在紧固配件时，一定要用扳手牢牢地固定住长直通管接头。
Always make sure you hold the bulkhead fittings securely with a wrench when tightening fittings.
连接上测试电缆，并用一个扭矩扳手紧固到指定的扭矩。
Connect the test cable and tighten to specified torque with a torque wrench.
母线槽的连接采用标准紧固件和特制弹性垫圈，并用扭力扳手旋紧，保护接触良好。 。
When connecting bus duct, standard fastener and special elastic washer are used, and fastened with torque spanner, to keep electrical contact in good manner.
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