Hubbell Power Systems Blog

7 Questions to Identify the Right Elbow

Written by Todd Neville | Jul 16, 2018 2:41:00 PM

It can be a challenge to identify the right elbow for varying applications. There are so many different points to consider when planning for your utility. Therefore, we put together seven simple questions to help in the process of picking the right elbow.

1. What is the elbow type? 

  • Loadbreak
  • Deadbreak

2. What is the voltage class?

  • 15kV
  • 25/28kV
  • 35kV

3. What is the insulation thickness of the cable?

  • 15kV: 175 mil 100%, 220 mil 133%
    25kV: 260 mil 100%
    35kV: 345 mil 100%
4. What is the conductor size?
  • #6 thru 1250kcmil 
5. What is the conductor type?

6. What is the metallic shield type?
  • Concentric Neutral 
  • Copper Tape
  • Drain Wire
7. Is a Test Point Required?
  • Yes
  • No

Once you know these seven things, you should be able to correctly select the elbow you need.