Can electricity pass through glass ?

[Externet]

Hi.
Given enough voltage, will energized things on sides of ~3mm plain glass spark into/across to the other side ? Like plates of a capacitor arcing ?

 

[Nigel Goodwin]

I would imagine so, there's no 'perfect' insulator, and 3mm isn't terribly thick.

Edit: A quick google finds this:

Insulator Breakdown Voltage | Physics Of Conductors And Insulators | Electronics Textbook

Read about Insulator Breakdown Voltage (Physics Of Conductors And Insulators) in our free Electronics Textbook

www.allaboutcircuits.com

A bit scary though that it specifies an inch thick, not just 3mm

 

[Beau Schwabe]

An insulator is essentially a dielectric... two plates on either side of a dielectric form a capacitor. AC passes through a capacitor. So even those rubber sole shoes won't save you if the voltage is large enough and it's AC. Even if the DC is high enough it can punch through the dielectric.