grounding on Option-11 2

[mindamartine]

Shouldn't the proper grounging be a #6 sheilded and isolated going back the the same electrical panel as the 4 plex isolated electrical outlet?
The electricians do not want to do what I am asking for.

 

[telebub]

Yep, that's the way I do all my installations. I always tell the customer how I need that ground installed and let them tell the electrician. He's more likely to do what they want because they pay the bill.

 

[hached]

That is the proper way, I've also had a hard time getting this done properly by customers but if it's not done properly then at first signs of problems fingers will be pointed at the ground.

 

[mindamartine]

That is what I thought. Here is the deal. There is a ground bar in the MPOE (where the option-11 will be) that has all the grounding for the lightning protection 110 blocks on it. It is also feeding the ground for Century Links d-marc. The have already brought my POTS line in and on the Century Link side of the RJ21X the line is clear when the bridge clips go on for my side there is a horrible loud ground hum. I do not want to put my PBX ground on any of that.

The switch is owned by the government and
electrician on the project is telling them that this meets with what I asked for. What I asked for was what I wrote above.

 

[KCFLHRC]

It should run to the A/C panel as you described. You want the same ground potential at your I/G receptacle as your PBX safety Ground. Show them the NTP's and insist that it is done that way.

 

[KCFLHRC]

Tell them this,

Connect the NTDU6201 Ground Bar to the ground bus in the AC electrical
panel, or to TGB for an ANSI/EIA/TIA 607 installation using #6 AWG wire.

This is right out of the NTP

 

[KCFLHRC]

Here's a pretty good explanation of grounding Telecommunications Equipment. It references TGB, which is Telecom Ground Bar. So what he is telling you to attach to may very well be acceptable. I always run to the A/C panel though.

http://ceenews.com/mag/electric_grounding_bonding_telecommunications/

 

[monkey101]

you can also let your customer know that by not following the grounding requirements laid out will void warrenty.....i had a customer say they did it properly and we had all sorts of strange issues and Nortel sent their power and grounding person out and found it wasn't up to spec and would not cover the warrenty on the blown cards and would not start to trouble shoot issues until the ground was proper.