1kV DC Circuit - Insulation on ground wire?What is the purpose of a turntable's ground wire?How does earth ground complete the circuit?Wire the green ac earth wire in wooden chassis?Measure small voltages in a high voltage circuitLine to ground faults
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1kV DC Circuit - Insulation on ground wire?
What is the purpose of a turntable's ground wire?How does earth ground complete the circuit?Wire the green ac earth wire in wooden chassis?Measure small voltages in a high voltage circuitLine to ground faults
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$begingroup$
If I have a 1kV DC circuit, does the ground wire need to be rated for the full 1000V?
The circuit is pretty simple, two wires from a power supply to a resistive load.
dc ground high-voltage insulation
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
$endgroup$
add a comment |
$begingroup$
If I have a 1kV DC circuit, does the ground wire need to be rated for the full 1000V?
The circuit is pretty simple, two wires from a power supply to a resistive load.
dc ground high-voltage insulation
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
$endgroup$
$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago
add a comment |
$begingroup$
If I have a 1kV DC circuit, does the ground wire need to be rated for the full 1000V?
The circuit is pretty simple, two wires from a power supply to a resistive load.
dc ground high-voltage insulation
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
$endgroup$
If I have a 1kV DC circuit, does the ground wire need to be rated for the full 1000V?
The circuit is pretty simple, two wires from a power supply to a resistive load.
dc ground high-voltage insulation
dc ground high-voltage insulation
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
edited 3 hours ago
MaxwellEE
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
asked 9 hours ago
MaxwellEEMaxwellEE
406 bronze badges
406 bronze badges
$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago
add a comment |
$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago
$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago
$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
Consider this:
You have your 1kV power supply, with an impressively insulated wire going out to a resistor. Coming back, you have a return wire with light insulation because, hey, it's grounded!
Now the ground wire breaks at the power supply.
Your "safe" ground wire is now at 1kV. Is that light insulation sufficient?
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
$endgroup$
add a comment |
$begingroup$
If the 1kV is AC, the peak voltage may be even 1,4 KV.
If the power supply ground is on the same reliable ground as the resistor which is grounded directly at one end (f.e. one common metal casing for power supply and resistor), the ground wire does not need any isolation at all resp. the ground "wire" is the metal casing that does not have an insulation.
The high voltage in a microwave oven of 2000 resp. 4000V is grounded at one side at the metal casing which is connected to PE. Only the insulation of the other "hot" wire coming from the high voltage transformer is rated for that high voltage.
But - as mentioned in the first answer - if the ground could be interrupted, both wires must be insulated for the high voltage.
For a metal casing of a MW, it is highly unlikely - if not impossible - that the metal casing will be separated by fault in a way to endanger the user with high voltage. There would be leaking MW radiation as well.
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
$endgroup$
add a comment |
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
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votes
active
oldest
votes
$begingroup$
Consider this:
You have your 1kV power supply, with an impressively insulated wire going out to a resistor. Coming back, you have a return wire with light insulation because, hey, it's grounded!
Now the ground wire breaks at the power supply.
Your "safe" ground wire is now at 1kV. Is that light insulation sufficient?
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
$endgroup$
add a comment |
$begingroup$
Consider this:
You have your 1kV power supply, with an impressively insulated wire going out to a resistor. Coming back, you have a return wire with light insulation because, hey, it's grounded!
Now the ground wire breaks at the power supply.
Your "safe" ground wire is now at 1kV. Is that light insulation sufficient?
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
$endgroup$
add a comment |
$begingroup$
Consider this:
You have your 1kV power supply, with an impressively insulated wire going out to a resistor. Coming back, you have a return wire with light insulation because, hey, it's grounded!
Now the ground wire breaks at the power supply.
Your "safe" ground wire is now at 1kV. Is that light insulation sufficient?
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
$endgroup$
Consider this:
You have your 1kV power supply, with an impressively insulated wire going out to a resistor. Coming back, you have a return wire with light insulation because, hey, it's grounded!
Now the ground wire breaks at the power supply.
Your "safe" ground wire is now at 1kV. Is that light insulation sufficient?
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
answered 8 hours ago
TimWescottTimWescott
14k1 gold badge11 silver badges28 bronze badges
14k1 gold badge11 silver badges28 bronze badges
add a comment |
add a comment |
$begingroup$
If the 1kV is AC, the peak voltage may be even 1,4 KV.
If the power supply ground is on the same reliable ground as the resistor which is grounded directly at one end (f.e. one common metal casing for power supply and resistor), the ground wire does not need any isolation at all resp. the ground "wire" is the metal casing that does not have an insulation.
The high voltage in a microwave oven of 2000 resp. 4000V is grounded at one side at the metal casing which is connected to PE. Only the insulation of the other "hot" wire coming from the high voltage transformer is rated for that high voltage.
But - as mentioned in the first answer - if the ground could be interrupted, both wires must be insulated for the high voltage.
For a metal casing of a MW, it is highly unlikely - if not impossible - that the metal casing will be separated by fault in a way to endanger the user with high voltage. There would be leaking MW radiation as well.
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
$endgroup$
add a comment |
$begingroup$
If the 1kV is AC, the peak voltage may be even 1,4 KV.
If the power supply ground is on the same reliable ground as the resistor which is grounded directly at one end (f.e. one common metal casing for power supply and resistor), the ground wire does not need any isolation at all resp. the ground "wire" is the metal casing that does not have an insulation.
The high voltage in a microwave oven of 2000 resp. 4000V is grounded at one side at the metal casing which is connected to PE. Only the insulation of the other "hot" wire coming from the high voltage transformer is rated for that high voltage.
But - as mentioned in the first answer - if the ground could be interrupted, both wires must be insulated for the high voltage.
For a metal casing of a MW, it is highly unlikely - if not impossible - that the metal casing will be separated by fault in a way to endanger the user with high voltage. There would be leaking MW radiation as well.
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
$endgroup$
add a comment |
$begingroup$
If the 1kV is AC, the peak voltage may be even 1,4 KV.
If the power supply ground is on the same reliable ground as the resistor which is grounded directly at one end (f.e. one common metal casing for power supply and resistor), the ground wire does not need any isolation at all resp. the ground "wire" is the metal casing that does not have an insulation.
The high voltage in a microwave oven of 2000 resp. 4000V is grounded at one side at the metal casing which is connected to PE. Only the insulation of the other "hot" wire coming from the high voltage transformer is rated for that high voltage.
But - as mentioned in the first answer - if the ground could be interrupted, both wires must be insulated for the high voltage.
For a metal casing of a MW, it is highly unlikely - if not impossible - that the metal casing will be separated by fault in a way to endanger the user with high voltage. There would be leaking MW radiation as well.
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
$endgroup$
If the 1kV is AC, the peak voltage may be even 1,4 KV.
If the power supply ground is on the same reliable ground as the resistor which is grounded directly at one end (f.e. one common metal casing for power supply and resistor), the ground wire does not need any isolation at all resp. the ground "wire" is the metal casing that does not have an insulation.
The high voltage in a microwave oven of 2000 resp. 4000V is grounded at one side at the metal casing which is connected to PE. Only the insulation of the other "hot" wire coming from the high voltage transformer is rated for that high voltage.
But - as mentioned in the first answer - if the ground could be interrupted, both wires must be insulated for the high voltage.
For a metal casing of a MW, it is highly unlikely - if not impossible - that the metal casing will be separated by fault in a way to endanger the user with high voltage. There would be leaking MW radiation as well.
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
answered 7 hours ago
xeekaxeeka
3081 silver badge5 bronze badges
3081 silver badge5 bronze badges
add a comment |
add a comment |
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$begingroup$
The ratings depend on the application and size of power source but I suspect your power is tiny. Ther ground insulation properties depend on a ground fault open cct. And how likely that may occur.
$endgroup$
– Sunnyskyguy EE75
7 hours ago