Junior Member
Posted January 25, 2018
Pro Subscriber
• Codes and Standards
34. In accordance with NETA and IEEE standards the correct maintenance test voltage (dc) for 5KV rated EPR 133% insulation level cable is?
Your Answer: 14kV
Correct Answer: 11kV
Help: NETA-MTS 2015 TABLE 100.6.1
Is this correct as per NETA/ATS 2017. The way I am reading the standard it should be 36kV dc. Is this correct?.
Junior Member
Posted January 25, 2018
Pro Subscriber
The question is looking to a maintenance voltage not acceptance.Originally Posted by lfmontoyas
Junior Member
Posted January 25, 2018
Pro Subscriber
I am looking at NETA ATS-2017 table 100.6.1 and it says that for 5kV rated cable the maximum DC field Test Voltage During/After Installation for 133% Insulation Level is 36kV. I am trying to understand where the 11kV answer comes from. Any idea?.
Junior Member
Posted January 25, 2018
Pro Subscriber
You need to look at the NETA MTS table 100.6 which is the maintenance standards. The ATS is acceptance testing which will be a higher value to ensure reliability.
Junior Member
Posted January 25, 2018
Pro Subscriber
Very Thankful. Are you memorizing all these values?. I am not sure what values to memorize?.
Junior Member
Posted January 25, 2018
Pro Subscriber
Im like a walking code book idk what it is but yea Ive got a lot of these number memorized even before i started studying for my NETA exams. I take my 3 on Monday. Best of luck!
NETA Level III
Posted January 25, 2018
Pro Subscriber
Here is the table from 2015 MTS...
Junior Member
Posted January 17, 2019
Pro Subscriber
The year matters.
Member
Posted January 31, 2019
Funny thing is in the field I never do dc for service age cable anymore, everything is vlf. It will still be on the test though.
There are some hold-out customers that still use DC. Mainly city utilities where politics make it difficult to change the specs. That being said, some old site engineers aren't convinced either. I test DC a couple times a year for new cable.
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