TSTLP ESE terminal VS Conventional rod

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TSTLP-ESE LIGHTNING ROD VS Traditional Franklin Rod

Check Flash Video at: http://youtu.be/qDo7dXBOC8k

1, Technology of TSTLP-ESE Lightning rod : Very Latest based upon Early Streamer Emission

1, Technology of Conventional Rod               : Around 260 year’s old design based on natural occurring Corona.


2, Operation & Working Principle of TSTLP-ESE Lightning Rod:

A, The ionization device is charged via the lower electrodes using the ambient electrical field (several million volts/meter when storms are prevalent). This means the TSTLP-ESE lightning rod system is a fully autonomous system requiring no external power supply.

B, The ionization phenomenon is controlled by a device which detects the appearance of a downward leader: the local electrical field increases rapidly when a discharge is imminent.The TSTLP ESE lightning rod detects changes within the field, making it the first E.S.E. air terminal to react at the precise moment the downward leader develops from the cloud to the ground.

C, Early triggering of the upward leader using a system of spark ionization between the upper electrodes and the central tip. The TSTLP ESE lightning rod’s ability to trigger an upward leader ahead of any other protruding point within the protected area ensures it will be the preferential point of impact for the lightning discharge.

2, Operation & Working Principle of Conventional Rod :

Depends on naturally occurring Corona and hence the huge current flows through the rods and the down conductors which results in side flashes and earth potential rise. (i.e. always the rod will wait for lightning flash to fall on the tip of the rod). In case of factories which is using any chemicals, metals, etc they naturally produce charges & this may attract the lightning current on its metal parts. At this time, the metal part which is emitting charges becomes more active than the lightning rod which is inactive & the lightning current will hit on the metal part rather than hitting the lightning rod.


3, Radius Protection of TSTLP-ESE lightning rod:

Wider Radius Protection:The protection area Rp of TSTLP ESE lightning rod is calculated according to French Standards NF C 17-102_2011 Annexec C compliant.

The protection area depends on a number of factors:
 Gain in triggering time ΔT of the chosen TSTLP ESE Air Terminal which allows the ΔL value to be determined according to the formula 

The protection level required (I, II, III or IV) on a given site, according to the lightning risk assessment guide The actual height of the lightning air terminal above the surface to be protected (h).

3, Radius Protection of Conventional Rod:

Radius of protection with conventional rod is very very less and hence plenty of rods along with the down conductors are required. Added to this number of dedicated earth pits are required in turn to be connected in a ring method which will eventually increase the cost of the total project.

4, Down conductor that needs at TSTLP-ESE Lightning Rod System:

Since the current flow through the lightning rod to the ground is very less and hence only one down conductor i.e. 50 mm sq. /25x3mm strip is sufficient and earth potential rise is very less. (i.e., the voltage developed under the earth due to the lightning current will be always less because of low lightning current –for ex: 1 KA lightning current will develop 2KV with the earth resistance of 2 ohms. Whereas in conventional the voltage developed will be always more than 50 KV which will in-turn create problems to the CNC machine earthing, PLC earthing, Neutral earthing, etc).

4, Down conductor that needs at Conventional Rod system:

As huge current flows through the rods to the ground and hence at lot numbers of down conductors are required. Earth potential rise is also very-very high.


5, Earth pit that needs at TSTLP-ESE Lightning Rod System:

One or Two earth pits are sufficient.

5, Earth pit that needs at Conventional Rod system

Large numbers of earth pits are required.


6, Test of TSTLP-ESE Lightning Rod:

Tested in High Voltage Laboratory and working successfully all around the world.

6, Test of Conventional Rod:

No test certificates are available.


7, Installation of TSTLP-ESE Lightning Rod:

Easy to install.

7, Installation of Conventional Rod

Involved large installation cost & complicates the design to implement.


8, Maintenance of TSTLP-ESE Lightning Rod:

Maintenance free.

8, Maintenance of Conventional Rod:

Regular maintenance is required to ensure that the system is in place as there are lot many of connections are involved. Any loose connections broken in the loop will create a flash with the nearby wall or equipments,etc which will create a huge damage to the building or structures.

9, Life of TSTLP-ESE Lightning Rod:

Approximately 15 to 20 years irrespective of number of strikes.

9, Life of Conventional Rod:

Metal object and life depends upon the discharge current. No test has been carried out on the rod which is going to be installed.