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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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 fmves conductive parts of electrical protection barriers that are less than 2.
Each vehicle to which this standard applies, must meet the requirements in S5. Electric energy storage device means a high voltage source that stores energy for vehicle propulsion.
The system must monitor its own readiness and the warning display must be visible to the driver seated in the driver ‘s designated seating position. 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.
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. 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. 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.
Direct contact protection for a vehicle charge inlet shall be provided by meeting the requirements specified in S5. S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. It is fmvsd guaranteed to be accurate or up-to-date, though we do refresh the database weekly. Working Voltage means the highest root mean square fmvzs 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.
FMVSS Electrolyte spillage and electrical shock protection for electric-powered vehicles
A high voltage source that is conductively connected to an electric component which is conductively connected to the electrical chassis and has a working voltage less than or equal to 60 VDCis not required to meet the electrical isolation requirements in S5. 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.
Propulsion system means an assembly of electric or electro-mechanical components or circuits that fmvsw the vehicle using the energy that is supplied by a high voltage source. Direct contact protection for a connector shall be provided by meeting the requirements specified in S5. 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.
United States Code U. If the probe partly fmsvs 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, and capacitor module.
All 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. Markings are not required for electrical connectors or the vehicle 3305 inlet. In addition to the conditions of S7. For a high voltage source that has an automatic disconnect that is physically contained within itself, the electrical isolation measurement after the test fmvsw made from the side of the automatic disconnect connected to the fkvss power train or to the rest of the electric power train if the high voltage source is a component contained in the power train.
After each test specified in S6 of this standard, each high voltage source in a vehicle must meet one of the following requirements: Connector means a device fmvas mechanical connection and disconnection of high voltage electrical conductors to a suitable mating component, including its housing. Each dummy is restrained only by means that are installed in the vehicle for protection at its fmvse position. Electrical chassis means conductive parts of the vehicle whose electrical potential is taken as reference and which are: Indirect contact is the contact of persons with exposed conductive parts.
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. Voltages V1 and V2 are measured between the source and the electrical chassis. This standard applies to passenger cars, and to multipurpose f,vss vehiclestrucks and buses with a GVWR of 4, kg or less, that use 3305 propulsion components with working voltages more fmvws 60 volts direct current VDC or 30 volts alternating current VACand whose speed attainable over a distance of 1.
During the measurement, the rechargeable electric energy storage system may be disconnected.
FMVSS 305: Electrolyte spillage and electrical shock protection for electric-powered vehicles
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. This includes parts under a cover, if the cover can be removed without using tools.
High voltage source means any electric component which is 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. For the purpose of determining the voltage level of the high voltage source specified in S5.
In addition, the voltage between an exposed conductive part of the electrical protection barrier of the high voltage source and fmfss other simultaneously reachable exposed conductive parts of electrical protection fmvsa within 2. For a high voltage source that has an automatic disconnect that is physically contained fvss 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.
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 fmvs source is a component contained in the power train.
The vehicle must meet the requirements of S5.
Gmvss part is a conductive part of the vehicle that is electrically energized under normal vehicle operation. Calculate the electrical isolation resistance Ri according to the formula shown. The symbol in Figure 6 shall 3005 be visible on electrical protection barriers which, when removed, expose live parts of high voltage sources. The electrical isolation of a high voltage sourcedetermined in accordance with the procedure specified in S7. 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.
Not more than 5.
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. 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 causes the electric power train to move the vehicle.
The symbol shown in Figure 6 shall be present on or near electric energy storage devices.
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. 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.