i need a hot wire cut off for pvc film. to separate panels.?
967084
I would use a length of nichrome wire (see links below) stretched between a couple copper blocks. You could make some sort of pinch block out of the copper and connect a power supply to the copper. (or drill a hole through it with a set screw, tap a hole and us a pan head screw)  You will have to insulate the copper from the rest of the world so you don't short something out.  G-10 (a glass/epoxy resin) makes a good moderately high temperature insulator.  One of the contacts should be fixed and the other allowed to "float" and allow for changes in the length of the wire due to heating.  A spring could be used to provide tension or an air cylinder.  The power supply will depend on the length and diameter wire you choose.  If there is a problem with the electrical contacts heating up, you could run some cooling water through them.  Just drill a hole through it and 1/8 NPT pipe tape both ends.  You can plumb some water to it and it will keep the copper chilled.
574497
Under $5.00 - click here http://www.sfcable.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=VS20-08\n\nor if link doesn't work, go to google and type 'VGA splitter'
263946
Have each page work on the same princable as the bi-metallic thermometer.  Try to find two materials the expand differently than eachother because of heat, or you could use humidity to expand one material more than the other. You could probably find some material that contracts (or expands) when an electrical current passes through it. place a strip of this along the top and bottom of each page. Thats all i can think of right now.\nCool question by the way.
1175058
When the panel cools to the dew point, condensation can cause short circuits between phases. It is necessary to have condensation heaters operating in MCCs and PCCs.\nI always specify 100W condensation heaters operating at half voltage ie. Specify 220V heaters and connect them to 120V. This will ensure long life and a lower surface temperature.\n\nSource: 50 years Electrical engineering experience
300790
Here's a link for annealing copper wire.  I don't know if that's what you want.
786190
Try the Sheetmetal Contractors Association  its somthing like SMACA .\n\nFabrication is not the hard part.   Laying out the various fittings may be more than you want to do.\n\nThere are software packages available that will do the layout work for you but all I've seen are pretty expensive.
210462
The link suggests laminations with polarized films.  Good luck.
867963
use an acetylene torch aluminum rod & flux.
877781
It may not be the best project, since it involves high voltage between two plates...usually science fais prohibits a dangerous element \n\nIf you proceed, insulate two plates from each other and screen fingers from touching them of touching the screen. Put a hig voltage transformer on each conductor.\n\nHere is a link for a project\nhttp://www.tceq.state.tx.us/assets/public/assistance/education/air/air_pollution_control.pdf
267295
Dont cap them as a unit. cap each wire separately.
522225
Polyethylene is commonly used, sometimes "foamed" to lower the loss factor.\n\nThe best cable employs Teflon.\n\nHigh power transmitting cables have a minimum number of discrete spacers to maintain the geometry.
1137609
there is insulation on the wire...........
377981
While i agree with droptoptommy. there are places that already have pressure splitters that might be willing to cut it for you.. sometimes for free if they arnt  busy and its no trouble.\n\nOther then that, the circular saw is about the best bet, as it cuts the straightest line and removes the least amount of material from the stone.
287343
I would probably use Light Emiting Diodes connected to a low voltage dc source using very small gauge twin-lead wire.
546741
VCD cutter software is avialble in market .free version are also availble.You can cut desired length from big part
910217
There are two issues to consider, cable heating and voltage drop.  Of the two, voltage drop is by far the easiest.  You need to determine what the allowable voltage drop in you cable is.  The voltage drop is just I x R where I is the current and R is teh round trip cable resistance.  The specification of 100 kW isn't enough.  If its a high tension 100 kV line, the current is only 1 amp and a run of 16 AWG wire would deliver about 99,999 volts out of the original 100,000 volts to your load.  If its a 100 volt system then a 4 AWG wire would only deliver only 20 volts to the load.  \n\nThe formula for wire resistance (in AWG) is that 10 AWG has 0.001 ohm/ft.  Each increase of 1 in the gauge increases resistance by the cube root of 2 (about 25%).  You calculate by picking what voltage drop you can live with, for the known current figure the resistance, knowing the length figure the resistance per foot, and then pick the AWG using the above.\n\nThe second concern is wire heating.  Although you could do the heat transfer calculations, instead look up the allowable ampacity for any wire in an electrical engineers or NEC handbook.
887151
Pick up a can of "dust off" it is compressed air.  If the dust got in, it should be able to be blown out, or at least off to the side where it isn't in your drawing.  I personally would just dissassemble the screen carefully.  They do come apart.  But, if you are not sure of yourself.. then I would try the air.  It is non conductive, non abrasive and should do the job for under $5 and a few seconds.\nGood luck.. TonyD