Installation Of Hvi - dehn HVI power Conductor Installation Instructions Manual

2. Installation of HVI

Installation of HVI power Conductors in Ex zones 1 and 21
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2.1 Installation of the HVI
holder distance of 500 mm; wall distance of 85 mm
Earthed metal structures are e.g. conductively interconnected metal façades or steel structures (lattice
structures) of grain silos.
If metal conductor holders of type HVI
(Part No. 275 450) and a maximum holder distance (HD) (installation distance) ≤ 500 mm (see Fig. 1)
are used, discharges can be reliably prevented.
Figure 1
Installation in parallel to an earthed metal façade: holder distance of 500 mm; wall distance of 85 mm
power Conductors in hazardous areas
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power Conductor in parallel to an earthed metal structure,
power Ex W85 holder with a wall distance (WD) of 85 mm
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Ø 27 mm
Conductor holder of type HVI
W85 holder for HVI power Conductors
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(Part No. 275 450) (WD of 85 mm)
power Ex
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