Relay contact ratings.

a licensed electrician. Unlicensed work is illegal and extremely dangerous.

electrical work.

is your home, rental property, commercial premises, caravan or boat.

Most of them are OK, but I have seen some incredibly sloppy and dangerous stuff done by licensed electricians.

I actually have a copy of the San Francisco Building Code, and I've read it. Few electricians have ever seen a copy.

John

If every law on the books were enforced, everybody would be in prison, including the prison guards.

John

In SOME communities perhaps, and, depending on what work is being done. For example, upgrading your service from 100 amps to 200 amps requires a permit here, AND participation of the power utility. Try getting a permit without a licensed electrician...

Another sometimes ugly factor: some of the work requires a permit from whatever the governing body is. In my location, the permit is issued by the town; I've heard that in other locations it is the county. And for all I know, there may be places where no permit is needed. In any event, the ugliness can occur when you want to sell the house, but the work was not done under a permit. From what I've heard, that can be a *real* basket of snakes.

I can tell you this: Anyone who thinks that the rules for electrical wiring are identical in every locality in the USA is sadly mistaken.

Ed

Purely a jurisdiction issue. You live in one of our socialist paradises, obviously. I even got a permit in the People's Republic of NY.

Can be but it's rare.

Your point?

:

s,

I got a gas plumbing permit. While i was at the city hall, i asked if they have any plans or permits on the house. They said no, they don't keep those records. So, what the point of getting permits, if nobody can even check them.

In Vermont they kept permits but there is about zero enforcement, or paper trail, evidently. When I sold my house I needed the CO, which there was no record of ever completed being completed. They "assumed" I was legal because the house had been standing for 20 years. Unfortunately, the permit was only for a two bedroom house and mine clearly had three. I had to fork over another $4000 for the third bedroom. Pissed me off, it did. Vermont sucks.

It depends on which community in the People's Republic of NY. For example, some years back Mahopac NY would give you a permit and allow you to do your own work in your own house, if you passed a test that they gave you to be "licensed" for that specific work. That's a number of years back - I don't know what they do now. I assume other communities are more lenient (I don't know) and still others are more restrictive (I do know, mine is, or at least was a few years ago.)

The point is that some people sling a lot of words around about what "the code" requires when they have no idea what they are talking about.

Ed

"Purely a jurisdiction issue."

My, that's big of them.

Yes, some made you jump through hoops. Some disallowed homeowners from breathing in their own homes. The still rational ones allowed homeowners to do their own work unmolested (still have to pass the same inspection for permitted work). Of course that was ~25 years ago and NY has gone a lot further down the left swirling bowl since.

They're generally talking about their specific instance. Much of "the code" doesn't change that much as it relates to home wiring, though. It's not rocket surgery.

e:

still

Got some rare pinned themisters. Newer one are usualy smd. Cleared out their inventory; oh well, only 20; wish they had more.

This 10K themister has good response at room temperature. I tie it to

+5V via a 10K resister and took some readings between 60F and 70F (normal operating range of furnance). Outside ranges are probably not accurated, but don't care for now. Here is my calibration table.

// maximum value is 1023 int tval[30] =3D {950, 940, 930, 920, 910, 900, 890, 880, 870, 860, //

50s 850, 840, 828, 812, 805, 790, 775, 760, 750, 740, // 60s 730, 720, 710, 700, 690, 680, 670, 660, 650, 640 // 70s };

Each room controller (PIC32MX) needs to measure and report it's temperature and forward commands to hit the fan. Plan A is using USB WiFi. Got it enumerated and initialized, but don't know what to do next, i.e. channels, WEP and setups. So, plan B is using USB Bluetooth. Hopefully, i can setup and pair the USB/BT on another PC and move it to the PIC. Still waiting for my after chrismas gift to arrive ...

For the fridge, pobably need a different themisters and/or circuit. This one does not seem to work too well at low temperature