Filter
Top Products
7.0 Electrical Installation
NOTICE: Use of the material contained in this document is subject to the warning on page Iv and the disclaimer
on page v of this document.
DOC012R02 AOC 15/50 User Manual Nov 2001
59
7.3 Control Box Connections
Wires should be run in a conduit to the control box based on convenience, safety and applicable
standards. Non-NEMA 4 electronic enclosures must be housed in a weatherproof service
structure. However, it is recommended that all enclosures be housed in a weatherproof structure
to facilitate maintenance in all weather conditions. Wires from the control box to the tower base
should run in a conduit. Rigid metal conduit should be buried to a minimum depth of 92 cm (36
inches) and approved non-metallic direct burial conduit, to a minimum depth of 46 cm (18
inches) or 61 cm (24 inches) for roadways. Refer to the National Electrical Code, International
Electrotechnical Commission standards and local inspectors for site specific requirements.
All wires between the control box, the dynamic brake capacitor box and the dynamic brake
resistor box must be properly contained in conduits and be terminated correctly in the control
box. When terminating wires in screw lugs, torque, release torque and retorque the lug screw to
ensure the wire will not pull out of the lug connection. See Appendix M for wire connections.
Figure 7-5 Control box at Kotzebue Electric Association
Photo Courtesy of
KEA