What is the difference between high-type and low-type in transformer room design?
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Why is there a distinction between high-type and low-type designs for transformer rooms (high-type means having two floors, with the transformer usually located on the floor at elevation 1.000), and why are some floors paved with cobblestones while others are not?
Placing it at a higher height is a safety measure to prevent people from getting an electric shock by touching the cable. Paving with cobblestones is used to prevent chaotic flow in the event of oil leakage from the transformer; sometimes, an oil leakage pool is built