Author Topic: Grounding a Fixture without Ground Wire  (Read 4107 times)
RyanF40T12
Member
*****
Offline

Gender: Male
View Posts
View Gallery

Re: Grounding a Fixture without Ground Wire « Reply #15 on: July 19, 2016, 05:46:25 AM » Author: RyanF40T12
Good educational info here, thanks.
Logged

The more you hate the LED movement, the stronger it becomes.

good223
Member
**
Offline

Gender: Male
View Posts
View Gallery

Re: Grounding a Fixture without Ground Wire « Reply #16 on: July 24, 2016, 09:39:58 AM » Author: good223

In that case I would prefer not direct connection, but via some high impedance, preferably Y rated capacitors (about 2.2nF) or bleeder resistors (3MOhm total, if using the ordinary parts, assemble that from a series connection of at least 5 pieces).  These provide strong enough current path for the function of the shield as an external starting electrode, but limit the current to a safe level when a fault develops.
[/quote]

So just split the neutral wire up and connect one leg to the ballasts and the other to the resistors or Y rated cap and connect it to the fixture ground?
Logged
Ash
Member
*****
Offline

View Posts
View Gallery


Re: Grounding a Fixture without Ground Wire « Reply #17 on: July 24, 2016, 02:55:58 PM » Author: Ash
Yep

As for the resistor option, all the inner connections between them are still to be considered "live", so isolated well from the enclosure. I'd think that using one resistor of adequate voltage rating (in the KV's, so 1W or higher for 3Mohm) would be more straightforward to isolate than a soldered string of 5, and therefore less prone to problems wit the isolation you put over it
Logged
Print 
© 2005-2024 Lighting-Gallery.net | SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies