What was found
(CAN) TRANSFORMER IS DESIGNED TO STEP DOWN 115 VAC SUPPLY VOLTAGE TO A MAX OF 5 VAC REQUIRED BY REST OF CIRCUITRY. OUTPUT WIRES FROM ABOVE MENTIONED TRANSFORMER ARE INCREASED IN GAUGE SIZE TO 16 AWG, SO THAT IN EVENT OF A GROUND FAULT TRANSFORMER OUTPUT WIRING WOULD HAVE SUFFICIENT ELECTRICAL CURRENT CAPACITY TO TRIP CB AND PROTECT OVER ALL CIRCUIT INTEGRITY. DUE TO A DESIGN OVERSIGHT, ONE OF TWO TRANSFORMER OUTPUT WIRES SELECTED WAS OF INSUFFICIENT SIZE, 24 AWG. THEREFORE, ANY GROUND FAULTED COMPONENT PRESENT ON ITS ASSOCIATED LIGHTING BUSS IE: LAMP MODULE, CAUSED THIS WIRE TO ACT LIKE AN ELECTRICAL HEATING ELEMENT. THIS CAUSED A SERIOUS FIRE HAZARD SITUATION, DUE TO EXCESSIVE CURRENT FLOW WITHIN CIRCUIT.