TRSB 3.3 Lightning Rod


Lightning  Rod  is  used  for  protecting  the  buildings  to  avoid  lightning  strike.  Lightning rod grounding  plays  an  important  part  of  the  air  termination  network  of  a  lightning  protection system.

Building Lightning Rod, alternate named lightning protection devices, used for protecting  the

building when raining and lightning .The  lightning  rod  installed  on  the  building  and  transfer  the electric  to  earthing  metal  to  protect  the  building . Our  lightning  rod  comply  with  UNE 21.186 NFC 17. 102 or EN 50.164/1 EN 62.305 standard . Customized lightning rod available.


Working Principles:

During thunderstorm conditions when the lightning down-leader is approaching ground level, an upward leader may be created by any conductive surface. In the case of a passive lightning rod, the upward leader propagates only after a long period of charge reorganization. In the case of PDC series, the initiation time of an upward leader is greatly reduced. The PDC series generates controlled magnitude and frequency pulses at the tip of the terminal during high static fields characteristic prior to a lightning discharge. This enables the creation of an upward leader from the terminal that propagates towards the downward leader coming from the thundercloud.

Part I: Protection range of direct lightning arrester Rolling ball radius(R):

Class Ⅰ lightning protection building 30m(National buildings, arsenal, etc.)
Class Ⅱ lightning protection building 45m (Government institutional units, etc.)
Class Ⅲ lightning protection building 60m(civil buildings, etc.)
Part Ⅱ: Selection of lightning protection type


Type      R Lightning  Rod  height (h)/ protecting  range (x)
Class Ⅰ  30m 30/30 15/25 10/22.3
Class Ⅱ   45m 45/45 22.5/38 10/28
Class III    60m 60/60 30/51.9 10/33
Part Ⅲ: Caculation of protecting range
Protecting range                X
Lightning rod height         H
Rolling ball radius              R


Typical MAST Installation Arrangement
For Cantilevered Mast