How to use the Noah method underground cable?

Buried laying, generally 0.8 meters or less, at least to the permafrost layer, armored cables, if the low voltage, it is YJV22 or YJV23 (for example), dig a trench, the bottom is soft soil, there is no need to lay without stones Sand, if not, lay 10cm sand, and then lay the cables. After laying, lay 20cm thick sand, cover with bricks, cover with soft soil, then backfill, don't fill big stones, let him pick them out, if necessary, bricks Above, 30cm is compacted, (generally do not do), pay attention to avoid pipelines, especially gas and heat pipelines, cross, walk from the bottom, separated by more than 30 meters, don't forget to cover the bricks, it is best to be separated by half a meter in parallel If you encounter the road, you need to deepen the burial, at least one meter, and add a protection pipe, the protection pipe should be half a meter on both sides of the road (the specification seems to be one meter or 2 meters, can't remember...), the protection pipe is flared , If necessary, it can be grounded by a protective tube. Pay attention to whether the cable is damaged before the cable is concealed. Check the degree of damage and whether it needs to be replaced. At the cable trench, or make one every 30-50m, there must be protection pipes or protection wells in and out of the ground.

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Underground Cable Tester, Wire Tester Portable Locator Wire Tracker , Detecting Wall and Underground Cables, Electrical Lines, Gas and Water Supply Pipeline Path

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• Detecting cables, electrical lines-water/gas supply pipelines buried in wall or earth

• Detecting and Locating breaks and short circuit in cables and electrical lines buried in wall or underground.

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• Detecting the laid metal tap water pipe and metal heating pipe.

• Detecting interruptions and short-circuits in floor heating.

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• Detecting fuses and assigning current circuits,tracing sockets and junction boxes having accidentally been covered by plastering.

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• The transmitter is integrated with the function of AC/DC voltmeter, which can measure 12 to 400V AC/DC voltage on a linear basis.

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