Originally Posted By: mbutcher
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http://www.nachi.org/bbsystem/usrimages/D/DSCF0002.JPG ]
[ Image: http://www.nachi.org/bbsystem/usrimages/D/DSCF0003.JPG ]
http://www.nachi.org/bbsystem/usrimages/D/DSCF0002.JPG ]
[ Image: http://www.nachi.org/bbsystem/usrimages/D/DSCF0003.JPG ]
Originally Posted By: Greg Fretwell
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The end burnt off?
What does the other one look like?
Originally Posted By: jmyers
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Could be they fell a little short on wire.
–
Joe Myers
A & N Inspections, Inc.
http://anii.biz
Originally Posted By: roconnor
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| jmyers wrote: |
| Could be they fell a little short on wire. |
That would be my guess too.
--
Robert O'Connor, PE
Eagle Engineering ?
Eagle Eye Inspections ?
NACHI Education Committee
I am absolutely amazed sometimes by how much thought goes into doing things wrong
Originally Posted By: jtedesco
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Backfed breaker is not installed to be safe and the use of the aluminum and copper splices together under the split bolt cannot be ascertained.
Hire an electrician to evaluate. The picture of the close up should be shown in the correct position and not on its side. I enlarged and rotated this image and was able to see where the aluminum at the termination was with less strands,
Reference for this:
110.14 Electrical Connections.
Because of different characteristics of dissimilar metals, devices such as pressure terminal or pressure splicing connectors and soldering lugs shall be identified for the material of the conductor and shall be properly installed and used.
Conductors of dissimilar metals shall not be intermixed in a terminal or splicing connector where physical contact occurs between dissimilar conductors (such as copper and aluminum, copper and copper-clad aluminum, or aluminum and copper-clad aluminum), unless the device is identified for the purpose and conditions of use.
--
Joe Tedesco, NEC Consultant
www.nachi.org/tedescobook.htm
Originally Posted By: Greg Fretwell
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I do have problems “reading” these pictures but this looks like an Ilsco tap.
I was guessing it might have overheated, just because the other one looks bad too and that they cut off the bad section, requiring a pigtail.
Originally Posted By: jtedesco
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Close Up of the Problems
--
Joe Tedesco, NEC Consultant
www.nachi.org/tedescobook.htm
Originally Posted By: jmyers
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| Quote: |
| Backfed breaker is not installed to be safe and the use of the aluminum and copper splices together under the split bolt cannot be ascertained. |
--
Joe Myers
A & N Inspections, Inc.
http://anii.biz
Originally Posted By: tallen
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| jmyers wrote: | ||
| Joe T,
Wondering about the backfed breaker portion of this statement, could you please clarify?
|
Joe: I think this is what JT is talking about.
2005 NEC 408.36(f)
Back-Fed Devices.
Plug-in-type overcurrent protection devices or plug-in-type main lug assemblies that are back fed shall be secured in place by an additional fastener that requires other than a pull to release the device from the mounting means on the panel.
Originally Posted By: jtedesco
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Joe
For Reference Only:
| Quote: |
| 408.36(F) Back-Fed Devices. Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are backfed and used to terminate field-installed ungrounded supply conductors shall be secured in place by an additional fastener that requires other than a pull to release the device from the mounting means on the panel. |
I see where the original main lugs for Phases A & B are gone. That is probably why this mess shows the connections to the load side of the CB.
Is there a main disconnecting means ahead of this panelboard?
In either case: Recommend that a qualified sparky make the repairs this time.
--
Joe Tedesco, NEC Consultant
www.nachi.org/tedescobook.htm
Originally Posted By: tallen
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Originally Posted By: Greg Fretwell
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If there is no disconnect before this panel the problem is worse. That 100a breaker is not suitable as service equipment. The SE rated breaker is a double wide unit that takes 4 breaker slots.