1756-A7K 底盘 接地电极导体
【产品详情】
制造者 | 罗克韦尔自动化 |
品牌 | 艾伦-布拉德利 |
零件号/目录号 | 编号:1756-A7 |
系列 | ControlLogix |
模块类型 | 底盘 |
Allen-Bradley 1756-A7K 应安装在专为特定环境条件设计的适当外壳中。1756-A7K 设计在水平后面板组件上。此机箱所需的安装片是 2 个顶部和 2 个底部。该机箱的相对湿度为 5-95%,无冷凝。该机箱在 2-10 Hz 时的工作振动为 500 g。该底盘的工作冲击为 30 g。该底盘的非工作冲击为 30 克。1756-A7K 的重量约为 1.1 千克(2.4 磅)。此机箱的最小机柜为 50.8 x 60.9 x 20.3 厘米(20 x 24 x 8 英寸)。
请记住将机箱接地。使用额定温度为 90 °C (194 °F) 或更大的实心或绞合 8.3 mm2 (8 AWG) 铜线连接功能性接地土壤。使用额定温度为 90 °C (194 °F) 或更大的实心或绞合 2.1 mm2 (14 AWG) 铜线连接接地的保护土壤。将螺母拧紧在保护土壤地面上,以获得 16.27 N•m (12 lb•in) 的扭矩。将每个机箱的接地导体(功能性和保护性土壤接地)连接到接地总线上的螺栓。使用接地电极导体将接地母线连接到接地电极系统。接地电极导体至少使用额定温度为 90 °C (194 °F) 或更大的实心或绞合 8.3 mm2 (8 AWG) 铜线,以防止 EMI。美国国家电气规范确定了接地电极导体的安全要求。
1756-A7K 底盘 接地电极导体
【英文介绍】
Allen-Bradley 1756-A7K shall be installed in an appropriate housing designed for specific environmental conditions. The 1756-A7K is designed on a horizontal rear panel assembly. The mounting pieces required for this case are 2 tops and 2 bottoms. The relative humidity of the chassis is 5-95%, and there is no condensation. The case has an operating vibration of 500 g at 2-10 Hz. The chassis has a working impact of 30 g. The chassis has a non-working impact of 30 grams. The 1756-A7K weighs about 1.1 kg (2.4 lb). The minimum cabinet size of this chassis is 50.8 x 60.9 x 20.3 cm (20 x 24 x 8 inches).
Remember to ground the chassis. Use solid or stranded 8.3 mm2 (8 AWG) copper wire rated at 90 °C (194 °F) or greater to connect the functional ground soil. Use solid or stranded 2.1 mm2 (14 AWG) copper wire rated at 90 °C (194 °F) or greater to connect the ground to protective soil. Tighten the nut onto the protected soil floor for 16.27 N•m (12 lb•in) of torque. Connect each chassis's ground conductor (functional and protective soil ground) to the bolts on the ground bus. Connect the ground bus to the ground electrode system using the ground electrode conductor. Use at least solid or stranded 8.3 mm2 (8 AWG) copper wire with a temperature rating of 90 °C (194 °F) or greater for grounding electrode conductors to protect against EMI. The National Electrical Code defines safety requirements for grounded electrode conductors.
1756-A7K 底盘 接地电极导体
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