Fresh leaf tea contains more tannins than processed teas, according to Victor R. Preedy, author of Tea in Health and Disease Prevention.. The color of tea influences tannins, too. White tea, for example, has fewer tannins than black tea, according to the Pacific College of Oriental Medicine.annins 101. Tannins are polyphenols, compounds present in plant foods, that are responsible for the colors of many flowers and the astringent flavor of foods such as unripe fruit and tart red wine, according to Cornell University. Tannins also help proteins retain their molecular structure, Cornell University notes.
Emergency power system. An emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply. A standby power system may include a standby generator, batteries and other apparatus.
Section 10: Emergency and Standby Power Systems Bill Brown, P.E., Square D Engineering Services Introduction Emergency and standby power systems are designed to provide an alternate source of power if the normal source of power, most often the serving utility, should fail. As such, reliability of these types of systems is critical and good design practices are essential. Code and standards A.) Classification of emergency and standby power systems