Chapter 3
General safety instructions
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All personnel likely to be on a Transmitting Site shall be alerted to the dangers inherent
in transmitting antennas and dishes which are connected to TEL-MAR equipments.
These antennas emit radiofrequency radiation (non ionising). There is a high
concentration of power in the direction of the main beam of the transmitting antenna,
especially using high gain and / or high directivity antennas fed from high power
amplifiers.
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Every person on Transmitting Sites should be encouraged to take appropriate
precautions to avoid danger or injury to himself / herself and to other people; for
example by observing the following rules:
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Do not climb, or allow others to climb, a structure on which a transmitting antenna is
mounted without first ensuring that it is safe to do so and that the transmitter is
switched off and will remain so until personnel are off the structure.
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Do not climb over or through a working transmitting antenna under any circumstances.
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Do not look directly into an antenna from anywhere in the vicinity within the main beam
(or at all, if in doubt) and don’t use a telescope or binoculars; etc. for lining up with a
transmitting antenna when under power. This is to protect the eyes against radiation.
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Do not cross the main beam (principal lobe) of a transmitting antenna in its vicinity.
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Do not bring close to a transmitting antenna, equipment which is likely to be damaged
by electromagnetic radiation from the elements of the antennas themselves, and do not
make measurements when near to an antenna underpower.
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Certain components may contain substances which can cause a toxic hazard under
certain conditions; for example, beryllium oxide used in high power semiconductors.
Normally these components can be handled without significant risk, but broken
components are hazardous if particles are allowed to be absorbed by the human body.
Any parts of the body coming into contact with such particles should be washed
thoroughly with water and treated by a medical doctor.
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Disposal of faulty components (whether broken or not) shall be done with the
component inside a sealed container and under the supervision of an approved local
agency or company specialising in removal of toxic waste.
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For TEL-MAR equipments allowed in rack more than 5 units special care has to be
taken in handling and moving to avoid danger or injuries to personnel.
TEL-MAR assume no responsibility for injury to persons, animals or
damage to property, however caused, which stems from non observance
of any of the safety instructions and rules or procedures given above
Before making any maintenance of the equipment, remember to switch
off the unit and to verify the discharge of high voltage capacitors.
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