Atlas Copco HiLight H4 Kd ESF, Instruction Manual

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3.3.2 Outdoor installation
– Place the light tower on a horizontal, even and
solid floor. Check the levels on top of the light
tower to ensure its level position.
– The light tower should be kept with the doors
closed, in order to avoid the ingress of water and
dust. Dust ingress reduces the lifetime of filters
and may reduce your light tower's performance.
– Check that the engine exhaust is not directed
towards people.
– Locate the rear end of the light tower upwind,
away from contaminated wind streams and walls.
Avoid re-circulation of exhaust air from the
engine. This causes overheating and engine power
decrease.
– Leave enough space for operation, inspection and
maintenance (at least 1 meter at each side).
– Check that the inner earthing system is in
compliance with the local legislation.
– Use PARCOOL EG for the engine cooling
system.
– Use a cable of suitable section to connect the PE
terminal to an earth plate that can ensure an earth
resistance suited to the characteristics of the light
tower.
– Check that the cable end of the earth pin is
connected to the earth terminal.
3.4 Connecting the light tower
3.4.1 Precautions for non-linear and
sensitive loads
The most common non-linear loads are thyristor/
rectifier-controlled loads, such as convertors
supplying voltage to variable speed motors,
uninterruptable power supplies and Telecom
supplies. Gas-discharge lighting arranged in single-
phase circuits generate high 3rd harmonics and risk
for excessive neutral current.
Loads most sensitive to voltage distortion include
incandescent lamps, discharge lamps, computers, X-
ray equipment, audio amplifiers and elevators.
Consult Atlas Copco for measures against the adverse
influence of non-linear loads.
The light tower is wired for a TN-
system to IEC 364-3, i.e. one point in
the power source directly earthed -
in this case the neutral. The exposed
conductive parts of the electric
installation must be directly
connected to the functional earth.
Non-linear loads draw currents with
high contents in harmonics, causing
distortion in the wave form of the
voltage generated by the alternator.
00_00_HiLight H4_EN.book Page 26 Monday, April 18, 2016 2:10 PM