Standard No.:	QB/T 4702-2024
English Name:	Electric heating element of rare earth integrated with thick film circuit
Chinese Name:	稀土厚膜电路电热元件
Professional Classification:	QB    Professional Standard - Light Industry
Issued by:	MIIT
Issued on:	2023-12-20
Implemented on:	2024-10-1
Status:	valid
Superseding:	QB/T 4702-2014 Electric Heating Element of Rare Earth Integrated with Thick Film Circuit
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	255.00
Delivery:	via email in 1~3 business day

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。