|
1 members (Scott35),
184
guests, and
13
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
Joined: Dec 2000
Posts: 4,294
OP
Member
|
300.5 (D)(3) Requires a warning ribbon at least a foot above unencased service conductors that are buried more than 18" deep. Don't you think that this should be required on other underground installations as well?
|
|
|
|
Joined: May 2004
Posts: 116
Member
|
You mean this isn't a "warning" to AHJs? (grin)
Steve
Thanks Steve
|
|
|
|
Joined: Jul 2002
Posts: 8,443 Likes: 3
Member
|
Scott, Did you get that strip from the local cemetary?.
|
|
|
|
Joined: Jan 2005
Posts: 5,445 Likes: 3
Cat Servant Member
|
I think the proper cite(s) would be 90.2 and 90.4. (Especially in regards to enforcing non-existant requirements or the use of no-existant equipment).
|
|
|
|
Joined: May 2003
Posts: 2,876
Member
|
Upon finding this tape in the ground do you hand dig, or continue with a back-hoe?
Mark Heller "Well - I oughta....." -Jackie Gleason
|
|
|
|
Joined: Dec 2000
Posts: 4,294
OP
Member
|
OK, maybe the example is a little silly, but I think my question is a valid one.
Why should it be a requirement to put a warning ribbon above a 100 Amp residential 120/240 Volt service lateral, maybe fed by a 25 KVA transformer, when there's no requirement to provide the same type of warning above a 1000 Amp 480 Volt feeder?
Is my reasoning even goofier than usual? What am I missing here?
|
|
|
|
Joined: Jan 2003
Posts: 4,391
Moderator
|
IMO your right, it makes no sense to me that this only applies to service conductors.
Bob Badger Construction & Maintenance Electrician Massachusetts
|
|
|
|
Joined: Dec 2004
Posts: 209
Member
|
You guys are thinking too much again!
|
|
|
|
Joined: Sep 2004
Posts: 167
Member
|
Scott Read 300.5(D) It is refering to direct buried conductors and cables. This does not apply to service conductors or laterals in conduit.
I've never heard of any direct buried cables encased in concrete though.
I agree that UG conductors in general need more attention from the code in regards to protection.
Larry LeVoir Inspector City of Irvine, CA
|
|
|
|
Joined: Nov 2000
Posts: 2,148
Member
|
It also doesn't make any sense that this only applies to condutors installed in a trench, not those installed by directional boring. Don
Don(resqcapt19)
|
|
|
Posts: 99
Joined: August 2003
|
|
|
|
|