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3.4.14 The contractor shall install NMEA interface cables between the radar, GPS and depth sounder and demonstrate that these equipments exchange data as designed. 3.4.15 The contractor shall provide and install all sound signaling devices required by federal regulations. 3.4.16 All electronics to be mounted to reduce increase protection and reduce damage from water. 3.4.17 All wiring to be enclosed and identified. Note:Appropriate chaNts, coupler, cables, cross-over, transducers, sounder devices and connections shall be supplied by the contractor. 3.5 Electrical System: 3.5.1 An electrical generator(diesel), tied into one of the fuel tanks with shut off valves to isolate the fuel system. A minimum rating of 6500 watts will be installed. There will be visual and audible alarms for engine and electrical operation malfunctions with the ability to silence the audible alarm. These will be located at the helm. 3.5.2 A master propulsion engine battery disconnect switch shall be provided and located in the cabin. The switch shall disconnect all batteries from the distribution system. The switch shall allow either propulsion battery pair or both battery pairs to be connected to the distribution system. 3.5.3 Disconnect switches shall be provided with a field disconnect to the alternators. 3.5.4 The distribution system shall allow either propulsion alternator to be used for charging either, or both,propulsion engine battery pairs. 3.5.5 Wiring shall be color coded or labeled in accordance with the recommendations and standards of the ABYC. Wiring shall be run in minimum 300 degree, heat resistant (SXL) looms. Wires to equipment and electrical outlets shall be provided with a minimum three- inch service loop allowing replacement of the equipment or outlet. 3.5.6 Penetrations of wires and cables through watertight structure shall be watertight. Four (4) spare watertight penetrations shall be provided in each watertight bulkhead, with the eXCeption of the collision bulkhead. 3.5.7 Circuit breakers shall be located in the cabin/pilothouse, near the steering station. Breakers shall allow use as switches. At least four (4) spare breakers shall be provided. Breakers shall be provided and labeled for at least the following functions: 3.5.7 A Master breaker for each panel as per ABYC. 3.5.7 B Cabin/pilothouse internal lighting. 3.5.7 C Navigation lights. 3.5.7 D Control panel instruments. 3.5.7 E External floodlights. 3.5.7 F Emergency beacon. 3.5.7 G Searchlights. 3.5.7 H Radar 3.5.7 I Global positioning system. 3.5.7 J Radio systems. 3.5.7 K Cabin/pilothouse heater 40,000 BTU rating minimum. 3.5.7 L Engine compartment lighting. 3.5.7 M Engine block heaters. 3.5.8 A cable with a 20-amp capacity shall be run from one spare breaker to a terminal strip adjacent to the steering station, if required. 3.5.9 A cable with a 20-amp capacity shall be run from one spare breaker to a terminal strip on the aft cabin/pilothouse bulkhead, near the installed bench seat, if required. 3.5.10 A master amp meter and master voltmeter shall be installed at the breaker panel(s)to indicate the total electrical load for the 12-volt system. 10