[Lerftest] Waveguide review slides posted

[Kevin Jordan]

HI Jerry,
Let’s meet after the 8:00 meeting on Monday, we can go to the gallery and talk through the best path forward.
Kevin

Sent from my iPad

> On Oct 13, 2017, at 11:40 AM, Joseph Gubeli <gubeli at jlab.org> wrote:
> 
> Hi Jerry,
> 
> 
> 
> Safety did an assessment and said that 18” is OK. This will leave 50” in the 
> aisle, they wanted a minimum of 48”. The SSA doors are easily removable with 
> an 18” gap. Kevin can talk about the other questions you have.
> 
> 
> 
> Cheers, Joe
> 
> 
> 
> From: Lerftest [mailto:lerftest-bounces at jlab.org] On Behalf Of Jaroslaw 
> Kowal
> Sent: Friday, October 13, 2017 11:21 AM
> To: Kevin Jordan <jordan at jlab.org>
> Cc: LCLS II @ LERF <lerftest at jlab.org>
> Subject: Re: [Lerftest] Waveguide review slides posted
> 
> 
> 
> Kevin,
> 
> 
> 
> I think by code you have to have 3 ft spacing.
> 
> Also with 18" spacing behind some of the SSAs you will not be able to open 
> the back door of SSA cabinet if access is need. These cabinets are 30" wide. 
> Is that a concern?
> 
> 
> 
> What I could do as an option is to install RF Interface chassis and 
> contactors in the rack.This would eliminate the need for the access to the 
> old racks.
> 
> In this case I'd need a floor space for additional rack.
> 
> 
> 
> A separate issue is power connections from PSS to SSAs.
> 
> What is the planned location of the PSS panel (assuming we'll go with this 
> solution)?
> 
> What are the planned cable paths?
> 
> Are you planning for cable trays etc.?
> 
> 
> 
> We might be more effective discussing these issues in person. Please set up 
> a meeting with interested parties if you think it's going to be 
> better/faster way.
> 
> 
> 
> Thank you,
> 
> Jerry
> 
> 
> 
>  _____
> 
> From: "Kevin Jordan" <jordan at jlab.org <mailto:jordan at jlab.org> >
> To: "Jaroslaw Kowal" <jkowal at jlab.org <mailto:jkowal at jlab.org> >
> Cc: "LCLS II @ LERF" <lerftest at jlab.org <mailto:lerftest at jlab.org> >
> Sent: Wednesday, October 11, 2017 5:22:29 PM
> Subject: Re: [Lerftest] Waveguide review slides posted
> 
> 
> 
> Jerry,
> 
> Yes the tape is within an inch of final location, it looks to be 32”from the 
> rack to the SSA, is that enough?
> 
> 
> 
> Thanks
> 
> Kevin
> 
> 
> 
> 
> 
> 
> 
> Sent from my iPad
> 
> 
> On Oct 11, 2017, at 5:11 PM, Jaroslaw Kowal <jkowal at jlab.org 
> <mailto:jkowal at jlab.org> > wrote:
> 
> Kevin,
> 
> 
> 
> I'd like to raise concern regarding the spacing behind the SSAs.
> 
> The first rack to the left of HPA houses PSS RF Interface chassis and cross 
> connects. Access to the front of this rack is required for PSS Certification 
> and in case of maintenance.
> 
> We'll have to check if there will be enough space to perform these duties.
> 
> Could someone estimate the spacing from the back of the SSA to this rack? 
> Can I depend on floor marking for this measurement?
> 
> 
> 
> Thank you,
> 
> Jerry
> 
> 
> 
> 
>  _____
> 
> 
> From: "Kevin Jordan" <jordan at jlab.org <mailto:jordan at jlab.org> >
> To: "LCLS II @ LERF" <lerftest at jlab.org <mailto:lerftest at jlab.org> >
> Sent: Wednesday, October 11, 2017 3:58:54 PM
> Subject: [Lerftest] Waveguide review slides posted
> 
> 
> 
> The LCLS-II waveguide layout review was held this AM, the slides have been 
> posted to the wiki:
> 
> https://wiki.jlab.org/lerf/index.php/Reviews
> 
> Comments and questions from the review will also be posted shortly.
> 
> Kevin
> _______________________________________________
> Lerftest mailing list
> Lerftest at jlab.org <mailto:Lerftest at jlab.org>
> https://mailman.jlab.org/mailman/listinfo/lerftest
> 
> 
> 
> <image001.png>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/lerftest/attachments/20171013/54325923/attachment.html>