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I wanted to know if during november or december there were here some discussions regarding lightning protection.
Hi,
You can find also very relevant info about lightning protection at the website of rfcomunnity, it was really helpfull for me.
AlineacionesAlcorcón: Manu camiseta del borussia Herrera; Rubén Anuarbe, Agus, Babin, ángel Sánchez; Fernando Sales, Mora, Rubén Sanz, Carlos Martínez; Miguélez y Quini. Nàstic: Rubén, Juste, Xisco, Arzu, Mingo, camiseta 2011 arsenal Morán, Seoane, Rodri, Longás, Peragón y Powel.AlineacionesAlcorcón: Manu camiseta del borussia Herrera; Rubén Anuarbe, Agus, Babin, ángel Sánchez; Fernando Sales, Mora, Rubén Sanz, Carlos Martínez; Miguélez y Quini. Nàstic: Rubén, Juste, Xisco, Arzu, Mingo, camiseta 2011 arsenal Morán, Seoane, Rodri, Longás, Peragón y Powel.
hi, we are every one know current shock is dangerious,therfore as per in your topic fuses has some application to controle the circuit by the fault of electrical holders,i think cyclindrical fuse is beter for LV.
Dear,
Thanks for your clarification but, on ATS panel we recommend to use 4P breaker to switch off the neutrel coming from the generator because, may be reverse current will pass on to the generator.
In Heat run test you are basically shorting the output terminals and checking the temperature of the machine whether it is exceeding the temperature limits or not. such a test is carried out at the rated values
100 % agree with ghali . but should have to pay attention if the motor is located in haz. the motor shall not overheat and surface temperature going beyond the temperature class in case the overload relay is not well set.
Hi Abdul,
I was browsing net found out your concern might be helpful to solve your problem.
Smorkos is correct. You should have consider by calcualting the actual short circuit current on the system(sym & assym value) and the bus bar holder. This is the basis for calculating the mechanical strenght of the bus Bus bar calcualtion to be safe and protect for max. short circuit current (KA) during fault condiotn. The formula is not easy you have to consider the following items:
EMF between bus bar
Bus bar arrangement
Mechanical forace action supporters
mechanical force or tensile strength on bus bar
flexure of bus bar
Thermodyanmic consideration
Those mentioned above shall be consider in calcualting the bus bar
TIp: Vendor has data and formula of bus bar size with respect to the total consumer Loas (amps)
As i can see and experience 35*4 is economically with a safe factor of 152% based on the Transformer rated current.
Hope this will help
Search through Australian (AS1768) or British standards on lightning protection and you will find answers as to what the sphere method is and how to apply it. Basically the rolling sphere method is a means of determining the area which will be protected by a lightning air terminal (Lightning rod) and thus a means of determining how many air terminals are required and where they need to be placed in order to protect a given area from lightning strike.
