Nautel NX3, Руководство по установке

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NX5/NX3 INSTALLATION MANUAL CONNECTING AC POWER
VERSION 3.1 2021-04-22 PAGE 2.4.1
SECTION 2.4: CONNECTING AC POWER
To connect ac power to the transmitter, perform the following steps:
1. Switch off and lock out the main ac power at the service entrance.
2. Select the appropriate wire size for your main ac power cables. See the NX5/NX3 Pre-Installation
Manual for assistance. Ensure the ground wire is insulated, so it does not contact the transmitter
cabinet at any location other than the safety ground connection.
3. Route the main ac power cables in a suitable conduit, from the ac disconnect switch to the top or
bottom of the transmitter, depending on your desired entry point.
NOTE
: Bottom entry requires a
cable trench under the transmitter.
4. Prepare the desired ac input entry hole as follows:
 For top entry, punch the appropriate size hole in the ac entry plate as follows (see Figure 2.4.1
on page 2.4.3 ):
– Remove the ac entry plate from the top of the transmitter. It is secured using four M4 screws and
has a pre-cut, centered 3/8-inch diameter hole.
– Use a chassis punch tool (e.g., Greenlee, etc.) to punch the desired size hole in the ac entry plate.
Make sure the ac input cables will pass safely through the hole. If necessary, you can remove the
plate completely to gain access to a smaller, rectangular hole.
– Install the conduit termination on the ac entry plate, if desired.
– Re-install the ac entry plate on top of the transmitter using four M4 screws.
 For bottom entry, remove the hole plug from the bottom ac input entry hole (2-inch diameter,
see
Figure 2.4.1 on page 2.4.3 ) or carefully drill the appropriate size hole in the hole plug.
NOTE:
If you are using an ac conduit, do not ground it to the transmitter cabinet’s chassis.
WARNING! ENSURE THAT WIRING SIZES ARE APPROPRIATE. AC WIRING
MUST BE INSTALLED BY A QUALIFIED, LOCALLY-CERTIFIED ELECTRICIAN.
DANGER! ENSURE AC POWER IS DISCONNECTED AND LOCKED OUT AT THE
SOURCE BEFORE PROCEEDING .