IMO Shuretest VD is weak

[Jeffrey R. Pope]

Originally Posted by dandersen

Is the % voltage drop the issue, or is voltage less than 108 vac with a high % drop?

The drop is the issue. As I stated, excessive VD is an indication of high resistance in the circuit. Resistance translates into heat (that's the reason for the short load duration).

If nothing else, it's an "efficiency" issue.

[Richard L. Bennett]

Doug

Do you thing VD is a problem?

If it is I can see Shuretest stock going up

I might even buy one

Right now it is my heat gun an the Fluke if as you say you feel you need to check for a VD.

I am also thinking of an additional test for true load testing since the EC in my area do not do it. I have done this type of testing in the Telecom and USN so it is not a problem but would have to buy some equipment and contact my insurance co to see if I could afford the general liability inc

Happy Easter

rlb

[Richard L. Bennett]

Jeff

Your thoughts


When a device (HVAC etc.) is feed low voltage it will draw more current like a drunken sailor. This will build up more heat in the device and will shorten its live.

I do agree that the two are tied together. And IMO the voltage is the issue not the %. I will give you points for your side -- the NEC keeps talking about % so you must be right.

Is there anyone out there that thinks that the NEC cares about voltage under load??

I know that in my past it was voltage and current the % was not the problem

Sometimes I know I am dating my knowledge but the laws of Physics and basic electricity should not change

Do I sound like I know what I am saying? If I do DO NOT CALL ME son of JOE

Trust me I will change my name an log into NACHI as someone else

rlb

[Richard L. Bennett]

Smoke test

Here is what I have in my brain as a problem

We test the ckt and it looks OK

Load it down and the weak point starts to heat up. Resistance and VD starts to go up real fast. The device (Stove - HVAC) starts to draw even more current causing the problem to get even worse.

Can not the industry come up with a testing MOP and equipment that will show the problems (small $$) or am I looking for a problem that is only in my house.

I think suretest is leading us down a path that if something goes wrong the HI gets it in the court case when the house burns down and the kid is dead but suretest does not

We and suretest says it is OK

Yes, I have too much time to kill (TV is bad and all projects for today are done)

Just looking for thoughts

Maybe Suretest could check in

rlb