| Arc Flash Forum https://brainfiller.com/arcflashforum/ |
|
| Arc Flash Protection https://brainfiller.com/arcflashforum/viewtopic.php?f=12&t=397 |
Page 1 of 1 |
| Author: | bmonroe1 [ Tue Apr 07, 2009 4:13 pm ] |
| Post subject: | Arc Flash Protection |
Working in a Mobile Home Factory, the M/C in the house traveling down the line has to be open due to testing, I installed from the load center power boxes down the line with 20 amps GFCI with a 5 miliamp protection, would this be enough to keep our employees working around the m.c from the required PPE? |
|
| Author: | haze10 [ Tue Apr 07, 2009 6:10 pm ] |
| Post subject: | |
M/C = Metal Clad or something else? Arc Flash is not current restricted, its voltage restricted. You'd have to give more specifics for a good analysis. What safety precautions other than the GFI are being used, ie, caution tape, barriers, employee training, etc. Can you set up a test transformer and test at 24VAC instead of 120/240? |
|
| Author: | bmonroe1 [ Wed Apr 08, 2009 3:21 am ] |
| Post subject: | |
The m/c is meter center. To hook up a house on line, we drop a pig tail or extension cord from the meter box using a DP 20 amp GFCI breaker. The breaker trips at very little resistance. |
|
| Author: | Zog [ Wed Apr 08, 2009 6:00 am ] |
| Post subject: | |
bmonroe1 wrote: The m/c is meter center. To hook up a house on line, we drop a pig tail or extension cord from the meter box using a DP 20 amp GFCI breaker. The breaker trips at very little resistance.
A GFCI trips on an imbalance on the line and netrual, has nothing to do with arc flash protection or reduction. |
|
| Author: | haze10 [ Wed Apr 08, 2009 4:03 pm ] |
| Post subject: | |
I would look for a different method of testing. Can you not use 48VAC or some other low voltage 24VAC, 'This would be under 50V and out of arc flash range. |
|
| Page 1 of 1 | All times are UTC - 7 hours |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|