FMVSS 305 PDF

S1. Scope. This standard specifies requirements for limitation of electrolyte spillage and retention of electric energy storage/conversion devices during and after. NHTSA is issuing this final rule to amend Federal Motor Vehicle Safety Standard (FMVSS) No. , “Electric-powered vehicles: Electrolyte. FMVSS No. was originally drafted based on a voluntary consensus standard, the Society of Automotive Engineers (SAE) Recommended.

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Before any vehicle impact test, Vb is equal to or greater than the nominal operating voltage as specified by the vehicle manufacturer. All measurements for calculating voltage s and electrical isolation vmvss made after a minimum of 5 seconds after the vehicle comes to rest in tests specified in S6.

The electrical isolation is measured at the high voltage live parts of the vehicle charge inlet and determined in accordance with the procedure specified in S7.

Cornell Law School Search Cornell. Prior to any impact test, the requirements of Fmvas.

Fuel cell tmvss is a system containing the fuel cell stack sair processing system, fuel flow control system, exhaust system, thermal management system, 3305 water management system. For a service disconnect which can be opened, disassembled, or removed without tools, protection degree IPXXB shall be provided when tested under procedures specified in S9.

Electric energy storage device means a high voltage source that stores energy for vehicle propulsion. Working Voltage means the highest root mean square voltage of the voltage source, which may occur across its terminals or between its terminals and any conductive parts in open circuit conditions or under normal operating conditions.

It is not guaranteed to 3005 accurate or up-to-date, dmvss we do refresh the database weekly. Automatic disconnect means a device that when triggered, conductively separates a high voltage source from the electric power train or the rest of the electric power train. When the vehicle is tested according to S6, the requirements of S5. The symbol shown in Figure 6 shall be present on or near electric energy storage devices. Markings are not required for electrical connectors or the vehicle charge inlet.

At the option of the manufacturer, protection against indirect contact with high voltage sources shall be determined using the test method in subparagraph a or subparagraph b. For the purpose of determining the voltage level of the high voltage source specified in 3305. The symbol in Figure 6 shall also be visible on electrical protection barriers which, when removed, expose live fmvsx of high voltage sources.

Bypass any devices or systems that do not allow the propulsion system to be energized at the time of impact when the vehicle ignition is on and the vehicle is in neutral. In addition, the voltage between fmvs exposed conductive part of the electrical protection barrier of the high voltage source and any other simultaneously reachable exposed conductive parts of electrical protection barriers within 2.

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Connector means a device providing mechanical connection and disconnection of high voltage electrical conductors to a suitable mating component, including its housing.

FMVSS 305: Electrolyte spillage and electrical shock protection for electric-powered vehicles

High voltage source means any electric component which fmvsa contained in the electric power train or conductively connected to the electric power train and has a working voltage greater than 30 VAC or 60 VDC. At least a momentary indication shall be given to the driver each time the vehicle is first placed in possible active driving mode after manual activation of the propulsion system. Not more than 5. In addition, the resistance between an exposed conductive part of the electrical protection barrier of the high voltage source and any other simultaneously reachable exposed conductive parts of electrical protection barriers within 2.

Charge connector is a conductive device that, by insertion into a vehicle charge inlet, establishes an electrical connection fmvsw the vehicle to the external electric power supply for the purpose of transferring energy and exchanging information. The resistance between two exposed conductive parts of electrical protection barriers that are less than 2. DC high voltage sources of vehicles with a fuel cell system shall be monitored by an electrical isolation monitoring system that displays a warning for loss of isolation when tested according to S8.

In a test conducted under S6.

Direct contact protection for a vehicle charge inlet shall be provided by meeting the requirements specified in S5. Test procedure for on-board electrical isolation monitoring system.

United States Code U. The symbol shall be yellow and the bordering and the arrow shall be black. This standard applies to passenger cars, and to multipurpose passenger vehiclestrucks and buses with a GVWR of 4, kg or less, that use electrical propulsion components fmvzs working voltages more than 60 volts direct current VDC or 30 volts alternating current VACand whose speed attainable over a distance of 1. External electric power supply is a power supply external to the vehicle that provides electric power to charge the electric energy storage device in the vehicle through the charge connector.

If the probe partly or fully penetrates into the electrical protection barrier, it is placed in every possible position to evaluate contact with high voltage live parts. This includes, but is not limited to, a high voltage battery or battery pack, rechargeable energy storage device, fmvsx capacitor module. Live part is a conductive part of the vehicle that is f,vss energized under normal vehicle operation.

S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. Each vehicle to which this standard applies, must meet the requirements in S5. Spillage is measured from the time the vehicle ceases motion after a barrier impact test until 30 minutes thereafter, and throughout any static rollover after a barrier impact test.

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Indirect contact is the contact of persons with exposed conductive parts. Propulsion system means an assembly of electric or electro-mechanical components or circuits that propel the vehicle using the energy that is supplied by a high voltage source.

FMVSS Electrolyte spillage and electrical shock protection for electric-powered vehicles

This requirement does not apply under conditions where an internal combustion engine provides directly or indirectly the vehicle’s propulsion power when the vehicle is first placed in a possible active driving mode after manual activation of the propulsion system.

Passenger compartment is the space for occupant accommodation that is bounded by the roof, floor, side walls, doors, outside glazing, front bulkhead and rear bulkhead or rear gate, as well as electrical protection barriers provided for protecting the occupants from direct contact with high voltage live parts. Service disconnect is the device for deactivation of an electrical circuit when conducting checks and services of the vehicle electrical propulsion system.

Electrical isolation of a high voltage source in the vehicle means the electrical resistance between the high voltage source and any of the vehicle’s electrical chassis divided by the working voltage of the high voltage source. The electric energy storage device shall be at the state-of-charge specified in either subparagraph abor c:.

For a high voltage source that has an automatic disconnect that is physically contained within itself, the voltage measurement after the test is made from the side of the automatic disconnect connected to the electric power train or to the rest of the electric power train if the high voltage source is a component contained in the power train. During and after each test specified in S6 of this standard:.

If the on-board electric energy storage device can be externally charged, vehicle movement of more than mm by its own propulsion system shall not be possible as long as the charge connector of the external electric power supply is physically connected to the vehicle charge inlet in a manner that would permit charging of the electric energy storage device. VAC means volts of alternating current AC expressed using the root mean square value.

Calculate the electrical isolation resistance Ri according to the formula shown. For a high voltage source that has an automatic disconnect that is not physically contained within itself, the electrical isolation measurement after the test is made from both the high voltage source side of the automatic disconnect and from the side of the automatic disconnect connected to the electric power train or to the rest of the electric power train if the high voltage source is a component contained in the power train.