Surface Wiring is an old method and is usually used in areas where the branching of the circuit is likely to change often like a work shop, where the branching depends on the layout and the layout changes often. With surface wiring you can add outlets, switches and lights wherever you want easily and quickly, without tearing open a wall. You can finally get that outlet exactly where you need it. Advantage: Wiring can be relaid easily. Disadvantage: it can get damaged easily, so unsafe.
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| One Way Switch Control Two Lamp Wiring Diagram. |
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