for the job I did a troubleshoot for two exit lights not working, a receptacle in a built in cubical not working and a breaker tripping. After findings I replaced the 2 exit signs, traced down the tripping breaker and did a wire tap to remove a 2nd hot wire tied into the circuit, the cubical I was able to remove the special cubical plug and tested the power to make sure getting correct volts. It was reading correctly at the tabs where the plug snaps in, but the plug itself was not reading a neutral. A space heater was recently being used and I am to believe the space heater burned it up. Customer needs to track down cucbical company to order this specific type of cubical plug. We don’t not carry this type of plug.