Ordinances and other measures passed by Council shall, unless a later date be specified therein, take effect as follows: (1) Ordinances and measures to which referendum is not applicable, immediately upon passage; (2) Emergency ordinances and measures, except public utility franchise or public utility rate ordinances, to which Council has by a vote of at least five members added a section declaring that such ordinance or measure is necessary for the preservation from immediate danger of the public peace, property, health, safety or welfare, or is necessary for the daily operation of a department or office of the Village and also stating specifically the reason for such necessity, immediately upon passage; and (3) All other ordinances or measures, on the 31st day after passage, unless a referendum petition in respect thereof has been filed within 30 days after passage by Council. All ordinances of the Village, not inconsistent with this Charter and in force when it takes effect, shall continue in force until amended or repealed by Council.