1.4.2给水管道的敷设-LayingofWaterSupplyPipe15课

1.4.2给水管道的敷设LayingofWaterSupplyPipes二、给水管道的敷设LayingofWaterSupplyPipes（1）塑料给水管道在室内宜暗设。明设时立管应布置在不易受撞击处。当不能避免时，应在管外加保护措施。

Plasticwatersupplypipesshouldbeconcealedindoors.Thestandpipeshallbearrangedinalessvulnerableplacewheninstalledintheopen.Protectivemeasuresshallbeaddedoutsidethepipeifthiscannotbeavoided.二、给水管道的敷设LayingofWaterSupplyPipes（2）不得直接敷设在建筑物结构层内。

Thewatersupplypipeshallnotbedirectlylaidonthestructuralfloorofthebuildings.电气专业的线管Conduitofelectricalprofessions二、给水管道的敷设LayingofWaterSupplyPipes（3）干管和立管应敷设在吊顶、管井、管窿内，支管可敷设在吊顶、楼（地）面的垫层内或沿墙敷设在管槽内。Mainpipesandstandpipesshallbelaidinceilings,pipewellsandpipealleys,whilebranchpipescanbelaidinceilings,inthecushionof

thefloor(ground)orlaidinthepipegroovesalongthewall.二、给水管道的敷设LayingofWaterSupplyPipes（4）敷设在垫层或墙体管槽内的给水支管的外径不宜大于25mm。Theouterdiameterofthewatersupplybranchpipelaidinthecushionorwallpipegroovesshouldnotbegreaterthan25mm.（5）敷设在垫层或墙体管槽内的给水管管材宜采用塑料、金属与塑料复合管材或耐腐蚀的金属管材。Thewatersupplypipeslaidinthecushionorwallpipegroovesshouldbeplastic,metalandplasticcompositepipesorcorrosion-resistantmetalpipes.二、给水管道的敷设LayingofWaterSupplyPipes（6）敷设在垫层或墙体管槽内的管材，不得采用可拆卸的连接方式；柔性管材宜采用分水器向各卫生器具配水，中途不得有连接配件，两端接口应明露。Pipeslaidinthecushionorpipegrooveofthewallshallnotadoptadetachableconnectionmode.Flexiblepipesshoulduseawaterdistributortodistributewatertoeachsanitaryware,andthereshallbenoconnectingfittingsmidway,andtheinterfacesatbothendsshallbeexposed.分水器Waterdistributor二、给水管道的敷设LayingofWaterSupplyPipes（7）需要泄空的给水管道，其横管宜设有0.002～0.005的坡度坡向泄水装置。Forthewatersupplypipethatneedstobeemptied,thetransversepipeshallbeprovidedwithadrainagedevicewithaslopeof0.002~0.005.（8）给水管道穿越下列部位或接管时，应设置防水套管：Awaterproofcannulashallbeprovidedwhenthewatersupplypipespassthroughthefollowingpartsorconnectingpipes:穿越地下室或地下构筑物的外墙处。

Theexteriorwallofbasementorundergroundstructures.穿越屋面处。

Theroof.穿越钢筋混凝土水池（箱）的壁板或底板连接管道时。

Thewallplateorbottomplateofthereinforcedconcretepool(tank)whenpipesareconnected.二、给水管道的敷设LayingofWaterSupplyPipes（9）明设的给水立管穿越楼板时，应采用防水措施。套管顶部高出装饰地面20mm，卫生间、厨房内高出50mm，底部与楼板地面相平。

Waterproofmeasuresshallbetakenwhentheexposedwatersupplystandpipepassesthroughtheslab.Thetopofthecannulais20mmhigherthanthedecorativefloor,50mmhigherinthetoiletandkitchen,andthebottomisflushwiththeslab.二、给水管道的敷设LayingofWaterSupplyPipes（10）在室外明设的给水管道，应避免受阳光直接照射，塑料给水管还应有有效保护措施；在结冻地区应做绝热层，绝热层的外壳应密封防渗。Thewatersupplypipesexposedoutdoorsshallbeprotectedfromdirectsunlight.Effectiveprotectionmeasuresshallalsobetakenforplasticwatersupplypipes.Infrozenareas,heatinsulationlayersshallbemade,whoseshellshallbesealedtopreventseepage.敷设在有可能冻结的房间、地下室及管井、管沟等处的给水管道应有防冻措施。Anti-freezingmeasuresshallbetakenforwatersupplypipeslaidinrooms,basements,pipewellsandtrenchesthatmaybefrozen.二、给水管道的敷设LayingofWaterSupplyPipes（11）室内冷、热水管上、下平行敷设时，冷水管应在热水管下方。卫生器具的冷水连接管，应在热水连接管的右侧。Whencoldandhotwaterpipesarelaidindoorsinparallelupanddown,thecoldwaterpipeshallbeunderthehotwaterpipe.Thecoldwaterconnectingpipeofsanitarywareshallbeontherightsideofthehotwaterconnectingpipe.二、给水管道的敷设LayingofWaterSupplyPipes（12）小区的室外给水管道应沿区内道路敷设，宜平行于建筑物敷设在人行道、慢车道或草地下。管道外壁距建筑物外墙的净距不宜小于1.0m，且不得影响建筑物的基础。Outdoorwatersupplypipesinresidentialquartersshallbelaidalongtheroadsandshallbelaidparalleltobuildingsundersidewalks,slowlanesorgrassland.Thecleardistancebetweentheouterwallofthepipesandtheexteriorwallofthebuildingsshouldnotbelessthan1.0m,andshallnotaffectthefoundationofthebuildings.二、给水管道的敷设LayingofWaterSupplyPipes（13）室外给水管道的覆土深度，应根据土壤冰冻深度、车辆荷载、管道材质及管道交叉等因素确定。管顶最小覆土深度不得小于土壤冰冻线以下0.15m，行车道下的管线覆土深度不宜小于0.70m。Thecoveringdepthofoutdoorwatersupplypipesshallbedeterminedbysoilfreezingdepth,vehicleload,pipesmaterial,pipelinecrossingandotherfactors.Theminimumcoveringdepthofthepipetopshallnotbelessthan0.15mbelowthesoilfrostline,andthecoveringdepthofthepipesunderthecarriagewa