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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This includes, but is not limited to, a high voltage battery or battery pack, fuel cell stack, rechargeable energy storage device, and capacitor module. For a high voltage source that has an automatic disconnect that is not physically contained within itself, the voltage 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.

Before any vehicle impact test, Vb is equal to or greater than the nominal operating voltage as specified by the dmvss manufacturer. Electric energy storage device means a high voltage source that stores energy for vehicle propulsion. Exposed conductive part is the conductive part that can be touched under the provisions of the IPXXB protection degree and that is not normally energized, but that can become electrically energized under isolation fault conditions.

More limitations on accuracy are described at the GPO site. 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. 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 fmsvs occupants from direct contact with high voltage live parts.

A high voltage source that is conductively connected to an fmvs component which is conductively connected to the electrical chassis fmsvs has a working voltage less than or equal to 60 VDCis not required to meet the electrical isolation requirements in S5.

The electrical isolation of a high voltage sourcedetermined in accordance with the procedure specified in S7.

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

During the measurement, the rechargeable electric energy storage system may be disconnected. Cornell Law School Search Cornell. 035 measurements for calculating voltage s and electrical isolation are made after a minimum of 5 seconds after the vehicle comes to rest in tests specified in S6.

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This includes, but is not limited to, a high voltage battery or battery pack, rechargeable energy storage device, and capacitor module. Electrical chassis means conductive parts of the vehicle whose electrical potential is taken as reference and which are: The symbol shall be yellow and the bordering and the arrow shall be black.

Vehicle charge inlet is the device on the electric vehicle into which the charge connector is inserted for the purpose of transferring energy and exchanging information from an external electric power supply. S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. 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.

Voltages V1 and V2 are measured between the source and the electrical chassis. 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. 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.

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 mfvss the rest of the electric power train if the high voltage source is a component contained in the power train. The symbol shown fmvsa Figure 6 shall be present on or near electric energy storage devices.

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

Markings are not required for electrical connectors or the vehicle charge cmvss. Voltage Vb is measured across the two terminals of the voltage source.

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.

Prior to any impact test, the requirements of S5. 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. The methods specified in S9. This includes parts under a cover, if the cover can be removed without using tools.

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Indirect contact is the contact of persons with exposed conductive parts. For the purpose of determining the voltage level of the high voltage source specified in S5. Cables for high voltage sources which are not located within electrical protection barriers shall be identified by having an fvmss covering with the color orange.

Electrical protection barrier is the part providing protection against direct contact with high voltage live parts from any direction of access. 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.

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. Each dummy is restrained only by means that are installed in the vehicle for protection at its seating position. 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.

Calculate the electrical isolation resistance Ri according to the formula shown. 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.

Direct contact protection for a vehicle charge inlet shall be provided by meeting the requirements specified in S5. 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.

After each test specified in S6 of this standard, each high voltage source in a vehicle must meet one of the following requirements: Test procedure for on-board electrical isolation monitoring system.

When the vehicle is tested according to S6, the requirements of S5. VAC means volts of alternating current AC expressed using the root mean square value. In addition to the conditions of S7.