Terex HI-RANGER TM Series, Руководство оператора

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TM SERIES
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ELECTRICAL INSULATION
Operation on or near energized lines is extremely hazardous unless proper OSHA and ANSI work rules are
followed. The operation of this Aerial Device in proximity to high voltage electrical lines involves several
hazards to the operator of the Aerial Device, ground personnel and bystanders on the ground. These
hazards are as follows:
1. Contact of the operator with a single energized line will allow current to pass through the operator's body
to ground by means of an all-metal boom structure, unless the operator is insulated from ground.
2. Contact of the operator with two energized lines or one energized line and a grounded conductor will
cause electrocution, even if the operator is insulated from ground by the Aerial Device.
IMPORTANT: Only caution and proper work practice on the part of the occupant(s) will protect
the occupant(s).
3. Contact of a metal section of the boom with a wire, below the insulation of the boom, will energize the
Aerial Device and the vehicle causing electrocution to ground personnel and bystanders standing on the
ground and touching the vehicle.
4. Contact of the boom with a wire may break the wire or burn the wire in two, which will cause a hazard to
ground personnel and bystanders below.
Some protection against Hazard No.1 is furnished by the fiberglass upper boom. When PROPERLY
MAINTAINED, the insulated boom protects platform personnel in case they were to contact a SINGLE
energized power line within the qualification voltage limit stamped on the nameplate. However, this
protection can be nullified by accumulation of dirt and moisture on or in the boom. Operator safety requires a
regular electrical testing program.
Some protection against interphase contact, Hazard No. 2, is offered by the platform liner. The platform liner
is used for interphase protection of the lower half of the body only. Only caution on the part of platform
personnel and use of proper protective equipment will protect the upper half of their body from this hazard.
Any conductive object in the platform liner, which protrudes above the liner, will eliminate any protection the
liner may offer.
Limited protection of ground personnel against contact of the steel elbow area or lower boom with an
energized line, Hazard No. 3, is offered by the insulated lower boom and a proper grounding system. The
lower boom insert, like the insulated upper boom, must be regularly tested and cleaned to ensure continued
safety. Contact with an energized line below the lower boom insert will energize the vehicle and the ground
around the vehicle. Anyone close to the vehicle may be injured. A ground cable to a suitable ground may
prevent damage and injury. Ensure ground cables are making good contact with the vehicle and ground rod
or neutral and are not coiled on reel or storage hooks. A properly grounded vehicle does not guarantee
protection for people on the ground. It’s purpose is to engage the line protection, fuse or breakers as quick
as possible to limit damage. A lethal voltage may still exist between the vehicle and ground.
The fiberglass upper boom, fiberglass lower boom insert and fiberglass platform,
including its components, do not protect the platform operator from injury in case
of contact between two energized lines, or between an energized line and a
grounded conductor.
Working around electrical power lines is covered by ANSI and OSHA Regulations.
To reduce danger to the operator and ground personnel or bystanders on the
ground, understand and follow all rules.
Ground personnel should never touch the Aerial Device, the vehicle or an attached
trailer while the Aerial Device is in operation near electrical power lines even
though the Aerial Device has an insulated boom and lower boom insert.
Avoid contact of any metal part or equipment below the insulated section of the
lower boom with an electrical power line. Serious injury or death could result.