[OPLINTECH] Planned power outage procedure

[Chad Neeper]

Forwarded with Dan's permission:

-------- Original Message --------
Subject: 	RE: [OPLINTECH] Planned power outage procedure
Date: 	Thu, 15 Apr 2010 11:53:09 -0400
From: 	Dan Will <willda at oplin.org>
To: 	'Chad Neeper' <cneeper at level9networks.com>
References: 	<4BC72124.7060205 at cuyahogafallslibrary.org> 
<4BC725A8.9040700 at level9networks.com>



Well, I not a retired electrician but, I worked quite a few summers with my dad who was a 50 yr. union electrician. We installed many upgrade services (from a 60 amp fuse box to 100 or 200 amp breaker boxes). He never told any of our customers, "You need to unplug .......before we turn your power back on." We did leave breakers for big draw items like air conditioners/furnaces, tripped especially if there were several units. This was more to keep the initial draw down, which might be a good idea at a library,( we have a demand meter on ours and all that juice at once, spikes a demand meter, which the electric co. loves....more money for them). As far as 110/120 volt items and any possible surges go, I wouldn't worry about it. Standard surge suppressors can handle any surges (unless you don't trust your electricians, in which case they shouldn't be working for you.)

Dan Will
Technology Supervisor
Meigs County District Public Library
willda at oplin.org
740.992.5813
740.992.6140 (fax)


The difference between fiction and reality?
Fiction has to make sense.
Tom Clancy




-----Original Message-----
From: oplintech-bounces at oplin.org [mailto:oplintech-bounces at oplin.org] On Behalf Of Chad Neeper
Sent: Thursday, April 15, 2010 10:42 AM
To: oplintech at oplin.org
Subject: Re: [OPLINTECH] Planned power outage procedure

If the device will auto-power on when commercial power returns (copiers, refrigerator, etc.), then I might consider unplugging it. If the device is plugged into a power strip, then I'd suggest simply turning off the power strip. Particularly expensive or critical devices (copiers, treasurer's workstation, director's workstation, your workstation, etc.) you might consider unplugging as a precaution. Weigh the rest against the staff time and inconvenience of unplugging and then troubleshooting when the devices don't get plugged back in correctly.

In general, however, I wouldn't expect too many problems. Your electrical service is probably sufficient to handle the sudden power requirements of the handful of devices that will suddenly come alive when the power returns. Also, when the power returns it will probably be more like flipping on a light switch, rather than the sometimes up-and-down that you see when the commercial power grid comes back online.

My 2 cents.

(Are there any retired electricians or electrical engineers out there that want to tell us if I'm on the right track here?)

Chad

-----------------------
Chad Neeper
Senior Systems Engineer

Level 9 Networks
740-548-8070 (voice)
866-214-6607 (fax)

--   Full LAN/WAN consulting services   --
-- Specialized in libraries and schools --



Phil Shirley wrote:
> Our library is undergoing a renovation, so we've had small planned 
> power outages on one or two circuits. When this has happened, in order 
> to be completely safe, we've powered down the affected computers and unplugged
>   them from the power on the wall. With good surge protectors this 
> doesn't seem necessary but it hasn't been a hardship.
>
> Some morning next week the power for the whole building is going to be 
> out. We'll shut down the computers, but should we unplug them all from 
> the wall?
>
> Phil
>   




-- 

-----------------------
Chad Neeper
Senior Systems Engineer

Level 9 Networks
740-548-8070 (voice)
866-214-6607 (fax)

--   Full LAN/WAN consulting services   --
-- Specialized in libraries and schools --

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.oplin.org/pipermail/oplintech/attachments/20100415/0deaf1b8/attachment.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/x-pkcs7-signature
Size: 3286 bytes
Desc: S/MIME Cryptographic Signature
Url : http://mail.oplin.org/pipermail/oplintech/attachments/20100415/0deaf1b8/smime.bin