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GB 7588-2003 第8.3.1条 Safety rules for the construction and installation of elevators

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GB 7588-2003 第8.3.1条

| | The braking system shall have two independent electrical braking devices (e.g., electromagnetic brakes), each capable of independently stopping the car with rated load at rated speed (e.g., 1.0 m/s), and the braking deceleration shall not exceed 1.0 m/s² (normal condition). |

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