CVM or RSM
CVM or RSM
(OP)
Hello
We are designing a new power plant and one of the members of the team has required to use the CVM method for the design of the Lightning system.
I´ve always used the RSM method and not the former mentioned. Also I read in an article that the CVM is not advised by many designers. What opinion do you experts have on this method?
In Annex B.3.2 of NFPA 780 only the RSM is mentioned and not the CVM
We are designing a new power plant and one of the members of the team has required to use the CVM method for the design of the Lightning system.
I´ve always used the RSM method and not the former mentioned. Also I read in an article that the CVM is not advised by many designers. What opinion do you experts have on this method?
In Annex B.3.2 of NFPA 780 only the RSM is mentioned and not the CVM
RE: CVM or RSM
We used the manufacturers published pattern and intensity charts to determine our lighting source values.
Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!
RE: CVM or RSM
http://www.luisalbanes.com
RE: CVM or RSM
Conclusions
The purpose of this paper was to resolve a question posed by [Abidin and Ibrahim
2004] regarding the effectiveness of a LPS based on the CVM air terminals optimally
positioned on buildings to include the competing features of the building. Toward
this end, two research objectives were addressed. The first was to use lightning
strike data from 24 buildings in Kuala Lumpur, Malaysia, that were gathered over a
two year period to estimate the extent of protection provided by CVM air terminals
optimally positioned on buildings. The second objective was to investigate the
validity of the various underlying semi-empirical theories for CVM air terminals.
Relative to the first objective, our statistical analysis of the strike data recorded
on the 24 buildings for 37 combined years of service indicated that the observed
efficiency is 90.7% with CVM air terminals optimally positioned on buildings in
Kuala Lumpur
Reference: https://arxiv.org/pdf/1602.01395.pdf
http://www.luisalbanes.com
RE: CVM or RSM
I guess my post didn't make much sense.
Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!