Wuhu Hengxin Cable Co., Ltd
Contact：Mr Dai
Phone: 13955309088
Address: 13955309088@163.com
Address: Jiuhua North Road Electrical Components Industrial Park, Wuhu City, Anhui Province
How is the insulation effect of electric heat tracing determined
电伴热带常用于工业管道的防冻和保温。电伴热带通过缠绕或铺贴紧密地附着在管道设备上，并用铝带粘贴，耐热胶带用于沿径向固定电伴热带。电伴热安装完成后，应进行绝缘电阻测试。如果没有问题，当冬天来临时，电伴热系统可以通电。电伴热带起防冻和绝缘的作用，使管道、储罐、设备等在冬天可以正常工作。电伴热带由导电聚合物、两根平行金属线和绝缘护套组成。其特点是导电聚合物具有较高的正温度系数，并且彼此并联。它们可以随着加热系统的温度变化自动调整输出功率，自动限制加热温度，可以在一定范围内任意缩短或延长，并允许多次重叠，而无需担心高温热点和燃烧。
有人可能认为电伴热带的加热效果主要取决于加热带产品本身，而保温材料的影响不是很大。这种认识是错误的。事实上，隔热材料对伴热效果有非常直接的影响，就像衣服对保温有影响一样。不同材料的保温制品导热系数不同，其保温效果也有很大差异。因此，加热带系统安装后，保温材料的安装是必不可少的一步。因此，不仅需要考虑介质保持温度的要求，还需要考虑耐高温性的要求。
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