Electrocution Hazards; Minimum Approach Distance (M.a.d.) - JLG TOUCAN 12E Operation And Safety Manual

SECTION 1 – SAFETY PRECAUTIONS

Electrocution Hazards

• This machine is not insulated and does not provide pro-
tection from contact or proximity to electrical current.
• Maintain distance from electrical lines, apparatus, or any
energized (exposed or insulated) parts according to the
Minimum Approach Distance (MAD) as shown in Table
1-1.
• Allow for machine movement and electrical line sway-
ing.
• Maintain a clearance of at least 3 m (10 ft.) between any
part of the machine and its occupants, their tools and
their equipment from any electrical line or apparatus
carrying up to 50 000 volts. A 0,3 m (1 ft.) additional
clearance is required for every additional 30 000 volts or
less.
1-6
Table 1-1. Minimum Approach Distance (M.A.D.)
Voltage Range
(Phase to Phase)
0 to 50 kV
Over 50 kV to 200 kV
Over 200kV to 350 kV
Over 350 kV to 500 KV
Over 500 kV to 750 kV
Over 750 kV to 1000 kV
NOTE:
This requirement shall apply except where employer, local or
governmental regulations are more stringent.
DO NOT MANEUVER MACHINE OR PERSONNEL INSIDE PROHIBITED ZONE
(MAD). ASSUME ALL ELECTRICAL PARTS AND WIRING ARE ENERGIZED
UNLESS KNOWN OTHERWISE.
• The minimum approach distance may be reduced if
insulating barriers are installed to prevent contact and
the barriers are rated for the voltage of the line being
guarded. These barriers shall not be part of (or attached
to) the machine. The minimum approach distance shall
– JLG Lift–
MINIMUM APPROACH DISTANCE
in Meters (Feet)
3 (10)
5 (15)
6 (20)
8 (25)
11 (35)
14 (45)
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