4
Publication No. 1637/ UPDATE
07
.1
9
Mat-No. 3003103
Note:
Solvents in paints and lacquers quickly evaporate if a thin coat is applied and do not damage the
plastics.
It is not allowed to use the
HVI
light Conductor
in Ex zone 1 and 21.
The function of the
HVI
light Conductor
is to maintain the separation distance. Due to its
design, it does not have a magnetic shielding effect. Induction effects in secondary
conductors/loops must be observed. If required, surge protection measures must be taken.
For application-specific questions, please contact the relevant sales team or the DEHN
representa
tive in your country.
Further information on the component portfolio of the
HVI
light Conductor system
can be
found in our brochure No. 212, our Lightning Protection/Earthing catalogue or at www.dehn-
international.com (“Products”).
The
HVI
light Conductor
system
component portfolio consists of a
HVI
light Conductor
and a
range of connection and fixing elements matched to this conductor.
Special know-how is required to design and install the
HVI
light Conductor
.
2. Application/design
HVI
light Conductors
are high-voltage-resistant, insulated down conductors with a voltage-controlled
sheath (see Table 1, page 5).
They are typically used as insulated down conductors for lightning protection systems to maintain the
separation distance in accordance with IEC 62305-3. At first, the separation distance must be calculated as
described in chapter 6.3 of the IEC 62305-3 standard, with a material factor k
m
= 1 in air or k
m
= 0.5 for
solid material. It must be checked whether this calculated separation distance can be implemented by means
of the equivalent separation distance of the
HVI
light Conductor
(see technical data, Table 1):
Calculated separation distance ≤ equivalent separation distance.
The length required for calculating the separation distance
„s“
is measured from the head piece to the next
lightning equipotential bonding level, e.g. the earth-termination system or connection point.
