dji Aeroscope Mobile 사용자 설명서 - 페이지 3

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dji Aeroscope Mobile에 대해서도 마찬가지입니다: 사용자 설명서 (15 페이지)

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Lightning Protection

The DJI

AEROSCOPE

antenna module, power module, and Ethernet port. Aeroscope does not include a lightning

induction system, and should be installed within the protected region of another lightning

induction system. The protected region is calculated using the rolling sphere method.

The rolling sphere method assumes that an imaginary sphere of radius h

surface of a substation. The sphere rolls up and over (and is supported by) lightning masts,

shield wires, substation fences, and other grounded metallic objects that can provide

lightning shielding. A piece of equipment is said to be protected from a direct stroke if it

remains fully within the surface of the sphere.

For a simple scenario in which there is only one lightning rod standing on a flat surface, the

maximum distance that the Aeroscope can be placed from the lightning rod and remain

within the protected region is calculated by the following equation:

=√(h(2h

-h))-√(h

Where:

is the maximum distance the Aerescope can be placed from the lightning rod.

is the height of the protected object.

h is the height of the lightning rod.

is the rolling sphere radius. It depends on the lightning density and the protected matter

and is given in the following table in the Chinese standard.

Protection Level

Type 1

Type 2

Type 3

If Aeroscope is not under the protection of the nearest lightning rod, a designated lightning

induction system should be designed by a qualified professional.

Finally, be sure to note the following:

Ensure that rainwater cannot flow along the Antenna cable into the Aeroscope receiver.

If the pole is made of metal, the frame and the pole should be separated using insulation.

Indoor power outlets must have surge protection.

Indoor Ethernet outlets must have surge protection.

Step-by-Step Installation Guide

For permanent setups, the Aeroscope unit can be mounted anywhere that meets all

installation requirements, such as Lightning Protection, height restrictions, power connection,

and network connection. The most common installation scenario is to attach it to a pole on the

rooftop.

The standard procedure for pole-mounted scenarios is as follows:

stationary unit system includes surge protection modules in the

(2h

-h

))

Rolling Sphere Radius (m)

exists above the