56.250 英寸標稱寬度，最小 208.0 伏和 480.0 伏最大交流電壓額定值，最小 50.0 赫茲和 60.0 赫茲最大額定頻率，工作電源關係，帶外殼功能的單件產品，電源;設計的頻率測試類型

A_set_（bank）_of_electrical_elements_that_are_passive_（電阻，_inductive，_capacitive）_or_active_（電機，_batteries）._they_are_usually_located_adjacent_to_each_other_to_form_a_consolidated_set_of_any_of_these_elements_or_any_combination_of_them._a_load_bank_is_used_to_replace_distributed_or_dispersed_load_elements_contained_in_a_power_distribution_system_or_electrical_network_for_the_purpose_of_providing_a_concentrated_load._a_load_bank_contains_all_the_essential_electrical_characteristics_necessary_to_terminate_the_circuit_and_functions_in_the_same_manner_as_the_load_which_it_is_intended_to_replace._this_description_necessarily_includes_a_bank_of_light_bulbs_or_cone_heating_elements_where_energy_conversion_is_primarily_in_form_of_heat_although_visible_radiant_energy_is_the_natural_result_of_incandescent_heating._load_banks_are_intended_to_cover_a_specific_range_of_characteristics_and_normally_operate_at_dc_or_at_power_frequencies_50，_60，_or_400_hz_ac._load_banks_may_be_uninstrumented_or_complete_with_integral_instrumention_and_may_also_be_furnished 作為滑橇或拖車安裝。不包括：測試集、電氣（修改後）。 另請參見虛擬負載、電氣。