Code Alarm SRT 5500 Specifications download pdf (Page 25)

December 2013

REQUEST FOR PROPOSALS FOR

PURCHASE AND DELIVERY OF HEAVY-DUTY BUSES

RFP SRTA-2014-01

TECHNICAL SPECIFICATIONS

PAGE-25

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ambient temperature conditions. The starter shall be a heavy duty "Delco

Products Division" Model 42MT, or approved equal, as recommended by the

engine manufacturer and approved by the SRTA.

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b. The starter solenoid switch shall be interlocked so that the engine can be started

in neutral gear only with the transmission selector in neutral only. Starter will not

operate when engine is running. The interlock shall be activated by fuel pressure

or by other approved means. Other major electrical loads shall be disconnected

while cranking.

14.6 Electrical Panel

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a. Circuit breakers shall be provided to sectionalize and protect all branch circuits of

the electrical system of each coach. Any circuit without protection must be

approved by the SRTA.

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b. To the maximum practical extent, electrical distribution and control devices shall

be grouped on an electrical panel arranged for ease of access, test, and

replacement of components. The panel shall be large enough to avoid crowding

of the components and leads. Component heat build-up shall not affect the

components or mounting locations. There shall be a test plug receptacle for

electronically diagnosing the engine using portable instruments.

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c. A durable diagram shall be mounted, in the electrical panel, that identifies the

components and their function. Relays and circuit breakers shall be permanently

labeled to correspond to this diagram. Switch controlled lights shall be provided

to illuminate the main electrical panel.

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d. The location, design, and arrangement of the panel and diagrams/labels shall be

approved by the SRTA during the pre-production meeting.

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14.7 Multi-Plex System Electrical

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a. The bus will be equipped with an I/O Controls Dinex multiplex control system, or

approved equal, to minimize individual circuits and ease in troubleshooting

electrical and component failures.

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b. The main coach controller (MBC/HCNC) shall be located at the rear electical

enclosure panel (rear bulkhead). Additional DIO’s (Digital Input/Output Module)

will be located above the exit door, air tank compartment, driver’s console, and in

the rear electrical enclosure panel. The indicator lamp strip module shall be

integrated into the multiplexing system to receive commands from the master

module to turn appropriate indicator lights on and off according to programming

commands. The system shall be connected by a “ring loop” hookup.

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14.8 Wiring

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a. All wiring including cables shall be stranded copper, adequate in size to carry the

electrical load. Each harness shall contain identified spare wires (10 percent,

minimum one) and shall be installed with consideration of possible future need to

remove and replace it. All low voltage lighting shall run sufficiently cool so as to

eliminate any damage to lamps, lenses, sockets, wiring or surrounding areas.

Electrical junction boxes shall have sealed covers and openings.

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Code Alarm SRT 5500 Specifications Page 25

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