| 防爆电动葫芦三种特殊情况的防护要点 |
| 添加时间：2019/10/28 13:27:26 浏览次数： |
| 一、在粉尘环境中，对防爆电动葫芦有特殊的防护要求，防护要点如下： I. in dust environment, there are special protection requirements for explosion-proof electric hoist, and the protection points are as follows: (1)起重机上的电动机和主要电器的防护等级应相应提高，通常情况下葫芦式起重机用电动机及电器的防护等为IP44，根据粉尘程度的大小，应相应增强其密封性能，即防护(主要是防尘能力)等级成相应提高为IP54或lP64； (1) the protection level of the motor and main electrical appliances on the crane shall be increased accordingly. Generally, the protection level of the motor and electrical appliances for the hoist crane is IP44. According to the dust level, the sealing performance shall be enhanced accordingly, that is, the protection level (mainly dust-proof ability) shall be increased to IP54 or LP64 correspondingly; (2)应采用闭式司机室进行操作，以保护司机的人身健康。 (2) the closed cab shall be used for operation to protect the personal health of the driver. 二、在高温环境中，对防爆电动葫芦有特殊的要求，防护要点如下： II. In high temperature environment, there are special requirements for explosion-proof electric hoist, and the protection points are as follows: (1)电动机绕组及机壳上应埋设热敏电阻等温控装置，当温度超过一定界限时，断电停机加以保护或在电机上增设强冷措施(通常为在电机上增设一专用电风扇)。 (1) temperature control devices such as thermistor shall be embedded on the motor winding and casing. When the temperature exceeds a certain limit, power off and stop for protection or add strong cooling measures on the motor (usually adding a special electric fan on the motor). (2)司机室应是闭式装有电风扇或安装空调的司机室。 (2) the cab shall be a closed cab equipped with electric fan or air conditioner. 三、在施工场地中，对防爆电动葫芦有特殊的要求，防护要点如下： III. in the construction site, there are special requirements for explosion-proof electric hoist, and the protection points are as follows: 对于施工场地应平整，达到“四通一平”，施工用水、电、气达到使用条件；另外如碰到阴暗天气或大雾天气，应在现场设有可靠的照明灯/醒目灯、通信和消防设施，且消防通道畅通；安装设备的施工场地要与其它正在施工的系统有可靠的隔离和隔绝；有零部件、工具及施工材料等存放场地，应有相应的防风、防雨、防冻等防护措施、检验合格的零部件，暂时不能安装的应及时入库妥善保管；与电动葫芦安装相关的土建主体完工，避雷接地完善。 The construction site shall be leveled to "four connections and one leveling", and the construction water, electricity and gas shall meet the use conditions; in addition, in case of dark weather or fog weather, reliable lighting / eye-catching lights, communication and fire fighting facilities shall be set on the site, and the fire fighting channel shall be unblocked; the construction site for installation equipment shall be reliably isolated and isolated from other systems under construction; there are parts and components. Tools, construction materials and other storage sites shall be equipped with corresponding wind, rain and antifreeze protection measures and qualified parts and components, and those that cannot be installed temporarily shall be put in storage in time and properly kept; the main civil works related to the installation of electric hoist shall be completed, and the lightning protection and grounding shall be complete. |
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