CUI Conductor

IEC/EN 62305-3 points out that in special cases the risk of step and touch voltage outside a building may be extremely high near the down conductors, although there is a lightning protection system in accordance with the current state of standardisation.
Special cases are, for example, if bare/uninsulated down conductors and lightning protection earth electrodes are installed near the entrance of sheltering areas of buildings with high visitor frequency, such as theatres, cinemas, shopping centres, etc. Buildings or structures with public access (e.g. shelters) which are particularly exposed (lightning endangered) may also require protection measures against step and touch voltage.

Protection against touch voltage
Touch voltage means a life-threatening voltage that affects a person who touches the down conductor while standing on the ground within a distance of about 1 m from the down conductor touches the down conductor. The current flows through the hand into the body and down to the feet (see Figure 1/2).
The hazardous area for people outside of a building is defined as an area of 3 m around the down conductor and from ground level up to a height of approx. 3 m.

Details

Figure 3: Structure of a CUI Conductor
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Figure 5: Detail of Figure 4
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Figure 6: Application in entrance area
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Figure 4: Rain test
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The dangerous area of touch and step voltages for living beings is defined as an area of approx. 3 m around the down conductor, from ground level up to a height of approx. 3 m.The CUI Conductor has a copper core and a high-voltage-resistant insulation.These conductors must:

  • have a impulse withstand voltage of 100 kV (1.2/50 µs)
  • prevent creeping sparkover even during rain

2 Products

Part No. 830208 CUI L 20 GR 3.5M

GTIN 4013364106116, Customs tariff No. (EU): 85389099, Gross weight: 3.27 kg, PU: 1.00 pc(s)

Images

Additional information

CUI Conductor, 3500 mm long
CUI Conductor for avoiding touch voltages on
down conductors.
Material of conductor: Cu
Material of insulation: XLPE
Diameter Ø conductor: 20 mm
Standard: EN 62561-2
Colour of conductor: light grey ●
Cross-section of core: 50 mm2
Total length: 3500 mm

Brand: DEHN
Type: CUI L 20 GR 3.5M
Part No.: 830208
or equivalent.

Certificates

 

Technical data

Material of conductor Cu
Material of insulation XLPE
Diameter Ø conductor 20 mm
Standard EN 62561-2
Colour of conductor light grey ●
Cross-section of core 50 mm2
Total length 3500 mm

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Part No. 830218 CUI L 20 GR 5M

GTIN 4013364106123, Customs tariff No. (EU): 85389099, Gross weight: 4.27 kg, PU: 1.00 pc(s)

Images

Additional information

CUI Conductor, 5000 mm long
CUI conductor for avoiding touch voltages on
down conductors.
Material of conductor: Cu
Material of insulation: XLPE
Diameter Ø conductor: 20 mm
Standard: EN 62561-2
Colour of conductor: light grey ●
Cross-section of core: 50 mm2
Total length: 5000 mm

Brand: DEHN
Type: CUI L 20 GR 5M
Part No.: 830218
or equivalent.

Certificates

 

Technical data

Material of conductor Cu
Material of insulation XLPE
Diameter Ø conductor 20 mm
Standard EN 62561-2
Colour of conductor light grey ●
Cross-section of core 50 mm2
Total length 5000 mm

Product 830218 was added to Notepad.

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Product 830218 was added to the cart.

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