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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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.
Voltages V1 and V2 are measured between the source and the electrical chassis. United States Code U. Each vehicle to which this standard applies, must meet the requirements in S5.
This includes, but is not limited to, a high voltage battery or battery pack, rechargeable fmss storage device, and capacitor module. Markings are not required for electrical connectors or the vehicle charge inlet. Live part is a conductive part of the vehicle that is electrically energized under normal vehicle operation.
FMVSS Electrolyte spillage and electrical shock protection for electric-powered vehicles
Test procedure for on-board electrical isolation monitoring system. 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.
Each dummy is restrained only by means that are installed in the vehicle for protection at its seating position. Connector means a device providing mechanical connection and disconnection of high voltage electrical conductors to a suitable mating component, including its housing. 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.
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. During the measurement, the rechargeable electric energy storage system may be disconnected.
At the option of the manufacturer, protection against indirect contact with high voltage sources shall be determined using the test method fmvds subparagraph a or subparagraph b. 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.
The vehicle must meet the requirements of S5. Where a range is specified, the vehicle must be capable of meeting the requirements at all points within the range. 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.
Possible active driving mode is the vehicle mode when application fjvss pressure to the accelerator pedal or activation fmvvss an equivalent control or release of the brake system causes the electric power train to move the vehicle. 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.
Before any vehicle impact test, Vb is equal to or greater than the nominal operating fmvss as specified by the vehicle manufacturer. 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. Service disconnect is the device for deactivation of an electrical circuit when conducting checks and services of the vehicle electrical propulsion system.
After each test specified in S6 of this standard, each high voltage source in a vehicle must meet one of the following requirements: When the vehicle is tested according to S6, the requirements of Fmvs. This standard applies to passenger cars, and to multipurpose passenger vehiclestrucks and fmvsw with a Fmvsx of 4, kg or less, that use electrical propulsion components with working voltages more 3055 60 volts direct current VDC or 30 volts alternating current VACand whose speed attainable over a distance of 1.
FMVSS 305: Electrolyte spillage and electrical shock protection for electric-powered vehicles
S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. The electric energy storage device shall be at the state-of-charge specified in either subparagraph abor c:.
Not more than 5. 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. The resistance tester is connected to the measuring points the electrical chassis and any exposed conductive part of electrical protection barriers or any two simultaneously reachable exposed conductive parts of electrical protection barriers that are less than 2.
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.
This includes parts under a cover, if the cover can be removed without using tools. 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.
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.
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.
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.
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.
Cornell Law School Search Cornell. External fmvse 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. Vehicle charge inlet is the device on the electric vehicle into which the mfvss connector is inserted for the purpose of transferring energy and exchanging information from an external electric power supply.
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. If the probe partly or fully penetrates into the electrical protection barrier, it is placed in every possible position to evaluate fnvss with high voltage live parts.
When leaving the vehicle, the driver shall be informed by an audible or visual signal if the vehicle is still in the possible active driving mode. For the purpose of determining the voltage level of the high voltage source specified in S5. It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. The methods specified in S9. 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 35 disconnect and from the side of the automatic disconnect connected to fmsvs 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.
Propulsion system means an assembly of electric or electro-mechanical components or fvss that propel the vehicle using the energy that is supplied by a high voltage source. DC high voltage sources of vehicles with a fuel cell system shall fmvsw monitored by an electrical isolation monitoring system that displays a warning for loss of isolation when tested according to S8.
For a high voltage source that has an fmvvss 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.
The symbol shall be yellow and the bordering and the arrow shall be black. VAC means volts of alternating current AC expressed using the root mean square value.