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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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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. Vehicle charge inlet is the device on the electric fmves into which the charge connector is inserted for the purpose of transferring energy and exchanging information from an external electric power supply.

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

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

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.

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. 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. It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly.

Where a range is specified, the vehicle must be capable of meeting the requirements at all points within the range. 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. Cornell Law School Search Cornell. 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.

This includes, but is not limited to, a high voltage battery or battery pack, rechargeable energy storage device, and capacitor module. During the measurement, the rechargeable electric energy storage system may be disconnected.

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 with working voltages more than 60 volts direct current VDC or 30 volts alternating current VACand whose speed attainable over a distance of 1. This includes, but is not limited to, a high voltage battery or battery pack, fuel cell stack, rechargeable energy storage device, and capacitor module.

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This includes parts under a cover, if the cover can be removed without using tools. After each test specified in S6 of this standard, each high voltage source in a vehicle must meet one of the following requirements: 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.

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.

Before any vehicle impact test, Vb fmvs equal to or greater than the nominal operating voltage as specified by the fmvsss manufacturer. Markings are not required for electrical connectors or the vehicle charge inlet. Direct contact protection for a connector shall be provided by meeting the requirements specified in S5.

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

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

Voltage Dmvss is measured across the two terminals of the voltage source. VAC means volts of alternating current AC expressed using the root mean square value. The symbol shall be yellow and the bordering and the arrow shall be black.

This device shall enable connection to the earth ground before exterior voltage is applied to the vehicle and retain the connection until after the exterior voltage fmvas removed from the vehicle. 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.

Possible active driving mode fmvsss the vehicle mode when application of pressure to the accelerator pedal or activation of an equivalent control or release of the brake system causes fmsvs electric power train to move the vehicle. For a high voltage source that has an automatic disconnect fmvsd 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.

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. More limitations on accuracy are described at the GPO site. 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.

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Fmvse methods specified in S9.

The system must monitor its own readiness and the warning display must fkvss visible to the driver seated in the driver ‘s designated seating position. Luggage compartment is 3055 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.

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. The electric energy storage device shall be at the state-of-charge specified in either subparagraph abor c:. For the purpose of determining the voltage level of the high fmvws source specified in S5.

S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. Service disconnect is the device for deactivation of an electrical circuit when conducting checks and services of the vehicle electrical propulsion system.

Indirect contact is the contact of persons with exposed conductive parts. 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.

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. The electrical isolation of a high voltage sourcedetermined in accordance with the procedure specified in S7. Test procedure for on-board electrical isolation monitoring system. Each vehicle to which this standard applies, must meet the requirements in S5.

The symbol shown in Figure 6 shall be present on or near electric fmcss storage devices. Electrical isolation of a high voltage source in the vehicle means the electrical resistance between the fmvsw voltage source and any of the vehicle’s electrical chassis divided by the working voltage of the high fmvse source. 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.