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EV.8.5.1 The AMS must measure the temperatures of critical points of the Accumulator
EV.8.5.3 Cell temperatures must be measured at the negative terminal of the respective cell EV.8.5.4 The temperature sensor used must be in direct contact with one of:
The negative terminal itself
The negative terminal busbar less than 10 mm away from the cell terminal EV.8.5.5 For lithium based cells,
a. The temperature of a minimum of 20% of the cells must be monitored by the AMS
b. The monitored cells must be equally distributed inside the Accumulator Container(s)
Every cell temperature should be monitored
EV.8.5.6 Multiple cells may be monitored with one temperature sensor, if EV.8.5 is met for all cells sensed by the sensor.
EV.8.5.7 Temperature sensors must have appropriate electrical isolation that meets one of:
Between the sensor and cell
In the sensing circuit
The isolation must consider both GLV/TS isolation as well as common mode voltages between sense locations.