Palaceside Building has deployed uninterruptible power supplies (emergency batteries) at the first-floor west Disaster Prevention Center and elsewhere, against a major earthquake or other emergency.
A computer (photo above) and radios (photos at right and below) are each connected to a UPS (red outline) so that, if power fails, they can keep running on the battery. A One-Seg tuner was also fitted to the computer so news can still be watched if television power drops.
Likewise, at the Mainichi Building office on the fifth floor, a wireless LAN router, an LCD television and the radio base unit were tied to a UPS.
“What did you do until now?” someone might ask. Palaceside Building is firmly equipped with emergency generators,
so a blackout is basically covered. Two diesel units and one gas-turbine unit—three in all—can supply about 60 percent of normal load. If Tokyo Electric Power supply stops in an earthquake, the generators start within 40 seconds, and power to the whole building is aimed within 10 minutes. Generators need cooling water; even if Tokyo Metropolitan water stops, groundwater can keep them running for about two days. (We ask tenants to help by reducing the number of elevators in service and limiting individual air conditioners.)
The new UPS will bridge for up to about 30 minutes until the generators are running.
We will keep making every preparation we can toward a safer building.