The reserved cable shall be provided with a heat-shrinkable cap (instead of the previous insulating tape package) and the identification of the reserved wire number for later use.<br> The AC and DC circuits shall be identified by color separation to facilitate later maintenance.<br> The cable head and the sign should be fixed by binding, and the binding spacing of the wire harness should be 90 ~ 180 mm.<br> When wireless slot wiring is used, the spacing between terminal block and door frame should be not less than 200mm, cables should be bundled in a single bundle, and the spare core should be 250mm~300mm higher than the terminal block, and it should be sealed with heat shrinkable sleeve.
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