Illinois Administrative Code › Title 92 - TRANSPORTATION › Part 435 - MINIMUM SAFETY STANDARDS FOR CONSTRUCTION OF MULTIFUNCTION SCHOOL ACTIVITY BUSES › Appendix C - Electrical System Wiring through Filter, Oil

Current through Register Vol. 48, No. 28, July 12, 2024
a) ELECTRICAL SYSTEM WIRING
1) All wiring for lamps and other electrical devices
				shall be as recommended for automobiles, motor coaches, and heavy duty starting
				motor circuits in SAE Recommended Practices J1292 (October 1981) and J541a
				(October 1996) and in other practices or standards referenced in those
				documents, unless preempted by FMVSS. (See the FMVSS ( 49 CFR 571 ) for
				requirements.)
2) All circuits may be divided into independent
				circuits. Whenever feasible, all other electrical functions (sanders,
				windshield wipers, heaters, defrosters, etc.) shall be provided with
				independent and properly protected circuits.
3) Each body circuit shall be coded either by
				numerals and/or letters at approximately 100 mm (3.9 ") intervals, or by color
				and numerals and/or letters, or by colors only. The codes shall appear on a
				diagram of the circuits in a readily accessible location.
4) A separate fuse, circuit breaker, or electronic
				circuit protection shall be provided for all circuits, except that components
				of the engine starter and ignition circuits may be protected by other
				means.
5) Wires not enclosed within the body shall be
				fastened securely at intervals of not more than 460 mm (18.1 ").
6) All terminals and splice clips shall be
				accessible.
7) The chassis manufacturer shall install a readily
				accessible electrical terminal so that the net body and chassis electrical
				current flow can be indicated through a chassis ammeter without dismantling or
				disassembling the chassis component. The chassis wiring to this terminal shall
				have a current carrying capacity at least equal to the maximum generator
				output.
8) A noise suppression switch that is capable of
				turning off noise producing accessories, including, but not limited to, heater
				blowers, defroster fans, auxiliary fans and radios, must be installed.
b) EMERGENCY EXITS
Each opening for a required emergency exit window or
				door must be outlined around its exterior perimeter with, at a minimum, one
				inch (2.54 cm) wide retroreflective tape. All retroreflective tape must be on
				the exterior surface of the bus and conform to all requirements of
				49
				CFR 571.217. Retroreflective tape can be
				located on the rear bumper or rub rail provided the space under the emergency
				exit door or emergency exit window is not adequate to accommodate the tape, or,
				provided rivets are present that prohibit the tape from being applied
				properly.
Optional emergency roof exits are allowed.
				Retroreflective tape is also optional.
1) Side
Inside release mechanism must be protected against
				accidental release; easily accessible; and readily operated manually without
				the use of remote control, power device, or tool.
2) Rear
Inside release mechanism must be protected against
				accidental release; easily accessible; readily operated manually without use of
				remote control, power device, or tool.
Shall have permanently attached inside and outside
				release handles. Outside release handle must be non-hitchable.
Rear exit shall hinge on right; open outwards; have
				a 24 inch or more clear horizontal opening and 45 inch or more clear vertical
				opening above floor. Glazing shall be installed in upper and lower portions.
				Door and rubber seal must not be defective.
3) Window
Optional emergency windows are allowed. They must be
				labeled "Emergency Exit" in letters at least two inches high, of a color that
				contrasts with its background, located at the top of or directly above the
				window on the inside surface of the bus.
4) Alarms and Locks
Both audible and visible alarms shall alert the
				driver when engine is running and any emergency exit door either:
A) Is not fully latched, or
B) Is locked.
An audible alarm shall alert the driver when engine
				is running and any emergency exit window either:
A) Is not fully latched, or
B) Is locked.
The engine starting system shall not operate while
				any emergency exit door or window (optional or required) is locked (i.e.,
				release mechanism that requires a key or combination, a "hasp lock" or a
				sliding latch) from either inside or outside the bus.
Alarm cut-off or "squelch" control is
				prohibited.
On a van conversion, any rear cargo door inside
				locks of the type installed by the chassis manufacturer (such as commonly used
				in cars - "push/pull" type) shall be made inoperable. The mechanism cannot,
				through jarring, vibration, etc., cause the door to become locked and be
				inoperable from the inside or outside.
No alarm is required for roof hatches.
c) ENTRANCE DOOR
1) Physical Requirements
The service entrance shall have a minimum vertical
				opening of 1.7 m (67") and a minimum horizontal opening of 610 mm (24").
Door shall be located to right of operator and
				operated by an over-center control. Upper portions of door shall be safety
				glass or equivalent. Vertical closing edges shall be equipped with flexible
				material for a proper seal and to prevent injury.
Each door on the right side of the vehicle, hinged
				or sliding, except the service door shall be made permanently inoperable by
				means other than the rub rail on the outside of the body.
The service door shall be either manually or power
				operated by the seated driver. When in the closed and secured position, the
				door operating mechanism shall prevent accidental opening but shall afford
				prompt release and opening by the driver. No exposed parts of a door operating
				mechanism shall come together so as to shear or crush fingers. The vertical
				closing edges of a service door shall be padded to lessen chance of
				injury.
A power operated door shall be equipped for
				emergency manual operation in case of power failure. Instructions for emergency
				operation of a power operated door shall be affixed permanently on the interior
				of the door in letters at least 12 mm (.5") high.
2) Locks and Alarms
A service door lock is not required, but if any type
				of service door locking system is installed on the bus, the system shall
				conform to at least one of the following:
A) The locking system shall not be capable of
				preventing the driver from easily and quickly opening the service door from
				inside the vehicle; or
B) A locking system that is capable of preventing
				the bus driver from easily and quickly opening the service door shall include
				an audiovisual alarm. The alarm shall be audible and visible and must alert the
				driver when the engine is running and the service door is locked. An alarm
				disconnect, "squelch control", or other alarm defeating or weakening device
				shall be prohibited; or
C) A locking system shall not be capable of
				preventing the bus driver from easily and quickly opening the service door
				except when a person outside the bus uses a key that is not capable of locking
				more than one of at least 1000 of the door manufacturer's key locking
				systems.
d) EXHAUST SYSTEM
1) General
"Exhaust system" includes each component used to
				conduct gas from an engine exhaust port (manifold) to an authorized exit point,
				including each sealing, connecting, and supporting component. Exhaust system
				shall be outside body and attached to chassis. Size of tail pipe shall not be
				reduced after it leaves muffler. Any flexible component that contains exhaust
				gas shall be of stainless steel. System shall not leak. System shall have an
				outlet at its discharge ends only.
Exhaust system shall be shielded from either
				accidental contact, "hitching to", or "standing on", except that no shielding
				is required at the discharge end. A chassis or body component may provide
				required shield.
AGENCY NOTE: As mandated by the United States
				Environmental Protection Agency (USEPA), diesel-powered engines manufactured
				after December 31, 2006 are required to meet stricter standards that will
				reduce emissions of particulate matter and nitrogen oxides into the atmosphere.
				School bus manufacturers may be required to modify exhaust systems to meet the
				USEPA requirements, e.g., mufflers may be replaced with after-treatment devices
				that significantly reduce toxins released into the atmosphere. Modifications to
				exhaust systems made in compliance with the USEPA requirements are acceptable,
				provided they do not impact the safe operation of the school bus.
2) Discharge
The exhaust pipe, muffler and tail pipe shall be
				outside the bus body and attached to the chassis.
The exhaust system shall be insulated from any
				insulated wire, flammable material, brake hose or line, or fuel system
				component by a securely attached metal shield at any point where the exhaust
				system is 11.8 inches (300 mm) or less (four inches (101.6 mm) or less if
				diesel powered engine) from the components listed in this subsection
				(d)(2).
The tail pipe may meet the chassis manufacturer's
				standard configuration. However, the tail pipe shall not exit beneath any fuel
				filler location or beneath any emergency exit door.
The tail pipe shall extend out to, but not more
				than, 1 inch beyond the perimeter of the body, the bumper or the rub
				rail.
The shielding of engine compartment components shall
				be governed by the chassis manufacturer's standards.
Each gas conducting component that is not of
				stainless steel shall be of commercial heat and corrosion resistant exhaust
				system material and shall be nonflexible.
e) FILTER, OIL
A "full flow" replaceable element or cartridge type
				engine oil filter of approximately 1 liter (1 quart) capacity shall be
				installed. The purchaser may specify additional "full flow" or "by-pass" type
				filters, or oil treatment devices.