Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
(OP)
Hello All;
I was just interested in some opinions on Arc-Resistant switchgear being utilized in your facilites as part of an Arc-Hazard mitigation strategy. The basic argument being that most arc-flash incidents happen when the door to the cubical is open, so what good is an arc-resistant enclosure.
I would appreciate your thoughts.
Thanks
I was just interested in some opinions on Arc-Resistant switchgear being utilized in your facilites as part of an Arc-Hazard mitigation strategy. The basic argument being that most arc-flash incidents happen when the door to the cubical is open, so what good is an arc-resistant enclosure.
I would appreciate your thoughts.
Thanks





RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
Arc-resistant switchgear will unquestionably be safer than standard switchgear. Whether it is worth the added cost probably depends on the situation.
It is true that the doors must be closed to get the full benefit of arc-resistant switchgear. But if the switchgear is located in area that frequently has people within the flash hazard boundary, I think there is merit in spending the extra money for arc-resistant gear. It also provides a safety factor if you have local control of breakers at the cubicle.
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
respectfully
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
I think the incidents which are officially reported tend to be the ones where injury to personnel occurs, and the evidence seems to indicate that most personnel injuries happen when doing live diagnostic testing or maintenance. In my experience the failures initiated by moisture / dust / critters / etc tend to fall in the category of 'stuff' happens
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RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
Certainly incidents can happen almost any time - doors opened or closed - but if it does happen, my wish would be (if I were in front of it) that the doors were closed and that the cubicle would be arc-resistant, or that something is in place to minimize the danger. If you have lost friends or co-workers in such an event, or seen a substation afterwards, you'll be in favour of it - I have seen too many times how substations look after electrical explosions.
It might be expensive, and it might seem to be totally unnecessary after service life, but if something does happen it can be worth the extra costs. A human life can't be replaced.
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RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
RE: Arc-Resistant Switchgear in Arc-Hazard Mitigation Scheme
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