dnguyen5
Member
- Location
- United States
Hi all,
First time poster here. I'm reviewing for the Electrical Power PE exam and a voltage drop question puzzled me. When referring to Chapter 9, Table 9, I'm not sure why there are two numbers inside the box. For clarification in Table 9 Chapter 9, when finding the zeffective at 0.85pf for a 250-awg uncoated copper wire in an aluminum conduit, the Zeff is 0.07ohms, but I'm not sure what the number above it (i.e. 0.230) represents and how it may play a role in a voltage drop calculation. Rather than be ignorant, I come for your insight.
Thanks for your help in advance.
Best,
Dan
First time poster here. I'm reviewing for the Electrical Power PE exam and a voltage drop question puzzled me. When referring to Chapter 9, Table 9, I'm not sure why there are two numbers inside the box. For clarification in Table 9 Chapter 9, when finding the zeffective at 0.85pf for a 250-awg uncoated copper wire in an aluminum conduit, the Zeff is 0.07ohms, but I'm not sure what the number above it (i.e. 0.230) represents and how it may play a role in a voltage drop calculation. Rather than be ignorant, I come for your insight.
Thanks for your help in advance.
Best,
Dan