Elevator on generator

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ATSman said:
The kind of buildings we work in are major hospitals, high rises, data centers, telcos., etc. I suggest you stick with your residential/ commercial customers and stuff you are knowledgeable about unless you are willing to educate yourself and grow. This is the big boy's arena and all of what we do are based on sound principles backed up by 51 years of field experiences, industry standards and all of the electrical institutions: IEEE, NEMA, NEC etc,, etc.
Sorry but this comment really ticked me off ................along with the extra glass of red vino! lol
don't forget your daily amount of anti-oxidants (Resveratrol) and other Meditrenian foods to fight the Covid!
Pls feel free to comment as I always love a challenge.
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We? Do you have a mouse in your pocket?

Who gives a crap what kind of buildings you work in? Nobody

But it should be obvious that he's not talking about a hospital, otherwise the generator would already be there.

Besides, he mentioned that it was a three-story building and he's looking at 500 amps on a generator. Three story high rise? Give me a break.

Maybe you don't know as much as you think you know. I thought you might have something constructive to the conversation. Instead, you just decided to sh*t all over yourself.

I know this much.
I wire for elevator about a half-dozen times every year. And the people who use the elevators I wire couldn't care less what kind of buildings you work in. All they know is that if the power goes out they don't want to be stranded on the top floor.

And I know it would suck to be a business owner on the top floor, and have all of my clientele strolling in using wheelchairs, then have the power go out and make my business completely defunct because nobody put the elevator on the generator how far is it go
 
ATSman said:
The kind of buildings we work in are major hospitals, high rises, data centers, telcos., etc. I suggest you stick with your residential/ commercial customers and stuff you are knowledgeable about unless you are willing to educate yourself and grow. This is the big boy's arena and all of what we do are based on sound principles backed up by 51 years of field experiences, industry standards and all of the electrical institutions: IEEE, NEMA, NEC etc,, etc.
Sorry but this comment really ticked me off ................along with the extra glass of red vino! lol
don't forget your daily amount of anti-oxidants (Resveratrol) and other Meditrenian foods to fight the Covid!
Pls feel free to comment as I always love a challenge.
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All he said was it would suck to leave someone in a wheel chair stranded on a floor, which is mostly true if that was what the design did. Kind of buildings you mentioned sound like they probably required to be designed to not do that though. Some low rise buildings maybe not required? Maybe not required as long as there is other emergency egress means for those with wheelchair or other mobility issues?
 
petersonra said:
Do you really want someone using an elevator during a fire?
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A power outage does not necessarily mean a fire; in fact, I would wager that most power outages in a given building are not due to fire. Most (all?) elevators have placards on every floor that say not to try to use them in case of fire.
 
Some how this discussion got convoluted and sidetracked. This has nothing to do with a BUILDING FIRE (in which case elevator operation is designed to cease, after the proper sequence of events.) We are talking about what happens in a POWER FAILURE and the sequence of events that should occur to properly bring the cars in control and safely allow the passengers to vacate the cars. PLEASE READ THE ATTACHED FILE from a major elevator manufacturer that explains the proper sequence of operation DURING A POWER FAILURE and the steps involved when backup power is applied to the elevators. Thank you.
 

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  • Elevator Presignal Theory_TKE.pdf
    350.6 KB · Views: 15
electrofelon said:
Stupid question here, but what happens if the power goes out while someone is in the elevator? How often are elevators provided with backup power? I have a three story building that I am providing with some optional standby power, and it just occurred to me that perhaps I should consider putting the elevator on it. We have lost power three times in as many weeks for about 5 hours due to a chronic problem with an underground POCO feeder. Disadvantage is of course the elevator chews through a decent chunk of the generator capacity, and starting could be an issue if the generator is already loaded up. I metered a max of about 80 amps 208 three phase for the elevator, out of 550A of standby capacity.
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electrofelon,
I found the attached in archives
 

Attachments

  • Elevators What Happens in a Power Failure (1).pdf
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James L said:
We? Do you have a mouse in your pocket?

Who gives a crap what kind of buildings you work in? Nobody

But it should be obvious that he's not talking about a hospital, otherwise the generator would already be there.

Besides, he mentioned that it was a three-story building and he's looking at 500 amps on a generator. Three story high rise? Give me a break.

Maybe you don't know as much as you think you know. I thought you might have something constructive to the conversation. Instead, you just decided to sh*t all over yourself.

I know this much.
I wire for elevator about a half-dozen times every year. And the people who use the elevators I wire couldn't care less what kind of buildings you work in. All they know is that if the power goes out they don't want to be stranded on the top floor.

And I know it would suck to be a business owner on the top floor, and have all of my clientele strolling in using wheelchairs, then have the power go out and make my business completely defunct because nobody put the elevator on the generator how far is it go
Click to expand...
James
To quote a famous proverb by Abraham Lincoln as stated in the Golden Book, Nov. 1931:
"It is better to remain silent and be thought a fool than to speak and to remove all doubt"
 
I like to include battery lowering on all elevators, even those fed from a generator. Yes, it is a bit belt and suspenders, but it isn't that big of an add to the cost of the elevator and I really don't want to strand people between floors if I can avoid it. The only downside to this approach is that the controls get a little more complicated to lock the elevator out for service in the pit.
 
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