The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
Today at 04:24 PM
On Delay Relay with Auto Reset
by Potseal
Yesterday at 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm≤ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 15
HotLine1 10
Texas_Ranger 8
Trumpy 8
sparkyinak 7
Who's Online
0 registered (), 218 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#201226 - 05/20/11 01:07 PM K&T Inspection
mr_electrician Offline
Member

Registered: 06/22/07
Posts: 106
Loc: London, Ontario
Hi, I had a request to do an inspection on some knob and tube for an insurance company today. I don't get into knob and tube for the obvious reason of it being impossible to touch without the insulation falling off and creating an even bigger hazard! How would you go about inspecting K&T. Would you megger each wire to check the integrity of the insulation or would you walk away from it??
_________________________
Never trust an electrician with no eyebrows!!

Top
2014 / 2011 NEC & Related Books and Study Guides
#201227 - 05/20/11 07:32 PM Re: K&T Inspection [Re: mr_electrician]
Tesla Offline
Member

Registered: 06/16/04
Posts: 1280
Loc: Sacramento, CA
It would seem that the insurer is looking to transfer the liability over to you.

I hope you can bear the strain.
_________________________
Tesla

Top
#201238 - 05/21/11 08:01 PM Re: K&T Inspection [Re: Tesla]
KJay Offline
Member

Registered: 11/27/07
Posts: 763
Loc: MA, USA
Around here, K&T is a big problem for home owners that want to make improvements, because if itís in exterior walls or ceilings, insulation contractors wonít install blown-in insulation until they get a formal letter from an EC saying that all K&T has been removed. These days, the only way Iíll touch K&T is if Iím disconnecting it and tearing it out.

Top
#201270 - 05/23/11 09:00 PM Re: K&T Inspection [Re: mr_electrician]
jay8 Offline
Member

Registered: 07/28/05
Posts: 183
Loc: Vancouver, BC
knob and tube is still acceptable for existing installations. Things to look out for are if there has been any additions to knob and tube circuits which likely were done incorrectly. Also, ensure the K & t branch circuits are GFI protected. Another potential problem is lighting fixtures, where the insulation will likely have broken down due to heat. All you can do is inspect all outlets, examine whatever you can in the attics etc, identify the fact that the house would not meet current code and clearly state the inspection is that only - ie it is not a performance guarantee or certification of safety.

If you read the fine print on some of these home inspector reports, they absolve themselves of any resposibility if they miss something. Even a fire alarm system inspection states the devices were working at time of inspection, if it is not working the next day the inspection company can say someone may have tampered with it after the inspection.Make a list of every outlet in every room and main service, and state what you have done with it during inspection. For example remove, visually inspect, confirm voltage, confirm overcurrent protection, number of outlets on circuit, condition of wiring and device. Final comments would include where the residence does not meet current code, any glaring safety issues you see and recommendations.

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals