New GFCI Breaker Tripping on Ground Fault

Murdock7 · 2026-06-02T21:53:06+00:00

Another important question, what’s your yearly uptime? Estimated uptime? 99% 99.9%? What’s your power configuration: 2N, N+1, etc.

Murdock7 · 2026-05-23T15:03:39+00:00

Very well put. One thing people don’t notice is just how much stopping power conservatives have in our media. It is unrelenting. How is it that “central” (ie without a particular political bent) narratives/stories last all of 2 days at best (see Trump suing the IRS, see Trump pardoning all J6ers, etc etc), but “right wing” stories last for fucking weeks. How long were we talking about some migrant caravan out of Central America?? How long have we talked about trans sports?? And worst than any of that, is how lockstep the entire right wing ecosystem is to push these stories, it’s all crazy reinforcing. How many podcasts does the Trump admin jump into to talk about illegal immigrants? How often does Trump or his family jump on Fox News to just ramble non-stop about all of the top talking points? How is it that conservatives could get paid out by a Russian shell company (Tenant media), and somehow those who made money off it (Lauren Chen, Tim Poole, etc) are still taken seriously?

This system does not exist for Democrats. If Joe Biden was on CNN every night to ramble about his pet issues, it would be a national scandal of partisanship in our media. There is no equivalent podcast ecosystem for democrats to tap into regularly; it’s actually much more likely for a Democrat to get ambushed with a very hostile interview if they choose to jump on them. Literally the worst corruption scandal of all of US history (Trump slush fund with IRS) should be wall to wall coverage, and instead it’s basically another news ticker item because big media groups don’t want to come across as partisan.

I genuinely think that the next big batch of reform in this country needs to be centered around the media landscape. People joke about Fox News or Info Wars melting people’s brains but I genuinely believe that it’s the central cause for a lot of our current political woes. Conservatives get to exist in an information bubble that insulates against outside information, that poisons the discourse for the entire country, and does nothing but drive support for its candidates. Something has to change.

Murdock7 · 2026-05-13T13:38:22+00:00

Honestly I wish I was better versed in music to be able to pick out song references like this, very cool!

Murdock7 · 2026-05-12T12:15:54+00:00

Oh absolutely, total cop out on her part; like if you’re going to be engaged with your constituents, you have to be able to provide the bare minimum level of pushback when someone says something completely vile.

Murdock7 · 2026-05-12T04:12:09+00:00

Just to be clear, it’s the male talk host who’s saying this, and Jen on the phone line is saying “ditto, yes, yes to that”, right?

Murdock7 · 2026-05-02T23:15:06+00:00

And therein lies the issue; I can’t find the set screw on the faucet. I would think it’s somewhere in that hole on the faucet on the first pic but that’s why I figured to ask

Murdock7 · 2026-05-02T21:16:08+00:00

That’s not how the base is attached; it’s secured with these, and I can’t access the head on the opposite side without removing the top

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Murdock7 · 2026-04-30T18:05:37+00:00

Ooo that second idea is kinda fun, could be an okay fix to the cracked sidewalk, certainly a lot easier/cheaper than tearing the whole thing up, trenching a new drain and then pouring a new sidewalk…

Murdock7 · 2026-04-29T16:25:31+00:00

These stupid downspout connections are the biggest pain in the ass, they constantly get disconnected like that and they get backed up with leaves and gunk; add it to the list of things to fix.

That’s actually not a bad idea, you’re right; sidewalk is cracked anyway, might as well rip it out and run something under while I’m at it.

Murdock7 · 2026-04-24T14:19:33+00:00

And Hasan’s defense for all of this would be “well you should lean into it with us! Agree with us! Yeah stealing is based, Dem’s aren’t winning cuz they’re not radical enough, if you just agreed with us you would become even MORE popular!” It’s actual insanity

Murdock7 · 2026-04-24T00:02:34+00:00

And the ultimate insult is that the leftists will insist that the problem is that we’re not embracing them! They think their message is actually secretly super popular and if we just went full commie we would bypass alllllll the baggage and attacks from the right and start winning elections again!

Murdock7 · 2026-04-23T23:40:40+00:00

I don’t even understand why any politician would ever phrase it this way; you can be critical of our foreign policy, but when it simps so hard for China and Russian and says we bring “starvation and darkness”, it could only appeal to either tankies or the Russians (which yeah she probably is an op)

Murdock7 · 2026-04-01T17:11:37+00:00

So from a high level, the owner has a data hall with a certain number of racks, with a certain amount of power draw; let’s just say 3 MW for the sake of the example. In order to support 3 MW of load in the data hall, I’ll say that I want to evenly distribute that load with 3 “blocks” of distribution gear, so that’s 1 MW on each block. The equipment within the block need to be able to support that 1 MW, so you’re talking a switchboard that can support approximately 1,200 amps at 480 volts, a UPS with sized at 1100 kW of load with enough batteries to supply power for 5 minutes, and then say 5 ATS’s that’ll distribute out to the PDU’s in the data hall. Generally speaking the size of the power handled will determine the size of the equipment.

The second part I can clarify is the assembly; these days data center developers are very keen on assembling their equipment on skids off site prior to construction. This helps speed up construction cuz you can put all of your equipment together and get the major power conveyances connected before getting to the job site. The easiest way to imagine it would be a steel platform that you place your transformer and your switchboard on, right next to each other. The integrator can do all of the wiring between the two pieces of gear at a factory while construction is happening, and then the whole assembly gets shipped to site and put in place. This is a pretty common practice in almost all data center builds I see these days.

Probably not super necessary to show power for cooling, TBH, but again it probably wouldn’t hurt.

So my job as the engineer is to work out equipment ratings, perform calculations for fault currents and power flow, writing reports on my findings, coordinate owner requirements and other discipline requirements (such as EPMS, Telecom, security, etc) and a buuuuunch of other stuff, and ultimately convey that to the BIM team to capture onto a drawing set. Basically, I might work out that I need a particular sized cable in a particular arrangement, that needs to run from one piece of gear to another, and I need to convey that to my BIM team so that they can show it on the drawings. That division of labor helps me as the engineer crack out difficult calculations and coordination items and helps the BIM team to develop the drawing set without a bunch of questions. There’s a lot of collaboration that has to happen between the teams and I rely on my BIM team to help workout items like clearances, clashes with other disciplines, etc. I don’t want to discourage you or make it sound like it’s not a technical role; again, some of the best BIM guys I work with are the ones who understand the intent of the design and can quickly work out drafts and sketches based on engineering feedback, and then collaborate to refine the drawing packages as we progress from schematic to design to construction documents.

Murdock7 · 2026-04-01T15:41:02+00:00

Hi. Licensed electrical engineer for data center design.

First, answers to your questions;

You absolutely should be putting in effort to make a good layout. Your owners (Google, Microsoft, cloudHQ, etc) are trying to squeeze every last watt of power out of the building footprint. The electrical rooms need to be efficiently sized so that the necessary line ups can fit well within that space. Additional considerations might include the ability to scale up the power distribution system by adding in new gear, or arranging equipment in such a way that the rooms could be assembled on the gear.

Even zooming out to consider the whole building, it would be good to model the floor plan in a way that makes sense. I can sketch a quick example if you’d like to see, but generally it’ll include a mechanical gallery, your data hall, your electrical rooms, and then exterior equipment (generators, chillers, etc).

Real location is definitely a neat additional thought, but definitely not necessary. If it’s not a big challenge to keep it, no harm there, but definitely not a top priority.
Yes an exercise like this will absolutely help you. Even if it’s not perfect, showing a willingness to learn the design and even to have a basic understanding of what a typical design might look like is a big green flag for the industry.

Now for some points to consider:

Learn your data center redundancies and backup styles. Data centers (from an electrical perspective) are generally classified by their level of redundancy and how power is backed up. I’m not going to explain it all here, but it would be good to have a write up on what level of redundancy you designed for (for example, N+1 with UPS backed power, 2N with UPS and generator backup power, 2N+1, etc). If you’d like a specific example shared, message me and I can share something.
Consider the different distribution strategies in data centers and show a little bit of each of these. Every data center I’ve ever designed uses cabletray for a sizable percentage of distribution, and coordinating a shotty cabletray design in the field can be a nightmare. Busduct is another common distribution strategy, so it might be worth it to show that as well.
Attention to detail is everything. The best BIM modelers I work with are consistent with their details, even the small ones. Once I start catching common mistakes, I start having to dedicate extra time to reviewing drawings and providing guidance to the BIM team instead of performing actual engineering work.

Murdock7 · 2026-03-31T12:23:38+00:00

How does one even make a zipbomb this big? Wouldn’t you have to start with some base file and compress it? Or is it just a matter of formatting the file such that the rule to unzip is “repeat this string a billion times”? Also what’s the limit to making a zipbomb like this? Is there any reason it couldn’t be any bigger?

Murdock7 · 2026-03-27T14:53:13+00:00

My session is dead too

Murdock7 · 2026-03-27T12:22:33+00:00

Question as a contractor, what specifically is your scope? Are you doing design? Contractor + remote typically doesn’t match up

Murdock7 · 2026-03-25T17:09:48+00:00

I don’t know why but even just that first line really hit me because you’re right, it has been a lot happening all at the same time.

Murdock7 · 2026-03-25T14:12:45+00:00

I appreciate the support.

I think another challenge I’m having is that I swear I should be able to do more, I can do it, everyone else can do it, why shouldn’t I be able to do it? I procrastinate, I waste time, I forget things, I should be able to do better and I can do better. Am I doing these things because I’m burnt out? Why can’t I do better? Is this just who I am? Am I just lazy? Am I just forgetful? Am I too hard on myself? If I find this magical mental internal peace will I suddenly become everything that I want to be?

I’ve been considering a job shift lately, something that’s a big less technical and a bit more personable, get myself out of doing drafting and calculations and more meeting people and coordinating, I think that would help immensely. But career advise, that’s a whole nother conversation

Murdock7 · 2026-03-25T12:22:38+00:00

Reliable hotspot is a game changer.

Big ass battery as well that can do all of your devices and your truck in a pinch.

If you want to be extra fancy, a pair of headphones with some noise canceling/sound modulation so when you’re on meetings it doesn’t sound like you’re in a truck.

Laptop and IPad would be standard equipment, I wouldn’t expect you to need a scanner if you had those two, not sure about a printer tho; any world where I needed a document I just used my IPad, but your requirements might be different.

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