Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

[David M]

I have a 6kw 24Vdc generator :)



On 5/8/2018 2:58 PM, Gino A. Villarini wrote:
Looking for 48 vdc inverters for data room applications in the range 
of 6-8 kw


Can be a all in one system ( charger plus Inverter) , must be always 
online


*//*

*/Gino A. Villarini/*

President
Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968

Re: [AFMUG] Fixing fiberglass ladders

[Steve Jones]

Batavia is coming next week to inspect and quote the repairs. Resurfacing
is cheap, that's probably worth doing semiannual anyway if they sit atop a
truck in the sun.
They also repair ladder racks and he happens to be in my area doing rack
maintenance for a bigger company so he will have the parts on hand, I
didn't realize when I took over one of the standoffs was gone.
Fwiw it's free for them to come out. I'm pretty sure this is the outfit
that does our fire departments ladder inspections and testing

On Feb 17, 2018 12:18 PM, "Mark Radabaugh"  wrote:

We have a company (Batavia Services Inc. http://www.laddermatters.com) that
comes by the shop once or twice a year (I think it’s every 6 months) and
inspects/repairs all of the ladders.

The ladder inspection / maintenance includes replacing any damaged or
broken parts, cleaning and waxing (keeps the fiberglas from deteriorating
and sticking fiberglas in your hands), and a written report saying they are
in good condition.   They can fix some fiberglas issues, though some are
just too far gone.

If they can’t be fixed (and there are a number of issues they can’t fix)
they let us know that the ladders need to be discarded.   On occasion they
have been able to shorten the ladder by cutting off a damaged section and
reinstalling the end caps.

Mark


On Feb 17, 2018, at 11:39 AM, Jeremy  wrote:

The ladder safety class that I took said that any damaged ladders should be
cut up into pieces before throwing them in the garbage.  That way, nobody
gets them out and attempts to repair them.

On Sat, Feb 17, 2018 at 8:12 AM, Chuck McCown  wrote:

> That tape works really well, but I would never attempt to fix a fiberglass
> ladder unless it was a really minor non structural fix.  Like some
> splintered area.
>
> *From:* Steve Jones
> *Sent:* Friday, February 16, 2018 9:25 PM
> *To:* af@afmug.com
> *Subject:* Re: [AFMUG] Fixing fiberglass ladders
>
> I dont figure. Theres that black carbon fiber wrap, i thought about that.
> Not cause i think it will work but i want to check the tape out
>
> On Feb 16, 2018 9:08 PM, "Matt Hoppes" 
> wrote:
>
>> I wouldn’t touch them with a 35 1/2 foot pole.
>>
>> > On Feb 16, 2018, at 21:55, Steve Jones 
>> wrote:
>> >
>> > Ive got two broken ladders from tech drops. Can you fix these safely?
>> Both tipped out the upper guides and popped through the fiberglass. I just
>> hate to toss 2 otherwise good ladders in the trash
>>
>

Re: [AFMUG] OT do I have courage

[chuck]

Now, if only TSLA would get back down to $200 I would buy some of them again.  

From: ch...@wbmfg.com 
Sent: Thursday, May 10, 2018 2:52 PM
To: af@afmug.com 
Subject: Re: [AFMUG] OT do I have courage

I did it.  400 shares...

From: ch...@wbmfg.com 
Sent: Thursday, May 10, 2018 2:47 PM
To: af@afmug.com 
Subject: [AFMUG] OT do I have courage

HMNY (MoviePass) is trading at 61 cents today.  

Off its peak of $38.86.

I wonder if I have the guts to buy any.  

Re: [AFMUG] OT do I have courage

[chuck]

I did it.  400 shares...

From: ch...@wbmfg.com 
Sent: Thursday, May 10, 2018 2:47 PM
To: af@afmug.com 
Subject: [AFMUG] OT do I have courage

HMNY (MoviePass) is trading at 61 cents today.  

Off its peak of $38.86.

I wonder if I have the guts to buy any.  

[AFMUG] OT do I have courage

[chuck]

HMNY (MoviePass) is trading at 61 cents today.  

Off its peak of $38.86.

I wonder if I have the guts to buy any.  

Re: [AFMUG] Good tower for 100'

[Justin Wilson]

http://www.mtin.net/blog/towers-and-pricing/ 


A blog article I did awhile ago.  Pricing is still pretty relevant.

Justin Wilson
j...@mtin.net

www.mtin.net
www.midwest-ix.com

> On May 9, 2018, at 3:05 PM, James Howard  wrote:
> 
> Sounds like roughly $12k total.  Thanks much!  That helps a lot.
>  
> From: Af [mailto:af-boun...@afmug.com ] On 
> Behalf Of ch...@wbmfg.com 
> Sent: Wednesday, May 9, 2018 1:51 PM
> To: af@afmug.com 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> Not really sure as we did most of it ourself.  Probably $2000 for the 
> foundation and another $1500 for erection.  
>  
> From: James Howard 
> Sent: Wednesday, May 9, 2018 12:44 PM
> To: 'af@afmug.com ' 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> What did you end up spending to install it?
>  
> From: Af [mailto:af-boun...@afmug.com ] On 
> Behalf Of ch...@wbmfg.com 
> Sent: Wednesday, May 9, 2018 1:40 PM
> To: af@afmug.com 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> $5,721.00 + Tax and shipping
>  
> $7,889.00 
>  
> From: James Howard 
> Sent: Wednesday, May 9, 2018 11:40 AM
> To: 'af@afmug.com ' 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> What did it end up costing?
>  
> From: Af [mailto:af-boun...@afmug.com ] On 
> Behalf Of ch...@wbmfg.com 
> Sent: Wednesday, May 9, 2018 11:43 AM
> To: af@afmug.com 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> Rohn SSV.
>  
> From: James Howard 
> Sent: Wednesday, May 9, 2018 10:30 AM
> To: 'af@afmug.com ' 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> Dredging up an old thread here.  What did you end up going with Chuck?
>  
> From: Af [mailto:af-boun...@afmug.com ] On 
> Behalf Of Chuck McCown
> Sent: Monday, October 9, 2017 2:32 PM
> To: af@afmug.com 
> Subject: Re: [AFMUG] Good tower for 100'
>  
> Needs to be self supporting.
>  
> From: Chuck McCown 
> Sent: Monday, October 09, 2017 1:31 PM
> To: af@afmug.com 
> Subject: [AFMUG] Good tower for 100'
>  
> Found a 96 footer Titan from Tessco for about $4600.
> Any better deals or stronger towers for a similar price?
> Total Control Panel
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Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

[chuck]

When you say you can parallel as many as you want, but then say to limit the 
load on individual units, that does not sound like all the outputs are combined 
to me.  

Do you actually combine the outputs in parallel?  

If so you really cannot limit current to individual units, the load will divide 
across the inverters based on internal and external impedances.  

From: Eric Kuhnke 
Sent: Wednesday, May 9, 2018 8:10 PM
To: af@afmug.com 
Subject: Re: [AFMUG] 48 vdc Inverteres for Data Room 6kw ?

You could also look into individual 1500W meanwell true sine wave inverters, 
running in parallel off your 48vdc battery bus. You can parallel as many as you 
need. Don't load any individual one with more than 1300W constant. Wire up the 
output from each meanwell to 120vac PDUs with amperage meter inline and 
distribute from there. 

On Tue, May 8, 2018, 12:58 PM Gino A. Villarini  wrote:

  Looking for 48 vdc inverters for data room applications in the range of 6-8 kw

  Can be a all in one system ( charger plus Inverter) , must be always online 


Gino A. Villarini
   
President 
Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968