hmmm

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hmmm (lemmy.world)

submitted 14 hours ago by The_Picard_Maneuver@lemmy.world to c/hmmm@lemmy.world

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[–] DarrinBrunner@lemmy.world 108 points 14 hours ago (6 children)

That piece of gas flex has become the only neutral current path for the electrical service to the house. This occurs when the electrical service's neutral conductor fails, and there is no good bonding of the gas service at it's entrance point, and the water service to the building is plastic.

[–] billwashere@lemmy.world 35 points 11 hours ago (2 children)

This makes total sense but how does this not go boom? No oxygen in the gas line?

[–] Sludgehammer@lemmy.world 29 points 10 hours ago (1 children)

Exactly that.

[–] Bazoogle@lemmy.world 11 points 10 hours ago (1 children)

So you're saying you should poke a hole in the line?

[–] InputZero@lemmy.world 5 points 9 hours ago

That would just make a jet fire. Which may eventually result in the catastrophic failure of the pipe but if you really want to see a house jump cut a slot. Much more area for gases to mix. It's only 1psi probably so a hole may not be enough.

[–] SchmidtGenetics@lemmy.world 10 points 10 hours ago* (last edited 10 hours ago) (2 children)

Autoignition temperature of natural gas is above 500c. Need a spark, or enough heat, there could even be a leak and this not be enough heat to ignite.

[–] billwashere@lemmy.world 7 points 8 hours ago* (last edited 8 hours ago)

I’m pretty sure if it’s red hot it’s close to if not over 500°C but I guess it depends on the metal.

At least according to this Wikipedia article. https://en.wikipedia.org/wiki/Red_heat

[–] 8oow3291d@feddit.dk 2 points 8 hours ago (1 children)

So when you say "Autoignition", then ignition of what? For natural gas to "ignite", as in burn or in other words oxidize, there need to be an oxidizer present.

[–] SchmidtGenetics@lemmy.world 1 points 8 hours ago

there could even be a leak…

[–] kalpol@lemmy.ca 1 points 5 hours ago

Someone bonded ground to the gas pipe not the water pipe.

[–] socsa@piefed.social 2 points 7 hours ago

Code requires bonding for all Corrugated Stainless Steel Tubing installations, but these "appliance connectors" get an exception for some reason.

[–] tunetardis@piefed.ca 9 points 10 hours ago

So electrician/plumber/HVAC/gas co/exorcist? What are we looking at here?

[–] naeap@sopuli.xyz 1 points 6 hours ago* (last edited 6 hours ago) (2 children)

Stupid question probably:
Couldn't I use it as default neutral and heat the water with it?

Edit: Obviously not the gas pipe itself, but I'm not really familiar with gas boilers, do didn't think of that
But can't I use a normal/real neutral to heat the water?

This is very obviously bullshit, what I'm thinking, but if the stuff in the house still works, while heating up this tube that much, I'm wondering, if that energy can't be used somehow

[–] Cethin@lemmy.zip 1 points 2 hours ago

Pre-heating the gas should make it more efficient. I know you meant to do this with water, but this would recover some of the energy this way too. It's just incredibly dangerous.

[–] piecat@lemmy.world 1 points 3 hours ago

That is the gas line.

[–] jhdeval@lemmy.world 2 points 9 hours ago

So s8nce you seem to know what you are talking about how can this be fixed? A good ground rod by the gas meter?