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山东升降货梯电源安全如何解决?

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If Shandong Huoti first power from the high potential side out after a part of the control switch to Shandong Huoti brake coil, and then switch back to partially control the zero line, then there will be security problems. Because, this

time due to insulation damage on the ground, the back of the switch will be short and fail if the brake coil at low potential.

Directly through Shandong, Shandong cargo lifter lift if the power from the high potential side out after the freight elevator brake coil, and then switch back to the zero line of the control, then the problem will be even greater. At

this point, if the brake coil Shandong cargo lifter at a low potential to cause damage to the insulation, all the switches on the brake will all fail, the brake automatically because of direct electrical gate, brake brake brake can not be closing.