汇集整理维修、安全用电36条常识基础知识

2026-02-24 网络整理佚名1220

Key Point:底盒86型：86型底盒是最常用开关、插座底盒，之所以称为86盒是长度与宽度均为8.6厘米。其深度结合明装、暗装方式有5厘米、6厘米、7厘米三种常见类型；

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