Questions

Can electrodes be repaired?
Can I receive a shock from the system after the unit has been stopped?

Answers

Can electrodes be repaired?
If the ceramic is broken or pin-holed, the electrode is not repairable. If the high voltage lead or mounting tabs are broken or damaged and the ceramic tube is complete, the electrode can be repaired. Credit may apply for useable length of ceramic.

 
Can I receive a shock from the system after the unit has been stopped?
Yes, but the shock is a result of stored electrical energy in the form of static present on the material. Once the corona treating system power supply is de-energized, all power to the electrodes is removed. It is quite common to experience static buildup and discharge in the process of converting films. There are many factors besides a corona treater that can contribute to static buildup. The simple movement of a substrate over a roll will create static. If a roll is not turning...or is turning at a slower speed than the substrate is traveling at...static creation will be accelerated. Environmental conditions such as temperature and the dew point of the air are also factors that can contribute to static build up. There are many commercially available devices to reduce or eliminate static build up.