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民用电伴热保温安装说明

信息来源:皖缆集团股份有限公司 浏览次数:2411 发布时间:2016-06-10

1.伴热电缆安装前,应将管道表面的水泥块、焊渣等杂物清理干净。

2.伴热电缆的长度、规格和安装方式等应根据工程设计确定,安装人员不得随意调换或更改。
3.伴热电缆的安装方式(见下表)
民用伴热电缆安装方式对应表
4.温度传感器的感温头不能与伴热电缆接触,间距距离应尽可能大;除自限温伴热带外,其它伴热电缆的安装不允许重叠和交叉。
在封头处的安装长度应符合工程设计要求。
对于螺旋缠绕方式,封端处的缠绕间距应根据工程设计长度缩短螺距,多更伴热电缆直线平行安装时,应间隔均匀。
伴热电缆直线平行安装时,应将其安装在管道的正下方45度角或侧下方(见下图)。
民用管道的伴热电缆安装位置
5.伴热电缆采用扎带固定,扎带可选用塑料扎带、扎线或玻璃纤维编制的压敏胶带等材料,其使用温度(耐热)不应低于伴热电缆塑料外皮使用的温度,具有金属或金属编织外护套的伴热电缆还可采用金属裸扎线固定。伴热电缆的安装,应边敷设,边固定。
6.金属管道采用电伴热保温时,应注意防电击、雷击,可采用等电位联结措施。
由设计者根据规范要求,经验算后确定是否设漏电保护。
防爆场所的伴热电缆及设备应具有国家相应防爆产品的认证书。
成圈或盘装的伴热电缆不可接入工作电压通电,伴热电缆的测试、运输、储存和施工安装尚应满足制造商的要求。
管道防冻自限温伴热带主要工程数据表:
 
管道防冻自限温伴热带主要工程数据表
生活热水伴热电缆主要工程数据表:
生活热水伴热电缆主要工程数据表
 
民用电伴热的(主成)构造图
 

扩展阅读:
电伴热选型与计算
电伴热系统工作原理
电伴热设计说明及技术指导(图册)
管道电伴热带安装(图)

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