Elevator noise _ Gunton metal products (certified) _ Bishan Elevator

Special elevator safety device (3) electrical fault protection. According to the provisions of the AC power supply phase sequence protection should elevator lift the host, motors and lighting circuits should have short circuit protection and power supply system is directly connected to the elevator, the motor is directly connected to the power supply should have overload protection. (4) electrical safety devices. Electrical Safety features include: Direct drive off the mains contactor or safety relay contacts; do not cut off the contact directly or safety relay contacts and does not meet the security requirements of the contacts of electric shock. But when the elevator electrical equipment failure, if no voltage or low voltage; wire interruption; insulation damage; element short circuit or open circuit; relay and contactor does not release or does not suck and; contacts continue to open or not closed; off with the wrong equal electrical safety devices should be able to prevent a dangerous state elevator. From the elevator installation quality verification in FAQ 2.2 elevator brake operating frequency does not meet the requirements specification by 120 times / h, not less than 8h elevator every day, each starting and braking 1000 times, according to this starting and braking frequency, this test should normally be completed within 3 days. However, installation companies, we found that the self-test data, this test lasted four days, five days, or even longer, but did not increase the number of runs. This greatly reduces the severity test, but also reach the purpose of the assessment lift capability of continuous operation. 2.3 does not do continuous trouble-free operation. Elevator noise _ Gunton metal products (certified) _ Bishan lift provided by the Chongqing Municipal Gordon Metal Products Co., Chongqing Gordon Metal Products Co., Ltd. (www.cqgaodun.com) is Chongqing Municipality, lifts and accessories leader over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Gordon Metal Products in leadership with the staff warmly welcome all inquiries negotiations to create Gunton metal products a better future.