Daewoo Mega 500-V, Shop Manual

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S0103010K
Page 20 Wheel Loader Safety
AVOID HIGH-VOLTAGE CABLES
Serious injury or death can result from contact
or proximity to high-voltage electric lines. The
bucket does not have to make physical contact
with power lines for current to be transmitted.
Use a spotter and hand signals to stay away
from power lines not clearly visible to operator.
Use these minimum distances as a guideline only. Depending upon voltage in line and atmospheric
conditions, strong current shocks can occur with boom or bucket as far away as 4 - 6 m (13 - 20 ft) from
power line. Very high voltage and rainy weather could further decrease that safety margin.
NOTE:
Before starting any type of operation near power lines (either above ground or buried
cable-type) you should always contact power utility directly and work out a safety plan with
them.
BEFORE STARTING TO DIG, CONTACT AUTHORITIES
Below ground hazards also include natural gas lines, water mains, tunnels and buried foundations. Know
what’s underneath work site before starting to dig.
BE AWARE OF HEIGHT OBSTACLES
Any type of object in vicinity of boom could represent a potential hazard, or cause operator to react
suddenly and cause an accident. Use a spotter or signal person working near bridges, phone lines, work
site scaffolds, or other obstructions.
USE CARE ON LOOSE SUPPORT
Working heavy loads over loose, soft ground or uneven, broken terrain can cause dangerous side load
conditions and possible tipover and injury. Travel without a load or balanced load may also be hazardous.
If temperatures are changing, be cautious of dark and wet patches when working or traveling over frozen
ground. Stay away from ditches, overhangs and all other weak support surfaces. Halt work and install
support mats or blocking if work is required in an area of poor support.
VOLTAGE MINIMUM SAFE
DISTANCE
6.6 kV 3 m (9’ 10'')
33.0 kV 4 m (13’ 1'')
66.0 kV 5 m (16’ 5'')
154.0 kV 8 m (26’ 3'')
275.0 kV 10 m (32’ 10'')
Figure 18