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In a typical RV the only connection to a grounding electrode occurs when the shore power cord is attached to the pedestal. An induced surge could come into the system on the shore power cord. During the surge; hot, neutral and ground could all be at several thousand volts. When the surge...

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

Burnt my finger today and went hunting for the https://www.amazon.ca/Polysporin-POLYSPORIN-COMPLETE-30g/dp/B08VCJR5YH Found this right next to it https://www.amazon.ca/Gardner-Bender-OX-100B-Anti-Oxidant-Compound/dp/B000BODU66 I can totally see how someone might think it should go there.

I had the idea this morning and of course somebody has already done it better than I ever could. https://motorcyclephotooftheday.com/2010/12/02/update-worlds-fastest-briggs-and-stratton-custom-motorcycle-seriously/

The NEC requires a dirt reference for voltages >= 50 volts. Hypothesis: I think the reason they require dirt reference is to prevent the system from floating even higher because it becomes increasingly dangerous the higher the system voltage gets with reference to the dirt.

This is my first attempt at a simple generic e-panel style topology for a generic all in one. What have I done wrong? What could I do better? https://tinyurl.com/bdemnjy2 Each page has a hidden hover menu at the bottom allowing navigation between the pages. The n-g bond is disabled in the all...

Fry a pan of bacon to the half way point. Flip bacon and make it into a single unified surface. Put some shredded mozzarella cheese on the bacon. Put some spaghetti sauce on top of the cheese. Puts some pizza veggies on top of the sauce. I like olives and a bit of pineapple. Put a piece of flat...

Looking at page 4 figure 1.2 of https://www.midnitesolar.com/pdfs/SPD_Installation_Manual.pdf I see that the only connection between the dc negative busbar and the ground busbar is through the spd. Since the spd is just some varistors which will not be conductive at normal voltages, I take that...

When folks dumped bodies into lake Mead in the mid to late 20th century, climate change was not on anyone's radar. Assuming some of those folks are still alive, I wonder how many of them are convinced that climate change is a reality now.

User has a panel array, power house, and house all in a straight line. panel_array---50'---power_house---80'---house The plan is to have the n-g bond in the power house and the grounding electrode will also be in the power house. Is the voltage gradient over 80' between power house and house...

Square D QO panels are unavailble from the big orange box store at the moment. So I looked around and these look pretty neat, at least to me. https://images.homedepot.ca/pdf/Load-Center_Sell-Sheet%20EN-pdf.pdf What is your impression/experience of these load centers?

https://www.midnitesolar.com/productPhoto.php?product_ID=217&productCatName=Breakers&productCat_ID=16&sortOrder=20&act=p Notice the jumper on the bottom. Notice the positive and negative are reversed top to bottom. With the breaker closed and the jumper removed is there continuity between top...

I would like a NTC thermistor per cell plus one for ambient temperature. In an ideal world I would like the cell producers to embed the sensor in the cell. But in the real world you would need a standard interface and that probably won't happen.

Looking for 40-70 amps dc output.

I see these style of breakers on RV's. https://www.waytekwire.com/item/46551/Eaton-s-Bussmann-Series-121B50-B2P-KA-Shortstop/ Its says "BAT" next to the copper colored stud. Are these really directional? The reason I ask is I've seen other breakers that are marked with bat and aux that are not...

Scenario: Simple mobile system off grid system. You have an inverter with a case grounding lug in addition to the current carrying positive and negative terminals. You wire the inverter to a positive and negative busbars. The negative busbar is bonded to the frame. Instead of wiring the case...

What tool would you use if you had to make < 5 cuts a day? What tool would you use if you had to make > 15 cuts a day?

Imagine an electric ATV=all terrain vehicle(think quad runner) that is also a welder. The heart of the vehicle is an LFP battery. Some of the primary markets for the product are farming, mining and petroleum discovery/production. Scenario: Its harvest time and you break the mega combine in the...

This is a pretty good example of an entry level inverter generator. https://www.norwall.com/products/champion-2000w-inverter-generator-200952/ Gas Tank Size 1.1 Gallons Run Time 11.5 Hours at 25% Rated Load Weight 39.0 ~50 pounds with...

Has anyone tried compression lugs with thick stranded wire like thhn or xhhw? Does it form a proper cold weld? If you have done it, would you do it again?

Anybody got a link to an nmc discharge curve? Google is failing me. I'm trying to discharge an old battery pack in order to dispose of it today the community environment event. If I don't get a response I guess I will just trust the BMS does the "right thing"TM.

ingredients 1 almond flour biscuit 1 can of salmon or tuna 2 green onions chopped 15 ml apple cider vinegar seasonings salt pepper oregano tobasco sauce etc... preparation tip the salmon/tuna tin into a mixing bowl add biscuit...

The attached spreadsheet is in OpenDocument Spreadsheet format and is zip encapsulated. Its intent is to explore the dead short ampacity of LFP cells and batteries. The typical internal resistance for the big blue LFP cells is ~0.00015 ohms. The resistance of a typical shunt is ~0.0001 ohms...

Warning: your pan and burner will not be exactly the same as mine Cooking: 12 inch seasoned cast iron pan add ~10ml olive oil ~2.5 ml butter set burner to 100%(1 oclock) when butter begins to bubble... set burner to 50%(6 oclock)...

"An airplane in commercial service is hit by heavenly jolts of energy on average once per year." -- https://simpleflying.com/what-happens-when-a-plane-is-hit-by-lightning/

https://postechpiles.com/ I guess it will depend on the local soil. Probably not practical for the Canadian shield. What about in the desert?

Anybody have an RV distribution panel that lists approved AFCI, GFCI or combo breakers? Its my understanding that most distribution panels are generally meant to use tandem breakers. Its also my understanding that tandem breakers don't usually have the extra functionality. I wonder if ($x)fci...

The instrument cluster on most vehicles with an automatic transmission indicates which mode the transmission is in. Anybody know how to find the wire that indicates the transmission is in drive? I think it would be beneficial for dc2dc chargers to use that wire instead of IGN to enable the dc2dc...

Like a Victron Multiplus 2=MP2 it has a 50 amp split phase automatic transfer switch. Like a MP2 it inverts 120 volts to both sides of the panel. Unlike an MP2 its rated for 4000 watts continuous. Unlike an MP2 its 48VDC nominal. Unlike an MP2 it contains a 48->12 dc to dc converter(I've been...

Fill a 12" frying pan with bacon(~5 half slices). Cook side 1 to done but not crispy. flip the bacon make sure it is lined up to give contiguous coverage in the center of the pan. Crack two eggs on top of the bacon. Cover and finish slowly until the yolks are cooked to your preference. Result...

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https://samlexamerica.com/products/120-240v-split-phase-inverter-charger-48v-4200-watt-evo-4248sp/