For EMF radiation
(Effective
from 01.08.2013)
*******
1.
Instructions/guidelines have been issued to
the TERM Cells for auditing the RF radiations from BTS for compliance to the
prescribed norms. Following are additional guidelines to TERM Cells in the
matter.
2.
With a view to strengthen monitoring and compliance of safety aspects /
provisions in regard to radio frequency emissions from mobile towers, TERM
Cells may take the following also into account while conducting their audits
for the purpose of ensuring that all general public areas are within safe EMF
exposure limits as prescribed by DoT.
·
In case of both ground based towers & roof top towers, there
shall be no building right in front of the antenna(e), of equivalent height taking into account the tilt of the lowest antenna on tower as
per details in the table below.Further, the antennae at the same height only
are to be counted, as the beam width of the mobile antennae, in the vertical direction,
is very narrow.
|
Number of antenna(e)pointed in the same direction
|
Building/Structure safe distance from the antenna(e) at the same
height
(in meters)
|
|
1
|
20
|
|
2
|
35
|
|
4
|
45
|
|
6
|
55
|
·
The distance
figures in the above table are based on empirical estimation considering that
all the antennae are emitting at their maximum RF power of 20 Watts and exactly
in the same direction with same height (a worst case scenario). In practice,
the values of safe distance of buildings will depend upon actual deployment
scenarios and mostly, may be far less than depicted above.
3.
Wall
Mounted/Pole mounted Antenna:
·
Wherever the
antennae are mounted on the wall of building or pole on/along the road,their
height should be at least 5 meters above ground level /road level. However,
such installations will have to comply with the radiation limits.
·
As far as safe
distance of buildings from antenna is concerned, guidelines as given above will
apply.
******
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