明确统一的标志是保证用电安全的一项重要措施一统计表明,很多电气事故就是由于标志不统一造成的。例如由于导线颜色不统一,误将相线接设备的机壳,而导致机壳带电,酿成触电伤亡事故。标志分为颜色标志和图形标志。颜色标志常用来区分各种不同性质、不同用途的导线,或用来表示某处的安全程度。图形标志一般用来告诫人 A clear and unified sign is an important measure to ensure the safety of electricity. The statistics show that many electrical accidents are caused by the inconsistent signs. For example, due to the inconsistent color of the wire, the phase wire is accidentally connected to the casing of the device, causing the casing to become electrified, resulting in an electric shock and death accident. The signs are divided into color signs and graphic signs. Color markers are often used to distinguish different kinds of wires with different properties and purposes, or to indicate the degree of safety of a place. Graphic signs are generally used to warn people