Cable arrangement and binding:<br> After those cables are laid, straighten them out first, and then tie them and fix them. Fireproof mud should be used to block holes, and cable penetration and holes must be sealed tightly.<br> Cable trench cleaning and cable ditch cover plate recovery;<br> After cleaning the cable trench, restore the cable ditch cover plate at the part where the operation is no longer carried out, and restore the remaining cover plates after finishing or wiring work is completed.
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