I'm an engineer at a HV insulator manufacturer.
We have one customer in California that requires a high charpy value for the transmission line hardware (15ftlbs at 0deg F). No other customers require this charpy value.
My metal hardware is 1045 normalized steel and cannot meet the requirement.
Does anyone know why only one power utility in Calfornia requires such a Charpy? Possibly for earthquakes?
I understand charpy and the transition temperature, but is there a practical reason for such a requirement? And yes, the utility itself is not sure why it is there.
Thanks in advance.
We have one customer in California that requires a high charpy value for the transmission line hardware (15ftlbs at 0deg F). No other customers require this charpy value.
My metal hardware is 1045 normalized steel and cannot meet the requirement.
Does anyone know why only one power utility in Calfornia requires such a Charpy? Possibly for earthquakes?
I understand charpy and the transition temperature, but is there a practical reason for such a requirement? And yes, the utility itself is not sure why it is there.
Thanks in advance.
