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CITY OF SOUTH BEND <br />shall be machine crimped, to UL standards, with a high quality crimping tool that <br />produces crimps for a given size wire and terminal that are precisely alike in <br />appearance and performance. Crimping pressure must be controlled by a ratchet <br />device on the hand tool or a corresponding pre -calibration in the crimping jaws of <br />an automated machine. Crimping pressure can neither over -stress nor under stress <br />the terminal -barrel -machined dies, <br />No splices shall be permitted except for connection of "pig -tail" devices. Butt <br />splices are permitted for connection of "pig -tail" devices. The use of IDC <br />(Insulation Displacement Connector) connectors, i.e.: "3M Scotchlok" type <br />fasteners, is not acceptable. <br />The various wiring installations as supplied with this vehicle shall be of the <br />automotive "harness" design. For ease of identification and future replacement <br />these harnesses shall be engineered and manufactured in the following sections. <br />1. Engine compartment harness. <br />2. Driver's control console harness. <br />3. Main module harness. <br />4. Chassis rear lighting harness. <br />This agency is extremely concerned the primary manufacturer has the ability to <br />control, warranty and replace the harnesses. To that end, the primary <br />manufacturer shall not subcontract the construction of these harnesses. <br />WIRING CRITERIA AND CIRCUIT BOARD <br />All wiring devices, switches, outlets, etc., except circuit breakers, shall be rated <br />carry a minimum of one hundred and twenty-five percent (125%) of the <br />maximum ampere load for which the circuit is protected. All wires carrying a load <br />of more than 5 amperes shall be a minimum of 16 AWG. There shall be a master <br />electrical component panel located in the vehicle. It is preferred that the master <br />panel be mounted on or near the bulkhead of the patient compartment. Standard <br />circuit breakers, relays, and diodes shall be mounted on a printed circuit board <br />that is easily accessible. All components on the circuit board are to be <br />permanently labeled as to their function. <br />The printed circuit board shall be designed and manufactured as follows: A screen <br />printed board with all circuits fully numbered and labeled. The circuit board shall <br />be a double -sided copper trace printed circuit with a double -sided laminated <br />isolator. The board shall be non -photo image able solder mask over bare copper <br />with hot air leveled solder over non masked copper. Fuse capacity is the <br />beginning factor in calculating trace width to ensure proper current carrying <br />10083-0016 08/27/18 <br />29 <br />