Wiring Schematic Diagram Symbols. How to read the wiring diagrams wire colour codes a 9 wire colour codes wire colours are identified by the follow colour codes. A jumper wire can be used for this in a breadboard based circuit.
For example a switch will be a break in the line with a line at an angle to the wire much like a light switch you can flip on and off. Like transistors ground wires bulbs batteries resistors etc. Without these symbols we will never be understood and analyze what the circuit diagram is trying to explain to us.
Code wire colour code wire colour b black p pink br brown r red g green sb sky blue gr gray si silver l blue v violet lg light green w white o orange y yellow if a cable has two colours the first of the two colour code.
Symbol for control and wiring diagrams company document ns 503 cad name description symbol 07 02 02 make contact switch 07 13 02 contactor contact open in the deenergized position 07 13 05 circuit breaker 07 13 06 disconnector isolator off load 07 13 08 switch disconnector on load 07 21 08 fuse disconnector. Electrical wiring diagrams and symbols urdu page free. Numbers letters and maybe some nomenclatures. 1 master element 2 time delay starting or closing relay 3 checking or interlocking relay 4 master contactor 5 stopping device 6 starting circuit breaker 7 rate of change relay 8 control power disconnecting device 9 reversing device 10 unit.