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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Direct contact protection for a connector shall be provided by meeting the requirements specified in S5. The symbol in Figure 6 shall also be visible on electrical protection barriers which, when removed, expose live parts of high voltage sources.

Cables for high voltage sources which are not located within electrical protection barriers shall be identified by having an outer covering with the color orange.

During and after each test specified in S6 of this standard:. 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.

United States Code U. Fuel cell system is a system containing the fuel cell stack sair processing system, fuel flow control system, exhaust system, thermal management system, and water management system. Voltage Vb is measured across the two terminals of the voltage source.

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.

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

Electrical chassis means conductive parts of the vehicle whose electrical potential is taken as reference and which are: 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. The electrical isolation of a high voltage sourcedetermined in accordance with the procedure specified in S7.

S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. This includes parts under a cover, if the cover can be removed without using tools.

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 fmves 2. 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. Luggage compartment is the space in the vehicle for luggage accommodation, separated from the passenger compartment by the front or rear bulkhead and bounded by a roof, hood or trunk lidfloor, and side walls, as well as by electrical protection barriers provided for protecting the occupants from direct contact with high voltage live parts.

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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. This standard applies to passenger cars, and to multipurpose passenger vehiclestrucks and buses with a GVWR of 4, kg or less, that use electrical fmvsss components with working voltages more than 60 volts direct current VDC or 30 volts alternating current VAC fjvss, and whose speed attainable over a distance of 1.

This includes, but is not limited to, a high voltage battery or battery pack, rechargeable energy storage device, and capacitor module. For a service disconnect which can be opened, disassembled, or removed without tools, protection degree Fmvzs shall be provided when tested under procedures specified in S9.

In addition, the voltage 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.

During the measurement, the rechargeable electric energy storage system may be disconnected. Possible active driving mode is the vehicle mode when application of pressure to the accelerator pedal or activation of an equivalent control or release of the brake system 3305 the electric power train to move the vehicle.

When leaving fmbss vehicle, the driver shall be informed by an audible or visual signal if the vehicle is still in the possible active 30 mode. The electric energy storage device shall be at the state-of-charge specified in either subparagraph abor c:.

This requirement does not gmvss 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.

In a test conducted under S6. Charge connector is a conductive device that, by insertion into a vehicle charge inlet, establishes an electrical connection of the vehicle to the external electric power supply for the purpose of transferring energy and exchanging information.

Calculate the electrical isolation resistance Ri according to the formula shown. Voltages V1 and V2 are measured between the 30 and the electrical chassis. The fmfss must monitor its own readiness and the warning display must be visible to the driver seated in the driver ‘s designated seating position.

Working Voltage means the highest root mean 350 voltage of the voltage source, which may occur across its terminals or between its terminals and any conductive parts in open circuit mfvss or under normal operating conditions. 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.

Live part is a conductive part of the vehicle that is electrically energized under normal vehicle operation. External electric 30 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.

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Service disconnect is the device for deactivation of an electrical circuit when conducting checks and services of the vehicle electrical propulsion system. When the vehicle is tested according to S6, the requirements of S5. For motor vehicles with an electric energy storage device that can be charged through a conductive connection with a grounded external electric power supplya device to enable conductive connection of the electrical chassis to the earth ground shall be provided.

gmvss Direct contact protection for a vehicle charge inlet shall be fmvxs by meeting the requirements specified in S5. In addition to the conditions of S7. 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.

Indirect contact is the contact of persons with exposed conductive parts. Each dummy is restrained only by means that are installed in the vehicle for protection at its seating position.

This includes, but is not limited to, high voltage batteries or battery packs, fuel cell stacks, rechargeable energy storage systems, capacitor modules, inverters, interconnects, and venting systems. Markings are not required for electrical connectors or the vehicle charge inlet.

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.

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

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. 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.

Each vehicle to which this standard applies, must meet the requirements in S5. More limitations on accuracy are described at the GPO site. 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. Connector means a device providing mechanical connection and disconnection of high voltage electrical conductors to a suitable mating component, including its housing.

The resistance between two exposed conductive parts of electrical protection barriers that are less than 2.

VAC means volts of alternating current AC expressed using the root mean square value. Not more than 5. For a high voltage source that has an automatic disconnect that is physically contained within itself, the electrical isolation 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.