Voltage drops on 120v but not on 240v?

jpanhalt

Joined Jan 18, 2008
11,087
Same here. Since my place is technically a "farm" there are few codes to follow. But I do like to be in compliance to the extent practical. To me, it was like safety wire on a propeller screw or cable turnbuckle.
 

Thread Starter

the_uglydog

Joined Aug 5, 2020
12
Hi, Yes we replaced the wire where the splice is in the conduit. They do that a lot here. Any splices on smaller wires I've had them put on wire nuts and checked that they are secure, I also have the closed end of the nut facing up so moisture won't collect in it, but I am a bit afraid of the main wires connected like that. Electrical tape here is just crap from China and looses contact quickly leaving sticky residue all over. Codes are almost nonexistent here as are building inspectors. I try to make everything as close to what we have in the US, but every time I turn my back, they shortcut something and I have to follow everyone and check it all. Those Morris connectors look like what were used on newer houses I worked on in the US at the main connection to the drop, so I figured they would work good here. They are insulated, have copper tubes the size of the wires for them to fit in and have screws to set the wires securely. Thanks for all the input. the dog
 

jpanhalt

Joined Jan 18, 2008
11,087
For something outdoors like that, self-fusing tape would be my first choice. Is it available? Old time friction tape is better than nothing.

Do you have access to vinyl or PVC tubing (often called Tygon--https://en.wikipedia.org/wiki/Tygon_tubing)? It's usually clear and flexible. You can heat seal it. One of the neat things about it is that it swells in carbon tetrachloride or chloroform and possibly other solvents. In its swollen condition, you can put it over a splice, let it dry out and shrink. It's like hear shrink, but thicker. If it is has an open end, like over a wire nut, you can heat it, then squeeze with pliers to seal it. I do that to make caps for my grease guns.
 

Thread Starter

the_uglydog

Joined Aug 5, 2020
12
I haven't seen friction tape here. Everyone uses the cheap plastic electrical tape, none of the stores seem to have anything better. I did bring a roll of that clear tubing, so I'll try what you suggested. If you heat it you should be able to squeeze it sealed all over it. right? Have you tried that liquid electrical tape? I use that on the connections on the trucks and cars, it spreads with a brush then dries to a flexible coating similar to the jacket of the wire, I brought a few bottles of that, I've been a bit hesitant to use it on high voltage.
 

jpanhalt

Joined Jan 18, 2008
11,087
The tubing I mentioned doesn't shrink unless it's been in solvent. When I heat it (or the pliers) , it is just to squeeze a section. Long nose pliers or hemostats work great for that.

I have very little experience with liquid electrical tape, It should work (if thick enough) and will not leave goo behind like cheap electrical tape. That sounds like a good alternative. I suspect it is as difficult to remove as self-fusing tape.
 

Thread Starter

the_uglydog

Joined Aug 5, 2020
12
Yes! The liquid electrical tape works great, it doesn't come off and you can put on multiple coats. I use it to waterproof connections on the trucks and cars and I brought some here, I think I bought it at Home Depot. It's very difficult to get off. I'll try some of it on exposed connections so I can see how it does. We found another problem. The wires from the utility pole to our pole are 22mm2, large enough for 60 amp service, but the wires in the conduit leading to the meter are only 8mm2, ridiculous! The utility is replacing them with the correct 20mm2 it seems it will take about 2 more days. (we use 3 service meters) I don't know how it even worked at all.
 

MaxHeadRoom

Joined Jul 18, 2013
30,772
Not sure if it will serve your purpose, but I have used industrial heavy wall heatshrink, not the electronic circuitry version, and filled the joint with RTV before shrinking, if ever needing to work on it later, it can be cut and the RTV peeled off.
Good for submerged/high moisture applications.
Max.
 

SamR

Joined Mar 19, 2019
5,526
I love liquid electrical tape! It is primarily a marine product that I have used on my boat wiring connections for many years along with other uses here and there. Makes a good watertight seal. Similar to liquid rubber adhesive but much much better. It will get gummy but a few drops of acetone will bring it right back. Multiple coats will give a nice thick covering. It is not that difficult to remover. Just slice with a knife and peel it off. Comes in a small can with a screw cap with the applicator brush under the cap. Now available in colors and not just black.
 
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