Mailing List Archive

Something that no shop should be without is a decent clamp-on ammeter.

I have a Fluke 337, but you should look at the entire line to see
what's right for you. Available from places like Graybar and Grainger...

line card:
http://www.fluke.com/Download/ElectricalPower/1629613_.pdf

Bear in mind in using it that you can't just clamp it around a power
supply cable and expect it to do the right thing -- you should clamp
it around the hot conductor only (this will typically require making a
special extension cable).

Once you know how many amps you're drawing (and have double-checked to
make sure that the switching power supply in the 6509 is
powerfactor-corrected), you can get a general idea of how long a
typical UPS will last. The 16 amp rating is a maximum, as you already
know...

---Rob


"Kerpal.Abdar"<kerpal.abdar@earthlink.net> writes:

> Hi all. Sorry for the post but perhaps someone
> can help me out. We have a
> 6509 with what I believe is a 1800 watt p/s, 16
> amp but we only have half of
> the slots filled. My question is.......When
> figuring the calculation to size
> an APC UPS, can I assume my power requirement
> for the 6509 is about half the
> stated rating (since I am only using about half
> the slots)?
> Is the 1800 watt, 16 amp the maximum at full
> load?
>
>
> Kerpal
>
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/

Try this link.
http://cisco.com/univercd/cc/td/doc/product/lan/cat6000/6000hw/inst_aug/02pr
ep.htm#35842
Keep in mind also that "kVA" and "kW" are not always the same thing..

-gh


----- Original Message -----
From: "Kerpal.Abdar" <kerpal.abdar@earthlink.net>
To: <cisco-nsp@puck.nether.net>
Sent: Tuesday, September 24, 2002 9:30 AM
Subject: [nsp] Question on UPS Power requirements


> Hi all. Sorry for the post but perhaps someone
> can help me out. We have a
> 6509 with what I believe is a 1800 watt p/s, 16
> amp but we only have half of
> the slots filled. My question is.......When
> figuring the calculation to size
> an APC UPS, can I assume my power requirement
> for the 6509 is about half the
> stated rating (since I am only using about half
> the slots)?
> Is the 1800 watt, 16 amp the maximum at full
> load?
>
>
> Kerpal
>
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/

Example:


http://gallery.nac.net/gallery/view_photo.php?set_albumName=album65&id=MVC_002F

(sorry, fuzzy).

I'll take some more detailed pics if folks are curious.




On 24 Sep 2002, Robert E. Seastrom wrote:

>
> Something that no shop should be without is a decent clamp-on ammeter.
>
> I have a Fluke 337, but you should look at the entire line to see
> what's right for you. Available from places like Graybar and Grainger...
>
> line card:
> http://www.fluke.com/Download/ElectricalPower/1629613_.pdf
>
> Bear in mind in using it that you can't just clamp it around a power
> supply cable and expect it to do the right thing -- you should clamp
> it around the hot conductor only (this will typically require making a
> special extension cable).
>
> Once you know how many amps you're drawing (and have double-checked to
> make sure that the switching power supply in the 6509 is
> powerfactor-corrected), you can get a general idea of how long a
> typical UPS will last. The 16 amp rating is a maximum, as you already
> know...
>
> ---Rob
>
>
> "Kerpal.Abdar"<kerpal.abdar@earthlink.net> writes:
>
> > Hi all. Sorry for the post but perhaps someone
> > can help me out. We have a
> > 6509 with what I believe is a 1800 watt p/s, 16
> > amp but we only have half of
> > the slots filled. My question is.......When
> > figuring the calculation to size
> > an APC UPS, can I assume my power requirement
> > for the 6509 is about half the
> > stated rating (since I am only using about half
> > the slots)?
> > Is the 1800 watt, 16 amp the maximum at full
> > load?
> >
> >
> > Kerpal
> >
> > _______________________________________________
> > cisco-nsp mailing list real_name)s@puck.nether.net
> > http://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> _______________________________________________
> cisco-nsp mailing list real_name)s@puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>

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