数据中心设计规范
Code for Design of Data Centers
GB 50174-2017
主编部门:中华人民共和国工业和信息化部
批准部门: 中华人民共和国住房和城乡建设部
施行日期:2018年 1月 1日
中国计划出版社
2017 北 京
中华人民共和国住房和城乡建设部公告
第 1541 号
住房城乡建设部关于发布国家标准
《数据中心设计规范》的公告
现批准《数据中心设计规范》为国家标准,编号为
GB50174-2017,自 2018 年 1 月 1 日起实施。其中,第 8.4.4、
13.2.1、13.2.4、13.3.1、13.4.1 条为强制性条文,必须严格
执行。原《电子信息系统机房设计规范》GB50174-2008 同
时废止。
本规范由我部标准定额研究所组织中国计划出版社出版
发行。
中华人民共和国住房城乡建设部
2017 年 5 月 4 日
前 言
本规范是根据住建部《关于发印2011年工程建设标准规范制订、修订计划的
通知》(建标[2011]17号)的要求,由中国电子工程设计院会同有关单位对原国
家标准《电子信息系统机房设计规范》GB50174-2008进行修订的基础上编制完成
的。
本规范共分13章和1个附录,主要技术内容有:总则、术语、分级与性能要求、
选址及设备布置、环境要求、建筑与结构、空气调节、电气、电磁屏蔽、网络与
布线系统、智能化系统、给水排水、消防与安全。
本规范修订的主要内容有:1、根据目前各行业对数据中心的要求和规模差别
较大的情况,增加了A级数据中心的定义范围,以满足不同行业的设计要求。2、
增加了对网络系统和灾备数据中心的设计要求。3、将第十一章“监控与安全防范”
更名为“智能化系统”。
本规范中以黑体字标志的条文为强制性条文,必须严格执行。
本规范由住房和城乡建设部负责管理和对强制性条文的解释,由工业和信息
化部电子工程建设标准定额站负责日常管理,由中国电子工程设计院负责具体技
术内容的解释。本规范在执行过程中,请各单位结合工程实践,认真总结经验,
如发现需要修改或补充之处,请将意见和建议寄至中国电子工程设计院《数据中
心设计规范》管理组(地址:北京市海淀区西四环北路160号玲珑天地,邮政编码:
100142,传真:010-88193388-9989),以供今后修订时参考。
本规范的主编单位、参编单位、主要起草人和主要审查人:
主编单位:中国电子工程设计院
参编单位:世源科技工程有限公司
中国航空规划建设发展有限公司
上海建筑设计研究院有限公司
中国建筑设计研究院
总装备部工程设计研究总院
中国机房设施工程有限公司
太极计算机股份有限公司
北京捷通机房设备工程有限公司
信息产业电子第十一设计研究院科技工程股份有限公司
北京科计通电子工程有限公司
艾默生网络能源有限公司
西门子(中国)有限公司
上海国际商业机器工程技术有限公司
美国西蒙公司
浙江一舟电子科技股份有限公司
湖北安华智能股份公司
主要起草人:钟景华 晁阳 丁杰 陈众励 丁麒钢 陈宇通
曹播 刘志 王鹏 晁怀颇 黄群骥 邓馨
单晨 陈亮 黄锴 肖必龙 宋孝春 马名东
崔炎 张旭 刘喜明 杨剑波 夏双兵 武顺伟
黎江 杜宝强 王振军 汪怡平 许晓峰 张迎军
主要审查人:孙兰 王海峰 邓重秋 朱立彤 寇九贵 刘凯
路世昌 屈焰 方良周 曲海峰 杨晓平 万英北
张敬 陈川 安真
目 次
1 总则 ·························································································· (1)
2 术语 ·························································································· (2)
3 分级与性能要求 ······································································ (7)
3.1 分级 ················································································· (7)
3.2 性能要求 ········································································· (7)
4 选址及设备布置 ······································································ (9)
4.1 选址 ················································································· (9)
4.2 组成 ················································································· (9)
4.3 设备布置 ········································································· (10)
5 环境要求···················································································· (11)
5.1 温度、露点温度及空气粒子浓度 ································· (11)
5.2 噪声、电磁干扰、振动及静电······································· (11)
6 建筑与结构 ·············································································· (12)
6.1 一般规定 ········································································· (12)
6.2 人流、物流及出入口 ······················································ (12)
6.3 围护结构热工设计和节能措施········································ (13)
6.4 室内装修 ·········································································· (13)
7 空气调节····················································································· (15)
7.1 一般规定 ·········································································· (15)
7.2 负荷计算 ·········································································· (15)
7.3 气流组织 ·········································································· (15)
7.4 系统设计 ·········································································· (16)
7.5 设备选择 ·········································································· (17)
8 电气 ···························································································· (19)
8.1 供配电················································································· (19)
8.2 照明 ··················································································· (21)
8.3 静电防护 ··········································································· (21)
8.4 防雷与接地 ······································································· (22)
9 电磁屏蔽······················································································ (24)
9.1 一般规定 ··········································································· (24)
9.2 结构形式 ··········································································· (24)
9.3 屏蔽件················································································· (24)
10网络与布线系统 ········································································· (26)
10.1 网络系统 ·········································································· (26)
10.2 布线系统 ·········································································· (26)
11智能化系统··················································································· (28)
11.1 一般规定 ·········································································· (28)
11.2 环境和设备监控系统 ······················································ (28)
11.3安全防范系统 ···································································· (29)
11.4总控中心 ············································································ (29)
12 给水排水 ··················································································· (30)
12.1 一般规定 ·········································································· (30)
12.2 管道敷设 ·········································································· (30)
13 消防与安全 ··············································································· (31)
13.1 一般规定 ·········································································· (31)
13.2 防火与疏散········································································ (31)
13.3 消防设施 ········································································ (33)
13.4 安全措施 ········································································ (33)
附录A 各级数据中心技术要求························································ (34)
本规范用词说明 ············································································ (41)
引用标准名录 ·················································································· (42)
附:条文说明 ·················································································· (43)
Contents
1 General provisions ······························································· (1)
2 Terms ····························································································· (2)
3 Rating classification and required features ······ (7)
3.1 Rating classification ············································· (7)
3.2 Required features ······················································ (7)
4 Site selection and equipment layout ··························· (9)
4.1 Site selection ······························································ (9)
4.2 Composition ····································································· (9)
4.3 Equipment layout ························································· (10)
5 Environmental requirement ················································· (11)
5.1 Temperature,dew point temperature and airborne
particle concentration ····································································· (11)
5.2 Noise,electromagnetic interference,vibration and
static electricity ·············································································· (11)
6 Building and structure ························································ (12)
6.1 General ············································································· (12)
6.2 People flow and goods flow, entrances and
exits ············································································································ (12)
6.3 Retaining structure thermal design and energy saving
measure ········································································································ (13)
6.4 Interior design ····························································· (13)
7 Air conditioning ········································································ (15)
7.1 General ··············································································· (15)
7.2 Thermal load calculation ···································· (15)
7.3 Airflow management ·················································· (15)
7.4 System design ····························································· (16)
7.5 Equipment selection ················································ (17)
8 Electrical Systems ······························································· (19)
8.1 Power Supply and distribution ··························· (19)
8.2 Lighting ··········································································· (21)
8.3 Electrostatic discharge protection ················ (21)
8.4 Lightning protection and grounding ················ (22)
9 Electromagnetic Shielding ················································· (24)
9.1 General ············································································· (24)
9.2 Shielding structure ·················································· (24)
9.3 Shielding objects ······················································ (24)
10 Network and cabling system ············································· (26)
10.1 Network system ···························································· (26)
10.2 Cabling system ···························································· (26)
11 Intelligent system ······························································· (28)
11.1 General ············································································ (28)
11.2 Environment and equipment monitoring ········· (28)
11.3 Security system ·························································· (29)
11.4 Enterprise command center ···································· (29)
12 Water supply and drainage ······················································ (30)
12.1 General ················································································· (30)
12.2 Piping layout ····································································· (30)
13 Fire protection and safety ······················································ (31)
13.1 General ············································································· (31)
13.2 Fire prevention and evacuation ························· (31)
13.3 Fire protection facilities ·································· (33)
13.4 Safety measure ····························································· (33)
Appendix A: Technical Requirements for Data Center Ratings
Definition of key words ···························································· (34)
Explanation of wording in this code ·········································· (41)
List of quoted standards ································································· (42)
Addition: Explanation of provisions ········································ (43)
1 总 则
1.0.1 为规范数据中心的设计,确保电子信息系统安全、稳定、可靠地运行,做
到技术先进、经济合理、安全适用、节能环保,制定本规范。
1.0.2 本规范适用于新建、改建和扩建的数据中心的设计。
1.0.3 数据中心的设计应遵循近期建设规模与远期发展规划协调一致的原则。
1.0.4 数据中心的设计除应符合本规范外,尚应符合国家现行有关标准的规定。
1
2 术语
2.0.1 数据中心 data center
为集中放置的电子信息设备提供运行环境的建筑场所,可以是一栋或几栋建筑物,
也可以是一栋建筑物的一部分,包括主机房、辅助区、支持区和行政管理区等。
2.0.2 灾备数据中心 business recovery data center
用于灾难发生时,接替生产系统运行,进行数据处理和支持关键业务功能继续运
作的场所,包括限制区、普通区和专用区。
2.0.3 主机房 computer room
主要用于数据处理设备安装和运行的建筑空间,包括服务器机房、网络机房、存
储机房等功能区域。
2.0.4 辅助区 auxiliary area
用于电子信息设备和软件的安装、调试、维护、运行监控和管理的场所,包括进
线间、测试机房、总控中心、消防和安防控制室、拆包区、备件库、打印室、维修室
等区域。
2.0.5 支持区 support area
为主机房、辅助区提供动力支持和安全保障的区域,包括变配电室、柴油发电机
房、电池室、空调机房、动力站房、不间断电源系统用房、消防设施用房等。
2.0.6 行政管理区 administrative area
用于日常行政管理及客户对托管设备进行管理的场所,包括办公室、门厅、值班
室、盥洗室、更衣间和用户工作室等。
2.0.7 限制区 restricted area
根据安全需要,限制不同类别人员进入的场所,包括主机房、辅助区和支持区等。
2.0.8 普通区 regular area
用于灾难恢复和日常训练、办公的场所。
2.0.9 基础设施 infrastructure
数据中心内,为电子信息设备提供运行保障的设施。
2.0.10 电子信息设备 electronic information equipment
2
对电子信息进行采集、加工、运算、存储、传输、检索等处理的设备,包括服务器、
交换机、存储设备等。
2.0.11 冗余 redundancy
重复配置系统的一些或全部部件,当系统发生故障时,冗余配置的部件介入并承担故
障部件的工作, 由此延长系统的平均故障间隔时间。
2.0.12 N——基本需求 N——base requirement
系统满足基本需求,没有冗余。
2.0.13 N+X冗余 N+X redundancy
系统满足基本需求外,增加了X个组件、X个单元、X个模块或X个路径。任何X个组件、
单元、模块或路径的故障或维护不会导致系统运行中断。(X=1~N)
2.0.14 容错 fault tolerant
具有两套或两套以上的系统,在同一时刻,至少有一套系统在正常工作。按容错系统
配置的基础设施,在经受住一次严重的突发设备故障或人为操作失误后,仍能满足电
子信息设备正常运行的基本需求。
2.0.15 电磁干扰(EMI) electromagnetic interference
电磁骚扰引起的装置、设备或系统性能的下降。
2.0.16 电磁屏蔽 electromagnetic shielding
用导电材料减少交变电磁场向指定区域的穿透。
2.0.17 电磁屏蔽室 electromagnetic shielding enclosure
专门用于衰减、隔离来自内部或外部电场、磁场能量的建筑空间体。
2.0.18 截止波导通风窗 cut-off waveguide vent
截止波导与通风口结合为一体的装置,该装置既允许空气流通,又能够衰减一定频率
范围内的电磁波。
2.0.19 可拆卸式电磁屏蔽室 modular electromagnetic shielding enclosure
按照设计要求,由预先加工成型的屏蔽壳体模块板、结构件、屏蔽部件等,经过施工
现场装配,组建成具有可拆卸结构的电磁屏蔽室。
2.0.20 焊接式电磁屏蔽室 welded electromagnetic shielding enclosure
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主体结构采用现场焊接方式建造的具有固定结构的电磁屏蔽室。
2.0.21 配电列头柜(RPP) remote power panel
为成行排列或按功能区划分的机柜提供配电管理的设备。
2.0.22 网络配线柜 horizontal distribution area cabinet
为成行排列或按功能区划分的机柜提供网络服务的水平配线区设备。
2.0.23 智能布线管理系统 intelligent cabling management system
一套完整的软硬件整合系统,通过对电子配线设备端口连接属性的实时监测,实现对
布线系统和网络设备连接的智能化管理,跟踪、记录和报告。
2.0.24 静态 static state
主机房的空调系统处于正常运行状态,室内温度和露点温度达到电子信息设备的运行
要求,但电子信息设备未运行。
2.0.25 动态 dynamic state
主机房的空调系统和电子信息设备处于正常运行状态,室内有相关人员在场的情况。
2.0.26 停机条件 stop condition
主机房和辅助区的空调系统处于正常运行状态,室内温度和相对湿度满足电子信息设
备的停机要求,电子信息设备处于停机状态。
2.0.27 静电泄放 electrostatic leakage
带电体上的静电电荷通过带电体内部或其表面等途径,部分或全部消失的现象。
2.0.28 体积电阻 volume resistance
在材料相对的两个表面上放置的两个电极间所加直流电压与流过两个电极间的稳态
电流(不包括沿材料表面的电流)之商。
2.0.29 保护性接地 protective earthing
以保护人身和设备安全为目的的接地。
2.0.30 功能性接地 functional earthing
用于保证设备(系统)正常运行,正确地实现设备(系统)功能的接地。
2.0.31 接地线 earthing conductor
从接地端子或接地汇集排至接地极的连接导体。
2.0.32 等电位联结带 bonding bar
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将等电位联结网格、设备的金属外壳、金属管道、金属线槽、建筑物金属结构等连接
其上形成等电位联结的金属带。
2.0.33 等电位联结导体 bonding conductor
将分开的诸导电性物体连接到接地汇集排、等电位联结带或等电位联结网格的导体。
2.0.34 电能利用效率(PUE) power usage effectiveness
表征数据中心电能利用效率的参数,其数值为数据中心内所有用电设备消耗的总电能
与所有电子信息设备消耗的总电能之比。
2.0.35 水利用效率(WUE) water usage effectiveness
表征数据中心水利用效率的参数,其数值为数据中心内所有用水设备消耗的总水量与
所有电子信息设备消耗的总电能之比。
2.0.36 自动转换开关电器(ATSE) automatic transfer switching equipment
由一个或几个转换开关电器和其他必需的电器组成,用于监测电源电路,并将一个或
几个负载电路从一个电源自动转换至另一个电源的电器。
2.0.37 计算流体动力学(CFD) computational fluid dynamics
通过计算机模拟求解流体力学方程,对流体流动与传热等物理现象进行分析,得到温
度场、压力场、速度场等计算方法。
2.0.38 双重电源 duplicate supply
一个负荷的电源是由两个电路提供的,这两个电路就安全供电而言被认为是相互独立
的。
2.0.39 总控中心(ECC) enterprise command center
为数据中心各系统提供集中监控、指挥调度、技术支持和应急演练的平台,也可称为
监控中心。
2.0.40 不间断电源系统(UPS)uninterruptible power system
由变流器、开关和储能装置组合构成的系统,在输入电源正常和故障时,输出交流或
直流电源,在一定时间内,维持对负载供电的连续性。
2.0.41 总体拥有成本(TCO) Total cost of ownership
数据中心全生命周期内,建设费用和运行费用的总和。
2.0.42 云计算 cloud computing
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云计算是一种运算资源服务模式,能够让用户通过网络方便地按照需要使用资源池提
供的可配置运算资源,该资源可以快速部署与发布。
2.0.43 数据中心基础设施管理系统(DCIM) Data Center Infrastructure Management
数据中心基础设施管理系统通过持续收集数据中心的资产、资源信息,以及各种设备
的运行状态,分析、整合和提炼有用数据,帮助数据中心运行维护人员管理数据中心,
并优化数据中心的性能。
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3 分级与性能要求
3.1 分级
3.1.1 数据中心应划分为A、B、C三级。设计时应根据数据中心的使用性质、数据丢
失或网络中断在经济或社会上造成的损失或影响程度确定所属级别。
3.1.2 符合下列情况之一的数据中心应为A级:
1 电子信息系统运行中断将造成重大的经济损失;
2 电子信息系统运行中断将造成公共场所秩序严重混乱。
3.1.3 符合下列情况之一的数据中心应为B级。
1 电子信息系统运行中断将造成较大的经济损失;
2 电子信息系统运行中断将造成公共场所秩序混乱。
3.1.4 不属于A级或B级的数据中心应为C级。
3.1.5 在同城或异地建立的灾备数据中心,设计时宜与主用数据中心等级相同。
3.1.6 数据中心基础设施各组成部分宜按照相同等级的技术要求进行设计,也可按照
不同等级的技术要求进行设计。当各组成部分按照不同等级进行设计时,数据中心的
等级按照其中最低等级部分确定。
3.2 性能要求
3.2.1 A级数据中心的基础设施宜按容错系统配置,在电子信息系统运行期间,基础
设施应在一次意外事故后或单系统设备维护或检修时仍能保证电子信息系统正常运
行。
3.2.2 A级数据中心同时满足下列要求时,电子信息设备的供电可采用不间断电源系
统和市电电源系统相结合的供电方式。
1 设备或线路维护时,应保证电子信息设备正常运行;
2 市电直接供电的电源质量应满足电子信息设备正常运行的要求;
3 市电接入处的功率因数应符合当地供电部门的要求;
4 柴油发电机系统应能够承受容性负载的影响;
5 向公用电网注入的谐波电流分量(方均根值)不应超过现行国家标准《电能
质量 公用电网谐波》GB/T14549规定的谐波电流允许值。
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3.2.3 当两个或两个以上地处不同区域的数据中心同时建设,互为备份,且数据实时
传输、业务满足连续性要求时,数据中心的基础设施可按容错系统配置,也可按冗余
系统配置。
3.2.4 B级数据中心的基础设施应按冗余要求配置,在电子信息系统运行期间,基础
设施在冗余能力范围内,不应因设备故障而导致电子信息系统运行中断。
3.2.5 C级数据中心的基础设施应按基本需求配置,在基础设施正常运行情况下,应
保证电子信息系统运行不中断。
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4 选址及设备布置
4.1 选址
4.1.1 数据中心选址应符合下列要求:
1 电力供给应充足可靠,通信应快速畅通,交通应便捷;
2 采用水蒸发冷却方式制冷的数据中心,水源应充足。
3 自然环境应清洁,环境温度应有利于节约能源;
4 应远离产生粉尘、油烟、有害气体以及生产或贮存具有腐蚀性、易燃、易爆
物品的场所;
5 应远离水灾、地震等自然灾害隐患区域;
6 应远离强振源和强噪声源;
7 应避开强电磁场干扰;
8 A级数据中心不宜建在公共停车库的正上方;
9 大中型数据中心不宜建在住宅小区和商业区内。
4.1.2 设置在建筑物内局部区域的数据中心,在确定主机房的位置时,应对安全、设
备运输、管线敷设、雷电感应、结构荷载、水患及空调系统室外设备的安装位置等问
题进行综合分析和经济比较。
4.2 组成
4.2.1 数据中心的组成应根据系统运行特点及设备具体要求确定,宜由主机房、辅助
区、支持区、行政管理区等功能区组成。
4.2.2 主机房的使用面积应根据电子信息设备的数量、外形尺寸和布置方式确定,并
应预留今后业务发展需要的使用面积。主机房的使用面积可按下式确定:
A=SN (4.2.2)
式中 A——主机房的使用面积(㎡);
S——单台机柜(架)、大型电子信息设备和列头柜等设备占用面积,可取2.0~
4.0(㎡/台);
N——主机房内所有机柜(架)、大型电子信息设备和列头柜等设备的总台数。
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4.2.3 辅助区和支持区的面积之和可为主机房面积的1.5倍~2.5倍。
4.2.4 用户工作室的使用面积可按4㎡/人~5㎡/人计算;硬件及软件人员办公室等有
人长期工作的房间,使用面积可按5㎡/人~7㎡/人计算。
4.2.5 在灾难发生时,仍需保证电子信息业务连续性的单位,应建立灾备数据中心。
灾备数据中心的组成应根据安全需求、使用功能和人员类别划分为限制区、普通区和
专用区。
4.3 设备布置
4.3.1 数据中心内的各类设备应根据工艺设计进行布置,应满足系统运行、运行管理、
人员操作和安全、设备和物料运输、设备散热、安装和维护的要求。
4.3.2容错系统中相互备用的设备应布置在不同的物理隔间内,相互备用的管线宜沿
不同路径敷设。
4.3.3 当机柜(架)内的设备为前进风/后出风冷却方式,且机柜自身结构未采用封闭
冷风通道或封闭热风通道方式时,机柜(架)的布置宜采用面对面、背对背方式。
4.3.4 主机房内通道与设备间的距离应符合下列规定:
1 用于搬运设备的通道净宽不应小于1.5m;
2 面对面布置的机柜(架)正面之间的距离不宜小于1.2m;
3 背对背布置的机柜(架)背面之间的距离不宜小于0.8m;
4 当需要在机柜(架)侧面和后面维修测试时,机柜(架)与机柜(架)、机
柜(架)与墙之间的距离不宜小于1.0m;
5 成行排列的机柜(架),其长度超过6m时,两端应设有通道;当两个通道之
间的距离超过15m时,在两个通道之间还应增加通道。通道的宽度不宜小于1m,局部
可为0.8m。
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5 环境要求
5.1 温度、露点温度及空气粒子浓度
5.1.1 主机房和辅助区内的温度、露点温度和相对湿度应满足电子信息设备的使用要
求;当电子信息设备尚未确定时,应按照附录A的要求执行。
5.1.2 主机房的空气含尘浓度,在静态或动态条件下测试,每立方米空气中粒径大于
或等于0.5μ m的悬浮粒子数应少于17,600,000粒。
5.1.3数据中心装修后的室内空气质量除应符合本规范的规定外,尚应符合现行国家
标准《室内空气质量标准》GB/T18883的有关规定。
5.2 噪声、电磁干扰、振动及静电
5.2.1总控中心内,在长期固定工作位置测量的噪声值应小于60dB(A)。
5.2.2主机房和辅助区内的无线电骚扰环境场强在80MHz~1000MHz和1400MHz~
2000MHz频段范围内不应大于130 dB(μ v/m);工频磁场场强不应大于30A/m。
5.2.3 在电子信息设备停机条件下,主机房地板表面垂直及水平向的振动加速度不应
大于500mm/s2。
5.2.4 主机房和辅助区内绝缘体的静电电压绝对值不应大于1kV。
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6 建筑与结构
6.1 一般规定
6.1.1 建筑和结构设计应根据数据中心的等级,按本规范附录A的要求执行。
6.1.2 建筑平面和空间布局应具有灵活性,并应满足数据中心的工艺要求。
6.1.3 主机房净高应根据机柜高度、管线安装及通风要求确定。新建数据中心时,主
机房净高不宜小于3.0m。
6.1.4 变形缝不宜穿过主机房。
6.1.5 主机房和辅助区不应布置在用水区域的直接下方,不应与振动和电磁干扰源为
邻。
6.1.6 设有技术夹层和技术夹道的数据中心,建筑设计应满足各种设备和管线的安装
和维护要求。当管线需穿越楼层时,宜设置技术竖井。
6.1.7 新建A级数据中心的抗震设防类别不应低于乙类,B级和C级数据中心的抗震设
防类别不应低于丙类。
6.1.8 改建的数据中心应根据荷载要求,按照《建筑抗震鉴定标准》GB50023的规定
进行抗震鉴定。经抗震鉴定后需要进行抗震加固的建筑应根据现行国家标准《混凝土
加固结构规范》GB50367、《建筑抗震加固技术规程》JGJ 116和《混凝土结构后锚固
技术规程》JGJ 145的规定进行加固。当抗震设防类别为丙类的建筑改建为A级数据中
心时,在使用荷载满足要求的条件下,建筑可不做加固处理。
6.1.9 新建A级数据中心首层建筑完成面应高出当地洪水百年重现期水位线1.0m以上,
并应高出室外地坪最少0.6m。
6.2 人流、物流及出入口
6.2.1数据中心宜单独设置人员出入口和货物出入口。
6.2.2 有人操作区域和无人操作区域宜分开布置。
6.2.3 数据中心内通道的宽度及门的尺寸应满足设备和材料的运输要求,建筑入口至
主机房的通道净宽不应小于1.5m。
6.2.4 数据中心可设置门厅、休息室、值班室和更衣间。更衣间使用面积可按最大班
人数的1m2/人~3m2/人计算。
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6.3 围护结构热工设计和节能措施
6.3.1 数据中心的建筑气候分区和围护结构热工设计应符合现行国家标准《公共建筑
节能设计标准》GB50189 的规定。当主机房与外围护结构相邻时,对应部分外围护结
构的热工性能应根据全年动态能耗分析情况确定最优值。
6.3.2 数据中心围护结构的材料选型应满足保温、隔热、防火、防潮、少产尘等要求。
外墙、屋面热桥部位的内表面温度不应低于室内空气露点温度。
6.3.3 主机房不宜设置外窗。当主机房设有外窗时,外窗的气密性不应低于《建筑外
门窗气密、水密、抗风压性能分级及检测方法》GB/T7106规定的8级要求或采用双层
固定式玻璃窗,外窗应设置外部遮阳,遮阳系数按《公共建筑节能设计标准》GB 50189
确定。不间断电源系统的电池室设有外窗时,应避免阳光直射。
6.4 室内装修
6.4.1 室内装修设计选用材料的燃烧性能除应符合本规范的规定外,尚应符合现行国