To ensure maximum performance of the battery cells powering the electric motor driving the G7e torpedo (that is achiving speed of 30 knots at distance 5000 m for T-II and T-III torpedo and running distance of 7500 m for T-IIIa torpedo), shortly before the launch the cells were heated up to a temperature 30 Â°C.
A quarantine is used to separate and restrict the movement of persons; it is a 'state of enforced isolation'. This is often used in connection to disease and illness, such as those who may possibly have been exposed to a communicable disease.
contagious disease (also called a communicable disease) is an infectious disease that is capable of being transmitted from one person or species to another. Apparently they are the same. Not true. Contagious diseases are most often communicable enough to warrant quarantine, whereas communicable diseases (such as the flu) are not.