Search: Posts Made By: winnie
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10-07-09, 03:47 PM
Replies: 7
Views: 3,339
Posted By winnie

Here is one of the electronic ones that I am...

Here is one of the electronic ones that I am using for a big lamp in my dining room:

It has very basic sunrise/sunset calculations, only a couple of lattitude zones; but I find it does a pretty...
10-07-09, 11:18 AM
Replies: 7
Views: 3,339
Posted By winnie

Quite a few of the electronic timers that are...

Quite a few of the electronic timers that are sized to replace single switches will calculate sunrise and sunset times, and can be programmed to turn circuits on and off both relative to...
10-05-09, 10:00 AM
Replies: 12
Views: 932
Posted By winnie

Jimbo, I echo the above comments about...

Jimbo,

I echo the above comments about electricity usage. An essential first step is to figure out in detail how much electricity you will be using. A laptop plus a couple of CFLs is a rather...
06-21-09, 04:32 AM
Replies: 13
Views: 1,411
Posted By winnie

Your general approach is reasonable, but your...

Your general approach is reasonable, but your power supply selection might be a problem.

Try measuring the 12V output of the power supply while you connect the motor. This should be easy since...
10-23-08, 07:59 AM
Replies: 5
Views: 913
Posted By winnie

Understand that you are asking to do something...

Understand that you are asking to do something non-standard, and thus none of the answers that you get here will be particularly assured. The electrical code has many detailed requirements and...
10-08-08, 12:46 PM
Replies: 4
Views: 865
Posted By winnie

The simplest thing to describe and to understand...

The simplest thing to describe and to understand is to simply run the 10-3 back to your breaker box.

If you want to try to run from that junction box, you will need to determine just what is in...
10-02-08, 10:08 AM
Replies: 3
Views: 2,607
Posted By winnie

Just a slight clarification: You are only...

Just a slight clarification: You are only allowed to round up on the breaker size if the calculated load on the conductor is less than the conductor ampacity. Your conductors are rated for 85A. ...
09-26-08, 09:38 AM
Replies: 12
Views: 28,441
Posted By winnie

For your application, a higher wattage...

For your application, a higher wattage transformer couldn't hurt.

The site that you linked showed 240V to 120V transformers, which are the wrong voltage to do the job. These also may be...
09-26-08, 07:08 AM
Replies: 12
Views: 28,441
Posted By winnie

This is the sort of transformer that you need:...

This is the sort of transformer that you need: http://www.grainger.com/Grainger/items/2CL93 Of course, Grainger is probably not the place to buy it; but the info should help you in your search. ...
09-25-08, 08:19 PM
Replies: 12
Views: 28,441
Posted By winnie

The 2YU68 appears to be made for 208V only; if...

The 2YU68 appears to be made for 208V only; if you look at this catalog page you will see a different heater 2YU66 that is made for 240V, with an option to use it at 208V.
...
09-10-08, 09:59 AM
Replies: 5
Views: 2,816
Posted By winnie

Remember that the conduit body is being used as a...

Remember that the conduit body is being used as a 'pull point' for conductors. If you have all of the necessary clearance issues taken care of so that the 'side facing' cover is properly accessible,...
09-07-08, 07:28 PM
Replies: 23
Views: 1,484
Posted By winnie

The 'old' dimmers that actually dropped the...

The 'old' dimmers that actually dropped the voltage were either variable resistors, or they were variacs. You are already going down that path.

As I noted above, my hunch at the present time is...
09-07-08, 12:17 PM
Replies: 23
Views: 1,484
Posted By winnie

Hmm. Given what you are describing, you might...

Hmm. Given what you are describing, you might consider the following:

1) Figure out if the circuit has a reasonable topology, but component selection is not ideal. My _assumption_ based on what...
09-06-08, 08:47 PM
Replies: 23
Views: 1,484
Posted By winnie

If you don't know how to apply a resistor, then I...

If you don't know how to apply a resistor, then I respectfully suggest that you spend some more time studying before you spend dollars and time implementing hardware. It sounds like you are learning...
09-02-08, 07:16 AM
Replies: 9
Views: 15,555
Posted By winnie

I have not personally dealt with this issue,...

I have not personally dealt with this issue, however from reading:

1) something as simple as flooding the conduit with water may help

2) there are wire lubricants specifically made for...
08-20-08, 03:37 PM
Replies: 14
Views: 1,261
Posted By winnie

I second the recommendation of contacting the...

I second the recommendation of contacting the manufacturer.

On _some_ appliances, it is a critical safety issue to know which supply terminal is the 'neutral'. For example, in a lamp, the screw...
08-15-08, 02:51 PM
Replies: 4
Views: 1,405
Posted By winnie

I would strongly suggest that you read article...

I would strongly suggest that you read article 680 of the NEC, which describes installations of swimming pools and hot tubs. There are any number of requirements that are different from standard...
08-13-08, 12:44 PM
Replies: 13
Views: 4,386
Posted By winnie

Given that you have the materials already, I...

Given that you have the materials already, I would take the gamble and go with the DIN connectors. Just be sure to print out the specification sheets to show the inspector if asked.

The worst...
08-12-08, 09:46 PM
Replies: 13
Views: 4,386
Posted By winnie

Marc, RJ is planning on using 'DIN rail'...

Marc,

RJ is planning on using 'DIN rail' barrier terminals, such as are common in Europe and common in control panels in the US. I see no reason that they would not be useable in NEC compliant...
08-11-08, 08:16 PM
Replies: 3
Views: 821
Posted By winnie

AFCIs have a very difficult job: differentiating...

AFCIs have a very difficult job: differentiating between arcing faults and normal arcing that occurs in equipment such as switches and motors. It is apparently fairly easy to detect arcing current...
08-11-08, 02:29 PM
Replies: 21
Views: 19,970
Posted By winnie

You are going to have to look more closely at...

You are going to have to look more closely at what you bought and what you have in the wall.

An appliance cord will _never_ have 10-30R on the end of it, but that is just me being pedantic; 10-30R...
08-11-08, 02:26 PM
Replies: 2
Views: 743
Posted By winnie

You will need to know quite a bit more before you...

You will need to know quite a bit more before you can determine if you can approach this project and for us to provide you with any sort of reasonable advice.

A receptacle circuit is described by...
08-11-08, 11:29 AM
Replies: 13
Views: 4,386
Posted By winnie

Remember that those 'DIN rail contacts' that you...

Remember that those 'DIN rail contacts' that you are considering using must be mounted on a rail; so in addition to the contacts you will also need to mount a rail at the back of the box.

I've...
08-05-08, 02:57 PM
Replies: 21
Views: 19,970
Posted By winnie

1) IMHO it would be unsafe to make a 14-30P (male...

1) IMHO it would be unsafe to make a 14-30P (male plug) to 10-30R (female receptacle) extension cord. My reasoning is that you are forced to mix up the neutral and the ground. 10-30R dryer...
08-05-08, 09:39 AM
Replies: 11
Views: 1,141
Posted By winnie

Exactly. You use THWN in RMC, _or_ you use THWN...

Exactly. You use THWN in RMC, _or_ you use THWN in IMC, _or_ you use THWN in liquid tight flexible conduit (but only if flexibility is required), _or_ you can use type MI cable. The normal approach...
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