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.
The word quarantine originates from the Venetian dialect form of the Italian quaranta giorni, meaning 'forty days'. This is due to the 40 day isolation of ships and people before entering the city of Dubrovnik in Croatia. This was practiced as a measure of disease prevention related to the Black Death.