QRail Installation

BI 7.2.3-46
Jul-2019, Rev 4.2
BI 7.2.3-46
Jul-2019, Rev 4.2
8
2.4 System Electrical Bonding
The QRail system, when properly assembled and installed, provides an integrated electrical bonding path, ensuring that
all exposed metal parts and the PV module frames are electrically connected. The QRail employs a number of features to
ensure reliable electrical connectivity.
Images 2.4.2 and 2.4.3 show the available current path(s) in the QRail system for standard (2 or more rails per row of
modules) and shared rail configurations, respectively.
Images 2.4.4 through 2.4.14 provide detail drawings of the labeled connection points.
Bonding and Fault Path
2.4.2 Standard confi guration bonding path (two rail system shown)
2.4.3 Shared confi guration bonding path
Bonding mid clamp
Internal or External bonding splice
Standard end clamp
Copper ground conductor
Bonding end clamp w/ WEEB-BMC
WEEB lug
Hidden end clamp