Earth, wind, fire, and water
This week’s corner-cutting scandal involves elevators:
Leading elevator manufacturer Fujitec Co. used substandard steel in more than 12,000 elevators, 560 of which could fall short of mandatory strength standards, the infrastructure ministry says.
…
Some Fujitec elevators have only 66 percent of the legally required strength.
When operating under normal conditions, such elevators pose no problem, the ministry said. That is because the Building Standards Law requires elevators to be built to withstand up to three times the load they carry.
But problems could arise if an elevator were to stop between floors in the event of an earthquake with an intensity of upper 6 or stronger on the Japanese scale of 7. Ministry officials said railings that support the cage could become distorted in such instances, making it impossible for the elevator to restart itself.
That, in turn, could cause problems for workers rescuing passengers and trying to restore the elevator’s functions.
One heartening thing, of course, is that the problem has now been discovered, and there’s an excellent probability that reinforcement can be done before the next major earthquake turns potential problems into real disasters. The Nikkei story and others I’ve seen have made it sound as if the Ministry of Land, Transport, and Infrastructure called for fixes and further investigations after being apprised of the problem by Fujitec itself. (The investigation may have been one required by federal safety regulations–I’m not exactly an elevator expert, and the news reports have generally focused on the nature of the problem itself.)
Of course, sometimes lessons do end up having to be learned through tragedy. Spas and hot spring resorts have been in the spotlight since the methane explosion at a day spa in Shibuya that killed three employees:
According to the survey, 479 onsen facilities, such as ryokan inns and public baths, draw hot-spring water using an indoor system. Only 22, or 5 percent, have gas detectors.
The survey showed that 156 facilities, or 33 percent, had checked whether natural gas was present in hot-spring water, and 57 ascertained that it was.
But 323 facilities, or 67 percent, had never bothered to check.
Even if natural gas is present, there is no danger of an explosion if the facility is properly ventilated. But only 219 facilities, or 46 percent, were found to have ventilation systems.
As many as 108 facilities, or 23 percent, are operating in airtight conditions without even natural ventilation.
I wonder how many of the managers of those facilities were warned, as those at Shiespa were, that ventilation and detection systems were inadequate and haven’t done anything about it.