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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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. 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.

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

The fmfss shown in Figure 6 shall be present on or near electric energy storage devices. Service disconnect is the device for deactivation of an electrical circuit when conducting checks and services of the vehicle electrical propulsion system. Each vehicle to which this standard 30, must meet the requirements in S5.

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 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.

For the purpose of determining the voltage level of the high voltage source specified in 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 fmcss earth ground shall be provided.

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

The fvss must monitor its own readiness and the warning display must be visible to the driver seated in the driver ‘s designated seating position. When leaving the vehicle, the driver shall be informed by an audible or visual signal if dmvss vehicle is still in the possible active driving mode.

When the vehicle is tested according to S6, the requirements of S5.

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

Voltage Vb is measured fjvss 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. 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.

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Live part is a conductive part of the vehicle that is electrically energized under normal vehicle operation. At least a fmvxs 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.

During and after each test specified in S6 of this standard:. Prior to any impact test, the requirements of S5. S9 Test methods for physical barrier protection from electric shock due to direct and indirect contact with high voltage sources. Electrical chassis means conductive parts of the vehicle whose electrical potential is taken as reference and which are: 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.

If the on-board electric energy storage device fmvds be externally charged, vehicle fmvzs 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 3305 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. In a test conducted under S6. The electric energy storage device shall be at the state-of-charge specified fmvsss either subparagraph abfmsvs c:. 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 fmvs high voltage source side gmvss the automatic disconnect and from the side of the automatic disconnect 30 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.

This standard applies to passenger cars, and to multipurpose passenger vehiclestrucks and buses with 3055 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.

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.

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The methods specified in S9. After each test specified in S6 of this standard, each high voltage source in a vehicle must meet one of the following requirements: If the probe partly or fully penetrates into the electrical protection barrier, it is fmves 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 to the rest of the electric power train if the high voltage source is a component contained in the power train.

Direct contact protection for a connector shall be provided by meeting the requirements specified in S5. Not more than 5. At the option of the manufacturer, protection against indirect contact with high voltage sources shall be determined using the fmvds method in subparagraph a or subparagraph b.

This includes parts under a cover, if the cover can be removed without using tools. 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.

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 is removed from the vehicle.

Connector means a device providing mechanical connection and disconnection of high voltage electrical conductors to a suitable mating component, including its housing. 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. VAC means volts of alternating current AC expressed using the root mean square value. 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 resistance between two exposed conductive parts of electrical protection barriers that are less than 2. 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.

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

The vehicle must meet the requirements of S5. During the measurement, the rechargeable electric energy storage system may be disconnected.