Lighting Arrester Rod

Characteristics & Benefit

• Country Of Origin l First Indian made Advanced Safe Light-ning Protection Rod
• Technology l Based on a Hybrid Model which conforms to the latest ESE standard as per NFC & Corona Inhibiting Technology
• Central Main Rod | Based on the result of recent research it has been concluded that Blunt Tip is more efficient in real world conditions in increasing the efficiency of the system.
• Upward Streamer l Blunt tip increases the length of upward streamer as the construction of the system allows it to store the charge within it so as to release it in the most optimum possible way.
• SFCH | Side Flash Capture Head prevents damage to property and life trom side flashes
• Power Source l THOR SLPR doesnt require any input. Come pletely Self Reliant
• Coverage Area l Provides larger area tor interception of |ighthing
• Material Of Construction (SS 304 l SS 316) l Made of high quality stainless steel which allows the system to efficiently operate in all kinds of weather conditions. Corrosion Resistant
• Installation/Service Support I Direct Manutacturers Service Support for installation and Maintenance
• Certification l CPRI tested & certified tor both types (+ ,-) impulse
• Design Patent/ Intellectual Patent l The one & only lndian make brand of its category to get patent due to its unique combination of technology & design

Applications
All type of Industrial units, power plants, transmission towers, offices, residences, commercial structures, telecommunications towers, wind farms, power stations, mines and virtually every installation
Certifications | Standards | Approvals
lSO 9001:2008 l OHSAS18001 I CPRI l RoHS | CE
Standard Of Compliance : UNE 21186

Designed in accordance with NFC 17 102
Working Principle of THOR LPR
THOR SLPR is designed in such a waythat the sum of its parts works in tandem to attract and capture lightning strikes in an efficientway.
When the downward leader approaches the structure and creates an electricfield to enable free movement of charges, the internal design of THOR SLPR helps to increase the quantity of emitted charges by reducing and limiting corona in the initial stages of lightning. The charges stored in THOR SLPR will not be wasted in the developing stages of lightning as it is designed to provide zero surface area for corona to occur. Once THOR SLPR gets fully charged, a very powerful upward streamer with high charge density of longer length is released from THOR SLPR which couples with the downward leader from lightning, at a very high distance from the structure, which it is protecting. HenceTHOR SLPRis able to protecta largerarea.
Recent research shows when lightning strikes any object, it creates secondary flashes. THOR Sl_PR is designed with SFCH which captures any secondary flashes that may occur during a lightning strike thus preventing these secondary flashes from causing damage‘
THOR SLPR has been developed in such a way that it requires no maintenance and Works in alt types of atmospherlccondition.
SLPR : Safe Llghning Protecflon Rod

SFCH : Side Flash Capture Head
Radius Of Protection (Rp)
The radius of protection is the distance between the point where you want to place the rod and the further pointfrom the structure or building we want to protect for calculating the radius of protection, It is very important to get the triggering advance time value of the device.
Triggering Advance Time (Delta)
The triggering advance time is defined as the difference in triggering time of an early streamer lightning rod and a simple tranklin rod obtained when both rods exposed in the same atmospheric and electrical condition
A = TSR-TESE .v\/here,
TSR = The mean triggering time ofthe upward leader of a simple lightning rod.
TESE = The mean triggering time of the upward leader of a ESE lightning conductor.
Calculation for Radius of Protection
The protection radius of an early streamer emission air terminal is calculated using the following equation

Rp = \/2rh ~ h2 +Δ (2r + Δ )for h>-5m

Δ= TriggringTime

r(m) = 20m for L-1

= 30m for L-2

= 45m for L~3

= 60m for L-4

Installation Method For THOR Safe Lightning Protection Rod

• Unpack the THOR SLPR from the box
• Tighten the base coupler of THOR to the top of the mast (l\/last Coupler)
• Connect the down conductor to the side of the base coupler using the provided LN Key arrangement
• Erect the mast using toundation bolts to the top of the building, securely
• Run the down conductor along the length of the mast, and onward along the height of the building and connect it to the dedicated earthing tor THOR SLPR
• Attache A.L.l.C.E to the wall near the dedicated earthing pit at a convenient height (5 feet or eye level)
• Pass the down conductor through A.L.|.C.E before attaching it to the dedicated earthing tor THOR SLPR
• The down conductor needs to be attached to the structure by way of insulators and clamps every 1 metre for support.
• It is recommended to connect all the metal bodies present in the vicinity of THOR SLPR to prevent side flashes during a lightning strike.
• Provide a test link above A.L.l.C.E tor periodic maintenance and testing.

Our Recommendations

• The mast should have a minimum length of 4.5 l 6 metre and should be constructed of FRP or GI / SS
• A,L.|.C.E should be installed at a height of 5 feet from the ground level (eye level)
• The down conductor should be a Single Core Insulated Flexible Copper Cable of 70 sqmm cross section minimum, or a Strip of Copper or G.l With a minimum cross section of 70 sdmm.
• The shortest possible path should be chosen for the down conductor.
• The THOR SLPR needs to be connected to its own dedicated tripodal earthing systern.