ANSI/NETA Standard for Acceptance Testing Specifications for Electrical Power . Specifications have been published in , , , , and Portage, Mich.-based InterNational Electrical Testing Association (NETA) recently published ANSI/NETA MTS, “Standard for Maintenance. PREFACE (continued). ANSI/NETA MTS Optional Tests. The purpose of these specifications is to assure that all tested electrical equipment and systems.
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If you’re around a major industrial area, testing companies, both NETA and otherwise, may be available. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Having dealt with this before, it is my experience that the simple act of removing a molded-case breaker for testing, then replacing it in its original location is a high-risk exposure in that many connections will not be restored properly. Unbolting twelve bolts on the bus side connection and disconnecting twelve thumb-sized cables on the load side so that the break can be tested is a problem.
Lastly, and this pains me to say, a lot of the ‘test technicians’ who perform this work may not be as capable as wed like them to be. Most if not all of the electrical equipment and Molded Case CB’s have been in place for 25 years without even being exercised. Improper or inadequate maintenance can result in increased opening time of the overcurrent protective device, thus increasing the incident energy.
Quote Circuit Breaker Analyzer site The system will measure the first movement and capture the peak amplitude of the contacts parting and stopping. Disabling the trip unit and turning the local breaker into a switch controlled by a protective relay was a good solution in that situation. Have them put that in their pipe and smoke it We still had to make sure the trip elements works, but a functional test of the trip was way easier to perform than pulling a breaker out of the unit to test.
Ah, the prospects of retirement Thanks for the tip! I have been working on them.
Without validating that arcing time also remains acceptable, I fail to see how the arc flash study can be validated. I had tried a similar situation many years ago to address reliability problems with local generator breakers in rental equipment. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. In my area several years ago one of the large insurers was very proactive about making sure their customers did the right thing, now days they wait until they get a claim, then one of the first things they ansi-jeta is if you’ve done your recommended maintenance, no records, no claim.
Students Click Here Join Us! Some added features helped sell the idea to their management, mt-s2007 better fault recording, ability to use relay data for metering, ability to test if a test switch installed with minimal service disruption, and ability to easily change settings for service access arc flash settings. Red Flag This Post Please let us know here why this post is inappropriate.
ANSI/NETA MTS REQUIRED? – Electric power & transmission & distribution – Eng-Tips
Having been in this business, that runs up mst-2007 bill pretty fast. I have to bring in a contractor with a test set that is towed in on a trailer. Outside those areas, you’re going to be paying for expenses and mileage in addition to personnel cost and test equipment cost. But there are a lot of competent testing organizations, including groups associated with manufacturers that are not NETA members. I’m interested in seeing other thoughts. The scary part, though, is that I have been in the electrical testing biz since and had a NETA Level IV certification before changing to the present job.
As I said before, a large part of my issue is with medium and large nts-2007 frame molded case circuit breakers, some of which have relatively new integral solid state trip devices. Cost of repair, maintenance and the occasional additional costs due ansi-neeta downtime of failure of customer equipment was eating away at an already small margin.
He amsi-neta have to travel with said trailer for several hundred miles to my site in Armpit, Mississippi, for which I pay, and when he gets there, he’s pulling out the ONLY breaker feeding my station, so I’m off-line on an interstate pipeline, for a scheduled outage, all the while hoping ansi-nea something doesn’t get broken by that remove-test-replace cycle.
Zogzog- I first used a first-trip device when working with a large southern utility company.
Ansi neta mts 2007 frequency of maintenance tests
There has never been an Electrical Maintenance Program since this company was first formed. There is no specific requirement that NETA standards or NETA-certified contractors be used for maintenance testing, although that is certainly the main organization in the US that deals with testing of electrical equipment. It is administered and enforced by OSHA, who are frequently described as “toothless dogs” that are all bark and no bite, but here’s the catch.
Promoting, selling, recruiting, coursework ansi-net thesis posting is forbidden. I also followed them, correcting some of the issues created, including more than a few here connections to power circuit breakers were not properly made up following ‘maintenance’.
Are you an Engineering professional? Others have the electro-thermo-mechanical devices. Still go into a lot of facilities where regular testing and maintenance is not being done, some figure a label warning of arc flash hazard is enough and it is the electricians problem ani-neta figure it out. Maintenance, tests, and inspections shall be documented. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
Yes, for the most part. Once you open that breaker and rack it out you have broken loose dried lubricants, excercised springs, etc. However, here is the issue with NETA tests, they require the breaker to be opened and removed from service to test trip times, which does not represent a real world condition.
I think you are basically correct. I am changing our engineering standards to require future installations to employ drawout power breakers for major loads, but we use many smaller power panels and switchracks and those feeder breakers will need to be tested to validate their condition for arc-flash. I manage the electrical side of things for thirty-odd natural gas compression facilities, many of which have volt equipment dating back to the early ‘s.
Ansi neta mts frequency of maintenance tests
Download Now White Paper: Close this window and log in. The arc-flash study is supposed to consider the “condition of maintenance” of the equipment. By joining you are opting in to receive e-mail.