The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 497
s exits and corridors. These auto-matically throw the current on to ail-other service in case of the failure ofone. From the transformers in the serviceroom all the current, except that usedfor emergency lighting, is transmitted bysixteen 500,000 cm. and live 300.000 cm.cables to the main… … lite .hrhitrcl and l-.n^^inccr 113 breakers for transmitting500-volt direct-current toelevators. 3-phase a.c,220-volt for motors and220-110-volt single-phasea.c. for lighting to thestage switchboards andvarious panels in thebuilding. These panels, exclusiveof the arena and stageswitcliboards.…
Architecture · Building
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