Lightning Protection International Stormaster ESE 15 User manual

Stormaster ESE Installation Manual
Comprehensive Lightning, Surge Protection & Earthing Solutions
LIGHTNING PROTECTION INTERNATIONAL PTY LTD
www.lpi.com.au

Lightning Protection International Pty Ltd
ABN 11 099 190 897
PO Box 379 Kingston, Tasmania, Australia 7051
Phone: [phone]
Fax: [phone]
Email: [email protected]
Web: www.lpi.com.au
STORMASTER ESE INSTALLATION MANUAL
As a result of continuing research and product development in the area of lightning and
lightning protection, LPI reserves the right to alter any detail contained within at any
time without notice.
Prior to installation of the Stormaster ESE system, installers should check with LPI or an
authorised distributor to confirm they have the most recent version of the Stormaster
ESE Installation manual.
It should be noted that 100% (100 percent) protection for direct lightning strikes is not
possible and cannot be provided due to the lightning discharge process being a natural
atmospheric event.
Stormaster ESE Lightning Protection System
System Owner:
Date Installed:
Installation Contractor:
Supplied by:
Location of Installation:

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Stormaster ESE Installation Manual
Lightning Protection International Pty Ltd

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Contents
Protection Performance 3
Warranty 5
Lightning Protection 6
General Safety Guidelines 7
Recommended Installation Method 7
Checking Lightning Protection
Components Supplied 16
LPI Stormaster ESE Installation 16
Installation of the Lightning Earth 17
Earth Enhancing Compounds 18
Bonding the Lightning Earth 18
Labelling 19
Installation of the HVSC Plus
Downconductor 19
Hauling the HVSC Plus
Downconductor 19
HVSC Plus Downconductor Clearance
Holes 21
Routing 21
Fixing the HVSC Plus Downconductor 22
Installation of Conventional
Downconductors 23
Installation of Stormaster GI Terminal
to Threaded Pipe 25
Termination of the HVSC Plus
Lower End 26
Lower Termination of Conventional
Downconductor to the Lightning
Earth 30
Upper Termination Instructions for
UTERMKIT-Mk3 (Heatshrink) 30
Termination of the HVSC Plus Upper
End 30
Upper Termination Instructions for
UTERMKIT-Mk3 (Heatshrink) 31
Connection of Factory Pre-Terminated
HVSC Plus (Upper End) to Stormaster
ESE Terminal 36
Labelling 36
Masts 36
Types of Mast Configurations 37
Cantilevered 37
Guyed 37
Freestanding 37
Mast Bases 38
Mast Couplings and Guying Points 38
Guying 39
Preparation for Raising the Mast into
Position 40
Raising of the Mast 40
Lightning Strike Recorder (LSR1) 42
Certification 44
Operation and Maintenance 44
Testing the Stormaster Terminal 45
Testing the HVSC Plus Downconductor 45
Testing the Lightning Earth 46
Record of Earth Resistance Readings
Table 48
Installation Notes 48

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(1) Rp (h) = √ 2rh − h
2
+ Δ(2r + Δ) for h ≥ 5 m
and
(2) Rp = h x Rp5/ 5 for 2 ≤ h < 5 m
where h= Stormaster height relative
to the area being protected (m)
Rp5= value of Rp from Eqn. (2) when h = 5 m
r = 20 m for protection level I (Very High protection)
30 m for protection level II (High protection)
45 m for protection level III (Medium protection)
60 m for protection level IV (Standard protection)
and Δ = Stormaster time and height advantage according to the
Stormaster model installed:
Choices: Stormaster ESE 15: Δ= 15 µs
Stormaster ESE 30: Δ= 30 µs
Stormaster ESE 50: Δ= 50 µs
Stormaster ESE 60: Δ= 60 µs
Rp3
Rp2
Rp1
h3 h2
h1
Protection Performance
The protection radius (Rp) of a Stormaster
ESE terminal is calculated using the formula
as defined in NF C 17-102 (September 2011),
namely:

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Contact LPI for Protection Radius for Level I+ and Level I++
PROTECTION RADIUS, Rp (m)
h = height of Stormaster
ESE terminal above the 2 4 5 6 10 15 20 45 60 80 100
area to be protected (m)
Protection Level I
(Very High)
Stormaster ESE 15 13 25 32 32 34 35 35 35 35 35 35
Stormaster ESE 30 19 38 48 48 49 50 50 50 50 50 50
Stormaster ESE 50 27 55 68 69 69 70 70 70 70 70 70
Stormaster ESE 60 31 63 79 79 79 80 80 80 80 80 80
Protection Level II
(High)
Stormaster ESE 15 15 30 37 38 40 42 44 44 44 44 44
Stormaster ESE 30 22 44 55 55 57 58 59 59 59 59 59
Stormaster ESE 50 30 61 76 76 77 79 79 79 79 79 79
Stormaster ESE 60 35 69 86 87 88 89 89 89 89 89 89
Protection Level III
(Medium)
Stormaster ESE 15 18 36 45 46 49 52 55 60 60 60 60
Stormaster ESE 30 25 51 63 64 66 69 71 75 75 75 75
Stormaster ESE 50 35 69 86 87 88 90 92 95 95 95 95
Stormaster ESE 60 39 78 97 97 99 101 102 105 105 105 105
Protection Level IV
(Standard)
Stormaster ESE 15 20 41 51 52 56 60 63 73 75 75 75
Stormaster ESE 30 29 57 71 72 75 78 81 89 90 90 90
Stormaster ESE 50 38 76 95 96 98 100 102 109 110 110 110
Stormaster ESE 60 43 85 107 107 109 111 113 119 120 120 120

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WARRANTY
This product has a limited manufacturer’s warranty given by Lightning Protection
International Pty Ltd (LPI) to the original purchaser. The warranty covers any
manufacturing defects, material defects and workmanship for a period of five (5)
years from the date of dispatch from the manufacturer. This warranty is only valid if
the purchaser sends a copy of the dulyfilled warranty card back to LPI within 30 days
of purchase.
The purchaser acknowledges 100% protection for direct strike lightning is not
possible and cannot be provided due to the lightning discharge process being a
natural atmospheric event with statistical variation in behaviour and energy levels,
which may exceed product ratings. Hence, the manufacturer’s liability is limited to
repair or replacement of the faulty product with an equivalent product. The option
to repair or replace the product will be at manufacturer’s sole decision. The repaired
or replacement product will be warranted under the terms of this warranty for the
remainder of the warranty period for the product originally supplied. This warranty
does not indemnify the purchaser of the product for any consequential claim for
damages or loss of operations or service or profits.
This warranty only covers products supplied by LPI or its authorized distributor.
The manufacturer also confirms that the warranty will not be applicable (in its
judgement) under the following conditions:
(a) The product being connected to equipment and accessories not authorised by
LPI.
(b) Improper handling, misuse, abuse, neglect, accident, improper installation or
non-compliance with the direction of use.
(c) Any alteration or modification which in the opinion of LPI will affect the
performance of the product.
(d) The product not earthed (where ever applicable) according to LPI’s
recommendations.

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Lightning Protection
Comments on the French Standard NF C 17-102 (2011).
Refer to the section in the standard titled “foreward” which states the following:
Installations for protection against lightning designed and made according to this document,
may not, like everything about thenatural elements,ensure the absolute protectionof structures,
people or objects; however, the application of this document must reduce significantly the risk
of damage due to lightning on protected structures.
The LPI Stormaster ESE terminal should only be installed during storm free periods.
Figure 1.

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General Safety Guidelines
Recommended Installation Method
∆Ensure safe working environments and practices to local codes
∆Use personal protective equipment during installation
∆Use mechanical methods of raising and installing masts over 6 m
∆Cordon off area below installation point
∆Check for overhead powerlines or any other obstructions before lifting or raising
∆Ensure enough man power to safely conduct all aspects of installation
∆The installation must conform to all relevant local standards and regulations.
To assist in the installation of the Stormaster ESE terminal and accessories, refer to drawings
as illustrated on pages 8 to 15.
1. Installation of the lightning earth.
2. Installation of the HVSC Plus downconductor.
3. Lower termination of the HVSC Plus downconductor and connection to the lightning earth.
4. Upper termination of the HVSC Plus downconductor and connection to the Stormaster ESE
terminal.
5. Preparation and raising of the mast into position.

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Figure 2.
LPI®SADDLES AND FIXINGS
ORDERING CODE: SAD FIX
LPI®LIGHTNING STRIKE RECORDER
ORDERING CODE: LSR1
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15
STORMASTER-ESE-30
STORMASTER-ESE-50
STORMASTER-ESE-60
LPI®UPPER TERMINATION KIT
ORDERING CODE: UTERMKIT-Mk3
LPI®FRP SUPPORT MAST
ORDERING CODE: FRP-2M
FRP-3M
FRP-4M
LPI®INLINE COUPLING
ORDERING CODE: ILCOUPLING
LPI®GUY KIT
ORDERING CODE: GUYKIT-4M
GUYKIT-4M-SS
GUYKIT-7M
GUYKIT-7M-SS
LPI®CABLE TIES
ORDERING CODE: S/S-CABTIES-STD
S/S-CABTIES-L
LPI®HVSC PLUS DOWNCONDUCTOR
ORDERING CODE: HVSCPLUS-PM
OR LPI COPPER TAPE
ORDERING CODE: FL6T253C
LPI®LOWER MAST ASSEMBLY
ORDERING CODE: ALUMB-3M
ALUMB-4M
ALUMB-5M
ALUMB-6M
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3
LPI®EARTHING SYSTEM
LPI
®
EARTH ENHANCING MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20
LPI®
INSPECTION PIT
ORDERING CODE:
EPIT-P
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10
SRIM-20
RESLO-20
30 x FL6T253C
TYPICAL PRODUCTS
REQUIRED FOR
RADIAL LP EARTH:

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Figure 3.
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15
STORMASTER-ESE-30
STORMASTER-ESE-50
STORMASTER-ESE-60
LPI®FRP SUPPORT MAST
ORDERING CODE: FRP-2M
FRP-3M
FRP-4M
LPI®INLINE COUPLING
ORDERING CODE: ILCOUPLING
LPI®CABLE TIES
ORDERING CODE: SS-CABTIES-STD
SS-CABTIES-L
LPI®HVSC PLUS DOWNCONDUCTOR
ORDERING CODE: HVSCPLUS-PM
OR LPI®COPPER TAPE
ORDERING CODE: FL6T253C
LPI®SADDLES FOR CANTILEVERING MAST
ORDERING CODE: CANTSAD
LPI®LOWER MAST ASSEMBLY
ORDERING CODE: ALUM-3M
ALUM-4M
ALUM-5M
ALUM-6M
LPI®SADDLES AND FIXINGS
ORDERING CODE: SAD FIX
LPI®EARTH ENHANCING
MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20
LPI®INSPECTION PIT
ORDERING CODE: EPIT-P
IMPORTANT:
One third of the mast
height must be securely
fixed to the structure.
Stormaster ESE
terminal to be a
minimum of 2 metres
above the highest point
of the building or
rooftop objects.
Recommended
clearance height = 5
metres.
LPI®LIGHTNING STRIKE RECORDER
ORDERING CODE: LSR1
LPI®EARTHING SYSTEM
TYPICAL PRODUCTS REQUIRED FOR RADIAL LP EARTH:
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10 / SRIM-20 / RESLO-20
30 x FL6T253C
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3

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IMPORTANT:
One third of the mast
height must be securely
fixed to the structure.
Stormaster ESE
terminal to be a
minimum of 2 metres
above the highest point
of the building or
rooftop objects.
Recommended
clearance height = 5
metres.
LPI®HVSC PLUS DOWNCONDUCTOR
ORDERING CODE: HVSCPLUS-PM
OR LPI®COPPER TAPE
ORDERING CODE: FL6T253C
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15
STORMASTER-ESE-30
STORMASTER-ESE-50
STORMASTER-ESE-60
LPI®FRP SUPPORT MAST
ORDERING CODE: FRP-2M
FRP-3M
FRP-4M
LPI®INLINE COUPLING
ORDERING CODE: ILCOUPLING
LPI®CABLE TIES
ORDERING CODE: SS-CABTIES-STD
SS-CABTIES-L
LPI®U-BOLT
ORDERING CODE: U-BOLT (2 PER SET)
LPI®BEAM CLAMP AND CABLE SUPPORT
ORDERING CODE: BEAM CLAMP /
CABLE SUPPORT - HVSC
LPI®LIGHTNING STRIKE RECORDER
ORDERING CODE: LSR1
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3
LPI®EARTHING SYSTEM
LPI®EARTH ENHANCING
MATERIAL
ORDERING CODE: GRIP-10
RESLO-20
SRIM-20
LPI®INSPECTION PIT
ORDERING CODE: EPIT-P
LPI®LOWER MAST ASSEMBLY
ORDERING CODE: ALUM-3M
ALUM-4M
ALUM-5M
ALUM-6M
LPI®U-BOLT
ORDERING CODE: U-BOLT (2 PER SET)
TYPICAL PRODUCTS REQUIRED FOR RADIAL LP EARTH:
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10 / RESLO-20 / SRIM-20
30 x FL6T253C
Figure 4.

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Figure 5.
Preferred Angle
60 - 45 Degrees
GUY WHERE
NECESSARY
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15
STORMASTER-ESE-30
STORMASTER-ESE-50
STORMASTER-ESE-60
LPI®GUY KIT
ORDERING CODE: GUYKIT-4M
GUYKIT-4M-SS
GUYKIT-7M
GUYKIT-7M-SS
LPI®FRP SUPPORT MAST
ORDERING CODE: FRP-2M
FRP-3M
FRP-4M
LPI®INLINE COUPLING
ORDERING CODE: ILCOUPLING
LPI®CABLE TIES
ORDERING CODE: SS-CABTIES-STD
SS-CABTIES-L
LPI®GUY KIT
ORDERING CODE: GUYKIT-4M
GUYKIT-4M-SS
GUYKIT-7M
GUYKIT-7M-SS
LPI®HVSC PLUS DOWNCONDUCTOR
ORDERING CODE: HVSCPLUS-PM
OR LPI®COPPER TAPE
ORDERING CODE: FL6T253C
LPI®LIGHTNING
STRIKE RECORDER
ORDERING CODE: LSR1
LPI® LOWER MAST ASSEMBLY
ORDERING CODE: ALUMB-3M
ALUMB-4M
ALUMB-5M
ALUMB-6M
DO NOT OVERTENSION
GUY WIRES (SLIGHTLY
SAGGING)
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3
LPI®EARTHING SYSTEM
LPI®EARTH ENHANCING
MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20
LPI®
INSPECTION
PIT
ORDERING
CODE: EPIT-P
IMPORTANT:
Stormaster ESE Terminal to
be a minimum of 2 metres
above the highest point
of the building or rooftop
objects. Recommended
clearance height = 5
metres.
TYPICAL PRODUCTS
REQUIRED FOR RADIAL
LP EARTH:
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10 / SRIM-20 / RESLO-20
30 x FL6T253C
LPI®GUY RING
ORDERING CODE: GUY RING

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Figure 6.
LPI®INSPECTION PIT
ORDERING CODE: EPIT-P
IMPORTANT:
One third of the
mast height must be
securely fixed to the
structure. Stormaster
ESE terminal to be a
minimum of 2 metres
above the highest
point of the building
or rooftop objects.
Recommended
clearance height = 5
metres.
TYPICAL PRODUCTS REQUIRED
FOR RADIAL LP EARTH:
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10 / SRIM-20 / RESLO-20
30 x FL6T253C
BASE OF MAST PIPE
MOUNTING BOLT &
STAINLESS STEEL
WASHER
COPPER TAPE
BASE OF MAST PIPE
MOUNTING BOLT &
STAINLESS STEEL
WASHER
COMPRESSION LUG
COPPER CABLE
LPI®SADDLES FOR CANTILEVER MAST
ORDERING CODE: CANTSAD
LPI STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15-GI
STORMASTER-ESE-30-GI
STORMASTER-ESE-50-GI
STORMASTER-ESE-60-GI
MAST ASSEMBLY WITH GI ADAPTOR
ORDERING CODE: ALUM3M-MGI
ALUM4M-MGI
ALUM5M-MGI
ALUM6M-MGI
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3
LPI®EARTHING SYSTEM
LPI®EARTH ENHANCING MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20

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BASE OF MAST PIPE
MOUNTING BOLT &
STAINLESS STEEL
WASHER
MOUNTING BOLT &
STAINLESS STEEL
WASHER
COPPER TAPE
BASE OF MAST PIPE
COMPRESSION LUG
COPPER CABLE
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15-GI
STORMASTER-ESE-30-GI
STORMASTER-ESE-50-GI
STORMASTER-ESE-60-GI
MAST ASSEMBLY WITH GI ADAPTOR
ORDERING CODE: ALUMB-3M-MGI
ALUMB-4M-MGI
ALUMB-5M-MGI
ALUMB-6M-MGI
IMPORTANT:
Stormaster ESE
terminal to be a
minimum of 2
metres above the
highest point of
the building or
rooftop objects.
Recommended
clearance
height = 5
metres.
LPI®SADDLES AND FIXINGS FOR
COPPER TAPE
ORDERING CODE: FL3DCTC253C
LPI®LIGHTNING STRIKE RECORDER
ORDERING CODE: LSR1
LPI®LOWER TERMINATION KIT
ORDERING CODE:
LTERMKIT-MK3
LPI® EARTHING SYSTEM
LPI®EARTH ENHANCING
MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20
LPI®INSPECTION PIT
ORDERING CODE: EPIT-P
LPI®GUY RING
ORDERING CODE: GUY RING
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10
/ SRIM-20
/ RESLO-20
30 x FL6T253C
TYPICAL PRODUCTS
REQUIRED FOR
RADIAL LP EARTH:
Figure 7.

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Figure 8.
SHACKLE
FOOTING
LPI®LOWER TERMINATION KIT
ORDERING CODE: LTERMKIT-MK3
LPI®EARTHING SYSTEM
LPI®EARTH ENHANCING MATERIAL
ORDERING CODE: GRIP-10
SRIM-20
RESLO-20
LPI®INSPECTION PIT
ORDERING CODE: EPIT-P
TERMINATION OF
DOWNCONDUCTOR
TO EARTH
LPI®STORMASTER ESE TERMINAL
ORDERING CODE: STORMASTER-ESE-15
STORMASTER-ESE-30
STORMASTER-ESE-50
STORMASTER-ESE-60
LPI®FRP SUPPORT
MAST
ORDERING CODE:
FRP-2M
FRP-3M
FRP-4M
LPI®HVSC PLUS
DOWNCONDUCTOR
OR LPI COPPER
TAPE
(DOWNCONDUCTOR
TO BE RUN
INTERNALLY)
ORDERING CODE:
HVSCPLUS-PM OR
FL6T253C
FREESTANDING
MAST
CABLE SOCK
DETAIL
SPIGOT
DETAIL
CABLE SOCK LOCATED
INSIDE FREESTANDING
MAST, ATTACHED TO
WELDED LUG AT TOP
VIA SHACKLE
M6 x 10 PAN HEAD
SCREWS 3 PLACES
AT 120°
3 HOLES DRILLED
ON SITE, Ø 6.5 SPACED
AT 120°
INTERNAL SPIGOT
59 mm OD FOR SLIDING
FIT
WELDED LUG
4 x CBER1214
4 x RTC253
1 x EPIT-P
1 x GRIP-10
/ SRIM-20
/ RESLO-20
30 x FL6T253C
TYPICAL PRODUCTS
REQUIRED FOR
RADIAL LP EARTH:

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Figure 9.
NOTE: IF SUPPORT MAST ASSEMBLY IS
INSTALLED CLOSER TO EDGE OF STRUCTURE,
MINIMUM BENDING OF 0.43 m SHOULD BE
MAINTAINED
STAINLESS STEEL
CABLE TIES
STAINLESS STEEL
SADDLES
FIX EVERY 1-2 METRES
THIS TYPE OF ROUTING
TO BE AVOIDED. SHARP
BENDING RADIUS MAY
DAMAGE HVSC PLUS
REQUIRED “ANGULAR”
ROUTING OF THE HVSC.
NOTE: MINIMUM BEND
RADIUS 0.43 m
3 METRES MINIMUM

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Checking Lightning Protection Components Supplied
The LPI Stormaster ESE components received should be checked against the “bill of materials”
for loss during shipping and for damage.
Check the following:
Terminal(s)
∆Terminals have not been dented or damaged in any way during transit
∆Instructions, warning labels, warranty, test certificate and relevant mast base components
are supplied
Downconductor(s)
∆The HVSC Plus cable drum (if supplied) is not damaged
∆The correct HVSC Plus length(s) have been supplied
∆There is no obvious damage to the HVSC Plus cable
∆If a factory completed upper termination is supplied, check to see that the termination is
not damaged and confirm inside or outside termination(s)
∆Order of lengths and quantities of HVSC Plus (if multiple lengths on one drum), will be
shown on the side of the cable drum(s)
LPI Stormaster ESE Installation
All site and safety requirements must be followed during the installation of the LPI Stormaster ESE.
The correct order of installation is as follows:
1. Installation of the lightning earth.
2. Installation of the HVSC Plus downconductor.
3. Lower termination of the HVSC Plus downconductor and connection to the lightning earth.
4. Upper termination of the HVSC Plus downconductor and connection to the Stormaster ESE
terminal.
5. Preparation and raising of the mast into position.
LPI Stormaster ESE should only be installed during storm free periods.
If the Stormaster ESE terminal needs to be raised prior to connection to the lightning earth or
immediate connection is not possible, then connect the lower end of the downconductor to
structural steel reinforcing or other suitable earth point.

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Earth Pit (Polymer)
Ordering Code: EPIT-P
Lower Termination
Ordering Code: LTERMKIT - MK3
Each radial trench is treated
with earth enhancing compounds
Ordering Code: GRIP-10
RESLO-10
SRIM-20
Earth Rods
Ordering Code: CBER1214
25 x 3 mm typically
3 radial lengths of 10 m,
with 500 mm depth.
Ordering Code: FL6T253C
Earth Rod Clamp
Ordering Code: RTC253
Installation of the Lightning Earth
Before installation of the lightning protection earth, consult site drawings of underground
services so that these are not damaged during installation of the earthing system.
Earth DC resistance (typically ‹10 ohms) and impedance (typically ‹30 ohms) is required for
successful operation of LPI Stormaster ESE.
LPI recommends the installation of a radial lightning earth as shown in figure 10.
∆It is recommended to install a 3 x 10 metre length radial trench
∆Each radial should consist of a trench (Approx: 500 mm Deep x 200 mm wide x 10 m length)
∆An earth rod should be driven at the end of each trench
∆All rods should be interconnected through the use of 25 x 3 mm copper tape. The use
of earth rod clamps to fix the tape to rods is recommended
Figure 10.

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∆Waterproofing mastic tape should be used on all mechanical connections
∆ It is recommended to apply earth enhancing compound such as LPI RESLO-20, GRIP-10 or
SRIM-20 to reduce soil resistivity to less than 10 ohms
∆An earth pit should be installed where the end of the downconductor terminates to the
lightning earth as shown in figure 10. This gives an access point for disconnection
and future testing
∆Do not lower terminate (connect) the downconductor to the earthing system at this point
in time
Note: If due to space constraints it is not possible to install a radial earth as recommended,
consult with LPI or an authorised distributor for further advice
When using earth rods:
∆Use driving heads to prevent mushrooming on top of rod
∆Use driving heads when using coupled rods
∆Use a post or picket driver
Earth Enhancing Compounds
∆Earth Enhancing Compounds (such as LPI RESLO-20, GRIP-10 or SRIM-20) are supplied
when the existing soil mass has a high resistivity
∆Using the compounds can lower earth resistance/impedance
∆Compounds will require water and a mixing container
∆Follow all installation and safety instructions as supplied with products when applying
the compounds
Bonding the Lightning Earth
Where separate earths exist e.g. structure, power, communications and lightning protection,
they need to be bonded to form an equipotential ground plane. This will stop ground loops and
potential differences arising under transient conditions.
Before bonding of these earths takes place, make sure proper authorisation is gained.
Bonding cable must be 70 mm2(2/0 AWG) minimum depending on local standards. It may be
necessary to use a transient earth clamp (TEC100-2L) which bonds all earths to the same
potential under transient conditions.
For further information, it is advisable that local applicable standards are used, i.e. IEC 62305,
AS1768, NFPA 780, C22.1-98 and NEC.