were running 3/32" dia wire,,,,,,,,aprox 27 volts,,,,,,,,450 amps,,,,,,,,,,,,theres no reason this should be happening,,,,,,it only starts around the last 1/4" of fill in the 1" thick single bevel groove , all the way to the cap , especially in the cap.........transverse cracks , some carry all the way through , some just about an 1/8" , from the toe toward the center.....?????????
whats going on here....?