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Wuhu Heng Xin Cable Co., Ltd.
Susie: 13695533065
Email: info@ahhengxincable.com
Sales Hotline: 0553-3837700, 3832212
Address: Anhui Province Wuhu Nine North
China Road electrical Components Industrial
Parkl
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电伴热带安装注意事项
Edit:Wuhu Heng Xin Cable Co., Ltd.UpDate:2023-07-02
1.安装前:防锈防腐涂层要干透、管道上无毛刺和利角,电伴热带表面无破损,电热带绝缘电阻应≥20MΩ(1 000VDC )。不要强力拉扯电伴热带,避免脚踏或重物放置电热带上;电热带与所有配件的型号应与设计要求一致。2.安装中:每隔约50cm将电热带用玻璃纤维压敏胶带或铝胶带固定在干管道上,平时尽可能将电热带附在管道下45°侧方;在线路的一供电点和尾端各预留lm长的电热带;在所有散热体如支架、阀门、法兰等处应预留一定长度电热带,以便随时拆除、维修、更换等:在使用二通或三通配件处电热带各端应预留40cm长,多根电热带应注意合理选择电源点,要便于维修。保温层材料必须干燥,应加防水外罩,在保温层外加警示标签注明“内有电热带”。3.安装后的检查及测试:
检查电伴热带表面是否损坏,用摇表2 500VDC测试每一独立线路一端,绝缘电阻应在20Mn以上。应保证电源部分过载保护、漏电保护和防爆安全装置良好。
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