- Reaction score
- 3,010
With reference to Voltage Drop calculations and Table F4(ii) OSG page 151.
When designing an installation the cable is selected, among other factors, so that the maximum operating temperature is not exceeded, in this case 6242Y T&E = 70C.
The table, titled "Voltage Drop (per ampere per meter) at a conductor operating temperature of 70C" then goes on list various installation reference methods.
So, bare in mind the table is has been composed based on the maximum working temperature of the cable.
The potentially Stoopid Question is -
Other than increased impedance due to the elevated temperature what relevance does the Ref. Method have when determining Voltage Drop.
When designing an installation the cable is selected, among other factors, so that the maximum operating temperature is not exceeded, in this case 6242Y T&E = 70C.
The table, titled "Voltage Drop (per ampere per meter) at a conductor operating temperature of 70C" then goes on list various installation reference methods.
So, bare in mind the table is has been composed based on the maximum working temperature of the cable.
The potentially Stoopid Question is -
Other than increased impedance due to the elevated temperature what relevance does the Ref. Method have when determining Voltage Drop.