Ayupmeducks

Nearly spring!! I've noticed bud burst on a few saplings and the Daffs have flower heads forming, soon be an "ocean" of yellow here .

Hey Dave, I've seen some odd things when I was in the repair trade, cast iron frames of AC motors getting hot in the test area, current flowing through eyebolts, but all easily explained when the history of those motors were pulled out the filing cabinet, which should have been done BEFORE the stator was rewound.

RR, my eye's aren't the best, and I find bold type much easier to read, that's why I select it.

Motor burn outs have many reasons, can't say I have seen one due to overload in mining, as there were too many protections from fluid coupling drives to O/L settings, which had to be set to the engineers instructions. From a few years in the repair trade overhauling electrical machinery, I'd say 90% of winding failures were insulation failing, then water, which is insulation failure anyway, and bearing failure damaging the windings.

As far as I'm aware, none of the 11Kv breakers we had U/G had any fuses, except the control circuit fuses in the low voltage protection circuits. I recall opening up one of the 3.3Kv isolator fuses in a Belmos Peebles HV contactor, they were about a foot long and filled with sand. As far as 6.6Kv CB's we used the brush SF6's, which had three charged gas interupters. (Sulpher Hexafloride gas). None had HV fuses, but all had elaborate control circuits. Good job it was a blown fuse, those things were EXPENSIVE!! Most of the mines I worked in were safety lamp mines, so virtually eve

I was probably trained in a totally different environment than you DJ. Mine was the mining side of the trade, where cable size has to be ample for the load, in fact a motor would burn out well before the cable would get warm. The only times I saw cable failure was due to insulation failure causing a hazardous blow out. Most of the time cable failures were due to mechanical failures, something hitting, trapping or roof falls on armoured cables, and trapped or pulled on trailing cables.

I can't 100% agree with you on a fuse/circuit breaker is to protect the cable, maybe in house wiring, but in industrial circuits we used circuit breakers and HRC fuses to protect the WHOLE circuit, that included motors etc. Cables we used in mining were 100 to 300 amp rated at 3.3Kv to 11Kv and 440/415 to 550v for "portable" equipment ie shuttle cars to face machinery, conveyors were rated at 1100 to 3.3Kv, and later all face equipment at 1100v. Most trailing cables were rated at 100 amps, and protection was oil filled dashpots for overload protection, later electronic overload circuits,

The site was migrated to a new server yesterday, so the link you have in your bookmark will be out of date, clear your cache first, delete the old link in your bookmarks/favorites, then do a Google search for the site, use it and book mark it. I know of at least one member who cannot get back in, Mick is aware of the problem firsthand, as soon as he comes up with an answer, I'll pass it on.

There was very little water seeping out of the Bunter Dave. The shafts went through the Bunter, but they were bricked from top to bottom, and the two drifts from pit bottom accessed the Bunter on the other side of the big fault, my only guess is it wasn't the water table on that side of the fault. Beeston Boiler Company had several water wells down into the Bunter to supply all their own water. They were north of the major fault.

The earth is the most important conductor, it could save your or someones life, I've been a stickler for earth protection, and I have over 50 years post elec apprentice experience.

The Bunter outcrops on Castle Blvd in fact the castle sits on it, then it "dives" back underground. Clifton Colliery had two drifts through it, South Main Returns and the Stonehead drift they both dissected one of Nottingham's largest faults, the Trent sits at the fault section at Wilford and dips over 160 feet to the south. Clifton's last pit bottom was in the Deep Hard seam, Stone head drift varied from 1:4 to 1:6 and was 3.4 mile long and ended up in the Deep Hard seam once more.

Mines an OBD2 scanner, I can take the code from the trucks onboard computer and bring the scanner to my computer and down load the codes, bit easier than reading everything on the scanners small screen.

I have a double sloped hill, and anticipated it would be slippy from where I parked and was in 4wd low range, but just to slick. Maybe this year we will bet a truck load of gravel and make a proper driveway up the hill. Pity they don't fit dif locks like tractors have, amazing what a difference they make in very slick conditions.

You can buy a scanner at a reasonable price, I have one, the only problem is learning the codes. They also save you money. unscrupulous repair shops, and dealers fit that mould too!! Try to say this that or the other is faulty, when your scanner say's it's just one sensor!! The socket to plug a scanner into is just under the steering column and to the right or left of it.

You probably get your water from the peak district these days, "soft" surface water. I recall when Nottingham's water was pumped up from the Bunter sand stone strata, it was hard as nails and scaled a kettle very quickly. Mine where I live is loaded with dissolved lime, so water heaters and kettles have to be descaled on a regular basis.

Had S+M , (Snow + Mud), tyres on vehicles for years, when I worked for a living, some of my mates used to have a spare set of tyres for winter driving in the garage. Mind, last Monday I got well and truly stuck in the mud trying to get out of my place, and that was with S+M tyres, 4wd plus my truck isn't light either, put the missus behind the wheel and hauled it up the hill with my tractor. The soil here is waterlogged with all the rain we have been getting.

Daff's are pretty hardy, they usually sprout around early to mid February here and flower end of Feb into March, springs just about five weeks off.

You wouldn't have carried the flights we used...LOL They were bloody HEAVY!! Chain was about the same size as the old shearer haulage chain too. We used twin inboard chains on the heavy duty AFC's, in fact everything was heavy duty on those high production 12-14foot high faces, supports were 640 ton yield, now they are 1200 ton yield and weigh in at over 100 tons each! Shearers weigh over 300 tons each, big at side of the old 16/125's which weighed 10 tons and the AM 400 at 30 tons.

"Run Of Mine" is the raw coal from U/G not washed, contains the rippings (dirt) as well as coal, you needed "finished product".

Simple, get yourself a cheap laptop, then costs are irrelevant. When this site first started cell phones were either a luxury or very few users of them, not to mention, getting on the internet with them was virtually impossible.

I got into the habit of calling films Movies in Australia, same with crisps, they usually called them chips or chippies, and big rigs were called Semi's or prime movers for the tractor only. I was pretty "Americanized" before I even left Australia for the states.

Nahh, mine bleed enough as it is Dave....LOL

I wonder if those pebbles strapped to my toes would get rid of nail fungus....

Some high end tube amplifiers will knock you back $3000 to $5000 each!! A feller who bought most of Marantz's tube components at a warehouse sale and got a contract to use their name on aftermarket Marantz tube design, sells completed "tube Marantz" amplifiers, original designs, but with more up to date capacitors and better quality resistors markets in the several thousand dollar mark!! There are several small companies now marketing high quality vacuum tube stereo amps, so if anyone is willing to fork out $8000 for an amp and pre amp, couple of grand for a turntable, then a pair of

I'm aware that using more than 25watts will burn the voice coils out.