Electric line is very thick, there are four small cable how to peeling
Should it be a copper power cable? Only the corresponding voltage level of the insulation tape, etc. to the cable three (four) core, respectively, to distinguish the sequence of the package up to avoid the cable inside the moisture and affect the insulation
Only 400W. Not enough words directly change the power of a large point on it.
In the "construction site temporary electricity safety technical specifications" did not mention water and temporary electricity can not be together, you can press the cable straight to the practice (0.7m up and down about 50mm fine sand back to fill the original soil, the upper Cover hard protection) to the construction, the appropriate widening of the cable trench, so that water and parallel lines.