4/5 Vỹ N. 4 years ago on Google
The
tower
is
built
as
one
large
steel
framework
construction,
similar
to
the
Eiffel
Tower
in
Paris.
The
150-metre-high
(490
ft)
and
approximately
600-metric
ton
radio
tower
was
originally
planned
strictly
as
a
transmitting
tower,
but
later
additions
included
a
restaurant
at
a
height
of
approximately
52
m,
and
observation
deck
at
a
height
of
approximately
125
m.
Visitors
reach
the
restaurant
and
the
observation
deck
by
an
elevator
which
travels
up
to
6
meters
per
second.
The
radio
tower
has
two
very
notable
structural
characteristics.
First,
it
sits
on
a
square
surface
area
merely
20
meters
to
a
side.
Its
ratio
of
surface
area
to
height
is
1:6.9.
For
comparison,
the
Eiffel
Tower
sits
on
a
square
129
meters
to
a
side,
giving
surface-area-to-height
ratio
of
1:2.3.
Second,
the
radio
tower
is
probably
the
only
observation
tower
in
the
world
standing
on
porcelain
insulators.
It
was
designed
as
the
support
tower
for
a
T-antenna
for
medium
wave,
and
the
insulators
were
intended
to
prevent
the
drain
of
the
transmitting
power
down
through
the
tower
itself.
However,
this
was
impractical,
because
visitors
would
have
been
vulnerable
to
massive
electric
shocks,
so
the
tower
was
later
grounded
via
its
elevator
shaft.
The
insulators
used
were
manufactured
in
the
Koeniglich
Preussische
Porzellanmanufaktur