In general,
Normal Bisque Firing for thin or slip casting works can go up to 100C per hour until 600C, after that put on full power 150C/h.
Bisque Firing for thick or sculpture works should not go more than 50C per hour until 600C, after that put on full power 150C/h (mush sure soak around 90C to allow moisture release.)
Glaze Firing if work already bisque, can go up to 125C until 600, after that put on full power. Unless a special glaze effect might need a hold in higher temperatures.