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What Are the Safety Standards and Regulations Governing the Use of Brake Motors in Industrial Settings?

Update:10 May 2024
Summary:Safety standards and regulations for using brake motors in industrial environments mainly include the following aspects:...

Safety standards and regulations for using brake motors in industrial environments mainly include the following aspects:
Temperature control: The temperature of the brake motor coil should be controlled within a safe range. When insulating materials are used, the temperature of the brake motor coil should not exceed 80K; if other grades of insulation materials are used, the coil temperature of the brake motor should not exceed 105K. The temperature of directly exposed parts should not exceed 6K. If the temperature exceeds the safe range, signs to prevent burns should be added to the outside of the motor.
Electrical safety: Brake motors should meet specific electrical safety requirements. First, the brake motor should remain released with continuous power during normal operation. Secondly, cutting off the brake current should be achieved by at least two independent electrical devices. These devices cannot control each other and must be controlled separately by two independent signals. In addition, if the main contact of one of the contactors is not opened when stopped, the elevator should be prevented from running again the next time the running direction changes. When an electric motor is likely to act as a generator to generate electricity, the electric motor shall be prevented from feeding power to the electrical device operating the brake. After disconnecting the brake release circuit, the elevator should be effectively braked without additional delay. The braking response time of the brake motor should not be greater than 0.5 seconds to prevent the elevator from pulling backwards or rolling away.
Mechanical properties: The mechanical properties of the brake motor should also meet certain standards. For example, the gap between the motor's rotor and stator should be normal to avoid failures caused by friction and wear. The axial runout and radial runout of the motor should meet the specifications to ensure smooth rotation of the motor. In addition, the motor's speed and torque should also be measured to check whether the motor is working properly.
Insulation performance: The insulation performance of a motor is critical to its safe operation. Therefore, high-voltage insulation testing should be performed on the motor to check whether its insulation performance is qualified.
Installation and wiring: The motor should be installed securely and the wiring should be correct to prevent failures caused by installation or wiring problems.
Overheating protection: The motor should be checked regularly for overheating to prevent failures caused by motor overheating.
Protective measures: Protective measures for the motor should be in place to ensure the safety of personnel and equipment during operation.
Please note that the above safety standards and regulations may vary depending on different countries and regions, different application scenarios, and different motor models. Therefore, in practical applications, relevant national standards, industry standards and motor instruction manuals should be referred to to ensure the safe use of brake motors.