Appendix G - Power Cable Installation
Gyr
102
98-1031 Rev AA
Series IV Concentrator U and I Guide
Recommendations
When existing 105704-XXX cables are used, they must be terminated inside a junction or disconnect
box. The inner wires cannot be exposed until after the 105704-XXX cable enters the enclosure. Once
inside the box, connect the power leads to wires going to the mains per local practice. Connections to
the mains must use UV-stable wiring. As long as the wire is UV-stable and rated for outdoor use, the
wire model and manufacturer may be selected by the programs. Part number 18-1033 wire is
acceptable and recommended.
In published examples, Collector cables are shown going through conduit. Conduit is not required
for Concentrators, but the entrance to the junction box should be through a clamp at the bottom of
the junction box. Junction boxes do not have a part number and are available through local vendors.
As always, electrical connections need to meet the requirements of the local utility and local
ordinances.
The following diagram shows an installation using a junction box with a Concentrator. If
105704-XXX cable is used, then this installation procedure is required.
Figure G - 2. Suggested Power Termination
If the 105627-XXX cable is used, then the cable can go directly to the mains, provided drip loops are
made between the mains and the Concentrator. The drip loop at the point of attachment to the mains
should hang below the level of the point of attachment.
CONCENTRATOR
P
O
L
E
X
F
R
M
JUNCTION OR
DISCONNECT BOX
105704-XXX CABLE
UV
STABLE
WIRES
DRIP
LOOP
