How often do you see the TVSS double lugged to the main breaker in a panel? I see it pretty regularly
However, in reading 285.21 it sounds as though that doublelugging is required. More specifically 285.21(A)(2)Feeder Supplied Building or Structure
The transient voltage surge suppressor shall be connected on the load side of the first overcurrent device at the building or structure.
Do some people interpret this a meaning attached to the first overcurrent device or what? I interpret as meaning downstream of the first device.
[This message has been edited by txsparky (edited 05-27-2003).]