LABORER AT WASH PLANT WAS CLEANING UP AROUND THE 1"" TRANSFER BELT WHEN HE BRUSHED UP AGAINST ELECTRICAL LINE HANGING FROM THE HEAD PULLEY OF THE1"" TRANSFER BELT TO THE TAIL PULLEY OF THE 01 ST ACKER. THE INSULATION ON THE 220 VOLT LINE WAS DENERGIZED CAUSING A SHOCK TO EMPLOYEE AS HE MADE CONTACT WITH THE LINE.