Ever wanted to know what happens inside an overloaded circuit breaker? I found out. #electrical #electrician #safety #circuitbreaker

TIL about Oliver Heaviside.

He was an #electrician , #mathematician and #physicist who made major contributions to the field of electro-magnetism.

He was born in #Camden , in #London . He discovered ways to improve the performance of telegraph lines (the internet of the late 1800s), he patented the coaxial cable, and he re-formulated the #Maxwell equations on electro-magnetism into the form they have today.

He was a Fellow of the Royal Society, and was the first recipient of the Faraday Medal.

He died after falling off a ladder.

https://en.wikipedia.org/wiki/Oliver_Heaviside

https://www.english-heritage.org.uk/visit/blue-plaques/oliver-heaviside/

#TIL #TodayILearned

An #Electrician Is Begging You Not to Plug Your #SpaceHeater Into an #ExtensionCord

https://www.cnet.com/home/kitchen-and-household/an-electrician-is-begging-you-not-to-plug-your-space-heater-into-an-extension-cord/

Anyone ever consider or already implemented isolated ground AC receptacles for their ham radio station?

Just realized when the #electrician installed our new panel, the first thing the grounding line is firmly connected to is a completely isolated stretch of metal pipe. So if something goes terribly wrong in a few places, we could theoretically end up with a 200 amp kitchen sink faucet. Lovely.

I'd rather be blissfully unaware.

Poking through Charles R. Miller's book, Illustrated Guide to the National Electric Code, 9th Edition. Charles never misses an opportunity to drop his last name in place of logos in all the wonderful vector art
#NEC #electrical #electrician

Hey everyone, I need some help!

I need a sanity check if this outlet/switch is too far outside the metal box on our sink backsplash.

From what I could research you need a box extender for greater than 1/4" away from the wall.

The outlet lead is almost flush with the drywall and I'm concerned if there's a chance of electrical fire if there ever is any arcing.

A contractor is doing this, not me.

Please boost if you can!

Hey #Bristol friends - can anyone recommend a good domestic #electrician?

We need to replace some interior lighting, switches etc plus a couple of external lights.

Thanks!

Alright #offgrid and #electric #electrician people. I need some help.

I have a 7.2kW solar system way up the hill above my cabin. It's a long electric run. I could find the exact number, but hundreds of feet. When we put it in about 18 months ago we went with the advice that we got, which was that due to our high clay soil it was best to do direct burial electric lines. We had an excavator come out and dig the ditch, we laid the wiring with the help of a family friend who's been a solar installer for decades and buried it.

~18 months later now one of our two strings dropped to zero yesterday mid-day. Beautiful sunny day, nothing obvious from above ground that anything has shifted, etc. After working through a list of things to test with the Victron distributor yesterday, we worked through a list with the installer friend today, and we are pretty sure one of the two buried cables has been damaged. Ironically, there's 40 year old panels on the same hillside, with direct burial lines that are still functional.

I took out the bushwhacker and cleared the hillside, got out a shovel and a couple hours later realized there's exactly zero chance I can unbury this cable run and check it. I unburied a few easier sections and there's nothing wrong there. I couldn't even get deep enough to get to the wire along most of the run.

Is there any good way to find the damaged section of wire *without* digging up the whole run? Getting the excavator out again would be a major expense as we're hours from anyone with an excavator, and would probably be almost impossible to unbury without further damaging it. At that point I think we'd be re-running the whole line, which is obviously something I'd like to avoid.

A Scottish #electrician ended up before the Sherriff Court for tapping the meter tails at a house in #Tayport and nicking £4000 of power from his neighbours! (I suspect the "elaborate blocker device" was just Henley blocks (large terminal blocks for strong power) as it clearly didn't bypass the meter)

https://www.bbc.co.uk/news/articles/c6p2ll3vpp3o

@lightspill Personally, I think that depends...

Certain things are matters of taste (i.e. #vi, #vim, #neovim, #nano, #ne or #kilo as #editors) and certain things are just objectively correct things to do (i.e. #PGP/MIME encryption on #eMail, using #MutiVendor & #MultiProvider #OpenStandads instead of #proprietary #SingleVendor & #SingleProvider "solutions"...)

• But as @tantacrul once said: "It's okay to be wrong!"

As a #Linux & #Unix-esque #Sysadmin I'd rather be disliked as #BenevolentDictator than to deliver or even maintain subpar, substandard, insecure and unmaintainable solutions, because like an #electrician, people / businesses or rather clients / employers expect me to plan and deliver solutions that are 'up to code' and by 'code' I mean the relevant laws and standards ranging from #GDPR & #BDSG to #PCIDSS & #BSI...

• EVERYTHING ELSE is secondary!

Nephew Tommy is very handy.

#electrician #electrical #diy #construction #america #funny https://youtube.com/shorts/haaFkGR4LWo?si=8tGlDYmyszxjebd-

How big of a wind turbine could we stick on our roof in #somervilleMA ? Has anyone in town done this, what kind of permitting hurdles might we expect in #massachusetts ? This is a terrible idea for a homeowner to take on without a specialty contractor, right? https://www.dealnews.com/products/Vevor/Vevor-500-W-Wind-Turbine-Generator/471445.html #solarpunk #eco #electrician #power

Any #electrical or #electrician folks able to help?

I have 2 lights in my living room.
When both lights are off, the switch rockers are not in the same position, whic is very frustrating.
When I look at the wiring I am *so* confused.

Things to note in the photos - those two black cables going into a separate little block.

WTF is going on here?

There are no other lights or switches involved - it's not a "stair light" setup.

Halp?

Help me diagnose what’s going on with my very old heat pump. I’m not sure if it’s getting power, because it doesn’t seem to turn on at all. I don’t recognize the kind of switch that’s in the box on the back of my house. Anyone have any pointers? #heatpump #hvac #electrician #homerepair