/Lounge Blogs/Current Flow/SPD Calculated Risk Assessment - How do you work out length of supply cables?
29, May, 2019
SPD Calculated Risk Assessment - How do you work out length of supply cables?In answer to a viewer request, Dave Austin and Gary Gundry look at the Calculated Risk Assessment in Section 443.
In this video Dave Austin and Gary Gundry delve into Section 443 and the Calculated Risk Assessment that is used to determine if SPDs arn't necessary. The viewer who requested this wanted more detail on determining the value of Lp - which certainly causes some confusion.