colors codes change why

[iwire]

also interesting..neutral is bonded indicating service...but conduit is not;

Yes, those line side conductors are service conductors, they tie into a underground 208Y/120 underground network. This is common in many sections of Boston.

the pigtail fuse is priceless also..

That was part of a shunt trip set up that was disconnected at the time of my visit.

same guys did your NM job ??

No, 150 miles apart.

I especially like the bare ground wire in the top right, under the nail or screw used as a fastener for the box.

That is the grounding of the NM that is part of the shunt trip circuit. The NM leaves this service disconnect and goes up to a "Fire Alarm" pull station in the main lobby. If you pulled the station it would dump the service but it would not contact the FD or trip the buildings fire alarm system. At the time of my visit the shunt power had been killed but the useless pull station remains.

It is worth mentioning this was an identical set up in at least 5 buildings I visited that day.

 

[Besoeker]

I especially like the bare ground wire in the top right, under the nail or screw used as a fastener for the box.

for the wooden box....:wink:

 

[augie47]

at least they were consitant :smile:

 

[480sparky]

...........That is the grounding of the NM that is part of the shunt trip circuit.....

But still a 250.149(C) red tag.

 

[iwire]

But still a 250.149(C) red tag.

I was not defending it only explaining it.

 

[480sparky]

I was not defending it only explaining it.

I was just listing the code violation.

 

[dcspector]

What the heck was that?

FWIW I have not noticed Matt being anyones yes man.

I simply did not want this to turn into a stupid rule thing......Matt is cool and so am I...I have a list of stupid rules as well no biggy.

 

[hillbilly1]

I used to think that white, grey, and green was the only colors specified in the code, but somebody in this forum last year pointed out Article 517.160(5) which requires brown and orange for isolated circuit conductors. (2005 edition)

 

[jim dungar]

I understand where your coming from with that but it seems more likely he had some extra blue wire to use up. :smile:

Wow, looking at the whole picture makes a difference:grin::grin::grin:.

 

[mivey]

Pretty sure green is a hot here but I did not bother to check. :smile:

Not a big fan of the quick-and-easy phalanges meter?

 

[frenchelectrican]

Slightly related to the original topic....

A few years ago, UK changed the colours for wiring three-phase.
The existing and the two new options are shown below.

Not the reversed functions of Blue and Black in the first of the new options. Imagine the potential for confusion when an existing system has to be extended. Half of it will be in the old colours and half in the new - and the interface will have both.

It's just one of a number of bl00dy stupid things we have done in this country to "harmonise" with the European Union.
It's a triumph of monumental stupidity over common sense.

Besoeker.,

Unforeteally it the same story in France as well it drove us nutty as well .,


Merci,Marc

 

[frenchelectrican]

I understand where your coming from with that but it seems more likely he had some extra blue wire to use up. :smile:

That bright bleu conductor is the almost the excat the same as our European verison of bleu conductor really bright colour there.

sound like someone saved the bleu conductor from the European machinery ?? the fastest giveway is the MM2 size.

Merci,Marc

P.S. It look like 300mm2 conductor size

 

[benaround]

I used to think that white, grey, and green was the only colors specified in the code, but somebody in this forum last year pointed out Article 517.160(5) which requires brown and orange for isolated circuit conductors. (2005 edition)

Check out 504.80(C) light blue

 

[hillbilly1]

Check out 504.80(C) light blue

Cool, they didn't mention that one. I don't have the 2008 edition yet to see if any of this has changed.