Final answer:
Buried electrical wire should be 18 inches deep under parking lots and driveways and 6 inches deep under landscaping, though always consult local building codes for specific requirements.
Step-by-step explanation:
The question about how deep buried wire should be under parking or driveways, and under landscaping, is related to practices in civil or electrical engineering, particularly in relation to safety and building codes. In general, the standard depth for burying electrical wire under parking lots and driveways is 18 inches to protect the wire from being damaged by vehicles. For landscaping areas, wire can be buried at a shallower depth, typically around 6 inches, since these areas will not be subject to the same heavy loads as driveways.
It is always important to check local building codes and regulations, as they may vary and have specific requirements for wire installation depths based on local conditions and safety considerations. The depths mentioned may also vary depending on whether the wiring is protected by conduit or direct burial cable rated for exterior use.