The use of elevator wires involves many aspects, including electrical wiring, safety switch wiring, etc., to ensure the safety and stable operation of the elevator. The following is a detailed introduction to the use of elevator wires:
Electrical wiring:
Wiring of power lines: The power line is usually red and connected to the power switch of the elevator, and it is connected to another line (usually a black line) to ensure that the button can get power and work normally.
Wiring of control lines: The control line is generally a blue line, connected to the control circuit of the elevator. It is usually necessary to connect it to the control board of the elevator and ensure that its circuit is normal.
Wiring of ground wires: The ground wire represents the safety wire, which is used to connect the equipment casing to the earth to prevent leakage from causing electric shock accidents. Although the ground wire does not participate in the direct transmission of current, it is an important guarantee for safety.
Wiring of safety switches:
Before wiring the safety switch, it is necessary to ensure that the elevator system is completely powered off and hang a "No Closing" warning sign to prevent accidental power on and cause casualties.
The wiring steps include stripping the wire insulation, installing the terminal block, and connecting the safety switch. Pay special attention to distinguishing the connection of NO (normally open), NC (normally closed), and COM (common) wires to ensure that the connection is correct.
After the wiring is completed, use a multimeter to check the electrical performance of the wiring, including whether the insulation resistance, contact resistance and other parameters meet the requirements. At the same time, gently pull the wire to check whether the wiring is firm and reliable.