In supplying electric power to large office blocks and flats, the supply authority would naturally prefer to install the distribution transformer in the building itself, so as to reduce the length of low-voltage cable runs, which would result in lower costs and fewer problems with voltage regulation. The consequence of fire in multi-storey buildings becomes more and more serious as the population density of the building increases. The installation of an oil-filled transformer in the building is held to increase the fire risk.
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- 1.The British National Coal Board, NCB 297, Dry-type Flame proof Transformers 150–300 kVA (1962)Google Scholar