A parent maintenance volunteer at a church summer camp devised this splicing technique for a feeder he had cut through while digging a drainage trench. It is understandable that he would hit the eighty ampere feeder as it was put in years ago by volunteers working in very rocky soil. The depth of burial is about six inches. I thought his use of an acorn clamp and a NM cable connector as splices was quite original. The plastic pipe was how he had planned to enclose the splice. He was going to fill both ends of the pipe with caulking.
Luckily he called me to ask how to turn the feeder back on and when he was halfway through the description of what he was doing I told him to stop what he was doing and I drove out the next day to find this.
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Tom