BS/EN 50604-1-2016 pdf download.Secondary lithium batteries for light EV (electric vehicle) applications
Part 1: General safety requirements and test methods.
5.104.2 Evaluation option 2:
All protective circuits operating.
Protective devices which are considered to be reliable according to the functional safety standard of the IEC 61508 series or EN ISO 13849 (all parts) (Performance Level C).
NOTE Single fault tests are conducted for components and assembly.
5.105 Voltage classes
Battery packs/systems according to EN 50604 can be rated for voltage class A or voltage class B up to a maximum voltage of 200 V DC. Battery packs/systems intended to be used in conjunction with products or systems described in the IECITS 61851.3 series shall fulfil the requirements according to the Draft IECITS 61851-3-1:2016 (under consideration), 6.3.
5.106 Battery management system
Battery systems intended to be used in conjunction with products or systems described in the IEC/TS 61851-3 series shall provide a BMS according to the Draft IECITS 61851-3-4. A BMS represents the local EMS according to the Draft IECITS 61851-3-4 that protects the battery system, source or sink from damage, monitoring and increasing the lifetime of the battery system, source or sink, maintaining the battery system, and source or sink in a functional state.
5.107 Charging/discharging
The terms charging or discharging are used according to the IEC/TS 61 851-3 series very carefully, only if the situation is absolutely related to this issue the terms are used, In a more general way only the term power transfer is used because the direction and purpose of the power transfer is not known and not relevant for the requirement or considerations.
5.108 Test result explosion
Rupturing occurred where solid parts of the OUT have penetrated a wire mesh screen (annealed aluminium wire with a diameter of 0,25 mm and a grid density of 6 to 7 wires per cm) placed 25 cm away from the DUT.
NOTE In other publications the term explosion is used in the same meaning.
(SOURCE: Batso 1J
5.109 Test result fire
Cheesecloth shall be placed in 100 mm distance above the DUT. After the test, this cheesecloth shall
remain intact.
NOTE Cheesecloth: bleached cotton cloth of approximately 40 gIm2 (derived from IEC 62368-1:2010).
6 Mechanical tests
Replacement:
6.101 VIbration
6.101.1 Purpose
The purpose of this test is to verify the safety performance of the DUTs under a mechanical load due to vibration which the DUT will likely experience during the normal operation of the vehicle.
6.101.2 Test procedure
Adjust the Soc to 100 % before starting the vibration test.
While vibrated, each fully charged DUT shall be discharged according to the suppliers recommended minimum discharge voltage at the supplier’s recommended maximum continuous discharge current.
The given test parameters are valid for DUT designed for mounting on sprung masses of a vehicle. The OUT shall be mounted on a shaker test bench according to the designed vehicle mounting position and according to the requirements given in EN 60068-2-47.
The vibration test shall be a sinusoidal waveform with a logarithmic sweep between 7Hz and 200 Hz and back to 7 Hz traversed in 15 mm. This cycle shall be repeated 12 times for a total of 3 h for each of three mutually perpendicular mounting positions of the OUT. One of the directions of vibration shall be perpendicular to the terminal face.
The logarithmic frequency sweep for DUT with a gross mass of not more than 12 kg is as follows from
7Hz a peak acceleration of 1 gn is maintained until 18Hz is reached. The amplitude is then maintained
at 0,8 mm (1,6 mm total excursion) and the frequency increased until a peak acceleration of 8gn occurs
(approximately 50 Hz). A peak acceleration of 8 gn is then maintained until the frequency is increased to
200 Hz.
The logarithmic frequency sweep for OUT with a gross mass of more than 12 kg, is as follows: from
7 Hz to a peak acceleration of 1 gn is maintained until 18 Hz is reached. The amplitude is then
maintained at 0,8 mm (1.6 mm total excursion) and the frequency increased until a peak acceleration of
2 gn occurs (approximately 25 Hz). A peak acceleration of 2 gn is then maintained until the frequency is
increased to 200 Hz.
After vibration testing, the DUT capacity shall be evaluated by performing two standard cycles according to ISO 12405-1:2011, 6.2, or ISO 12405-2.
6.101.3 Requirements
During the test and for a 1 h post-test observation period, the DUT shall exhibit no evidence of leakage or battery enclosure rupture, fire, or explosion, and voltage class B DUT shall maintain an isolation resistance of at least 100 Ω/V.BS/EN 50604-1-2016 pdf download.