Insulated wire question

[jadaro2600]

Perhaps someone with a more intricate knowledge of electronics can advise me on this one:

Insulated wire has a voltage rating, what influence does this have when it's providing a source voltage in a collapsing magnetic field  when it is incorporated in a solenoid?

Can the voltage rating be surpassed when the wire is incorporated?

I doubt it, but it would be nice to know if i'm going to wind a large trigger coil, whether or not I can use 600v insulation to supply 2000v or higher.

[sparks]

  The voltage rating you mention is probably an ac voltage potential rating.  It is a hell of a lot easier to insulate ac than dc.  So if your duty cycle is very short and there is relaxation of the potential you should be able to get away with overvoltage.  Most magnet wire used for generators and electric motors are arranged so that the turn to turn voltages are minimized.  The coils are then dipped into special varnishes in a chamber that is subjected to vacuum and pressure to squeeze out any air that remains trapped in the coils.  This does two things.  It increases the insulation value between turns and helps absorb the electrostrictive forces that cause windings to fatigue mechanically.  The magnet wires actually change dimension and will chaffe through due to friction.

[jadaro2600]

Thankyou sparks,

The unusual thing here, is I want it to specifically perform without breakdown - the insulation rating is actually unknown, and I have plans on making it a solid state setup, so it won't be in a motor.

My options are limited, I've though about adding insulation, but this seems time consuming.

I wouldn't know where to get the enamle, or if it would do any decent insulation.

I was also considering plaster, or thin films to keep layers seperated, all would be for not if the short occurs on the ends of the solenoid though.

[Judges]

I don't know the application of your coil but you might consider insalling som removable shunts.Another idea is a dozen(or less) turns around any accessable part of your core connected to around 20-30volts from a variable DC source will also change coil properties (saturation)

Of course if this is an open air coil then none of the above applies,,(smile)
Respectfully
Joe in Spring time Texas

[sparks]

  You could just throw the whole coil in a bucket of transformer oil.  This is what the power companies do.