especially when you consider railway third rails are at 750v to 850v and as its DC, it holds you on! Not nice and well worth the training.
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Bloody cars
- Thread starter Gary820
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Gary820
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Poorly fitted and rubbed through on a bracket. Abs fault.
If someone looked through my phone they'd wonder what all the random pics were for lol
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ya, at least AC gives you 100 chances a second to rethink things 
I've been clobbered by 380 AC. Some clown fed an isolator the wrong way round. (and this clown was in a hurry and did not double-check!) I undid the first phase, undid the second phase my arm + hand shorted the two. Not a fun experience.
Those batteries will not give you a second chance...
I've been clobbered by 380 AC. Some clown fed an isolator the wrong way round. (and this clown was in a hurry and did not double-check!) I undid the first phase, undid the second phase my arm + hand shorted the two. Not a fun experience.
Those batteries will not give you a second chance...
My phone looks the same.
It's good when you find the little buggers. Not so good when they are so elusive that you look through everything and the fault is still there. Intermittent faults being the worst. I'm trying to fathom one at the moment where a 130Kw fridge compressor trips its main breaker of 250A 'on the odd occasion', around 2-3 times a month. Not easy when it's 40 minutes away and cools a hospital's operating theatres!
Gary820
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Engine has no drive connection as changes the class of vehicle. It's purely to act as a generator for the battery if charge is low, won't re charge just maintains it as best it can.
The range extender is an option too. Can buy a pure electric version.
Yeah it's enough to put you in a box that's for sure. The wife doesn't like that I work on them. You'd have to do something pretty daft to kill yourself tbh. The most risky bit is opening the battery case and disconnecting the cell packs, fair bit of training and exams for that and protocol/paperwork at work first.
The range extender is an option too. Can buy a pure electric version.
Yeah it's enough to put you in a box that's for sure. The wife doesn't like that I work on them. You'd have to do something pretty daft to kill yourself tbh. The most risky bit is opening the battery case and disconnecting the cell packs, fair bit of training and exams for that and protocol/paperwork at work first.
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I would imagine the greatest risk is arc flash burns. DC arcs are very difficult to extinguish and three times hotter than the surface of the sun. I have a huge amount of respect for electricity.
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Gary820
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Yeah they go into it all when do the training. For a car it's hv but is still low in comparison.
We've recently increased the AH of the i3 battery so range increases but voltage stays similar.
Luckily they do factor in for accidents but outside my pay grade to go deal with one lol.
Gary820
Well-Known Member
It's the intermittent ones that's are the worst to sort out. At least for me I get a car brought to me rather then driving out to find the fault has 'gone' again.
Gary820
Well-Known Member
Basically that is the greatest risk unless daft. there's 8 cell packs in the casing and untill you've got the lid off and the link cable removed, you've got 2 cables inside that are the + and - and 400v dc in close proximity. The link splits it in half at the opposite end so makes it much safer to work on the open battery.
The cables are shielded on the ends as you'd expect but I'm sure if you really wanted to they'd make contact!
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Pat
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Well Garry you've scared the crap out of me.I'll stick with my 23 year old Prado
stuff the new cars.
Gary820
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Well 2 days in a row and 2 M4 diff replacements (told you they go wrong in warranty @Shayne lol) so a bit of propshaft porn, carbon composite jobbie.
When re fitting it have to put a specific thread lock on which gives you 12 minutes working time to get the lock nut done up, then has to sit for 3 hours without driving it!!
Basically bolt the suspension back on and push it onto the wheel alignment ramp. By the time that's all adjusted and had a coffee it's ready to drive.
When re fitting it have to put a specific thread lock on which gives you 12 minutes working time to get the lock nut done up, then has to sit for 3 hours without driving it!!
Basically bolt the suspension back on and push it onto the wheel alignment ramp. By the time that's all adjusted and had a coffee it's ready to drive.
Terms like High and Low are relative. I'm working on a High Speed Rail project these days and the specification talks about HV at 25kV (AC) and anything less than 3kV is considered LV.
Bloody scary if you ask me, I jump if I crack a spark off the truck battery!
How exactly does a diff go 'wrong' under warranty Gary? I would have thought that BMW knew how to make diffs that dont eat themselves by now surely?
I guess the only difference is how far it can jump. Both will kill you in one of several nasty ways.
Now that is one damn tunnel, has that just been sat in a garage and not driven.... Pure auto porn though indeed.
Gary820
Well-Known Member
Well that particular car is 2 months old and done 800 miles, yesterday's one 1200 miles!
Don't normally see all of that as covered in heat Shields, exhaust and braces so worth a picture lol.
Basically there's a very small number of diffs that have a manufacturing defect and the clutch packs (electronically controlled lsd) will wear prematurely so have been re called. We/I have 2 to replace and are both now done. They'll be back in 1200 miles to change the oil as they have to be run in!
All M vehicle have to be run in for 1200 miles so if replace engine/diff/manual gearbox the car has to be set to its running in setting, prevents launch control and other things so can't easily abuse it.
Don't normally see all of that as covered in heat Shields, exhaust and braces so worth a picture lol.
Basically there's a very small number of diffs that have a manufacturing defect and the clutch packs (electronically controlled lsd) will wear prematurely so have been re called. We/I have 2 to replace and are both now done. They'll be back in 1200 miles to change the oil as they have to be run in!
All M vehicle have to be run in for 1200 miles so if replace engine/diff/manual gearbox the car has to be set to its running in setting, prevents launch control and other things so can't easily abuse it.
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I must hold the world record high voltage near miss. I was standing under National Grid 440,000 volts and decided to unwind a telly transformer and throw the very thin wire over the lines thinking there would just be a small spark like a 5 amp fuse blowing. WRONG. The thin wire vapourised giving the 440,000 volts a path to earth via my jumper and trousers. It was like kicking GOD in the bollocks. There was an enourmous roar and light which did not diminish with hands over eyes. I had my clothes burned off and spent time in hospital as next day I was blind for another 2 days. Funny that you are immediately blinded then your sight comes back after 10 mins or so then after 12 hours you can't see a thing except blurred light. I did not receive a shock though.
It's not just high voltage that kills, you need a few amps behind it.
It's not just high voltage that kills, you need a few amps behind it.
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