How To Make an Underground Cable Splice

';	I hit an un-located 2″ conduit with a trencher, breaking the conduit and pulled about 40′ of 3/0 THHW coated neutral wire out of the conduit… © By: Dave Rongey

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Making Underground Cable Splices Accessible
[ad#block]Question: I hit an 2″ conduit that we could not locate with a trencher, breaking the conduit and pulled about 40′ of 3/0 THHW coated neutral wire out of the conduit. Can I pull a new length of 3/0 into the conduit and splice it to the undamaged portion of cable. Can I then install an expansion sleeve over the splice point to provide conduit continuity.

This electrical question came from: David, a Contractor from Memphis, Tennessee.
Additional Comments: Very effective and easy to use.

Dave’s Reply:
Thanks for your electrical question David.
David, if you make a splice with the cable it should be made accessible. It would be best to pull in the new cable and install a christy box in the location of the splice.

The Following links will assist you with your electrical question:

Electrical Code for Conduit Fill

Electrical Junction Box Splice

Emergency Electrical Splices

Wiring Electrical Codes

splicing wires

Electrical Junction Box Splice
Electrical junction box splices can be made safely when you understand the method. This example will show you how its done step by step and shows how to make a junction box splice and the related electrical codes.

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Unless otherwise posted, please refer to the following Guidelines when working on Electrical Projects:

Skill Level:
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Electrical Tools Required:
Basic Electricians Pouch of Hand Tools, a Voltage Tester and a Multi Meter.

Estimated Time:
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Precaution:
Identify the project circuit, turn it OFF and Tag it with a Note before working with the wiring.

Important:
Modifying existing electrical circuits or installing additional electrical wiring should be done according to local and National Electrical Codes, with a permit and be inspected.