First read and memorize the schematic diagram, and then look at the wiring diagram is much easier. Understand the wiring diagram first have to understand the drawing rules and content of the wiring diagram.
Wiring diagrams generally express the relative position of electrical equipment and components, text symbols, terminal number, wire number, wire type, wire cross-section.
All the components are drawn on the drawing according to their actual location, and the same electrical components according to its actual structure, using the same graphic symbols with the schematic diagram drawn together, and with the point of drawing on the line frame, the text symbols as well as the number of terminals should be the same as the schematic diagram in the labeling, so as to check against the wiring.
The wiring diagram of the wire has a single wire, wire group (or wire tie), cable, etc., can be continuous line and interrupted line to indicate. Where the wires to the same can be combined with a harness to indicate that the connection point to reach the terminal board or electrical components and then painted separately. In the use of wire harnesses that conductor groups, cables, etc. can be used to thicken the line that in the case of not causing misunderstanding can also be used partially thickened. In addition, the type, number and specification of the conductor and casing and threading pipe are clearly labeled.
Principle of reading the map: first after the main secondary, read the main circuit part of the power supply from the introduction of the end to start, through the switch, line, to the power equipment; secondary circuit reading from the power supply, in accordance with the order of the components in order to analyze. Wiring diagram is drawn out of the schematic diagram, therefore, when looking at the wiring diagram should be combined with the schematic diagram against the start to look at the circuit number, terminal number and external connections to analyze the map also has some help.