Plumbing, Electricity, Acoustics

Plumbing, Electricity, Acoustics

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As with automobiles, the lower the weight of an elevator car, the less energy is needed. ... One of the ways that elevators achieve a safety factor between 7 and 12 is to use 4 to 8 separate cables each of ... if a mechanical room is required for hydraulic elevators, if a penthouse machine room is required for traction elevators, anbsp;...

Title:Plumbing, Electricity, Acoustics
Author:Norbert M. Lechner
Publisher:John Wiley & Sons - 2011-11-01


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