![]() This method can be used if wiring is deep in the ground and no possible damage from gardening tools hitting it.Ī better choice for wires that you fear might get cut again will be connectors with a thick protective covering on them and a silicone-based sealer inside for waterproofing.īefore you use the splice kit, you will need to cut the damaged wiring on either side of the break and strip the outer sheathing back about three inches. This will coat the connection and cover the wire with adhesive, oozing out the ends of the tubing as it shrinks. Inside the heat shrinkable tubing is an adhesive liner that will melt when heated. Step 5 - Use a Splice KitĪ splice kit containing an inline connector will join the two ends of a break securely in a polyolefin sleeve, which will shrink when heat is applied, to maintain a water-resistant connection. They have silicone inside the connector which will seal out the moisture after you have inserted the wiring.ĭo not reuse these once you remove them, however, because you may strip away too much of the silicone when you pull it off, and it will no longer be watertight if reused. These are a must when joining wires together in the watertight box. ![]() ![]() ![]() Special sealing box cable connectors provide the waterproof seal for the electrical wiring that enters the box as well. This will protect the connections from corroding due to moisture and chemical elements from the surrounding ground. If you are going to add additional circuitry to your existing wire underground, purchase waterproof junction boxes where connections can be made inside the box. Step 4 - Purchase Junction Boxes and Cable Connectors Then, dig along the sight path between the electric cables exit and entry points. Use a non-contact voltage tester afterward to confirm that the cable is no longer live. Step 3 - Dig up the Affected Wireįirst and most importantly, make sure you turn the main electrical supply off before digging or attempting any repair to, or in addition to, the electrical wire underground. may incur a small fee the best practice is to call and ask. Locating other underground wires for light poles, barns, pools, garage, etc. Most provide this service for free when locating the main power wires running from their incoming source to your meter or box. They work good, although more money.Step 2 - Call the Phone and Utility CompaniesĪnother alternative is to phone your local electric company and use their locating service. They are like a short groundbar with a rubber top that is open on the bottom. Use a little anti-oxidant, and don't tape the splice. In my opinion the open bottom box with standard wirenuts pointing up will last the longest. I would like to think I have seen every variety manufactured fail, even some homemade ones. I have dug up and repaired my share of burned up direct buried splices. At least the conductors won't be I the mud if you ever have to work on them again. If there is a high water table, it is not going to matter. I normally throw a spackle bucket or two of blue stone under the box for drainage. I don't think they are UL listed, and had inspection problems in the past. The other one we use, for boxes in the landscape, is the plastic "Pencell" open bottom box. They cost a lot more than an irrigation control box type. They are the only ones I know of that are UL listed. They are made out of a composite concrete and fiberglass. In the handhole are feeder or branch-circuit conductors. Or in accordance with 250.96(A) if the conductors Metal covers and other exposedĬonductive surfaces shall be bonded in accordance withĢ50.92 if the conductors in the handhole are service conductors, Of the enclosure, such as “electric.” Handhole enclosureĬovers shall require the use of tools to open, or they shall Mark or logo that prominently identifies the function Handhole enclosure covers shall have an identifying Splices or terminations, if present, shall be listed as suitable The enclosure, but they shall not be required to be mechanically Underground raceways and cable assembliesĮntering a handhole enclosure shall extend into To the removable cover shall be taken from the end of the For handhole enclosures withoutīottoms where the provisions of 314.28(A)(2), Exception, With 314.28(A) for conductors operating at 1000 volts orīelow, and in accordance with 314.71 for conductors operatingĪt over 1000 volts. Handhole enclosures shall be sized in accordance That can be expected to bear on underground enclosures. Information on deliberate and nondeliberate traffic loading Informational Note: See ANSI/SCTE 77-2002, Specificationįor Underground Enclosure Integrity, for additional They shall be identified for use in underground Handhole enclosures shallīe designed and installed to withstand all loads likely to be
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