Fiddle time limited - only time for pictures and a couple of measurements with the 1035
Turns out I do have a Mega fuse.
The Chints are HUGE compared to the Class T fuses but they have much higher AIC.
This is the link
https://www.aliexpress.us/item/3256806481646967.html
This is the...
OK, here are the results of the fuses I happen to have laying around - all values in ohms - 4 wire 1035+ meter
Class T 300a = 0.00025
Class T 200a = 0.00040
ANL 250a = 0.00054
MRBF 200a = 0.00043
Chatgpt says -
You
the topic is a DC breaker with a burned contact on one side translate this to what the user meant?
I found a crimped on wire feral sold the issue. I am perusing a come commercial bullet breaker resolution
It seems like the user is discussing a situation with a DC...
I plan to go into a subterranean bunker and become a morlock in 100k year. You can come visit if you bring the right two books and invent a time machine.
You are mistaken - AIC is "Ampere Interrupting Capacity" ... This is the amperage of an arc it can extinguish
The maximum amperage a fuse can handle is variable based on time. For instance a 350amp class T fuse will continue to pass current for around 9 minutes before blowing if it is just...
Make sure when you rebuild you have ionizing smoke detectors verse just the standard optical/heat ones. The ionizing ones can go off from just a clear haze from when the fire is smoldering before starting into full flames, look them up...
OK,
When to use ferrules and when not to use them.
Use them when -
The screw terminal just has the screw directly contacting the wire and the wire is fine stranded.
When the mfg calls for them
When not to use them -
On stranded THHN when the screw pushes on the wires directly unless the mfg...
Yall are missing one qualifier. The more complex a task the more trips to the hardware store. And the less planning or more beer that was consumed during planning the more that will be required.
For instance in the plumbing isle you can always tell those that planned. They are the ones...
ha ha, my company had about 200 of us on-staff at the time when Y2K happened - we are a networking company - we all got a Y2K care basket with blankets and flashlights, they had the buildings locked down, an we were all being paid quadrupal time - It was great to make in an 8 hour shift what I...
Parallel batteries are parallel batteries if you connect them to a bus bar or to each other. If there is not some form of circuit protection device they can dump to each other.
With just two of the car/golfcart format batteries MRBF on the post should be enough. But a class T would be...
Well, to me a suicide cord is any cord with male connection on both ends
Like most thing involving 2 males and voltage, it is going to end badly, especially if beer is involved
When in the Navy in Lemoore I worked in the calibration lab and worked on literally thousands of meters, calibration and repair. Simson 260, fluke 77an, phase angle volt meter, true rms, and a variety of others.
I had a 77an that had been dropped into a drum of old hydraulic fluid and left for...
Well, in the same theme of not busting on the OP, but the bars between the batteries are rigid with no flex to them to account for expansion and contraction.
Just a guess, if the shunt was red hot and hit with cold water it may have just fractured from the thermal shock.
From the pictures it...
Back 30 years ago while in the Navy I was calibrating 5 O'scopes on the bench. While I was moving them so the test leads would reach all I get a little zap. Being 19 and indestructable I lick two fingers, touch one to a ground on the bench and use the other each scope with a lite tap, tap...
Dumb thought, I had an aftermarket blanket on my water heater here for years. Looked like a horse blanket under and silver over. When I would leave for 10 day vacation in December, The 1999 vintage water heater would stay hot the whole time I was gone. It was a gas model and I turned off the...
One other tidbit for you - the resistance of a class T verse a ANL/Mega/ANN fuse is less. I don't have any Mega fuses laying around or I would measure one. That tiny amount of extra resistance turns into a lot of excess heat. I have an ANL that I used with a 12v/2000w inverter and it gets...
IMO mega fuses have no place anywhere in any of this. As in the latest post in up in smoke, I am convinced they played a part in ignition.
I know Victor recommeds them, but even they are putting out class T now.
In particular they have no place in parallel battery circuits. I might consider...
I did enjoy my schools, and you are right, the solder school was the hardest to pass. They inspected most of my joints with a microscope. They would point out one little pit on an otherwise perfect joint and reject it. Send me back to remove all the components and put them back again. That...
I am partial to a MRBF fuse on the battery post (125amps + holder - get them from Mouser electronics cheaper than amazon). Class T between bus bar and inverter.
And piss off @Rednecktek and you won't be sorry, get the Victron.
And to piss off @sunshine_eggo I am going to mention that the Li...
Same as Tim, by doing it myself the cost is less.
By getting tier 1 quality equipment I'll spend more up front but reduce the operating costs and maintenance requirements.
By doing everything right and to code I eliminate many failure points thought out by people smarter than me...
My quote was $90k for rooftop install without batteries. The installer was rabid about using solar shingles since I needed a new roof as well. So I had him quote it both ways and imagine that they cam out pretty close to the same.
That quote is what brought me here.
I learned that what he...
Blue sea systems tends to buy bussman, eaton, and littlefuse and just put their own label on the package. So, generally much cheaper to buy the real brand instead of blue sea.