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Re: Hypothetical Question Cell Phone chargers
Posted by: ForensicEEnMD (IP Logged)
Date: June 27, 2007 08:48AM
Nick,
Breakdown voltage in air at STP is about 380 volts.
Direct plug-in transformer is a step down transformer, usually 10:1 or less
1500 volt surge would equal 150 volts at tip if core could transfere that without reaching saturation.
Dielectric withstand testing on this type of product for UL, etc. is 1500 VAC primary to secondary.
My answer is that I do not believe this is a credible scenerio.
Breakdown voltage in air at STP is about 380 volts.
Direct plug-in transformer is a step down transformer, usually 10:1 or less
1500 volt surge would equal 150 volts at tip if core could transfere that without reaching saturation.
Dielectric withstand testing on this type of product for UL, etc. is 1500 VAC primary to secondary.
My answer is that I do not believe this is a credible scenerio.
| Subject | Views | Written By | Posted |
|---|---|---|---|
 Hypothetical Question Cell Phone chargers
|
1569 | Nick Markowitz | 06/01/2007 06:03AM |
|
Re: Hypothetical Question Cell Phone chargers
|
958 | Gerald Hurst | 06/01/2007 12:03PM |
|
Re: Hypothetical Question Cell Phone chargers
|
869 | John J. Lentini, CFEI | 06/11/2007 02:41PM |
|
Re: Hypothetical Question Cell Phone chargers
|
867 | Nick Markowitz | 06/11/2007 05:22PM |
|
Re: Hypothetical Question Cell Phone chargers |
826 | ForensicEEnMD | 06/27/2007 08:48AM |
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