cecs136：2002_建筑给水氯化聚氯乙烯(pvc—c)管管道工程技术规程 198页

CECS136：2002_建筑给水氯化聚氯乙烯(PVC—C)管管道工程技术规程军§CECS136'2002中国工程建设标准化协会标准建筑给水氯化聚氯乙烯(PVC-C)管管道工程技术规程Tech画011spedfiOlt??onCorchlorinatedpoly(vinylchloride)pipelinee>.吨ln田园ngoCbnildingwatersnpply中国工程建设标准化协会标准建筑给水氯化聚氯乙烯CPVC-C)管管道工程技术规程Technicalspecificationforchlorinatedpoly(vinylchloride)pipelineengineeringofbuildingwatersupply\nCECS136'2002主编单位g上海建筑设计科技发展中心批准部门:中国工程建设标准化协会施行日期，2002年12月1日前言根据中国E程建设标准化协会(2000)建标协字第36号文《关于印发中国工程建设标准化协会2000年第二批推荐性标准制、修订计划的通知》的要求，制订本规程。本规程是在收集美国卫生管道工程与机械官员协会(IAPMOJ有关PVC-C冷热水配置系统的安装标准及日本有关耐热硬质聚氯乙烯管材配件设计、施工子册的基础上，结合我国管道设计、施王的经验和特点编制而成的。本规程共分6章和2个附录，主要技术内容有，1>.产品质量要求;2>.管材和管件主要物理化学性能;3>.管道布置和敷设;4>.管道变形计算和补偿措施;5>.管道水力计算;6>.防冻、保温、隔热措施;7>.管道连接技术;8管道支承;9试压消毒;10安全施工;11检验\n验收。根据国家计委标口986J1649号文《关于请中国工程建设标准化委员会负责组织推荐性工程建设标准试点工作的通知》要求，现批准协会标准《建筑给水氯化聚氯乙烯(PVC-CJ管管道工程技术规程们编号为CECS136'2002，推荐给设计‘施工和使用单位采用o卒规程由中罔ι程建设标准化协会建筑给水排水委员会CECS/TC24归口管理>.由上海建筑设计科技发展中心(上海市石门二路27><58号，邮编200041)负责解释。在使用中如发现需要修改和补充之处，请将意见和资料径奇解释单位。主编单位:上海建筑设计科技发展中心参编单位:上海汤臣塑胶实业有限公司福建亚通新材料科技股份有限公司中山环宇实监有限公司1??环琪(太仓)塑胶工业有限公司主要起草人:张森肖祥弊陈鹊何安华E永峰\n黄烈桑鲁青??2??目次l总则……>.，>.…………………>.>.>.>.>.>.>.>.>.>.>.(1)2术语………>.>.>.………………………';(2)3材料…………………………………>.';(3)4设计……………………>.>.>.>.>.>.>.>.>.>.………………(7)4>.1一般规定………………………………………>.(7)4>.2管道布置和敷设>.>.>.>.>.>.>.>.>.;>.>.……………>.>.>.………>.(7)4>.3管道补偿………………>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.……(8)4>.4管道水力计算…………>.>.';>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.';(9)4>.5防冻、隔热、保温…>.>.…………-………………>.>.>.>.>.>.>.>.>.>.>.(11)5施工\n>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.……………………E…'>.(12)5>.1般规定………………>.>.>.……………………';(1υ5>.2管道敷设……-……>.>.>.>.>.………………………;(12)5>.3管道连接…………>.>.>.>.………………(14)5>.4施工安全…………………………………;(16)6检测与验收;…>.>.>.…·‘>.>.';>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.(17)6>.1试压>.>.,…………………E………………>.>.(1门6>.2消毒、清洗-…………………>.>.……-……>.(17)6>.3验收>.>.,…>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.……………>.>.>.………U们附录A建筑给水氯化聚氯乙烯管道水力计算表……-…(19)附录B自由臂长度、管径和伸缩量关系图>.>.>.>.>.………>.>.(83)本规程用词说明………>.>.>.…E…>.>.…>.>.>.>.>.>.,>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.(84)附:条文说明……>.>.…>.>.';>.>.>.>.>.,>.>.>.>.>.>.>.>.>.>.,>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.(85)\n1总贝。1>.O>.1为在建筑给水工程中合理应用氯化聚氯乙烯管道(以下简称管道)>.做到安全卫生、确保工程质量，制订本规程。1>.0>.2本规程适用于工业与民用建筑生活给水和热水管道的设计'、施工及验收。本规程运用于管道设计压力不大于1>.OMPa、给水温度不大于45'C的冷水管道系统，以及管道设计压力不大于O>.6MPa、给水温度不大于75'C的热水管道系统。本规程不适用于建筑物内消防供水系统，或与消防供水系统相连接的生活给水系统。1>.O>.3本规程采用的给水氯化聚氯乙烯管材和管件，应符合国家现行有关标准的要求。管材与管件连接用的胶粘剂应采用专用粘接剂。粘接剂应满足规定的粘接强度和卫生要求。1>.O>.4建筑给水氯化聚氯乙烯管道工程除执行本规程外>.尚应符合国家现行有关标准的规定a1??\n2术语2>.O>.1管系列(5)pipeseries表示管材规格的无量纲数值系列，是用于选择管道规格的一种参数。2>.0>.2自然补偿naturalcompensation利用管道的弯曲(L型、zIi'!、U型等)吸收管道因温差引起的伸缩变化。2>.O>.3自由臂freearrn利用L型转弯管段的悬臂摆幅，对管道因温度变化引起的伸缩进行补偿，此转弯管段称为自由臂。2>.O>.4偏宣oflset在管路中采用一组弯头配件，使管线偏离但又平行于原来的管轴线。2>.O>.5固定支承fixedsupport将管道牢固固定，不允许管道产生位移的支承。2>.O>.6活动支承guidelongitudinalsupport将管道定位支托，只允许管道产生轴向伸缩位移的支承。\n2??3材料3>.0>.1管材上应标明产品名称、规格、生产厂名称、生产日期、商标、执行标准号。管件上应标明产品名称、规格、商标、执行标准号。管材、管件的包装上应标明产品名称、规格、生产厂名称、厂址、生产日期或生产批号。3>.O>.2盛装粘接剂的容器上应标明产品名称、生产厂名称或代理商名称，产品牌号、执行标准号、生产日期、生产批号(不得印在罩子或盖子上)，以及安全警告，并附有产品合格证书和使用说明书。3>.O>.3管材和管件外观质量应符合下列要求:1管材和管件内外壁应光滑平整，无气泡、裂口、裂纹和划痕，无凹陷、色泽不均和分解变色线;2管材的端面应垂直于管材的轴线$3管材、管件的管壁应不透光。3>.O>.4管材规格应符合表3>.O>.4的要求。\n表3>.0>.4臂材规格尺寸(mm)公称壁厚公林外径(do)管材不圆匮最大值管罩列(S)6>.35201>.22>.02>.0251>.22>.02>.3321>.32>.42>.9401>.43>.03>.7501>.43>.74>.6631>.54>.75>.842>.32>.8\n3>.64>.55>.67>.1??3??攘衰3>.0>.4公林壁厚公称外径(d，，)管材不圆度最大值管系列(S)6>.3547:i1>.65>.66>.88>.4901>.86>.78>.210>.11102>.28>.110>.012>.3\n1252>.59>.211>.414>.01402>.810>.312>.7←15>.7气1603>.211>.814>.617>.9注>.与管革功IJS6>.3、岛、s4相对应的管材压力等级为1>.6MPa、2>.OMPa,2>.5MPa。3>.0>.5管件承口尺寸应符合表3>.0>.5的要求。襄3>.0>.5管件承口尺寸(mm)去鞠外径最小承口深度承口的平均内径(d>.)(1-)最小最大2016>.020>.120>.32518>.525,125‘33222>.032>.132>.34026>.040>.140>.35031>.050,150>.3\n6337>.563>.163>.37543>.575,175>.39051>.090,190>.311061>.0110>.1110>.412568>.5125>.1125>.-t14076>.0]40,2140>.516086>.0160,2160>.53>.O>.6管材和管件的物理力学性能应符合表3>.0>.6的要求。??4??表3>.0>.6臂材和管件的物理力学性能项目指标管材管件\n民;二1450--1650kg/m3二三110'C注103;(:纵向M缩率;??;s%无任何破裂、烘箱试验分层、起泡盘熔接痕裂开的现象←厂一在试8><#004699'>f飞锤伸豆屈冲-服T击E强试一再度验-远(MEPE时针政转法TIRζ10%,)二三50管罩叫试验压力试验时间啤巳('C)I(MPa)I(h)S6>.36>.5620s58>.76l5410>.94S6>.34>.1060S55>.,17无事漏或\nl无破裂幢S46>.84压S6>.31>.20试验80Sδ1>.593000541>.99压应力2043>.0l无破裂，955>.6165无事漏954>.61000l!\稳定953>.68760性试验902>.851752090;C??20'CS6>.30>.6无破裂，无曹漏热循环\n→90;C为S50>.85000次试验周期>.30min541>.0??5??3>.0>.7与金属管道和给水栓，阀门等螺纹连接的塑料管件，应带有耐腐蚀金属螺纹嵌件，其螺纹应符合((550密封管螺纹》GB/T7306-2000的要求，其拉伸屈服强度和接口密封试验压力不得低于表3>.0>.6的规定。3>.O>.8与管道连接的活接头、管堵、法兰，其拉伸屈服强度和接口密封试验压力不得低于表3>.O>.6的规定。6??4设计4>.1-触规定\n4>.1>.1建筑给水用氯化聚氯乙烯管材应根据管道工作压力、输水温度和管道敷设场合，按下列规定进行选择:1多层建筑冷水管道可采用S6>.3系列，热水管道可采用S5系列g2高层建筑冷水管道可采用S5系列，热水管道可采用S4系列。3当室外冷水管道的工作压力不大于1>.OMPa时，可采用S6>.3系列;当其工作压力大于1>.OMPa时，应采用S5系列。4室外热水管道可采用S5系列。!t，高层建筑主干管道和草房内管道宜果Itl金属管或金属与塑料复合肾。4>.2管道布置和敷设4>.2>.1军外冷水管道可直敷于土壤中，热水管道应架空敷设或安装于地下管沟内。4>.2>.2言外埋地管道除满足防冻要求外，还应符合下列要求1在非车行道<#004699'>F覆土深度不宜小于O>.5m;2在车行道下覆士深度不得小于O>.7m;4>.2>.3室内管道宜在管井、管窿、吊顶内暗设或嵌墙敷设，以及在\n楼(地)丽的找平层内直埋敷设。在钢筋混凝土剪力墙部位宜明设。4>.2>.4管道不得浇注在:钢筋混凝土墙、板、桩、梁肉。在找平层内宣埋和嵌墙敷设的管道，管径不宜大于25mm，4>.2>.5管道不得沿灶台边明设，立管距家用灶具边不得小于O>.4m。4>.2>.6管道不得与燃气水加热器直接连接，应用长度不小于150mm的耐腐蚀金属管道连接。4>.2>.7冷水立管穿越楼板、屋面时，穿越部位应作为固定支承点，并应做好防渗漏措施。热水立管穿越楼板部位应设套管。4>.2>.8明装管道不得穿越卧室、贮藏室、变配电室、烟道、风道等。4>.2>.9管道不宜穿越建筑物沉降缝、伸缩缝和变形缝。当必须穿越时，应采取防沉降或防伸缩措施。4>.2>.10管道穿越地下室外墙和水池〈箱)池壁时，应设刚性或柔性防水套管，并有可靠的防渗和固定措施。4>.3管道补偿\n4>.3>.1架空明敷管道应设支、吊架，并应利用管道转弯处的自由臂或偏置，补偿管道的伸缩变形。补偿量应根据水温、环境温度和管道长度按公式(4>.3>.1-])和(4>.3>.1-2)确定zLlL=Llt>.L??α(4>.3>.11)Llt=0>.65Llι十0>.10Llt，(4>.3>.1-2)式中LlL管道因温度变化引起的伸缩变形(mm);L→一管段计算长度(m);α→管材线膨胀系数Cmm/m;C)，可取0>.07，Llt-管道计算温差(;C)，Llt，一→-管道内水的最大温差CC)，Llt,-管道外环境的最大温差CC)。4>.3>.2管道利用转弯处的自由臂进行补偿时，最小自由臂长度可按下式计算确定2Lz二K>.JLlL'd，(4>.3>.2)式中Lz-一最小自由臂长度(mm)，K一一材料比例系数，可取34，LlL--自固定支承点到j转弯处的管道伸缩变形(mm)，按??8??\n公式(4>.3>.1-1)计算确定，d,→管道的外径(mm)>.注自由臂长度与管径、管道伸缩量之间芫革见附最Bo4>.3>.3立管接出的横支管、横干管接出的立管和横支管接出的分支管均应偏置，其自由臂长度应按公式(4>.3>.2)计算a偏置的自由臂与接出的立管或横干管、支管的轴线间距不得小于O>.2m>.4>.3>.4当直线管段较长时可设置E形、Q形或形等专用伸缩器。伸缩器的压力等级应与管道设计压力匹配‘旦管段的最大伸缩量应小于伸缩器的最大补偿量。4>.3>.5室外直埋管道和室内直埋于墙体或楼板找平层内的冷水支管可不考虑管道的伸缩。4>.3>.6热水管敷设在地下管沟内且直线距离较长时，应设置专用伸缩器。4>.3>.7设计管道固定支架时，应考虑承受管道因温度变化而引起的胀缩力。4>.3>.8管道输送冷水或热水时在管道轴线方向产生的胀缩力，可按下列公式计算:\nσ=α>.t1t>.E<#004699'>F=;>.A式中<#004699'>F→一胀缩力(N)，「→一胀缩应力(N/mm')，α-一线膨胀系数(m/m>.C)，可取7XIO-5，(4>.3>.8-1)(4>.3>.8-2)t1t←一最高使用温度与安装时环境温度之差CC)，E-←一管材纵向弹性模量(N/mm')，可取3400，A--管道截面面积(mm')>.4>.4管道水力计算4>.4>.1管道水头损失计算应符合下列规定=1管道单位*度沿程水头损失应按下列公式计算，或按附录A确定。冷水管\n巴川叫(4>.4>.1-1)热水管巳俨×(4>.4>.1-2)式中'L冷水管单位长度水头损失(kPa/m);'R一一-热水管单位长度水头损失(kPa/m);q一一-设计流量(m3/sl;d,管道计算内径(m)。注>.式中热水管道计算温度为60>.C;冷水管计算温度为lO;C>.2建筑物内管道局部阻力，可按沿程水头损失的25%~30%计算。3管道配件和附件的局部阻力，可按表4>.4>.1折算为管长计算。表4>.4>.1管件和阔的局部阻力折算曹长折算营长(m)\n告称外径d;(mm)450弯头二通丁通闸间单向阀90'弯头(分流)(直班〉球阀角阀20。750>.451>.20>.240>.156>.03>.61>.6250>.90>.541>.50>.270>.187>.54>.52>.0321>.2。721>.80>.360>.2410>.55>.42>.5100>.92>.10>.450>.3013>.56>.63>.1:51)2>.11>.23>.00>.600>.3916>.58>.14>.0632>.41>.53>.60>.750>.4819>.510>.24>.67s3>.01>.84>.50>.900>.6324>.012>.05,7903>.52>.15>.41>.050>.7030>.014>.36>.61104>.22>.46>.31>.200>.8137>.516>.57>.6\n1255>.13>.07>.51>.500>.9942>.021>.010>.01106>.03>.69>.01>.801>.2049>.524>.012>.01606>.84>.010>.22>.001>.3055>.026>.014>.04>.4>.2冷热水管公称外径与计算内径的关系可按表4>.4>.2确定。10??表4>.4>.2营造公称外径与计算内径对照囊(mm)4>.4>.3给水管的水流速度可按表4>.4>.3选用。表4>.4>.3水流速度公称外径dn(mm)流速叫m/s)~32<1>.240---75<1>.5二三90<2>.04>.5防冻、隔热、保温\n4>.5>.1室外直埋管道的埋置深度，应在冰冻线以下O>.20m>.4>.5>.2对室外明露的管道及室内有可能受冰冻的管道，应采取保温、防冻措施。4>.5>.3对受阳光照射的明敷管道，应采取隔热措施。4>.5>.4室内外明露和在管沟内敷设的热水管道，应采取保温措施。注。直埋于墙体内的热水配水主管可不保温a4>.5>.5保温层厚度应根据管径、管路允许温降、环境温度、保温材料导热系数等经计算确定。注·氧化罪氧乙烯营造的导热革数宜取O>.16W/(m'>.C),4>.5>.6当管道有可能结露而损坏物品、原料和影响卫生时，应采取防结露措施。t!>.5施工\n5>.1一般规寇5>.1>.1管道施工前应具备下列条件z要;1施工设计图及有关文件齐全，并已经会审;2施工方案和施工组织设计已进行技术交底;3施工机具已经到场，4施工场地及施工用水、用电、材料存放场地等满足施工需5施工人员经过氯化聚氯乙烯管道安装的技术培训。5>.1>.2到达工地的管材、管件应符合国家现行有关标准的要求，且有生产企业的产品安装说明书和合格证。5>.1>.3粘接剂应为氯化聚氯乙烯管专用，且有生产企业的产品合格证、产品保质期和安全使用说明书。5>.1>.4施工安装时，应复核冷、热水管道的压力等级和种类，不同压力等级的管道不得混装。5>.1>.5管道安装过程中应防止油漆、沥青、丙酣、稀释剂等有机溶剂直接接触管壁。5>.1>.6管道搬运时不得抛、摔、滚、拖。管道应存放在阴凉、通风的库房或棚内，防止阳光直射。\n5>.1>.7粘接剂和清洁剂应存放在危险品库房内，远离火源。5>.1>.8管道间断施工时，管口应及时做临时封堵。5>.2管道敷设5>.2>.1管道应先进行室内地坪土0>.00以下至基础外墙段敷设，然后进行室外敷设。12??5>.2>.2室外埋地管道应按设计覆士厚度和管径开挖管沟。管沟内不得有突出的尖硬物块。管道可直接敷设在未经扰动的原土上。5>.2>.3室内埋地管道应在土建工程回填穷实后，重新开挖敷设。5>.2>.4埋地管道回填时，因填土中不得夹杂尖硬物块。应根据管道下部的土质情况，采取奈实、砂垫或局部素混凝土垫层加固o5>.2>.5建筑给水引人管穿越基础或地下室墙(梁)时，应设置金属套管，并应采取防水措施。5>.2>.6冷水立管穿越楼板、屋面时，其空隙部位应采用C20细石混凝土分二次浇捣密实。采用Ml0水泥砂浆在立管周围砌筑阻\n水圈，其高度不宜小于25mm，5>.2>.7热水管穿越楼板、墙壁时应预留套管。立管套管应离出地面50mm，套管底部应与楼板底齐平。套管内径应比管道外径大50mm。~，t管道与套管之间的环形空隙，当为地下套管时，应先用防水胶泥封堵，再用Ml0水泥砂浆填实;当为地上套管时，应用油麻填实。5>.2>.8管道嵌埋敷设应符合下列规定:1嵌墙敷设或在找平层中埋设时，管道外径不得大于25mm;2管道不得采用非粘接连接管件;3管道在槽内应设管卡，其间距可取1>.Om;4墙槽的宽度不宜小于管外径do加30mm，深度不宜小于do加30mm，墙槽应横平竖直。管道试压后应用M7>.5水泥砂浆填补密实。5>.2>.9管道中设置的补偿器和转弯自由臂>.应按设计要求确定。5>.2>.10管道支承点的最大问距，可按表5>.2>.10确定。\n13??褒5>.2>.10管道支承点最大间距(mmJ5>.2>.11明敷管道应根据设计要求设置固定支架。5>.2>.12固定支架应采用金属件。紧固件应衬橡胶垫，不得损伤管材表面。5>.2>.13活动支吊架不得支承在管道配件上，支承点距配件不宜小于80mm，5>.2>.14伸缩接头的两侧应设置活动支架，支架距接头承口边不宜小于80mm，5>.2>.15阀门和给水栓处应设支承点。5>.3管道连接5>.3>.1管道的粘接连接应按下列工序进行z1管道切割应采用于工锯或切管机，不得采用盘锯;2切割后的管端应去除切屑和毛边，并在端困外轻倒角，倒角宜为150~200;\n3用清洁布将管与配件连接端部擦干净，若连接部位有油污，应采用丙酬等清洁剂将其擦净g4将管试插人承口至插不进为止，在管上标出插人深度标线，试插深度应为承口深度的1/3~3/4，并在管上标出承口深度标线，5应采用暴刷或尼龙刷涂刷粘接剂，刷子宽度应为管径的1/3~1/2，先涂承口，后涂插口(当d;~三75mm时，应由二人同时涂刷承口和插口)，应轴向涂刷，重复2~3次。涂刷承口应由里向外，涂刷插口应从承口深度标线至管端;6应迅速将涂了粘接剂的管子插入配件(插入时应确保粘接面湿润)，直至承口深度标线。不得采用锤子敲人。当管径大于75mm时，宜采用机械插入，并保证承插接口的直度。在保持[I>.J间内不得松懈，插入保持时间可按表5>.3>.1确定p襄5>.3>.1插入保持时间公称外径do保持时间(s)(mm}\n夏季冬季20-5015~303O~60卜63---16030----6060---1207在达到插入保持时间后，应用布擦净多余的粘接剂，并静置15min;8粘接操作不宜在oc以下的低温环境中进行。5>.3>.2与其他种类的管材、金属阀门、设备装置的连接，应采用专用嵌螺纹的或带法兰的过渡连接配件。5>.3>.3管道螺纹连接应符合下列要求:1螺纹连接专用过渡件的管径不宜大于63mm;2严禁在管子上套丝口33螺纹连接应采用聚四氟乙烯生料带做填料，不得使用麻丝、稠白漆。5>.3>.4管道法兰连接应符合下列要求>.1法兰孔应对准连接的阀门、设备的法兰孔;2法兰与管道粘接连接后，应按表5>.3>.1保持插入时间，并在静止15min后方可进行法兰连接。\n5>.3>.5与铜管连接时，应先将铜质内螺纹管接头或法兰与铜管进行纤焊，待冷却后再进行管道连接。15??5>.4施工安全/5>.4>.1粘接剂和清洁剂等易燃物品应远离火源。施工场地应通风良好。在进行粘接工序时，操作人员应戴防护眼镜和手套。5>.4>.2粘接剂、清洁剂应存放在儿童无法触及的地方。5>.4>.3不得使用不清洁布或赤子涂抹粘接剂和清洁剂。5>.4>.4盛放粘接剂、清洁剂的容器应随用随开，不用时应立即盖严。5>.4>.5施工残留的<#004699'>f占有粘接剂、清洁剂的棉纱和材料，应在每日施工结束后及时清除。5>.4>.6不得使用变浓或成凝胶体的粘接剂。冬季施工时如发现粘接~J结冻，应用温水加热，不得以明火烘烤。5>.4>.7直埋、嵌装的管道，应在地面、墙面标明管道位置和走向。\n严禁在管道上冲击钻孔、钉金属钉等。5>.4>.8粘接施工时严禁烟火。??16??6检测与验收6>.1试压6>.1>.1管道系统的试压不得采用气压试验。6>.1>.2管道系统应在管道连接后，并在常温下养护24h后，进行水压试验。6>.1>.3水压试验前应将管道有效固定，并将管段末端封堵。6>.1>.4试验压力应取管道系统工作压力的1>.5倍，但不得小于O>.6MPao6>.1>.5对直埋和嵌墙敷设的管道，试压应在面层浇捣和封堵前进行。6>.1>.6水压试验应按下列步骤进行:1缓慢地向试压管段中注水，将管内气体排出$z充满水后，进行水密封性检查;\n3启动手撤泵加压，升压时间不应小于lOrnin;4升lli至试验压力值后停止加压，稳压lh后观察接点部位，不得有渗漏现象$5补压至试验压力值，在15min内压力降低不超过O>.05MPa为合格:6在管道试压过程中，如发现漏水和压力降低超过规定值，应检查管路，排除渗漏后再重新试压，直至符合要求。6>.1>.7在寒冷环境中试压时应采取防冻措施，并在试压后及时将水放空。6>.2消毒、清洗6>.2>.1生活饮用水管道经试压合格后应及时将水放空，并采用17??20~30mg/L的有效氯溶液注入管道内进行浸泡消毒，浸泡时间不得小于24人6>.2>.2管道消毒后应以饮用水冲洗，并请有关部门取样检验。当水质符合现行国家标准《生活饮用水卫生标准))GB5749的要求\n后，方可交付使用。6>.3验收6>.3>.1竣工验收时，应具备下列文件:1施工图、竣工图和设计变更文件:2管材、管件和主要管道附件等的出厂合格证，或产品检验报告;3隐蔽工程验收和中间试验记录34水压试验记录p5生活饮用水管道的消毒和通水清洗记录;6工程质量事故处理记录p7工程质量检验记录。6>.3>.2工程竣工质量验收应按国家现行有关标准的规定进行。重点检查下列内容:1管径、标高、坡度的正确性;2冷热水管材、管件配置的正确性g3管道支、吊架安装位置、间距的正确性和牢固性，活动、固定支架的设置是否符合规定，4管道伸缩变形补偿措施的正确性，是否按图施工:5给水栓和各类阀门的启闭灵活性及支承点的牢固性。\n??18??附录A建筑给水氯化聚氯乙烯管道水力计算表A>.O>.l管系列创>.3的冷水(WC)水力计算，可按表A>.0>.1确定。表A>.O>.l塑料给水管(56>.3)水力计算表dn20(mm)dn25(mm)dn32(mm)dn40(mm)施量qdJO>.ü160(m)dJO>.ü210(m)dJO>.ü272(m)djO>.0340{m)(m'/h)(l!~)时m/S)i(kPa/m)v(m/s}i(kPa/m)v(mhll(kPa/m)v{m/s)i(kPa/m)0>.3600>.1000>.500>.269??-0>.3960>.1100>.550>.3190>.4320>.1200>.600>.372卜一一0>.4680>.1300>.650>.4290>.5040>.1400>.70O>.>.189\n0>.5400>.1500>.750>.553口>.5760>.1600>.800>.6200>.6120>.1700>.850>.6910>.490>.189-----??0>.6480>.1800>.900>.7640>.520>.2090>.6840>.1900>.940>.8410>.550>.230。，720>.2000>.990>.9220>.<580>.2520>.900>.2501>.2>.11>.3690>.720>.374←一一1>.080>.3001>.491>.8920>.870>.5170>.520>.1501>.260>.3501>.742>.4871>.010>.6790>.600>.1971>.44。>.4001>.993>.1521>.150>.8600>.690>.250口，620>.4502>.243>.8841>.301>.0600>.770>.3080>.500>.1061>.800>.5002>.,194>.6821>.441>.2780>.860>.3720>.550,1281>.980>.5502,745>.5451>.591>.5140>.950>.4400>.610>.152??19??\n续襄A>.O>.ldn20(mm)dTI2S(mm)dn3Z(mm)dn40(mm)施量qdjO>.ü160(m)dJO>.ü210(m)dJO>.ü272(m)dJO>.ü340(m)(m3/h)(!/s)v(m/s)i(kPa/m)v(m/的i(kPa/m)v{m/s)j(kPa/m)v(m/的j(kPa/m)2>.160>.6002>.986>.4701>.731>.7661>.030>.5140>.660>.1772>.340>.6503>.237>.4571>.882>.0361>.120>.5920>.720>.2042>.520>.7002>.022>.3221>.200>.6750>.770>.2332>.700>.7502>.172>.6241,29。7630,830>.2632>.880>.8002>.312>.9431>.380>.8560>.880>.2953>.060>.8502>.453>.2771>.460>.9530>.940>.3283>.240>.9002>.603>.6271>.551>.0550>.990>.3633>.420>.9502>.743>.9921>.631>.1611>.050>.400\n3>.601>.0002>.894>.3721>.721>.2711>.100>.4383>.781>.0503>.034>.7671>.811>.3861>.160>.4783>.961>.1001>.891>.5061>.210>.5194>.141>.1501>.981>.6291>.27。噜5614>.321>.2002>.071>.7571>.320>.6064>.501>.2502>.151>.8891>.380>.6514>.681>.3002,242>.02S1>.430>.6984>.861>.3502>.322>.1651>.490>.7465>.041>.4002>.412>.3101>.5-10>.7965>.221>.4502>.502>.4<581>.600>.8475>.401>.5002>.<582>.6101>.650>.9005>.<581>.5502>.672>.7671>.710>.953\n5>.761>.6002>.752>.9271>.76l>.0095>.941>.6502>.843>.0911>.821>.0656>.121>.7002>.933>.2591>.871>.1236>.301>.7503>.013>.4311>.931>.1836>.481>.8001>.981>.2,136>.661>.8502>.041>.3056>.841>.9002>.091>.36820??第褒A>.O>.ldn40(mm)dn50(mm)dn63(mm)dn75(mm)施量qdjO>.ü340(m)djO>.0426(m)dJO>.ü536(m)djO>.ü638(皿)(m3/h)(ifs)v(m/s)j(kPa/m)。(m/。i(kPa/m)v{m/的i(kPa/m)v(m/s}i<kPa/m)\n2>.520>.7000>.770>.2330>.490>.0792>.700>.7500>.830>.2630>.530>.0902>.880>.8000>.880>.2950>.560>.1013>.060>.8500>.940>.3280>.600>.1123>.240>.9000>.990>.3630>.630>.1243>.420>.9501>.050>.4000>.670>.1363>.601>.0001>.100>.4380>.700>.1493>.781>.0501>.160>.4780>.740>.1633>.961>.1001>.210>.5190>.770>.1770>.490>.0594>.141>.1501>.270>.5610>.810>.1910>.510>.0644>.321>.2001>.320>.6060>.840>.2060>.530>.0694>.501>.2501>.380>.6510>.880>.2220>.550>.0744>.681>.3001>.430>.6980>.910>.2380>.<580>.079\n4>.861>.3501>.490>.7460>.950>.2540>.600>.0855>.041>.4001>.540>.7960>.980>.2710>.620>.0915>.221>.4501>.600>.8471>.020>.2890>.640>.0965>.401>.5001>.650>.9001>.050>.3070>.66。1025>.<581>.5501>.710>.9531>.090>.3250>.690>.1095>.761>.6001>.761>.0091>.120>.3440>.710>.1150>.500>.0505>.941>.6501>.821>.0651>.160>.3630>.730>.1210>.520>.0536>.121>.7001>.871>.1231>.190>.3830>.750>.1280>.530>.0566>.301>.7501>.931>.1831>.23??>.4030>.780>.1350>.550>.0596>.481>.8001>.98l>.2431>.260>.4240>.800>.1420>.560>.0626>.661>.8502>.041>.3051>.300>.4450>.820>.1490>.<580>.06521??\n结襄A>.O>.ldn40(mm)dn50(mm)dn63(mm)dn75(mm)流量qdjO>.ü340(m)dJO>.0426(m)djO>.0536(m)dJO>.ü638(m)(m3jh)(1/,)v(m/s)j(kPa/m)v(m/s)j(kPa/m)四(m/s)??(kPa/m)时m/s)i(kPa/m)6>.841>.9002>.091>.3681>.330>.4660,840>.1560>.590>.068时021>.9502>.151>.4331>.370>.4880>.860>.1630>.610>.0717>.202>.0002>.201>.4991>.400>.5110>.890>.1710>.630>.0747>.562>.1002>.311>.6341>.470>.5570>.930>.1860>.660>.0817>.922>.2002>.421>.7751>.540>.6050>.970>.2020>.690>.0888>.282>.3002>.531>.9201>.610>.6541>.020>.2190>.720>.0958>.642>.4002>.642>.0711>.680>.7061>.060>.2360>.750>.1039>.002>.5002>.752>.2261>.750>.7591>.110>.2530>.780>.1109>.362>.6002>.862>.3871>.820>.8131>.150>.2720>.810>.118\n9>.7Z2>.7002>.972>.5521>.890>.8701>.200>.2900>.840>.126>0>.082>.8003>.082>.7221>.960>.9281>.240>.3100>.88。>.13510>.442>.9002>.030>.9871>.290>.3300>.910>.14410>.803>.0002>.101>.0481>.330>.3500>.940>.15211>.163‘1002>.171>.1111>.370>.3710>.970>.16211>.523>.2002>.251>.1761>.420>.3931>.000>.171)1>.883>.3002>.321>.2421>.460>.4151>.030>.18112>.243>.4002>.391>.3091>.510>.4371>.060>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2047>.00171>.0047>.50\n172>.8048>.00174>.6048>.50176>.4049>.001178>.2049>.50180>.0050>.00181>.8050>.50183>.6051>.00185>.4051>.50187>.2052>.00189>.0052>.50190>.8053>.00192>.6053>.50194>.4054>.00\n196>.2054>.50」??34??A>.O>.2管系列S5的冷水(lO'C)水力计算，可按表A>.O>.2确定e表A>.O>.2塑料给水管(S5)水力计算表dn20(mm)do2日mm)dn32(mm>dn40(mm)流量qd]O>.ü160(m)djO>.204(m)dJO>.ü262(m)djO>.ü326(m)(m~/h)<l!s)v(m/s)j(kPa/m)以m/s)j(kPa/m)v(m!s>.)>.j(kPa/m)v{m/s)j(kPa/m}0>.3600>.100>.500,2690>.396O>.110>.550>.3190>.4320>.120>.600>.3720>.4680>.130>.650>.429\n0>.5010>.140>.700>.4890>.5400>.150>.750>.5530>.5760>.160>.800>.6200>.490>.1940>.6120>.170>.850>.6910>.520>.2170>.6480>.180>.900>.7640>.550>.2400>.6840>.190>.940>.8410>.<580>.2640>.72。200>.990>.9220>.610>.2890>.900>.251>.24L3690>.760>.4290>.460>.1301、080>.30I电491>.8920>.920>.5930>.560>.1801>.260>.351>.742>.4871>.070>.7800>.650>.2361>.440>.401>.993>.1521>.220>.9880>.740>.2990>.480>.1051>.620>.452>.243>.8841>.381>.2180>.830>.3690>.540>.130\n1>.800>.502>.494>.6821>.531>.4680>.930>.44-50>.50。1571>.98o>.ss2>.745>.545l>.681>.7381>.020>.5260>.660>.1852>.160>.602>.9R6>.4701>.842>.0291>.110>.6140>.720>.2162>.340>.653>.237_4571>.992>.3381>.210>.7080>.780>.2492>.520>.702>.142>.6671>.300>.8080>.840>.2842>.700>.752>.293>.0141>.390>.9130>.900>.322??35??续襄A>.O>.2dn20(mm)dn2S(mm)dn3Z(mm)dn40(mm)植量qdJO>.0160(m)djO>.204(m)djO>.0262(m)dJ??>.0326(m)(m3/h)(1/5)时m/的;(kPa/m)v(m/s)j(kPa/m)v(m/s)j(kPa/m)v(m/的j(kPa/m)\n2>.880>.802>.453>.3791>.481>.0230>.960>.3613>.060>.852>.603>.7631>.<581>.1401>.020>.4013>.240>.902>.754>.1651>.671>.2611>.080>.4443>.420>.952>.914>.<5841>.761>.3881>.140>.4893>.601>.003>.065>.0211>.851>.5201>.200>.5363>.781>.051>.951>.6<581>.260>.<5843>.961>.102>.041>.8011>.320>.6344>.141>.152>.131>.9481>.380>.6864>.321>.202>.232>.1011>.440>.7404>.501>.252>.322>.2591>.500>.7964>.681>.302>.412>.4221>.560>.8534>.861>.352>.502>.<5891>.620>.912\n5>.041>.402>.602>.7621>.680>.9735>.221>.452>.692>.9391>.741>.0355>.401>.502>.783>.1211>.801>.1005>.<581>.552>.883>.3081>.861>.1655,761>.602>.973>.5001>.921>.2335>.941>.653>.063>.6961>.981>.3026>.121>.702>.041>.3736>.301>.752>.101>.4456>.481>.802>.161>.5196>.661>.852>.221>.5956>.841>.902>.281>.67236??\n续表A>.O>.2dn40(mm)dn5ü(mm)dn63(mm)dn7S(mm)流量qdJO>.0326(m)dJO>.0408(m)djO>.0514(m)djO>.0614(m)(m3/h)(ijs)时m/s)j(kPa/m)ψ(m/s)i(kPa/m)v(m/s)j(kPa/m)v(m/s)HkPa/m)2>.340>.650>.780>.2490>.500>.0852>.520>.700>.840>.2&40>.54口>.0972>.700>.750>.900>.3220>.570>.1102>.880>.800>.960>.3610>.610>.1243>.060>.851>.020>.4010>.650>.1383>.240>.901>.080>.4440>.690>.1523>.420>.95t:140>.4890>.730>.1683>.601>.001>.200>.536。，760>.1840>.480>.0613,781>.051>.260>.<5840>.800>.2000>.510>.066\n3>.,961>.101>.320>.6340>.840>.217。‘53。‘0721>.141>.151>.380>.6860>.880>.2350>.550>.0784>.321>.201>.440>.7400>.920>.2540>.<580>.0841>.501>.251>.500>.7960>.960>.2730>.600>.0914>.681>.301>.560>.8530>.990>.2920>.630>.0974>.861>.351>.620>.9121>.030>.3130>.650>.1045>.041>.401>.680>.9731>.070>.3330>.670>.1115>.221>.451>.741>.0351>.110>.3550>.700>.1180>.490>.0505>.401>.501>.801>.1001>.150>.3770>.720>.125。510>.0545>.<581>.551>.861>.1651>.190>.3990>.750>.1330>.520>.0575,761>.601>.921>.2331>.220>.4220>.770>.1400>.540>.0605>.941>.651>.981>.3021>.260、446。‘80。咽1480>.560>.0636>.121>.702>.041>.3731>.300>.4700>.820>.1560>.570>.067\n6>.301>.752>.10l>.4451>.340>.4950>.84。1640,59。，070I6,481>.802,161>.5191>.38。，5210,870,1730>.610>.074??37??续表A>.O>.2dn40(mm)dn50(mm}dn63(mm)dn75(mm)流量qdJO>.ü326(m)djO>.Q40B(m)djO>.ü514(m)dJO>.0614(m)(m3/h)(\j,)时m/s}i(kPa/m)v(m/s}iCkPa/m)v(m/s)i(kPa/m)v(m/s)i(kPa/m)6>.661>.852>.221>.5951>.420>.5470>.890>.1810>.620>.0786>.841>.902>.281>.6721>.450>.5730>.920>.1900>.640>.0817>.021>.952>.341>.7511>.490>.6000>.940>.1990>.660>.0857>.202>.002>.401>.8321>.530>.6280>.960>.2080>.680>.089\n7>.562>.102>.521>.9971>.610>.6841>.010>.2270>.710>.0977>.922>.202>.642>.1691>.680>.7431>.060>.2470>.740>.1068>.282>.302>.762>.3471>.760>.8041>.110>.2610>.780>.1148>.642>.402>.882>.5311>.84。>.8671>.160>.2880>.810>.1239>.002>.503>.002>.7211>.910>.9321>.200>.3100>.840>.1329>.362>.601>.991>.0001>.250>.3320>.880>.1429,722>.702>.071>.0691>.300>.3550>.910>.15210>.082>.802>.141>.1401>.350>.3780>.950>.16210>.442>.902>.221>.2131>.400>.4030>.980>.17210>.803>.002>.291>.2881>.450>.4281>.01。18311>.163>.102>.371>.3661>.490>.4531>.050>.19411>.523>.202>.451>.4451>.540>.4801>.080>.20511>.883>.302>.52~>.5261>.590>.5071>.110>.217\n12>.243>.402>.601>.6091>.640>.5341>.150>.22912>.603>.502>.681>.6941>.690>.5621>.180>.24112>.963>.602>.751>.7801>.730>.5911>.220>.25313>.323>.702>.831>.8691>.780>.6211>.250>.26613>.<583>.802>.911>.9601>.830>.6511>.280>.27B14>.043>.902>.982>.0521>.880>.6811>.320>.29211>.404>.003>.062>.1461>.930>.7131>.350>.30538??续表A>.O>.2dn63(mm)dn75(mm)dn90(mm)d;llO(mm)流量qdJ??>.0514(m)djO>.0614(m)dJ??>.0736(m)dJO>.0900(m)\n(m3/h)(!Js)v(m/s)i(kPa/m)v(m/日)i(kPa/m)v(m/时i(kP且/m)v(m/s)i(kPa/m)7>.562>.101>.010>.2270>.710>.097O>.,190>.0117>.922>.201>.060>.2470>.74。1060>.520>.0448>.282>.301>.110>.257。7R0>.1140>.540>.0488>.642>.401>.160>.2880>.81。1230>.560>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28>.502>.350>.275104>.4029>.002>.390>.283106>.2029>.502>.430>.292108>.0030>.002>.48。>.301109>.8030>.502>.520>.310111>.6031>.002>.560>.319113>.4031>.502>.600>.328115>.2032>.002>.640>.338117>.0032>.502>.680>.341118>.8033>.002>.7Z0>.356)」\n??82??(EEV叫屈州中gh串西咀时间E【h队K\也\入队\\h队书队h叭K快讯1飞迟迟总\n~~l\怀~;1;t\1\~\~己，;9>.~??;2R自~iPt5!i~~g耻剧远Elil:?l~s:~<#004699'>f2巳~::曰>.>.Ewm制酬蟹惹得碍事，剧半缸钮也∞w响运>.83??幸蟹嗣:;j本规程用词说明一、为便于在执行本规程条文时区别对待，对要求严格程度不\n同的用词说明如下21表示很严格，非这样做不可的g正面词采用;必须;，反面词采用;严禁2表示严格，在正常情况下均应这样做的z正面词采用;应;，反面词采用;不应;或;不得3表示允许稍有选择，在条件许可时，首先应这样做的g正面词采用;宜;或;可;，反面词采用;不宜气二、条文中指定按其他有关标准执行时，写法为;应按;…·执行;或;应符合>.>.…·要求(或规定);084??中国工程建设标准化协会标准建筑给水氯化聚氯乙烯CPVC-C)管管道工程技术规程\nCECS136I2002条文说明目次1总Jj\tl>.>.>.>.>.……>.>.>.>.>.>.………………>.>.>.>.>.>.>.>.………………>.(89)3材料>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.………>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.…>.>.>.>.>.>.>.>.……(90)4设计………………>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.……>.>.>.>.>.>.>.……(91)4>.1一般规定……>.>.>.>.>.>.>.>.……………………………·ωυ4>.2管道布置和敷设>.>.>.>.>.…………………>.>.>.>.>.>.>.>.r……>.>.ωυ4>.3管道补偿……………………………………>.>.>.>.>.>.>.ωυ4>.4管道水力计算…>.>.>.>.>.>.>.>.……………………………>.>.(92)4>.5防冻、隔热、保温…………………a…………………>.(92)5施工……………>.>.>.>.>.>.>.………………………………·ωω\n5>.1一般规定………………………………………………ωω5>.2管道敷设……………………………………………(93)5>.3管道连接…………………………………………>.>.>.ωω5>.4施工安全…………………………………………>.>.>.>.>.(94)6检测与验收…>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.>.…>.>.(95)1总则本规程规定的管道适用压力系根据主程经验而定>.热水管道设计压力不大于O>.6MPa>.冷水管道设计压力不大于1>.OMP>.>.基本上适用于高层建筑给水分区部分的干管与支管及多层建筑于管和支管的管道。高层建筑水泵提升的压力管道，应采用金属管和钢塑复合管>.给水温度不大于75;C的规定，系根据《建筑给水排水设计规范>>GBJ15-88的97年修订版中关于热水锅炉和水加热器出水最高水温的规定。1>.0>.3PVC-C管道采用粘接剂连接。由于目前尚元PVC-C粘接剂的产品标准，粘接剂应由管道制造商配套供应。??89??\n3材料3>.O>.2粘接剂含有有机溶剂，易挥发，如长期不用或过期使用，将影响粘接质量。有机洛ífll属易燃物质，放在盛装容器上应有防火警示标志。3>.0>.3本条是对塑料管材和管件的通用要求。对管壁不透光的要求是为了防止水中有机物发生光合作用而滋生藻类，影响水质。3>.O>.4-3>.O>.6管材的规格和物理力学性能系摘自产品标准《冷热给水用氯化聚氯乙烯(PVC-C)管道系统》送审稿。??90??4设计4>.1-般规定4>.1>.1本条规定了选用PVC-C管材所考虑的原则>.在ISO标准中列出的在不同温度和使用寿命下压力的线性表显示s管道输水温度上升，其允许压力急剧下降;随着时间增长，其允许压力也逐渐下降。故选择管材压力等级时应考虑安全系数。为使用方\n便，本条规定按高层和多层以及冷水和热水划分选用系列。4>.2管道布置和戴设4>.2>.2氯化聚氯乙烯管材与硬聚氯乙烯管材均属硬性塑料管，弹性模量相仿。本条系参照《埋地硬聚氯乙烯(PVC-U)给水管道工程技术规程>>CECS17'2000确定。4>.2>.3氯化聚氯乙烯管材虽然属硬性管，但其膨胀系数要比钢管大，特别是热水管易变形，故宜暗设。钢筋混凝土剪力墙不能开槽，故只能明敷或用混凝土附加砖墙包覆。4>.2>.4管道不得直接浇注在钢筋混凝土墙、板、柱、梁内的规定，是考虑到塑科管容易在结构混凝土施工过程中受损坏，影响安全供水，也影响建筑结构安全。本条规定嵌墙的管道管径不宜大于25mm，是出于结构安全考虑。德国DINI053标准也专门对墙体开槽作出了规定。我国承重墙的厚度一般为240mm，25mm管子开槽50mm，对墙体结构影响不大。管道也可埋设于楼板找平层中。因找平层厚度有限，只能埋设管径为25mm的管道。4>.2>.6虽然氯化聚氯乙烯管道耐温性能相当好，但在燃气水加热器附近的管道受到燃气燃烧火焰的辐射，易老化。\n91??4>.3管道补偿4>.3>.3本条引自日本耐热性聚氯乙烯管道设计、施工技术资料。4>.4管道水力计算4>.4>.1水力计算中，沿程水头损失按塑料光滑管的摩阻系数确0>.25定，λR~22&;水的运动粘滞系数以m'/s)值，按输送水温确定。本条中采用热水管道计算温度60;C，冷水管远计算温度lO;C，已在附录A中制成计算用表。局部阻力计算有两种方法，一种是按沿程水头损失估算，另一种按管道的配件、附件折算成管长计算。表4>.4>.1系摘自日本的设计施工资料。4>.5防冻、隔热、保温4>.5>.4氯化聚氯乙烯管材导热系数小，故埋于墙体内的热水管道可不保温，墙体开槽也可小一些，影响结构安全性小。在室内外明敷和在管沟内敷设的管道一般是干管，为保证管路温降和配水点\n所需的热水温度，这些管道应采取保温措施。92??5施工5>.1一般规定5>.1>.4一幢建筑物内有冷水管和热水管，所采用的管系列不一样，故施工时A定要加以区别，不得混装，否则影响工程质量，降低管道使用寿命。5>.1>.5氯化聚氯乙烯管材属有机管材，可被有机溶剂溶化，因而油漆、沥青、丙翻、稀释剂中的有机溶剂侵蚀，会影响管材的强度。5>.2管道敷设5>.2>.10本条的规定是在中山环宇实业有限公司编制的《应用技术指引》的基础上，参考日本某公司《耐热硬质聚氯乙烯管道设计和施工手册》确定的。热水管的支承间距不足，会造成管道弯曲、积气、管道输水不畅。\n5>.2>.13,5>.2>.14本条引自日本某公司设计手册。活动支架如支承在管件上或支承点距配件太近，将会影响管道伸缩。5>.2>.15阀门重量和给水栓使用时的操作负荷不应施加于管道上，故应设支承点，支承点应在阀门和给水栓的两侧。5>.3管道连接5>.3>.1第6款规定的插入时间，是保证承插口粘接质量的关键。如插入保持时间太短，即固化时间太短，将影响接头强度，也易影响管道的直度。表5>.3>.1的数据，系摘自日本某公司的设计和施工手册。??93??5>.4施工安全5>.4>.1-5>.4>.8PVC-C粘接剂和清洁剂属于易燃物品，故应加强防火;又因是有机溶剂，皮肤、角膜接触易受侵蚀，故应采取防护措施。94??\n6检测与验收由于氯化聚氯乙烯的许多特性与硬聚氯乙烯管相似，故本节系沿用建筑用硬聚氯乙烯给水管道关于检测与验收的规定。??95??