OBO Bettermann isCon Series Guida utente
03/2014 EN
isCon®
System instructions
© 2014BO BETTERMANN GmbH & Co. KG
Reprinting, even of extracts, as well as photographic or electronic reproduction are prohibited!
isCon® is a registered brand of OBO BETTERMANN GmbH & Co. KG
OBO isCon
®
System instructions
System instructions OBO isCon®EN | 3
Table of contents
Table of contents
1 About these instructions . . . . . . . . . . . . . . . . . . . . .5
1.1 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Using these instructions . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Types of safety information . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6 Basic standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 General safety information . . . . . . . . . . . . . . . . . . . .7
3 Product description . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Basic principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 isCon cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Insulated interception rods . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 System accessories for fastening . . . . . . . . . . . . . . . . . . . . 13
3.4.1 Interception rod stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4.2 Interception rod support for isFang mounting . . . . . . . . . . . . . . . . . . 16
3.4.3 Holder for the isCon cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5 System accessories for connection . . . . . . . . . . . . . . . . . . . 18
4 Planning an installation. . . . . . . . . . . . . . . . . . . . . 19
4.1 Schematic diagram of the isCon system . . . . . . . . . . . . . . . . 20
4.2 Calculating, checking and maintaining the separation distance . . . . 22
4.3 Cable lengths and lightning protection classes . . . . . . . . . . . . . 22
4.4 Installation in potentially explosive areas . . . . . . . . . . . . . . . . 24
4.5 Soft-covered roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.6 Installation in different wind speed zones . . . . . . . . . . . . . . . . 27
5 Installing the isCon system . . . . . . . . . . . . . . . . . . 29
5.1 Cutting and removing the insulation of the isCon cable . . . . . . . . 29
5.1.1 Removing the light grey protective jacket (isCon 750 LGR) . . . . . . . . . . . 29
5.1.2 Revealing the copper core for connection . . . . . . . . . . . . . . . . . . . . 30
5.2 Mounting the isCon connect connection element . . . . . . . . . . . . 31
5.3 Assembling the interception rod . . . . . . . . . . . . . . . . . . . . 33
5.3.1 Interception rod with internal isCon cable . . . . . . . . . . . . . . . . . . . . 33
5.3.2 Interception rod with external isCon cable . . . . . . . . . . . . . . . . . . . . 39
5.4 Fastening the interception rod in the interception rod stand . . . . . . 43
5.4.1 Mounting the concrete plinth . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4.2 Erecting the interception rod stand . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4.3 Fastening the interception rod in the interception rod stand . . . . . . . . . . . 46
5.5 Fastening the interception rod to pipes, a wall or T support . . . . . . 48
5.6 Routing the isCon cable . . . . . . . . . . . . . . . . . . . . . . . . 49
5.7 Attaching the potential connection . . . . . . . . . . . . . . . . . . . 50
5.7.1 Installing the potential connection on an insulated interception rod . . . . . . . 50
5.7.2 Installing the potential connection on the end of the isCon cable . . . . . . . . 53
5.7.3 Including the interception rod stand in the functional equipotential bonding . . . 55
5.7.4 Installing additional potential connections . . . . . . . . . . . . . . . . . . . . 55
5.7.5 Creating additional equipotential bonding in potentially explosive areas . . . . . 56
OBO BETTERMANN
4 | EN
Table of contents
6 Mounting variants . . . . . . . . . . . . . . . . . . . . . . . . 58
6.1 Separate lightning protection ring cable . . . . . . . . . . . . . . . . 58
6.2 Metallic roof attic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.3 Internal and external isCon cable . . . . . . . . . . . . . . . . . . . . 60
6.4 Lightning protection class I . . . . . . . . . . . . . . . . . . . . . . . 61
6.5 isCon cable included in the ring cable . . . . . . . . . . . . . . . . . 62
7 Checking the lightning protection system . . . . . . . . . . 63
8 Testing report for the OBO isCon system . . . . . . . . . . . .
9 Index of keywords . . . . . . . . . . . . . . . . . . . . . . . . 64
System instructions OBO isCon®EN | 5
About these instructions
1 About these instructions
1.1 Target group
These mounting instructions are intended for specialists, who are quali-
fied to erect lightning protection systems, e.g. lightning protection spe-
cialists. These specialists must know the lightning protection standards
applicable at the mounting location, as well as the generally recognised
rules of technology.
1.2 Using these instructions
• These instructions are based on the standards valid at the time of
compilation (March 2014).
• Before commencing work, read these instructions through once com-
pletely. In particular, please observe the safety instructions.
• Keep all the documents supplied with the isCon system safe, so that
the information is available should you need it.
• We will not accept any warranty claims for damage caused through
non-observance of these instructions.
• Regional and seasonal factors were not taken into account.
• To find out more about planning and installation using the OBO isCon
system, we recommend a comprehensive training course.
• You can find more information on the OBO isCon system at www.
iscon.obo.de.
• We recommend registering at www.iscon.obo-bettermann.com to
receive the OBO isCon newsletter to ensure you are always kept up to
date. The newsletter provides information about updates on instruc-
tions, new products and additional points of interest regarding the
OBO isCon system.
1.3 Types of safety information
WARNING
Type of risk!
Shows a possibly risky situation. If the situation is not avoided, then death
or serious injury may result.
CAUTION
Type of risk!
Shows a possibly risky situation. If the situation is not avoided, then light
or minor injury may result.
ATTENTION
Type of risk!
Shows a possibly hazardous situation. If the situation is not avoided, then
damage to the product or the surroundings may occur.
Note! Indicates important information or assistance!
www.iscon.obo.de
OBO BETTERMANN
6 | EN
About these instructions
1.4 Correct use
The OBO isCon system is a lightning protection system for the external
lightning protection of buildings and systems, which, in the case of direct
lightning strikes, can arrest the lightning surge currents into the earth,
thus protecting the building, the system and people against the impacts of
the lightning strike, e.g. fires, mechanical building damage and possibly
lethal voltages and current pulses.
The system is not designed for any other purpose than the one described
here. If the system is installed and used for another purposes, any liabil-
ity, warranty or damage claims shall be rendered null and void.
If you require information on the use of the OBO isCon system for some-
thing other than under the conditions of use described here, please speak
to your OBO contact.
1.5 Declaration of conformity
Lightning protection components are not subject to an EC directive.
Instead, OBO makes the manufacturer's declarations of conformity avail-
able for the appropriate components of the lightning protection systems.
These declarations of conformity certify the agreement with the named
standards and stored documents, but do not, however, contain any guar-
antee of properties.
You can find individual proofs for lightning protection components on the
OBO web pages (www.obo-bettermann.com).
1.6 Basic standards
Comply with the following standards*, amongst others, during the plan-
ning, mounting, maintenance and repair of lightning protection systems:
• DIN EN 62305-1 (IEC 62305-1, VDE 0185-305-1), Protection against
lightning Part 1:
General principles
• DIN EN 62305-2 (IEC 62305-2, VDE 0185-305-2), Protection against
lightning Part 2: Risk management
• DIN EN 62305-3 (IEC 62305-3, VDE 0185-305-3), Protection against
lightning - Part 3:
Protection of structural facilities and persons
• DIN EN 62305-4 (IEC 62305-4, VDE 0185-305-4), Protection against
lightning - Part 4:
Electrical and electronic systems within structures.
• DIN EN 62561-1 (IEC 62561-1, VDE 0185-561-1), Lightning protection
system components – Part 1: Requirements for connection compo-
nents
• DIN EN 62561-2 (IEC 62561-2, VDE 0185-561-2), Lightning protection
system components – Part 2: Requirements for conductors and earth
electrodes
• DIN EN 62561-4 (IEC 62561-4, VDE 0185-561-4), Lightning protection
system components – Part 4: Requirements for conductor fasteners
• DIN 18014, Foundation earthers
* Status of standards: March 2014
System instructions OBO isCon®EN | 7
General safety information
2 General safety information
Observe the following general safety information on handling the OBO
isCon system:
• The work may only be carried out by lightning protection specialists,
who have been trained for the installation of standard-conformant
lightning protection systems.
• If there is a lightning strike, lethal currents can flow through the light-
ning protection system. Never work on the elements of the lightning
protection system during a thunderstorm or if there is the risk of one.
• Lethal voltages can occur during the handling of electrical resources.
Therefore, never work on parts through which power is flowing. Wear
suitable protective clothing and comply with all the required safety
guidelines!
• To install the OBO isCon system, use only components of the OBO
product range, as otherwise there is no guarantee that safe installation
is possible.
• The jacketing of the black OBO isCon cable may not be cut or dam-
aged. An interruption in the external black conductive layer will prevent
the cable from functioning.
• After installation, remove any metallic chips from the connection area,
in order to prevent a short circuit between the connection element and
potential connection if there is a lightning strike. Otherwise, the func-
tion of the insulated cable is not guaranteed.
• Only the jacketing of the grey OBO isCon cable may be painted a dif-
ferent colour. It does not possess any electrical properties which could
be at risk from paint.
• The production method means that metallic objects may have areas
with sharp edges. Wear suitable protective gloves to avoid cutting
injuries.
• When erecting function maintenance systems, take the necessary fire
protection regulations into account. These instructions do not mention
any fire protection standards which are to be complied with. Read the
OBO fire protection guide (article number: 9134859) for more informa-
tion.
OBO BETTERMANN
8 | EN
Product description
3 Product description
3.1 Basic principles
Without any additional countermeasures, the high voltage pulses which
occur when there is a direct lightning strike will cause arcing to insula-
tion surfaces. This effect is termed a creep flashover. When the so-called
creep discharge inception voltage has been exceeded, surface discharge
is initiated, which can bridge a gap of several metres. To avoid dangerous
arcing between conductive parts (electrical systems, pipelines, etc.), the
maintenance of the separation distance is a key requirement when plan-
ning and implementing a lightning protection system.
These days, the roof level of building complexes is used as an installa-
tion area for air-conditioning, ventilation, transmission and energy collec-
tion systems, meaning that the structural features may be in the way of
the required spacing between the interception systems and the electrical
installations.
The isCon insulated lightning protection system is used to maintain the
required separation distance. After the first potential connection behind
the connection element on the air-termination rod, the isCon cable re-
flects an equivalent separation distance of up to 0.75 metres in the air or
1.5 metres in solid matter. This means that installation is possible directly
on metallic and electrical structures. If there is a direct lightning strike,
the incoming energy is arrested through the isCon cable to the building's
earthing system. There is no direct arcing between the arrestor and the
building to be protected.
The isCon system has a tested arresting capacity of 150 kA lightning
surge current (10/350 μs). It primarily consists of the following compo-
nents:
– isCon cable
– Insulated interception rods
– System accessories for fastening (interception rod stand, support and
holder)
– System accessories for connection
3.2 isCon cable
The insulated isCon cable is free from surface discharge, is resistant
to high voltages and is ignition-free. According to
DIN EN 62305-3/VDE
0185-305-3/IEC 62305-3
, it replaces a separation distance of 0.75 metres
in the air and 1.5 metres in the case of solid materials. It is equipped
with an external semi-conductive jacket, allowing it to limit high lightning
voltage pulses against a reference potential, by creating a connection be-
tween the external semi-conductive jacket and the building's equipotential
bonding, which is not energised with lightning current, in the area of the
connection element.
The isCon cable is flame-resistant according to DIN EN 60332-1-2, is
weatherproof, halogen-free and consists of a twisted copper core, sur-
rounded by insulation layers of meshed polyethylene (VPE) and the ag-
ing-resistant material ethylene vinyl acetate (EVA). It is suitable for routing
in external areas and can be routed on roofs, or in walls, in concrete, in
facade installations or in buildings.
System instructions OBO isCon®EN | 9
Product description
The isCon cable is sold by the metre and in two variants:
– isCon 750 SW with black jacketing
– isCon 750 LGR with additional external light grey protective jacket.
The light grey isCon cable is also suitable for routing in the earth. It can
also be painted, e.g. with the paint of the facade. As the external light
grey protective jacket is non-conductive, it must be removed in the contact
areas.
35 mm²
Ø 23 mm
Ø 26 mm
isCon 750 LGR
1
2
3
6
5
4
Figure 1: Schematic diagram of the isCon cables (black and light grey)
Legend:
1 Round cable, multi-wire, 35 mm2, Cu
2 Inner conductive layer (VPE)
3 Insulation (VPE)
4 Outer conductive layer (VPE)
5 External jacket with low conductivity (EVA)
6 External jacket, light grey (only for isCon 750 LGR)
Type isCon 750 SW isCon 750 LGR
Colour Black Light grey
Equivalent separation distance, air ≤ 750 mm ≤ 750 mm
Equivalent separation distance, solid materials ≤ 1500 mm ≤ 1500 mm
Equivalent separation distance, mixed materials See DIN EN 62305-3 Insert 1
External diameter 23 mm 26 mm
Round cable, multi-wire, Cu 35 mm235 mm2
Cable weight approx. 649 kg/km approx. 868 kg/km
Temperature range for routing min. -5 °C, max. 40 °C min. -5 °C, max. 40 °C
Operating temperature max. 70 °C max. 70 °C
Bend radius (min. 15 x D) min. 345 mm min. 390 mm
Tensile strength 1 750 N 1 750 N
Routing in the earth No Yes
Can be painted No Yes
Weathering resistance Ozone resistant according to DIN EN 60811-2-1 Section 8
Sunlight Resistance Test according to UL 1581 Section 1200
Coldness impact resistance according to-DIN EN 60811-1-4
Section 8.5
Tab. 1: Technical data of the isCon cables 750 SW and 750 LGR
OBO BETTERMANN
10 | EN
Product description
The isCon cable may only be connected to interception rods or forwarding
systems using system-tested connection elements (see also „5.2 Mount-
ing the isCon connect connection element“ on page 31).
isCon
1
2
Figure 2: isCon cable in the interception rod with internal connection element
1 (type isCon IN connect) and isCon connection element 2 (type
isCon connect)
Altri manuali per isCon Series
1
Questo manuale è adatto per i seguenti modelli
2
Indice
Altri manuali OBO Bettermann Elettricità industriale
