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6、l Ji 1m tift r* M!i aJ m ft.f , H Jt: w mm*Am.mwm!m - l*oft.A(fJR*o 20 Jt:Lf -jtJj( j( ll8 ltl * * fjt JJl ?ffo 11I * JJi( !J!tl .w. 0 . 3o %i!f.l5fi;J,IRi!JHimt:!ltt1f. o 4. :;collfiHIF71 1fili:12:itlM tM :;:Jt o s 0 ffU# ,a. *J!Vi ml fi 119 ffr :it!. M , m l4 0 :ffJ ) i. :t lMi o 6o :Jif-1-IDTlmii
7、. im1 mli I=(-& !J:gjtfif r :MF 7.k1L 1f :1& *-i& i.t :MF 7.k :fJ , Jt ft ml Jf l!I. . * f&t: i.t 1;/;J o 7. * :lriim * ill B 1r llli 0 oo -* :tiJ m it $t t ztc r. * 1&! -n- m lHfl. Cit!. :Ill: .t ifiHIi .:0 rJ .:.1m 258 , r!J : 200041, E-mail: GB 50015-2003163. com). * X fcij ms frJ n tr.J 1rr : .t
8、 7BI: l.W. 11: m 1Jt i&t -it tt 0 * IX fcij $ f!J i.T tfJ fll. : t:? 1Jt i&!: -J:t iiJf Jl *1Xfcij$.i.TtfJ-A:H - M* .00. *IX$ f!J n $ A:7rr9:Wf * xitl* lin 2 j Int . JR-ft *11l:r .:E f.li t!tfl_ij 1rz .: 1iJf * w w w . b z f x w . c o m 138 i9:$:kr:ffl oo *fl lt m JJ f.IF 7J iJt J, m: B 0-1-lJJ m ti
9、E .m 1X 1Jc t:t * it 1 m :h oo * ;t ?! , :h GB 50015- 2003, El 2003 if: 9 J1 1 El ;(. ;Jt r.F, 3. 2. 1, 3. 2. 3, 3. 2. 4, 3. 2. 5, 3. 2. 6, 3. 2. 9, 3. 2. 10, 3. 2.14, 3. 5. 8, 3. 9. L 3. 9. 3, 3. 9. 4, 3. 9. 9, 3. 9. 12, 3. 9. 14, 3.9.22, 3. 9. 24, 3. 9. 27, 4. 2. 6, 4. 3. 5, 4. 3. 6, 1. 3. 13, 4.
10、3.19, 4. 5. 9, 4. 8. 4, 4. 8. 8, 5. 4. 5, 5. 4. 20 :h5!ftfllijf X, 1H9rF:f*:tAf. mt lt$: 7l t:17lGBJ 15- 88 JF.iJ fi;J 11:. *mmmmr.ruwttiliM fl $A. 3t ll!E t!t $ =oo.=lF!rn.FJ+.n.s w w w . b z f x w . c o m*111*iHititmlt:fiF0998J94 %:t*.-f-fLfLJ. 1f: I Hili 00 .fif-rtE iiHT , f!i iT it rJ -tl!Y 89 i
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12、:Hilf, 7c 1fl?1G BJ , :tf.;ftl19: it A JJi. :f#!: BJ lilll.t , r2 t.!1U $1J it t Jf iVf 7Hff M iTti 1 o 7.ji:.W.111fiTaJ fi: CDt 3t I Ji1Ht;J rK Ml)(f.li7JJ o iflil 111 JE T 13: , i :Jt iiU: JtJ 7 0E Wi o 1 JE T i1! li Ji 5 !4HUf!I * Jt: T iJifi if it 1ilZ fiiHt # . fi Et till fY zm: 1i itJr-* m m *
13、 rr. 0 . -* .-1 J9l: 11= Jtll.k .tJ il = 0 . (7)1 JET 7)(.tv1Hf-rtl!.l)(ff-Hffi0J . f Jt: T ft!p .bbl.IoT-#ttRl)(,.l)(f.l 71 1i rm e ;UJ9 1t 01 , -!* oo T DT: !J! tL 11-&. 1!.1: 1nm (11 )c., WJ T !=F. F I 11 .J=.Ill ag :fl. ;.E: )C. ;f Jt T Wi m 11 ffi.f.l 1-rfx: 0 v T 1t l:fl m11 f:tt Ji7. i&hi ;J,
14、 M*f7A:I:it0 agJtlifi m1 o JJI T g .fif;V,7.k ifi* (J;_rit$. ;f JE TMm*mm.tna*m*o*T txffl 7J 1! BJ ;fl * rf;j 0 *M*Hserra.fif*rrm&8 )C rf;J Pm 11 :(I f!HI!if:st t fi 1t J: o *M1111:flA*)Ctl-X,FMfi. . . w w w . b z f x w . c o m*mR*ttAm 13 .ftl J1R JJi fit ff( -1* ; 7&-.Hif-i! 1- $t i!t i.t ( l?fl )
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18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. . . . . .TI1:.a.&+r7Jc. . . :; * -lr:J .Q!I. ,., illY G t JJ:1. 1lJ .D. JfW 14). t;X. -tit .v -: . .-!. it lf/_J. lS./J./J * . . ;=tJ ,ffltf* . 000 . 15 j( ;Jfl-7Jc l& . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . ( 1 ) ( 2 ) ( 2 ) ( 1 2 ) (17) (1 7) ( 2 3) (26) ( 2 7) (32) ( 3 5) (1!3) ( 4 5) ( 4 9) (53) (57) (58) (58) (58) (60 ) ( 6 5) (70) (73) (77) 1 w w w . b z f x w . c o m4. 8 J:tmrs7JcJ11! . . . 19) 4.9 mJJ 84) 5 ll.t tbJf:!tl.lZ . ( 9 2) 5. 1 Jfll.(fi ,j(ll,jif117Jc/9l: .
20、 ( 9 2) 5.2 7J1jtJ.iY:tf . (97) 5. 4 Jl(J;/JUfn!t:.ff (103) 5.5 it . (116) 5 . 6 l:f :U 1-t 4 ;fnl)!l itt ij . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 11 8 ) 5. 7 /J.:XJJil.!tr o o o o o o o o o o o o o o o o o o oo o oa o o o o o o o o o o o o o o o, o o
21、o o o o o o o oo o o o ( 120) l!f1 A 1Vlt5139m:i!HIfblltfirii&!m 024) B .-11 ;J 1K :ll!. F fflC llWmnftAM*ili- acm . *Vl1fflii,Jif!f:J . (145) i51ffltm;g . mt:Xi3GBj . ; . (147) 2 w w w . b z f x w . c o mContents 1 Genera I prov1s1ons . . ( 1 ) 2 Terms and symbols . . ( 2 ) 2. 1 Terms . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 ) 2.2 Symbols (12) 3 Water supply . t ,varer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 2) 5. 2 Selection of hot water supply !ystems . .
23、. . . ( 9 7 ) 5. 3 Calculation of heat consumption hot water consumption and power capability of heating c4uipment . . ( 100) 5. 4 Water heating and stotage . . . . . . . (1 03) 5. 5 Calculation of pipenet . . . . . . . . . ( 116) 5. 6 Pipe materials, appurtenances and piping layout . . . (1 1 8) 5.
24、 7 Drinking water supply . . . . . . . . . (120) Appendix A Degree of backflow hazard & the selection of back flow prevention facilities . . . . . 024) Appendix B Minimum clearance between underground pipelines (structure) for residential . comnlun1ty . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . . . . . ( 126) Appendix C Probability formula calculating water supply fixture unit and peak flow ,ac values -table (127) Appendix D Equivalent length for friction loss of valves and threaded fittings resistance . . . . . 028) Appendix E Calculation table for design flow of water s
26、upply piping in L/ S . . . . 029) Appendix F Calculation for the number of simultaneously use drinking water taps . . (143) Explanation of wording in this code . . . . (145) List of quoted standards . (146) Addition: Explanation of provisions . . . . . . (14 7) 4 1 1. o. 1 jg-f*l!IltH 711 .J*VIL 1.
27、o. 2 *J. Mm =f ftJ , 0$tf8:, ffllt 7lf.IF7K *JFJfifflM7lP7lrmwiD7lf.l7li.to m*I-h-rlam:ft= t iIHl 11 jt , $ $JfW Jlk f8: Bj 1Jl: 4m ; 2 mmu9N; 3 ii) JJc ff A. t SJ ; 4 I1:J&7kf.IJ.!c; 5 :fl $t r:p 7( 1f:i l)c lj )1-J o -1. 0. 3 lt$t Jkt4!71Jt (19 EI;J.:J)jft!I ilt fF lf.fl! f lj IV.&-! tp tfldJtft l
28、j flj: 0 1. 0. 4 !iS 7l1 o 1 2. 1 * drinking water llamll5mme#m.* 2. 1. 2 ffll non-drinking water JtlliPt;:1.1!. $. i! i1L 111t .1 .rtimtlliFJfJJK (kJ.:fflll 0 2. 1. 3 ;J,It-11-l:* hourly variation coefficient MaB-B1fflllfflllMttffio maximum hourly water consumption li iWli B M:kJtl ll at 1 tJ;J, at
29、 ffl ll ito 2. 1. 4A #I t fll it average hourly water consumption :IIi it s m *at rJ.J B-J .lf BJ ;J, Dt ffl * . 2. 1. 5 V1L fi !M! b*ackflow pollution nlnlli*-0 -2. 1. SA lli I tift back-pressure back flow *vm-ffBS%m7Kd-tt*AMM7lm-o 2. 1. SB !Ia: I lrtt siphonage back flow 1( 1-:ill rAJ fl1. ff iJ I
30、 Jl -E Jit . 1 K $ -P BJ 1 K TIJ1: !* m (jJW:A ;j( iJtB9Jm o 2.1.6 2=.fii air gap 1t 1K if. I , 1f it! ili 1Jc o !Jlt 7K P o 89 lil 11 .B Ei J I I 1( ti 4i t.fui mt 1Jc 1ft fEiJ m 1I :5:! fiil E ;:-r f.IJ: 1K 1UF , IBJ t- f.l 7( AJ i9: -14-!it f.ti f.lilifiOfillBm7KtJ-. 2 2. 1. 7 mrJ!il!l flood-leve
31、l rim :mEI:!JttVftH.t.Jtl. backflow preventer -#*mS#md* 2.1. 7B lti!lltf-:D vacuum breaker -#A*ffmJM*ttw -2.1.8 51Alf service pipe :j4 : 9M7k t:51 Al!lX!IWJ ffl m Wit! I A :1! 1R M * W Hit. 2.1. 9 .PW inter-building pipe :ffl :( l1! JJt Em , 1LJ Jt JJt #.1 51 A lf :fll :f.IF ttl ttl aJ M 7kt11=* 2.1
32、.10 A.Ptf inlet pipe ttmM7kW.:iti:Aft.P:*. 2. 1. 11 rt:J :St 1R vertical division zone JIJ* 71Hi.* 1r1J 5: 2. 1.13 :fll9C1JbJ series water supply it:m-tf !li rt:J * IZ, 18: rJtfl ) ffiJ( iJ1Ji. 2,1.13A ff7k pressure superposed water supply mS9M7kWffiM*ff=m*1f. 2. 1. 14 lll exposed installation : fJ;
33、J If it! IIJJ :ffl ft B:J /J 2.1. 15 lltiii concealed installation.embedded installation rJ;Jit!;(fi:i:1*W:fl, m1t-W .!X: :if ant$1:d!i llil( $: i&( 1f manifold 3 rp 1 li1J $ 5t IMi-#t * ff.J il1 m f4 o 2 . 1. 1 7 ( .tit * Mill* ) 2 . I. 18 ( Jlt *-ft!llll* ) 2. 1.19 * coefficient of line-expansion
34、r!li oc & ! :hn 1 c Bt 1f 1tl w: * JJt B:l 1 ii o 2. I. 20 J2fJ-!. plumbing fixture, fixture 7c 1H3Ht , 1:11! Hi t5 J3f 1.K 75 aJ $ 9.X: it o 2. 1. 21 .12-l-iit fixture unit IV,-JI Jt.mt:!i ( Jj( mt. ii:f47.K vtt:l:) iRJ . ;lt1!, J! 1:$ ,a. t:t9 tnt lit ( * mt it J/: t:ll! 7( mt it) ffi Ej ;It EJ(J
35、t; l 0 2. 1. 22 Wi%: rffi.:Jit ominal flow J!ftAE7.lWo$W:-Wff.Jm7.lfio 2. 1. 23 i&ti.tilit:!it design flow 7.1:f47.1-*il1- itf&. 2. l. 24 *1 head loss 1.kim:ii, -k AJ1Jt51 89* o 2. 1. 25 kt&J.k pneumatic water supply 83 7.1 1 iLf1l ff .t.J Mtv, .& - I!HHI! JiX; , 7.K * 7.K ff A ffi JJ ifi ,1-t( -B:J
36、ffiRffJJ,SMlcRtt-7.1ffi.t.JaJm 7.1/Ji-; 2. 1. 26 fte7.1. points of distribution 7.l#t q:r BJffllt. 2. 1. 21 Yi lil .1&1 Wl circulating period WliiJ.k-JJWmW-JJWm.!:jW:at J.f it 89 It i 2. I. 28 1R *i9c backwash -75-.mwff.Jl.kmtM*fi l!fl t1t 4 unassured hour for average year stabili7.fltion treatment
37、of water qual-. uy 1-1 t#Vi JiF t1J 7.k 1 89 NHiS :f11 = ft 1.1 tit It lt U .if 1 mz ii5 m iTti Jfn m. .if ;t:t Hfrm ii ) , ff: 1nl JUJ t 1m - ftfi * FfJ ) 7.1 5. J1R T. 2!: 0 cycle of concentration tl6 JiF ft !11 ;J 11 *it & 1 ft 71 89 *ill. tit If B9 It -m: 0 2. 1. 32 itJi self-priming J.l3ii!S i;
38、IJD47111:j JtA (!951 7J)fj; o 2. 1. 33 7.1:*: waterscape, fountain A I Il.li e.J7J %if. 2. 1. 34 1:. ns try 7.1 domestic sewage m s !B1:. t lf!1-11=71! 89 fit! t5 *. 2. 1. 35 1: m !JflJ domestic wastewater ffli 1 B kt 1:. tiS rp tl ffit BJ a.l 2. 1. 36 7511171 domestic drainage MaB#1:.MtlFiliffYM7.1
39、ffiC7.kn9a. 2. 1. 37 1-1 ili tf building drain, outlet pipe -M-897J8Vfto 2. l. 38 .ll. vertical pipe,riser,stack 11 *JL!k:ffi Jr 45oJ tril. 2. 1. 39 1 horizontal pipe 7K lfL .!.X 7K3JLffJ lT 4589 IfilL ;t:t 1 li Jt.tli=;J W1-11:7.kWB9W8ft;-1:7JWf.lilift 89 Wllf fi ffJ. =r 1f 2. 1. 40 rW CJ cleanout
40、1F7Klf .t . .m -T1iH3 f.ll:l.k B91C.ftf. 5 . 2. 1. 41 0 check hole, check pipe 111 1f jjJ 1f .Ia t: iff BJ IC 1tf , i&t tE f.lf: 1Jc 1L if:&.* :m if .t. , fF if 11 illi z. JlJ 2. 1. 42 ff7Jc trap TIftAdftAF7k.W.t.t-*ME 14 2. 1. 43 7kt1 water seal t-1f-.7ktt.f.l7k-AS pgo 2. 1. 44 H H pipe -f.l7k1I.WJ
41、I.WminHmtc#o 2. 1. 45 :iM .ec if vent pipe, vent 1gf.lJK-I*J :Vfi5il ,lffJ. WI Jk*Itf-ifflt!l * ;f:tllfii (I ii 0 2. 1. 46 fftJJJ!JiiW stack vent F7k1LW-.t.Mf.l7kXW-.t.1IM-Jil . JfJ llr l1! 0 2. 1. 47 m ii 11:. if specific vent stack 7k1I.V . m7kJI.Wpg-Jiltxa lfiio 2. l. 48 7-g.jjW vent headers JI.W
42、dm7kJI.Wm*m- *illi:k 2. 1. 49 .:Eli .31. W main vent stack -%.ecF7k1LW.7kmW*1LW mtia ffiitli1Iff:i1t 0 2. 1. so IIJ jj 1L. secondary vent stack, assistant vent stack 6 illi31: 0 2. 1. 51 JfJifllC( loop vent TIftA*mk.AMTIftA Z-ili-WVmo 2. 1. 52 ftA. 1f fixture vent TIAff.Jlilino 2. l. 53 *:ii!ir:f yo
43、ke vent f.IFJlfL .!:ryllft fl. :tttr m o 2. 1. 53 A E1 Jflm. self-circulation venting :ii =c fl. 1J , IBJ f.IF * fl. if ffl ii , :tE liS: .!:ry f.! I ili if it *:tEWiliITffi:ii!i:it-RWmff* fffl iJ 3JL :iill 1n. o 2. 1. 54 IBJf.IJl indirect drain 19: Iil ?(;. ft f.IF *If m .!:ry :J:tl * . !1t : , Jt
44、rBJ lf Iii o 2. I. 54A Jtj;J.( vacuum drain fflR*R*-.ffl- 11-l!IHt9 :J:II: 7)C1f ;r. o , 2. 1. 548 FiilnHll=7.1 same-floor drain *-ftf.IF7lm.uA* *flAo -2. 1. 55 mJt covered depth i:m Jt!.1f itHf TDL Jt!. 00 1.1 til o 2. 1. 55A tJRj:i*fl buried depth Jt!.f.ll=*ftmwo 2. 1. 56 7 JO!.L1.1i!tt1fJ angle o
45、f turning flow 7lK*-gz1fJo 2. 1. 57 )trll depth ratio Jlrm;(: l:f I.1Jt, llflli J*f*Ejz ttfili .m 7 ll1 v;. * 1*-Ei z tt-ffil*m. 2. 1. 58 1JJ71!. grease tank ?t!Wi, rili Jjj( c ha nlii a tfJ;J ruH11! t $t. 2.1. 58A I!M1ltl grease interceptor ?t!Wi , r J1.1 r:p ntlB.I ft. 2. 1. 59 tAl cooling tank f-
46、1 7 K WtJJt 89 I j B!: JJU 1 2. 1. 60 1-t111! septic tank 8mR7J?tm.*R-ffM, $t. 2. 1. 61 r:fl.l reclaimed water 3f-17.1*mmm7.1. 2. 1. 62 1!1G57.1l!f:IITJEat duration of rainJall f:f:.i :i:J:W r.F IJ 1 f it u;J inlet time 8 f8J. f*7k111fBJ. 2. 1. 70 1pgr.iMili.fiBJ time of flow M*mn.mftfB.J. 2. 1.71 ?
47、r7kiii.fR catchmentarea r:ru 1.1 m rc m aJ w m 2. 1. 72 11!.1Jllifm7.kf.l7.l gravity building drainage sys-tern tt m JJ llii i&t it R9 mt w rn * f.IF * * . 2.1. 73 1f.ttJJmtrn7.lt4* full pressure storm sys-tern -mnn-wmrn*.ffn :J t.1J lfl-1ti BJ ;m m 1.1 f.IF * . 2. 1. 74 f:IT7.1 IJ gulley . gutter i
48、nlet oomJtcAmJtcmBJ*IJ 2. J. 75 ffitW7.llf downspout, leader .mFsoorn7.1BJ*. 2. 1. 76 ; m if hung pipe 1 .t1H&m-r 91:f:ti.BJm,J:m. 2. 1. 77 f.N7.14 roof drain msooBJmJJ(Aml.IBJ 2.1. 78 1* run-off coefficient -rcl.lwmaJm*m. 2. 1. 79 rpJtcJ.ili* central hot water supply system -ti * ij!jlj!jf) 9.Xflti
49、lt1JtP.Jf * (!J j. . all day hot water supply sys-tern :( 8 .I fFJ.JII!l;g a-tfBJ I*J fBJ $Ttl:J.iliJ.lBJ . 2. 1. 798 f!;J 7.1 1 J.ili fixed time hot water supply system 9 :8: 13 , I 1$ Jff. i! at lil i*J -at!:!; $L 7Ut9 tiC o 2. 1. 80 fiij-$71-#t!.ilZtiC local hot water supply system -E7lMC7l$L-o 2
50、. 1. 81 7f7J;!U.ilZtft: open hot water system *ffill$L-. 2. 1. 82 fflill#U.i!Z* closed hot water supply system *7l-#t$L* 2. I. 83 1(! 1- 7J J.iiZ * single line hot water system, tempered water system m- 1-ill: 1 1f! -tffit 1J m * , 7f -flf. l%J 117J m a-1 1!. 7.1 * . 2. J. 83A 1Ji7.k-#t&*!.ft heat p
