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防爆电伴热带产品是否有隐患该如何辨别

点击次数:6405次    时间:2014-05-05    分享:

    目前市场上防爆电伴热带产品质量参差不齐,很多电伴热带厂家为减少生产成本从原材料下手采用价格低廉的非电伴热带产品专用的原材料更在生产工艺中擅自减少工艺环节,使得生产的产品有着极大的安全隐患,尤其是太阳能热水器电伴热带为甚,这种劣质太阳能电伴热带产品如果安装于太阳能热水器上,在零下20摄氏度的时候 是容易引发火灾,给使用者带来损失。

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    同等应用条件比较启动(瞬间)电流和稳态电流的比值(Is/Ie),比值越小的产品越好,如果>5则差,一般比值≤5,如果≤3即优。单纯讲起动电流的大小是无法判定产品好坏的,因产品的起动电流与工作电压高低、标称功率的大小、环境温度的高低有关,市场上个别厂家宣传“起动电流Is为0.5~0.6A/m·10℃就是好的说法是欠妥的。如果用于防冻电热带,标称功率≤10W/m·10℃,则稳态值Ie=0.045,起动电流如果是Is=0.5A,则是稳态电流Ie的10倍,这样产品就太差了,是 容易起火的伴热带产品。无锡艾克森热控生产的防爆电伴热带产品,尤其是太阳能专用电伴热带已做到了无启动电流,这一核心技术已填补国内电伴热带生产技术的一块空白。真正做到无启动电流,不起火。

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