Superseded90% confidenceCautionTime unknown
不要购买无CCC认证或无过热保护/温控器的杂牌加热管，加热管属于高危电器部件，无认证产品存在漏电和干烧起火风险
1
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90%
Confidence
Long-term
Relevance
-
First Seen
This knowledge claim has been superseded by newer content
不要购买无CCC认证的断路器，低价杂牌产品常虚标分断能力和额定电流、内部材料以次充好，短路时无法可靠分断存在重大火灾隐患Sources
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