Precaution: This is an extensive project. Tools Required: Electricians pouch of hand tools and the various power tools necessary for the specific method of electrical service installation.Įstimated Time: Depends on the type of panel, the location, and available access to the project area. Skill Level: Advanced – Best installed by a Licensed Electrical Contractor. Installing an Underground Electrical ServiceĪpplication: Installing a Main Electric Service Panel. This electrical wiring question came from: Ed, from Hawthorne, Florida. What size circuit breaker should be installed for this?.Do I need to put the wire inside conduit or is there a type of wire I can use for under grounding that does not require conduit?.The service will be to run fans, lighting and misc.I want to run an underground electric service from the outside breaker box.Electrical Question: How should I install the cable for an underground electric service? ? Helping You to Wire It Right! See more Home Electrical Wiring Videos Check out my YouTube Channel, and Subscribe! See the Electrical Wiring Video #2 Below: