Clear and unified signage is an important measure to ensure the safety of electricity. However, due to the large number of wires and the inconsistency of colors, it is easy to cause electrical accidents during operation. Therefore, it is necessary to standardize operations to ensure the personal safety of workers. The logo is divided into a color logo and a graphic logo. Color markers are often used to distinguish between wires of different natures and uses, or to indicate a certain degree of safety. The standards adopted by China's safety color code are basically the same as the International Standard Draft (ISD). The commonly used security colors are as follows:
1, red: used to mark prohibition, stop and fire, such as signal lights, signal flags, emergency stop button on the machine, etc. are all red to indicate "forbidden" information.
2, yellow: used to mark the danger. Such as "beware of electric shock", "attention to safety" and other information.
3, blue: used to mark enforcement, such as "must bring a helmet".
4, green: used to mark safety and nothing. Such as "working here", "grounded" and so on.
5. Black: The geometry used to mark images, text matches, and warning signs. According to the regulations, we need to use different colors to distinguish the characteristics of the equipment, in order to facilitate identification and prevent misoperation, to ensure the safety of the operation and maintenance personnel. For example, the electric busbar, the A phase is yellow, the B phase is green, the C phase is red, and the ground wire of the clear coating is painted black. In the secondary system, the AC voltage loop is yellow, the AC current loop is green, and the signal and warning loops are white.
Graphic signs are generally used to warn people not to approach dangerous places, so this cannot be ignored. In order to ensure safe use of electricity, color signs and graphic signs must be used strictly in accordance with relevant standards.