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| QB/T 4702-2024 Electric heating element of rare earth integrated with thick film circuit (English Version) |
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Detail of QB/T 4702-2024
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Introduction of QB/T 4702-2024
本文件规定了稀土厚膜电路电热元件的正常使用条件、外观、基本性能、电气性能、过载能力、非正常工作、使用寿命、功率衰减率、标志耐磨性、卫生、环境适应性的要求，描述了相应的试验条件、试验方法，规定了检验规则、标志、包装、运输和贮存的内容，同时给出了便于技术规定的分类与型号命名。
本文件适用于额定电压不超过250V的单相器具或额定电压不超过400V的其他器具中使用的电热元件的设计、生产、检验和销售。
Contents of QB/T 4702-2024