6 Operation and maintenance
6.1 DESIGN AND LAYOUT OF TRANSFORMER INSTALLATIONS
Outdoor substations
In planning a transformer layout there are a number of requirements to be considered.
All power transformers containing BS 148 or IEC 60296 oil are considered to represent a potential fire hazard and awareness of this must be a primary consideration when designing a transformer substation. They should be located in such a way that, should a transformer initiate a fire, this will be limited to the transformer itself and its immediate ancillary equipment and not involve any other unit or equipment, cabling or services associated with any other unit. This requirement is particularly important if two or more transformers are to be installed in the ...
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