Burying Splices For Limited Energy

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JFletcher

Senior Member
Location
Williamsburg, VA
Did a limited energy landscaping lighting call today - nothing (4 LED lights) worked from the 120V to 12V transformer/rectifier. Found the factory ID connections all bad, replaced them with standard wire nuts and sealant supplied with the lighting kit. This seemed still a poor solution to me - is there a better way to do this? I've done a lot of limited energy (comm) work, but nothing with splices (which I avoided if possible) let alone ones that will be buried underground (HO was going to do the trenching of the cables from the t/r).
 

hbiss

EC, Westchester, New York NEC: 2014
Location
Hawthorne, New York NEC: 2014
Occupation
EC
Nothing that says you couldn't use a communications buried splice kit but I think that's going to get expensive. Ideal makes gel filled wire nuts that are used for irrigation and LV landscape lighting. I don't get involved in those areas but I would think they have to work and last otherwise they would use something else.

-Hal
 

kwired

Electron manager
Location
NE Nebraska
Shrink tubes are one option- not so easy to take apart and reuse later on but at same time shouldn't need to be taken apart because of failure in most instances.
 

kwired

Electron manager
Location
NE Nebraska
I prefer the filled wire nuts, have installed hundreds never a failure. I have seen a couple of failures on the heavy wall heat shrink w/sealer.

Been using HW shrink for nearly 30 years - never seen it fail. Have dug up repaired conductors and found a new failure adjacent to a shrink covered repair several times. Maybe even seen a repair inside a shrink tube that had failed but never seen the shrink tube itself fail to seal the repair.
 

SceneryDriver

Senior Member
Location
NJ
Occupation
Electrical and Automation Designer
Shrink tubes are one option- not so easy to take apart and reuse later on but at same time shouldn't need to be taken apart because of failure in most instances.

+1 on the adhesive-lined heat shrink tube. Easiest mistake is not getting the joint hot enough. Second easiest is getting it too hot. Use a heatgun, and leave the torch on the truck. Solder-splicing might be a good idea too, especially it it's buried.

I get my heatshrink tubing here:

http://www.heatshrink.com/heat_shrink_tubing/o2b2_s_spl.asp

Good selection and good prices.



ScerneryDriver
 
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