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Electrical Inspections Contains discussions about electrical systems. This includes receptacles, panels, wiring, etc.

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  #1  
Old 9/29/09, 6:38 AM
Billy Boerner's Avatar
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Default "Live" Knob and Tube

Today's inspection was a first for me. To date I've never came across Knob and Tube wiring which was "live". The home has a 125AMP max panel and another panel in the stairway of the basement which has four fuses I'm assuming powering the Knob and Tube. The home was built in 1929. How should I call this out. Please take a look at the pictures below and let me know what issues you see. I'm still trying to learn everything about electrical. Please be specific so I can understand exactly what your talking about. Thanks everyone I sincerly appreciate you sparky guys and everyone else.
Attached Thumbnails
live-knob-and-tube-img_1388.jpg   live-knob-and-tube-img_1417.jpg   live-knob-and-tube-img_1406.jpg   live-knob-and-tube-img_1404.jpg   live-knob-and-tube-img_1427.jpg  




Bill Boerner
STL Home Inspection Services
Serving St. Louis/Surrounding
(314) 805-2137
billy.boerner@gmail.com
http://www.stlhomeinspector.com



Last edited by bboerner; 9/29/09 at 6:42 AM..
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  #2  
Old 9/29/09, 7:31 AM
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Default Re: "Live" Knob and Tube

Quote:
Originally Posted by bboerner View Post
Today's inspection was a first for me. To date I've never came across Knob and Tube wiring which was "live". The home has a 125AMP max panel and another panel in the stairway of the basement which has four fuses I'm assuming powering the Knob and Tube. The home was built in 1929. How should I call this out. Please take a look at the pictures below and let me know what issues you see. I'm still trying to learn everything about electrical. Please be specific so I can understand exactly what your talking about. Thanks everyone I sincerly appreciate you sparky guys and everyone else.
On the panel the top left 15 AMP breaker has a single strand aluminum brach circuit attached to it.



Bill Boerner
STL Home Inspection Services
Serving St. Louis/Surrounding
(314) 805-2137
billy.boerner@gmail.com
http://www.stlhomeinspector.com


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  #3  
Old 9/29/09, 7:37 AM
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Default Re: "Live" Knob and Tube

Billy,

Whenever I encounter a LIVE K&T system, I simply tell my clients that the there are a lot of insurance companies who will not insure them with this type of wiring. I then give them a link to my website...http://www.masscertifiedhomeinspections.com/?D=99 , and let them decide.
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  #4  
Old 9/29/09, 7:37 AM
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Default Re: "Live" Knob and Tube

Excellent. Do you see any issues within the main panel?



Bill Boerner
STL Home Inspection Services
Serving St. Louis/Surrounding
(314) 805-2137
billy.boerner@gmail.com
http://www.stlhomeinspector.com


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  #5  
Old 9/29/09, 7:38 AM
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Default Re: "Live" Knob and Tube

Quote:
Originally Posted by bboerner View Post
On the panel the top left 15 AMP breaker has a single strand aluminum brach circuit attached to it.
Keep in mind, this could be an alloy coated copper wire.

You can confirm this by looking for a neutral wire with the same aluminum coating.

There are times where I can see the ends of the neutral wire (where it was cut) and confirm my suspicions.
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  #6  
Old 9/29/09, 7:40 AM
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Default Re: "Live" Knob and Tube

Good to know. Anything else with the panel that you see?



Bill Boerner
STL Home Inspection Services
Serving St. Louis/Surrounding
(314) 805-2137
billy.boerner@gmail.com
http://www.stlhomeinspector.com


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  #7  
Old 9/29/09, 7:42 AM
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Default Re: "Live" Knob and Tube

Quote:
Originally Posted by bboerner View Post
Excellent. Do you see any issues within the main panel?

Where's the disconnect? Is this LSE?
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  #8  
Old 9/29/09, 9:35 AM
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Default Re: "Live" Knob and Tube

Quote:
Originally Posted by dvalley View Post
Keep in mind, this could be an alloy coated copper wire.

You can confirm this by looking for a neutral wire with the same aluminum coating.

There are times where I can see the ends of the neutral wire (where it was cut) and confirm my suspicions.
The forth pix shows the aluminum neutral wire. David is correct about the insurance company not insuring home with K&T. Last home that had it the client couldn't get insurance until K&T was removed.



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  #9  
Old 9/29/09, 9:39 AM
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Default Re: "Live" Knob and Tube

Looks like you have a ground an neutral wire under the same screw in the last picture
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  #10  
Old 9/29/09, 9:50 AM
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Default Re: "Live" Knob and Tube

Billy, here are a couple things I see.
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live-knob-and-tube-panel.jpg  



David

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  #11  
Old 9/29/09, 9:54 AM
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James E. Braun, CMI James E. Braun, CMI is offline
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Default Re: "Live" Knob and Tube

Also the wires under the 40 amp breaker look too small, compare to the rest of the wires. It is always a good idea to have the neutral wire and the ground wires on separate bussbars if you want to be choosy.
Is the 60 amp breaker going to the subpanel?
Is your disconnect at the meter?
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  #12  
Old 9/29/09, 9:58 AM
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Default Re: "Live" Knob and Tube

Here are a few more.
Attached Thumbnails
live-knob-and-tube-panel2.jpg  



David

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  #13  
Old 9/29/09, 9:58 AM
wsiegel wsiegel is offline
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Default Re: "Live" Knob and Tube

Here in Fl, especially if they are insured with Citizens, that fuse panel would need to be replaced with a breaker panel.

FYi - fuse panels (or breaker panels) are not made to last forever. I would recommend replacement regardless
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  #14  
Old 9/29/09, 10:00 AM
wsiegel wsiegel is offline
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Default Re: "Live" Knob and Tube

Quote:
Originally Posted by jbraun View Post
Also the wires under the 40 amp breaker look too small, compare to the rest of the wires. It is always a good idea to have the neutral wire and the ground wires on separate bussbars if you want to be choosy.
Is the 60 amp breaker going to the subpanel?
Is your disconnect at the meter?
Why would you call that beeing choosy. That is something that needs to be corrected.
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  #15  
Old 9/29/09, 10:02 AM
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Default Re: "Live" Knob and Tube

Do I see a single pole 30 amp breaker? Paul mentioned these in his video. Are these unique? Any problems with these?



David

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NYS DEC Cert # T4865884
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HouseAbout Home Inspections
HouseAbout on Facebook
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