1.4.2給水管道的敷設(shè)-LayingofWaterSupplyPipe15課

1.4.2給水管道的敷設(shè)LayingofWaterSupplyPipes二、給水管道的敷設(shè)LayingofWaterSupplyPipes（1）塑料給水管道在室內(nèi)宜暗設(shè)。明設(shè)時(shí)立管應(yīng)布置在不易受撞擊處。當(dāng)不能避免時(shí)，應(yīng)在管外加保護(hù)措施。

Plasticwatersupplypipesshouldbeconcealedindoors.Thestandpipeshallbearrangedinalessvulnerableplacewheninstalledintheopen.Protectivemeasuresshallbeaddedoutsidethepipeifthiscannotbeavoided.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（2）不得直接敷設(shè)在建筑物結(jié)構(gòu)層內(nèi)。

Thewatersupplypipeshallnotbedirectlylaidonthestructuralfloorofthebuildings.電氣專業(yè)的線管Conduitofelectricalprofessions二、給水管道的敷設(shè)LayingofWaterSupplyPipes（3）干管和立管應(yīng)敷設(shè)在吊頂、管井、管窿內(nèi)，支管可敷設(shè)在吊頂、樓（地）面的墊層內(nèi)或沿墻敷設(shè)在管槽內(nèi)。Mainpipesandstandpipesshallbelaidinceilings,pipewellsandpipealleys,whilebranchpipescanbelaidinceilings,inthecushionof

thefloor(ground)orlaidinthepipegroovesalongthewall.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（4）敷設(shè)在墊層或墻體管槽內(nèi)的給水支管的外徑不宜大于25mm。Theouterdiameterofthewatersupplybranchpipelaidinthecushionorwallpipegroovesshouldnotbegreaterthan25mm.（5）敷設(shè)在墊層或墻體管槽內(nèi)的給水管管材宜采用塑料、金屬與塑料復(fù)合管材或耐腐蝕的金屬管材。Thewatersupplypipeslaidinthecushionorwallpipegroovesshouldbeplastic,metalandplasticcompositepipesorcorrosion-resistantmetalpipes.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（6）敷設(shè)在墊層或墻體管槽內(nèi)的管材，不得采用可拆卸的連接方式；柔性管材宜采用分水器向各衛(wèi)生器具配水，中途不得有連接配件，兩端接口應(yīng)明露。Pipeslaidinthecushionorpipegrooveofthewallshallnotadoptadetachableconnectionmode.Flexiblepipesshoulduseawaterdistributortodistributewatertoeachsanitaryware,andthereshallbenoconnectingfittingsmidway,andtheinterfacesatbothendsshallbeexposed.分水器Waterdistributor二、給水管道的敷設(shè)LayingofWaterSupplyPipes（7）需要泄空的給水管道，其橫管宜設(shè)有0.002～0.005的坡度坡向泄水裝置。Forthewatersupplypipethatneedstobeemptied,thetransversepipeshallbeprovidedwithadrainagedevicewithaslopeof0.002~0.005.（8）給水管道穿越下列部位或接管時(shí)，應(yīng)設(shè)置防水套管：Awaterproofcannulashallbeprovidedwhenthewatersupplypipespassthroughthefollowingpartsorconnectingpipes:穿越地下室或地下構(gòu)筑物的外墻處。

Theexteriorwallofbasementorundergroundstructures.穿越屋面處。

Theroof.穿越鋼筋混凝土水池（箱）的壁板或底板連接管道時(shí)。

Thewallplateorbottomplateofthereinforcedconcretepool(tank)whenpipesareconnected.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（9）明設(shè)的給水立管穿越樓板時(shí)，應(yīng)采用防水措施。套管頂部高出裝飾地面20mm，衛(wèi)生間、廚房?jī)?nèi)高出50mm，底部與樓板地面相平。

Waterproofmeasuresshallbetakenwhentheexposedwatersupplystandpipepassesthroughtheslab.Thetopofthecannulais20mmhigherthanthedecorativefloor,50mmhigherinthetoiletandkitchen,andthebottomisflushwiththeslab.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（10）在室外明設(shè)的給水管道，應(yīng)避免受陽光直接照射，塑料給水管還應(yīng)有有效保護(hù)措施；在結(jié)凍地區(qū)應(yīng)做絕熱層，絕熱層的外殼應(yīng)密封防滲。Thewatersupplypipesexposedoutdoorsshallbeprotectedfromdirectsunlight.Effectiveprotectionmeasuresshallalsobetakenforplasticwatersupplypipes.Infrozenareas,heatinsulationlayersshallbemade,whoseshellshallbesealedtopreventseepage.敷設(shè)在有可能凍結(jié)的房間、地下室及管井、管溝等處的給水管道應(yīng)有防凍措施。Anti-freezingmeasuresshallbetakenforwatersupplypipeslaidinrooms,basements,pipewellsandtrenchesthatmaybefrozen.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（11）室內(nèi)冷、熱水管上、下平行敷設(shè)時(shí)，冷水管應(yīng)在熱水管下方。衛(wèi)生器具的冷水連接管，應(yīng)在熱水連接管的右側(cè)。Whencoldandhotwaterpipesarelaidindoorsinparallelupanddown,thecoldwaterpipeshallbeunderthehotwaterpipe.Thecoldwaterconnectingpipeofsanitarywareshallbeontherightsideofthehotwaterconnectingpipe.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（12）小區(qū)的室外給水管道應(yīng)沿區(qū)內(nèi)道路敷設(shè)，宜平行于建筑物敷設(shè)在人行道、慢車道或草地下。管道外壁距建筑物外墻的凈距不宜小于1.0m，且不得影響建筑物的基礎(chǔ)。Outdoorwatersupplypipesinresidentialquartersshallbelaidalongtheroadsandshallbelaidparalleltobuildingsundersidewalks,slowlanesorgrassland.Thecleardistancebetweentheouterwallofthepipesandtheexteriorwallofthebuildingsshouldnotbelessthan1.0m,andshallnotaffectthefoundationofthebuildings.二、給水管道的敷設(shè)LayingofWaterSupplyPipes（13）室外給水管道的覆土深度，應(yīng)根據(jù)土壤冰凍深度、車輛荷載、管道材質(zhì)及管道交叉等因素確定。管頂最小覆土深度不得小于土壤冰凍線以下0.15m，行車道下的管線覆土深度不宜小于0.70m。Thecoveringdepthofoutdoorwatersupplypipesshallbedeterminedbysoilfreezingdepth,vehicleload,pipesmaterial,pipelinecrossingandotherfactors.Theminimumcoveringdepthofthepipetopshallnotbelessthan0.15mbelowthesoilfrostline,andthecoveringdepthofthepipesunderthecarriagewa