DEHN protects.
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
1
Lightning Protection Standard
© 2014 DEHN + SÖHNE / protected by ISO 16016
International Electrotechnical
Commission (IEC)
Common Ground for International Trade
© 2014 DEHN + SÖHNE / protected by ISO 16016
Lightning protection standard
IEC 62305:2010
“Protection against lightning"
IEC 62305
Part 1
General
principles
Part 2
Risk
management
Part 3
Physical damage to
structures and life hazard
Part 4
Electrical and
electronic
systems within
structures
SS 555 : 2018
Part 1: 85 pages
Part 2: 101 pages
Part 3: 179 pages
Part 4: 99 pages
© 2014 DEHN + SÖHNE / protected by ISO 16016
20.02.13 / 6004_E_1
IEC 62561
Standard for LPS Components
IEC 62561 deals with the requirements and tests for lightning protection
system components (LPSC) used for the installation of a lightning
protection system (LPS) designed and implemented according to IEC
62305 series of standards.
IEC 62561 consists of the following parts, under the general title
Lightning protection system components (LPSC):
IEC 62561-1: Requirements for connection components
IEC 62561-2: Requirements for conductors and earth electrodes
IEC 62561-3: Requirements for isolating spark gaps (ISG)
IEC 62561-4: Requirements for fasteners
IEC 62561-5: Requirements for earth electrode inspection housings and
earth electrode seals
IEC 62561-6: Requirements for lightning strike counters (LSC)
IEC 62561-7: Requirements for earth enhancing compounds
© 2014 DEHN + SÖHNE / protected by ISO 16016
BCA Circular
Ref : APPBCA-2018-09 (31 Oct 2018)
© 2014 DEHN + SÖHNE / protected by ISO 16016
IEC 62305 / SS 555-3
© 2014 DEHN + SÖHNE / protected by ISO 16016
IEC 61643
Standard for SPD and SPD Application
IEC 61643-11:2011 (EN 61643-11:2012)
Surge protective devices connected to low-voltage power distribution
system. Part 1: Performance requirements and testing methods
IEC 61643-12
Surge protective devices connected to low-voltage power distribution
system. Part 12: Selection and application principles
IEC 61643-21
Surge protective devices connected to telecommunications and
signalling networks. Part 21: Performance requirements and testing
methods
IEC 61643-22
Surge protective devices connected to telecommunications and
signalling networks. Part 22: Selection and application principles
© 2014 DEHN + SÖHNE / protected by ISO 16016
8
IEC 616430-1 : 2005
Withdrawn
© 2014 DEHN + SÖHNE / protected by ISO 16016
9
IEC 62305 / SS 555-4
© 2014 DEHN + SÖHNE / protected by ISO 16016
External Lightning Protection System (LPS)
SS 555-1 : Foreword
Ref.: AS/NZS 1768:2007
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External Lightning Protection System (LPS)
SS 555-1 : Foreword
ESE = methods for artificially increase the range
DAS = methods capable of modifying the natural weather phenomena
In the National Foreword, there is an important paragraph that gives directive
that ESE and DAS cannot be used as primary design.
For primary design, always stick to the three methods described in IEC 62305-3.
© 2014 DEHN + SÖHNE / protected by ISO 16016
IEC 62305-3:2010
5. External lightning protection system
5.2 Air-termination systems
5.2.2 Positioning
Air-termination components installed on a structure shall be located at corners,
exposed points and edges (especially on the upper level of any facades) in
accordance with one or more of the following methods.
Acceptable methods to be used in determining the position of the airtermination system include:
➢ the protection angle method;
➢ the rolling sphere method;
➢ the mesh method.
The rolling sphere method is suitable in all cases.
The protection angle method is suitable for simple-shaped buildings but it is
subject to limits of air-termination height indicated in Table 2.
The mesh method is a suitable form of protection where plane surfaces are to be
protected.
© 2014 DEHN + SÖHNE / protected by ISO 16016
16.03.13 / 6020_E_1
Not recognise Non-conventional LPS (ESE2, CTS3 ,DAS4)
ESE “Early Streamer Emitter”
or
CTS “Charge Transfer Systems”
or
DAS “Dissipation Arrays”
© 2014 DEHN + SÖHNE / protected by ISO 16016
Not recognise non-conventional LPS
Source: http://www.ground.co.kr/PGS_forum/forum_20090818.html, 13-11-14
© 2014 DEHN + SÖHNE / protected by ISO 16016
Charge Transfer System - Principle
Idea:
Discharging the thunderstorm cloud before even a
lightning strike could happen.
© 2014 DEHN + SÖHNE / protected by ISO 16016
Early Streamer Emission (ESE) Devices (I)
Picture: Cirprotec
Idea:
Launching an upward leader earlier than conventional systems.
This „time advantage“ can be then converted to an extended
virtual height of the physical length of the air termination rod.
© 2014 DEHN + SÖHNE / protected by ISO 16016
Picture: Erico
Damage to buildings with ESE air terminations
Kuala Lumpur, (byHartono and Robiah)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Damage to buildings with ESE air terminations
Kuala Lumpur, (by Hartono and Robiah)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Damage to buildings with ESE air terminations
Kuala Lumpur, (by Hartono and Robiah)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Damage to buildings with ESE air terminations
Kuala Lumpur, (by Hartono and Robiah)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Damage to buildings with ESE air terminations
Kuala Lumpur, (by Hartono and Robiah)
© 2014 DEHN + SÖHNE / protected by ISO 16016
SS 555 Part 1 & 2
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DEHN Asia Lightning protection seminar
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Introduction
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24
Lightning Flash Density
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25
Overview of the risk components RX
RB
RA
RC
S1
RZ
Rx
S4
S2
RM
S3
RW
© 2014 DEHN + SÖHNE / protected by ISO 16016
RV
RU
DEHNsupport – Risk analysis
19.07.13 / 5762_E_1
DEHN Concept
Risk Management
Risk management for structures and
buildings according to IEC/EN 62305-2*
Four different categories are distinguished
in a risk analysis:
• Risk R1 : Loss of human life
• Risk R2 : Loss of service to the public
• Risk R3 : Loss of cultural heritage
• Risk R4 : Loss of economic value
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Concept
15.06.2016 / 5604_E_1
Risk Assessment
Zoning
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DEHN Asia Lightning protection seminar
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Risk Assessment
Zoning
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DEHN Asia Lightning protection seminar
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Risk Assesment
Type of Loss
10 -1 (0.1) : Hospital , Hotel , School , Civic
Building
•
•
•
•
•
•
•
Civic Building = Public Building
Gymnasiums , Sports Stadiums , Swimming Pools
Shopping Centres, departments Stores
Railway Stations , airports , Bus Station
High-rise building
Blocks of flats (multi story)
Police Stations , fire departments, ambulances
5 x 10 -2 (0.05) : Public Entertainment ,
Church Museum
•
•
•
•
Agriculture buildings
Shelters, carparks
Single family house
Two-family houses (one or 2 story)
2 x 10 -2 (0.02) : Industrial , commercial
•
© 2014 DEHN + SÖHNE / protected by ISO 16016
Industrial (non-explosive)
DEHN Asia Lightning protection
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Risk Assessment
Reduction Factor
Whole Building/Structure :
• Low Risk: Semi – D* , Town House* ,
Open Space Car Park , Shelters , Bus
Stops
•
High Risk: Library , Multi Story Car
Park , Library
By Zones :
• High Risk : Kitchen , Hallway (if it is
carpeted – eg : Hotel)
• Low Risk : Dining Area
Reference made from reports from Canada , Europe & New Zealand
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection
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Risk Assesment
Implementation - SPD
From the RA Requirement of SPD requirement is reflected in :
•
pEB:
Lightning equipotential bonding : Equipotential bonding for LPL –
o By implementation Refers to the Mainboard
•
Surge Protection LPL
o By implementation usually refer to the respective Zone (Sub Board) – eg : Guard house , server room , residential
etc…
© 2014 DEHN + SÖHNE / protected by ISO 16016
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Risk Assessment
Result
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DEHN Asia Lightning protection
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SS 555 Part 3
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DEHN Asia Lightning protection seminar
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Thickness of Bonding Material
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DEHN Asia Lightning protection
35
Annex E
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DEHN Asia Lightning protection seminar
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DEHN Asia Lightning protection seminar
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IEC 62305:2010-2012, Part 3
Physical Damage and Life Hazard
Lightning Protection System
© 2014 DEHN + SÖHNE / protected by ISO 16016
lightning equipotential
bonding
separation distances
earth-termination system
down-conductor system
air-termination system
as per IEC 62305-3
38
IEC 62305-3:2010
6.3 Electrical insulation of the external LPS
6.3.1 General
Electrical insulation between the air-termination or the down-conductor and the
structural metal parts, the metal installations and the internal systems can be
achieved by providing a separation distance, s, between the parts. The general
equation for the calculation of s is given by:
ki depends on the selected class of LPS (see Table 10);
km depends on the electrical insulation material (see Table 11);
kc
s = ki • ⎯ • l
km
kc depends on the (partial) lightning current flowing on the airtermination and the down-conductor (see Table 12 and
Annex C);
l
is the length, in metres, along the air-termination and the
down conductor from the point, where the separation distance
is to be considered, to the nearest equipotential bonding point
or the earth termination (see E.6.3 of Annex E).
NOTE The length l along the air-termination can be disregarded in structures
with continuous metal roof acting as natural air-termination system.
© 2014 DEHN + SÖHNE / protected by ISO 16016
International Workshop 2015-07
04.08.14 / 6045_E_1
Demonstration test „Proximity“
Down conductor (copper)
Video (slow motion)
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Lightning current distribution at the cell tower
Solution with spacer and HVI®Conductor
air-termination rod
GRP supporting tube
spacer
aluminium
supporting tube
air-termination rod
HVI®Conductor
© 2014 DEHN + SÖHNE / protected by ISO 16016
Lightning effects on cell sites
12.06.15 [20150612] / 9925_E_10
Demonstration test „Proximity“
High voltage-resistant, isolated down conductor
Video (slow motion)
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Technical Trend of External LPS
Japan
• Conventional – non-isolated LPS
• Reinforcement suffer flash over ,
causes concrete chipping
• Higher probability for high rise
building
• Reinforcement system as part down
conductor is recommended
Japan Science and Technology Agency (JST)
嶋田章 - ㈱村田電機製作所
Murata Electric Manufacturing Co., Ltd. (1913)
Ref.: Insert text
© 2014 DEHN + SÖHNE / protected by ISO 16016
Flash Over Incident
Hilton , Kuala Lumpur , Malaysia
Hartono’s Respond to ILPA Posting
Z. A. Hartono and I. Robiah (Malaysia)
Senior Members IEEE (USA) ,
Ref.: Insert text
© 2014 DEHN + SÖHNE / protected by ISO 16016
IEC 62305:2010-2012, Part 3
Physical Damage and Life Hazard
Lightning Protection System
© 2014 DEHN + SÖHNE / protected by ISO 16016
lightning equipotential
bonding
separation distances
earth-termination system
down-conductor system
air-termination system
as per IEC 62305-3
45
Minimum Thickness
Air Termination
*Special attention to be paid for combustible or flammable material –
ensuring temperature rise of inner surface does not constitute a danger
© 2014 DEHN + SÖHNE / protected by ISO 16016
46
Air Termination
• Height of Person 2.5m must take into consideration
• To be Separated/Insulated from touch Potential
❖ Attention to be paid for accessible Air Termination
• Side Flash @ 45m
• Corners , edges & Parapet walls - Metal Capping
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Methods for positioning of air termination systems
mesh size M
h2
air termination rod
radius of
rolling sphere
1 2
down
conductor
h1
earth-termination
system
protection class radius of rolling sphere
maximum building height
© 2014 DEHN + SÖHNE / protected by ISO 16016
mesh size
I
20 m
5×5m
II
30 m
10 × 10 m
III
45 m
15 × 15 m
IV
60 m
20 × 20 m
06.11.14 / 660_D_1
3D concept development / Project schedule
- Protected volume
© 2014 DEHN + SÖHNE / protected by ISO 16016
19./20.01.15 / MKN
Protection in Open Space
Type A , B & C
Type A : Small defined open space full protection can be provided
Type B : Open habitable roof space where people regularly present and where
full protection can be provided . Examples:
•
Penthouse open terrace
•
Roof Gardens
•
Roof Level Multi-story car parks
•
Roof Amenities – café Sport facility , swimming pools
Type C : Large open spaces where full protection is not practicable :
•
School fields
•
Public parks
•
Beaches
•
Golf Course
•
Vacant land for ad-hoc activities – trade fairs , fun fairs etc.
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Rolling Sphere
Example
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DEHN Asia Lightning protection seminar
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Rolling Sphere
Sag
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DEHN Asia Lightning protection seminar
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© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Air Termination & Down conductor
+ Separation Distance
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DEHN Asia Lightning protection seminar
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Air Termination
Avoiding Touch & Separation Distance
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DEHN Asia Lightning protection seminar
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Air Termination + Separation Distance
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DEHN Asia Lightning protection seminar
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Direct connection of roof-mounted structures
Partial lightning currents inside the structure
ventilation /
air-conditioning
system
floor
distributor
PC
PC
floor
distributor
PC
PC
server
MEB: Main Earthing Busbar; EB: Earthing Busbar
© 2014 DEHN + SÖHNE / protected by ISO 16016
International Workshop 2015-07
EB
EB
MEB
24.06.13 / 1535_E_1
Protection of roof-mounted structures with
isolated air-termination system
Lightning current
discharged from the
outside
ventilation
system/air
conditioning
FDB
PC
PC
FDB
PC
PC
Server
EB
EB
MEB
FDB: Floor Distribution Board; MEB: Main Equipotential Bonding; EB: Equipotential Bonding
© 2014 DEHN + SÖHNE / protected by ISO 16016
International Workshop 2015-07
06.11.13 / 8371_E_1
Air-termination system
for small-sized electric roof installations
αo
s
Protection of the roof-mounted fan by
means of an air-termination rod
according to:
IEC 62305-3 Subsection 5.2.2
Protective angle α according to Table 2
Connection of the roof-mounted fan via a
spark gap according to
DIN VDE 0185 T1
Direct connection of a roof-mounted fan
according to ABB 8th edition
© 2014 DEHN + SÖHNE / protected by ISO 16016
HVI Standard Presentation; TDL
16.09.13 / 369_E_1
Conductor Holder
Roof Tile
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DEHN Asia Lightning protection seminar
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Conductor Holder
Roof Tile
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
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Down conductor
No Aluminum to Concrete
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DEHN Asia Lightning protection seminar
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Conductor Holder
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DEHN Asia Lightning protection seminar
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Test Joints
Test Joints :
• Type 1 : Expose down conductor
❖ 2.5m @ Every down conductor [ j]
–
i
: 0.3m
–
k
: 0.5m
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
64
Touch Voltage
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DEHN Asia Lightning protection seminar
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Step Voltages
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DEHN Asia Lightning protection seminar
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Protection measures against
touch and step voltage
No life hazard if...
“There are no persons
within 3 m from the down
conductors.”
“The contact resistance of
the surface layer of the
soil is not less than 100
kΩ.“
“A layer of insulating
material, e. g. asphalt,
of 5 cm thickness (or
a layer of gravel 15
cm thick)”
3m
Ref.: IEC 62305-3:2010, 8.1
© 2014 DEHN + SÖHNE / protected by ISO 16016
3m
External LPS Presentation
67
23.02.13 / 2934_E_1
Protection measures against touch voltage
down
conductor
insulated to a
value of 100 kV
(1.2/50 µs)
insulation
of 3 m
If none of these conditions is fulfilled, protection
measures shall be adopted against injury to
living beings due to touch voltages as follows:
▪ insulation of the exposed down-conductor is
provided giving a 100 kV, 1,2/50 μs impulse
withstand voltage, e.g. at least 3 mm crosslinked polyethylene
▪ physical restrictions and/or warning notices to
minimize the probability of down-conductors
being touched
clamp
Ref: IEC 62305-3 :2010; 8.1
© 2014 DEHN + SÖHNE / protected by ISO 16016
External LPS Presentation
68
05.02.13 / 2934_E_2
CUI Conductor
Protection against touch voltage at down conductors
CUI Conductor
Technical data
Impulse withstand
voltage
100 kV (1.2/50 µs)
Conductor material
copper
Insulation material
cross-linked PE
Outer diameter
(conductor)
20 mm
Cross-section
50 mm² (Ø 8 mm)
Protective coating
of the skin
PE, light grey
Length of 3.5 m
Length of 5 m
Part No. 830 208
Part No. 830 218
▪ Eliminates the risk of touch voltage for
living beings according to IEC 62305-3
© 2014 DEHN + SÖHNE / protected by ISO 16016
External LPS Presentation
69
04.02.13 / 4499_E_2
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
70
Joints conforming to IEC 62305
Suitable for Lightning & EMC
Recommended
•
•
•
•
•
•
•
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
No Power Source Require
No Life Hazard
No Health Hazard
•
Chemical release from welding
•
3 – 5x faster
Installation by torque wrench
Inspection by torque wrench
Faster installation Completion
Lower Level of skill requirement
compare to Welding & Bound
Joints
71
SS 555, Part 3
Reinforcement & Natural Down Conductor
© 2014 DEHN + SÖHNE / protected by ISO 16016
SS 555, Part 3
Reinforcement & Natural Down Conductor
© 2014 DEHN + SÖHNE / protected by ISO 16016
Simulation of the current distribution
Using the reinforcement as natural down conductor
© 2014 DEHN + SÖHNE / protected by ISO 16016
Compact Lightning Protection Seminar – Separation distance
27.09.12 / 5857_E_2
IEC 62305-3:2010
6.3 Electrical insulation of the external LPS
6.3.1 General
In structures with metallic or electrically continuous connected reinforced
concrete framework a separation distance is not required.
Note DEHN:
Only applies to the separation distance inside the building!
© 2014 DEHN + SÖHNE / protected by ISO 16016
Compact Lightning Protection Seminar – Separation distance
24.06.13 / 6148_E_1
High Rise Building
Separation Distance – Conventional Design LPL III @ 200kA
Building Profile :
Height : 60
Width : 25
Length : 25
Details of Simulation
Selected class of LPS : III
Current intensity
: 200 kA
Insulation coefficient km: 0.5
Potential level
: -10 m
© 2014 DEHN + SÖHNE / protected by ISO 16016
Furthest
3m
18m
35m
45m
55m
2.06 m
29cm
66cm
1.03m
1.23m
1.5m
High Rise Building
Separation Distance – Reinforcement Design LPL III @ 200kA
Building Profile :
Height : 60
Width : 25
Length : 25
Details of Simulation
Selected class of LPS : III
Current intensity
: 200 kA
Insulation coefficient km: 0.5
Potential level
: 58 m
Furthest
56cm
© 2014 DEHN + SÖHNE / protected by ISO 16016
3m
18m
35m
45m
Equipotential
55m
High Rise Building
Separation Distance – Reinforcement Design LPL I @ 200kA
Building Profile :
Height : 60
Width : 25
Length : 25
Details of Simulation
Selected class of LPS : I
Current intensity
: 200 kA
Insulation coefficient km: 0.5
Potential level
: 58 m
Furthest
41cm
© 2014 DEHN + SÖHNE / protected by ISO 16016
3m
18m
35m
45m
Equipotential
55m
BS 7430:2011 / SS 551
Code of practice for protective earthing of electrical installations
9.5.8.5 Structural steelwork
Foundation metalwork in concrete may be used as a ready made and
effective earth electrode. The total electrode area formed by the
underground metalwork of large structure may often be used to provide
an earth resistance lower then that obtainable by other methods; overall
values well below 1 Ω are obtainable.
© 2014 DEHN + SÖHNE / protected by ISO 16016
Ring earth electrode in case of perimeter insulation
Installation in the blinding layer
Ref.: Fritz Mauermann GmbH + Co. KG, Paderborn
© 2014 DEHN + SÖHNE / protected by ISO 16016
ring earth electrode
material: StSt (V4A)
mesh size of 10x10 m, if a
lightning protection systems
is installed
Compact Lightning Protection Seminar – Basics of dimensioning
07.01.13 / 5523_E_1
DIN 18014: Earth-termination system in case of
foundations with increased earth contact resistance
© 2014 DEHN + SÖHNE / protected by ISO 16016
Compact Lightning Protection Seminar – Basics of dimensioning
13.11.13 / 6608_E_2
DIN 18014: Earth-termination system in case of
foundations with increased earth contact resistance
functional
ring earth electrode, mesh
size bonding conductor,
- 10 m x 10to
m the
with LPSmesh size ≤ 20 m x 20 m
connection
- 20 m x 20 m at
without LPS
reinforcement
intervals of 2 m
© 2014 DEHN + SÖHNE / protected by ISO 16016
DIN 18014: Earth-termination system in case of
foundations with increased earth contact resistance
ring earth electrode, pressure-water-tight
mesh size
- 10 m x 10 m with LPS
wall bushing
- 20 m x 20 m without LPS
Connection of the ring earth
electrode to the functional
bonding conductor
▪ per down conductor of the
lightning protection system
or
▪ at intervals of 20 m /
circumference of the building
© 2014 DEHN + SÖHNE / protected by ISO 16016
Compact Lightning Protection Seminar – Basics of dimensioning
13.11.13 / 6608_E_7
DIN 18014: Earth-termination system in case of
foundations with increased earth contact resistance
ground surface
highest ground
water level
foundation
slab
pressurewater-tight
wall bushing
blinding
layer
terminal lug
connection to the
reinforcement
connecting
clamp
© 2014 DEHN + SÖHNE / protected by ISO 16016
equipotential
bonding
conductor
Compact Lightning Protection Seminar – Basics of dimensioning
ring earth electrode
13.11.13 / 6608_E_11
Lightning protection zones concept
Detail: Earth-termination system
Earth-termination system
Connection to the
reinforcement mesh
© 2014 DEHN + SÖHNE / protected by ISO 16016
Lightning protection zones concept
Detail: Down-conductor system
Connection of the down-conductor
system to the foundation earth electrode
© 2014 DEHN + SÖHNE / protected by ISO 16016
86
15.11.12 / 8080_E_16
Test Joints
• Type 2 : Natural down conductor and flushed mounted
❖ 1.5m min 2
Connection of the downconductor system to the
foundation earth electrode
❖ No Earth Pit Require
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
87
Establishing a “lightning equipotential bonding level“
for a new building
based on IEC 62305-4
a
8
1
b
3
7
5
4
2
direct
connection to
the intermeshing
in the
reinforcement
6
5
1 Connection between the air-termination
system and the down conductors
2 Horizontal connecting conductor
3 Reinforcing bars
4 Down conductor and ring conductor
5 Equipotential bonding bar of the
internal lightning protection system
6 Test clamp
7 Current carrying connection
8 Air-termination rod
Typical distances
a = about 5 m
b = about 5 m
NOTE:
Such a lightning protection system
is ideally suited for new buildings
where a low-impedance structure
should be created to be able to
neglect separation distances from
the inside of the structure up to the
roof level.
Ref.: EN 62305-4:2010, Figure 7
04.01.2017 [20160502] / 9207_E_1
© 2014 DEHN + SÖHNE / protected by ISO 16016
Metal facade used as a natural down conductor
b
2
3
1
2
4
4
c
6
6
5
Typical distances
a/b = 5 m; c = 1 m
(not common practice for curtain walling)
a
6
7
connection to the earthtermination system
7
5
8
1 Metal capping of the roof
parapet
2 Connection between the
facade cladding and the
air-termination system
3 Horizontal air-termination
system
4 Metal facade cladding
5 Equipotential bonding
bar Connection between
the plates of the facade
cladding
6 Connection between the
facade elements and the
load bearing construction
7 Test joint
8 Steel reinforcement
embedded in concrete
Ref.: EN 62305-3:2010, Figure E.8a
04.01.17 [20161213] / 2979_E_1
© 2014 DEHN + SÖHNE / protected by ISO 16016
Multi-storey building with utilisation of the
reinforcement
Structure of the building
1 Mesh size of the ring earth electrode
acc. DIN 18014 - max. 10 x 10 m
(each down conductor must be connected
to the ring earth electrode)
2 Mesh size of the functional
bonding conductor acc. DIN 18014
- max. 20 x 20 m
3
5m
5m
1m
3
1m
3
Lightning equipotential bonding
Lightning current arrester
Local equipotential bonding
Surge arrester
Functional earthing
2
10 m
1
Air-termination system
Equipotential bonding
Fixed earthing point
20 m
Note: Building is not shielded according IEC 62305-4
Low-voltage supply system
3 Equipotential surface
Lightning Protection Zone
14.12.16 [20160503] / 10289_E_1
© 2014 DEHN + SÖHNE / protected by ISO 16016
Multi-storey building with utilisation of the
reinforcement
Isolated lightning protection system on the roof
Curtain-wall metal facing
"s" is kept
1 Equipotential surface
1
1
1
Note: Building is not shielded
according to IEC 62305-4
Lightning equipotential bonding
Lightning current arrester
Local equipotential bonding
Surge arrester
Functional earthing
Low-voltage supply system
LPL
D+S recommend: SPDs Type 2 based on
VDE 0100-534, Table 534.3B
D+S recommend: SPDs
LPL I
Nominal discharge current In 20 kA (8/20µs) / pole
Nominal discharge current In 10 kA (8/20µs) / wire
LPL II
Nominal discharge current In 15 kA (8/20µs) / pole
Nominal discharge current In 10 kA (8/20µs) / wire
LPL III / IV
Nominal discharge current In 10 kA (8/20µs) / pole
Nominal discharge current In 10 kA (8/20µs) / wire
© 2014 DEHN + SÖHNE / protected by ISO 16016
Air-termination system
Equipotential bonding
Fixed earthing point
Lightning Protection Zone
11.01.17 [20160503] / 10289_E_5
Lightning protection zones concept
Detail: Down-conductor system
Down conductor in the supporting structure
Connection of the down
conductor to the
reinforcement of the
supporting structure
© 2014 DEHN + SÖHNE / protected by ISO 16016
92
15.11.12 / 8080_E_15
Example:
Two-storey building (according to IEC 62305-3)
c= 10 m
h1 = h2 = h3 = 3.0 m
c
s
h1
l
s
s
h2
s
h3
l
Lightning equipotential bonding
Lighning current arrester
Local equipotential bonding
Surge arrester
Functional earthing
Low-voltage supply system
Air-termination system
Equipotential bonding
Fixed earthing point
Lightning Protection Zone
02.05.17 [20160504] / 10316_E_1
© 2014 DEHN + SÖHNE / protected by ISO 16016
Lightning protection zones concept
Detail: Equipotential bonding
Equipotential bonding of metal
installations
© 2014 DEHN + SÖHNE / protected by ISO 16016
94
15.11.12 / 8080_E_21
Lightning protection zones concept
Detail: Structural Metal components
e. g. cable trays
e. g. railings
e. g. lifts systems
© 2014 DEHN + SÖHNE / protected by ISO 16016
95
15.11.12 / 8080_E_22
Reinforcement as Down conductor
Separation Distance , Down Conductor & Bonding
Advantage:
• Solved :
• Separation Requirement (Except Roof Top)
• Touch (Except Roof Top) & Step Voltage Hazard
• Shielding Effect
• Ease of Bonding Point Introduction ( Omits Long cable for Bonding)
• < 1Ω Earthing Value (Foundation/Structure Steel Work Being Use)
• Anti Theft
• Long Term – Maintenance Free / Negligible replacement requirement
• No need earth pit
• Only 2 earth test point diagonally installed
• Ease Architectural Design
• Cost & Time Savings
Ref.: Insert text
© 2014 DEHN + SÖHNE / protected by ISO 16016
Continuity Test
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
97
SS 555 Part 4
© 2014 DEHN + SÖHNE / protected by ISO 16016
DEHN Asia Lightning protection seminar
98
Comparison of test currents
Video
2
1
wave form [µs]
i [kA] 100
imax [kA]
10/350
8/20
40
40
80
60
50
40
1
20
2
0
20
200
Ref.: IEC 61643-11
© 2014 DEHN + SÖHNE / protected by ISO 16016
400
600
800
1000
t [µs]
30.07.13 / 916_E_1
Comparison of test currents
Video: Impact on the electrical installation
© 2014 DEHN + SÖHNE / protected by ISO 16016
11.02.13 / 916_E_4
Laboratory test with simulated lightning currents
according to IEC 61643-11
GSM customer panel 50 kA (10/350 µs)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Application
Surge protection for power supply systems
Type 3
Type 2
SDB
> 10 m
DEHNguard M
 10 m terminal
DEHNsafe
device
Type 3
Type 2
SDB
> 10 m
DEHNrail
DEHNguard M
> 10 m
MDB
DEHNventil M
terminal
device
Type 3
Type 1+2
power network
terminal
device
 10 m
terminal
device
DEHNflex
terminal
device
MDB Main Distribution Board
SDB Sub Distribution Board
© 2014 DEHN + SÖHNE / protected by ISO 16016
30.07.14 / 8350_E_1
Lightning Current Distribution LPL I = 200 kA
(10/350µs)
Building
Service
Transformer
External Lightning Protection
200 kA
25 kA per Line
25 kA each
100 kA
100 kA
100 kA
© 2014 DEHN + SÖHNE / protected by ISO 16016
Sizing & Configuration according to
LPL (lightning protection level)
First positive impulse
Lightning protection level (LPL)
I
II
III-IV
Peak current I (kA)
200
150
100
Iimp N-PE (kA)
100
75
50
Iimp L-N (kA)
25
18.75
12.5
Time parameters T1/T2 (µs/µs)
10/350
Ref.: IEC 62305-1:2010, Table 3 (extract)
© 2014 DEHN + SÖHNE / protected by ISO 16016
Compact Surge Protection Seminar – Causes
16.07.14 / 6006_E_1
Application of SPD in ACPD (AC Power Distribution)
AC Power Distribution Board
•
•
•
230/400 V
•
•
•
I
•
•
•
•
•
In accordance with IEC 61643-11
Combined SPD (Type 1+2), Voltage Protection ≤ 1.5kV
Lightning Impulse Current (10/350us)
- 25kA per channel, 100kA total (LPL1)
- 12.5kA per channel, 50kA total (LPL3)
Differential mode or 3+1 configuration
Ensure energy coordination of SPD
Follow Current (If) shall be less than current rating of the
incoming breaker to avoid nuisance tripping
Follow Current Interrupt Rating (Ifi) & Short-Circuit Rating
of SPD (Isccr) ≥ Prospective short circuit rating of System
(Ip)
Backup fuse rating in accordance with IEC 61643-12
Metal encapsulated spark-gap to ensure no plasma jet
TOV, 440V, min 2 hrs
Status indicator to show the serviceability of the SPD
including N-PE channel
© 2014 DEHN + SÖHNE / protected by ISO 16016
Internal
surge
protection
Thank You
© 2014 DEHN + SÖHNE / protected by ISO 16016