Daktronics GENERIC GALAXY AF-6200 Series, Руководство пользователя

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Electrical Installation
6
Grounding methods must meet the provisions of all applicable local and national codes.
Inspect and verify all grounding methods meet the provisions of all applicable local and
national codes.
Proper grounding is necessary for reliable equipment operation and general electrical
safety. Failure to properly ground the display system may void the warranty, disrupt
operation, damage equipment, and cause bodily harm or death.
Local and national codes require the use of a power disconnect near the display. If
disconnect is not within direct line of sight of the display, provide a lockable disconnect
switch (knife switch) at the display location so all power lines can be completely
disconnected. Use a two-conductor disconnect so the hot line and the neutral can be
disconnected.
There are two considerations for power installation: new power installation and existing
power installation. These two power installations differ slightly, as described in the
following paragraphs. Refer to Figure 1 .
New Power Installation
The power cable must contain a separate earth-ground conductor. When using a
separate ground conductor, do not connect neutral to ground at the disconnect or at
the display. This would violate electrical codes and void the warranty.
Existing Power Installation
When a separate ground conductor is not available, connect the neutral to the earth-
ground at the disconnect, never at the display.
Figure 1: Power Installation