A plant diagram is undoubtedly one of the most important documents in a manufacturing plant. We’ll start our schematic reading course with the simplest item we can find in an electrical closet – the cable connector (ZUG). Connectors are a very important element in almost every electrical installation and control and measurement equipment. They provide installation safety and connection security.
I remember in my senior year of college when I started looking for a job within my field of study. I found an ad for a company that remanufactures waste reduction machines, among other things. They were looking for a man – a “handyman”, self-taught, automatic, electrician, call him what you will, but in general, to be able to fix a simple machine. So I call them. I find out what the job entails, I show off to my future boss what a fantastic man I am, and at the end of the conversation I hear more or less that:
The article is a summary of the most commonly used safety devices and their symbols in electrical and automation installations. This will help you learn the markings on the wiring diagrams.