NEC to JEAC

[RonaldM]

Is anyone familiar with the JEAC (Japan Electric Assoc. Code) and how it may or may not relate to the NEC.
I was under the impression that the NEC had pretty much been accepted as an international standard.
We have multiple workstation in a room, (raised floor, not a plenum) and want junction boxes ( with 3 or 4 branch circuits) placed under the floor at strategic locations and use liquid tight to connect the floor boxes for power.
This is to minimize the clutter under the floor.
The Japanese contractor is saying he must used Galvanized conduit for this wiring.
Any replies are appreciated

Ron M

 

[daleuger]

I lived in the states all my life until about 8 months ago. We go by a completely different code book here in Canada, even though a lot (but not all) of the material and practices are essentially the same. I would imagine that's highly possible on a different continent as well. It's taking some getting used to. They're more thorough/clear on some things and less on others.

 

[buddhakii]

So use galvanized flex or seal tite. I'm pretty sure seal tite is galvanized.

 

[pbeasley]

I have done work in 4 different countries, and the only place I have seen EMT is here in the states. I have seen liquid tight of some kind in the other countries, but they really don't like to use it inside. If they are using single counductor wire, then it is almost always in galvanized conduit. Most often, they run a three-core cable and use cable tray or conduit to keep it protected. They also use armored cable for panel feeds and exterior applications.
View attachment 2890 View attachment 2891
These are both in Hong Kong. The large cable going into the gutter is the armored feed for the MCB above it, the other one shows a combination of 230v and 24v cables for an exterior LED lighting setup. More pix available. PM me if anyone is interested in how that part of the world does things.

As for Japan, they have very strict and very different fire codes than anywhere I have worked, and these can have a huge impact on how the electrical ends up getting done. They also have very strong opinions about using domestically produced products whenever remotely possible.