This is particularly true around the septic tank. Do not use thin wall conduit (EMT) for underground or outdoor installations.Īn underground feeder cable can be buried without conduit protection, but physical protection for underground cable is highly recommended to reduce the risk of spading through the cable later. High-density polyethylene conduit is suitable for underground installation. Rigid PVC conduit can be used above ground. However, aluminum conduit is not recommended for installation where it is directly in contact with soil. Rigid metal conduit made from aluminum or steel provides equivalent wire protection. Several kinds of conduit are acceptable for outdoor use. Running wires through sealed conduit provides physical, water and corrosion protection. In either case, protection from physical damage, water and corrosion must be provided. One method is to place electrical wires inside a conduit. Two methods, or a combination of the two, are common in outdoor wiring. The circuit breaker or fuse supplying this circuit should be clearly marked at the service entrance location. Power to the septic system should be from a single branch circuit with no other loads. Avoid routing buried wiring through existing or anticipated gardens or landscaping areas to minimize the chances of damage due to spading.
#Septic splice box in riser code
Power to the pump and alarm system, when located outside a building, will most frequently be supplied by an underground branch circuit from a nearby service entrance or subpanel.įollow electrical code specifications for materials and burial depths. Often septic system installers must work with electricians to understand the needs of the system being installed. Get Onsite Systems articles, news and videos right in your inbox! Sign up now.Īuthor’s note: Be sure all electrical work is done by the appropriately licensed professional required in your jurisdiction.
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