必须仔细选择电动盘车系统部件，包括蓄电池、电缆和盘车电机，以在系统预期的最恶劣气候条件下提供起动发动机所需的速度。发动机起动负荷随着冷温度的增加而增加，因此，这些部件的初始选择需要考虑低温发动机扭矩要求。为了确保获得足够的电动盘车系统，重要的是使用适当的测试程序来获得发动机的盘车负载要求。

The electrical cranking system components, which include the battery, cables, and cranking motor, must be carefully selected to provide the necessary speed to start an engine under the most severe climatic conditions for which the system is intended. Engine cranking loads increase with cold temperatures, therefore, the initial selection of these components needs to consider low temperature engine torque requirements. To insure an adequate electrical cranking system is obtained, it is important that proper test procedures are used for obtaining the cranking load requirements of the engine.