, Chapter 15 Chapter 15 15.1 FIRE EXTINGUISHING SYSTEMS General 15.1.1 Application Fire detection and extinguishing systems provided in the units are to comply with the requirements in this Chapter Consideration is to be given to any relevant statutory requirements of the National Authority of the country in which the unit is registered Compliance with these statutory requirements may be accepted as meeting the requirements of this Chapter 15.1.2 General Unless otherwise specially required in this Chapter, fire extinguishing systems, fire extinguishers, fire detection systems, etc., and associated pipes are to comply with the requirements in Part and Part All fire extinguishing systems and fire extinguishers are to be being available for immediate use at all time Where helicopter facilities are provided in the units fire extinguishing systems on helicopter decks are to be in accordance with the requirements in 6.7.1, Part Where the intermediate tanks to serve water for fire extinguishing systems are provided in the units the intermediate tanks are to be satisfactory of VR 15.2 Units which is engaged in works with danger of a fire or an explosion 15.2.1 General The fire extinguishing systems of the unit which is engaged in works with danger of a fire or an explosion is to be in accordance with the requirements in Chapter 6, Part 5, as a tanker, and additional fire extinguishing systems as deemed appropriate by VR are to be provided with For the fire extinguishing systems for the unit having large embarking capacity, VR may require additional fire extinguishing systems in addition to the requirement in -1 15.3 Units which is engaged in works without danger of a fire or an explosion 15.3.1 General The fire extinguishing systems of the unit which is engaged in works without danger of a fire or an explosion is to be in accordance with the requirements in Chapter 6, Part 5, as a general cargo ship, and additional fire extinguishing systems as deemed appropriate by VR are to be provided with For the fire extinguishing systems for the unit which has a large embarking capacity, VR may require additional fire extinguishing systems in addition to the requirement in -1 15.4 Units which have accommodation for particular personnel or passengers 15.4.1 General Units having accommodation for particular personnel or passengers, such as an accommodation barge, the fire extinguishing systems as deemed appropriate by VR are provided with, considering the structural arrangements, type of unit, embarking capacity, etc 81 TCVN 6259 -8B: 2003, Chapter 15 82 The unit having small embarking capacity, may be provided the fire extinguishing system complying with the requirement in Chapter 6, Part as a general 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