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location Utah, USA
age 37
visits member for 4 years, 5 months
seen Nov 15 at 20:03

I am a software programmer using C#, C+, and (less often) PHP. I frequently work with SQL, HTML, CSS, Javascript, and XML.

I own a business for technical consulting, programming, general IT work, and designing custom electronics (usually for costumes and theater/movie prop use).

I enjoy computers, music composition, photography, writing, sci-fi/fantasy, birding, and occasional cooking. (Many of which are topics of SE sites!)

A note on capitalization, spelling, and grammar: I care about the quality and readability of the questions and answers on StackExchange sites. I frequently edit for these reasons. I understand that not everyone knows English as their first language. If I leave a comment for you asking you to observe some language-usage convention, it's meant as a helpful hint, not as an attack.


2d
awarded  Notable Question
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awarded  Notable Question
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awarded  Explainer
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awarded  Nice Answer
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
@Speedy I didn't say insulation does not matter, I said it doesn't change how much current a given wire can carry. The more current a wire carries, the higher the temperature will be, and thus you need to have an appropriate type of insulation. Different charts provide "safe" ampacities based on ambient temperature and insulation material. Yes, I have seen (and worked with) NEC information. What terms do you find erroneous or not standard?
Sep
16
comment Are extension cords safe for permanent use?
I would add to this list to never use an extension cord when still coiled up. The rating assumes the cord will cool in open air, but coiled-up cords cannot dissipate heat very well, which can lead to a fire.
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
(I should have added that the voltage drop was at the ~5.7A load of the lamp. It would be more with a higher wattage load.)
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
Similar/related questions of interest: What size extension cord should I use for multiple computers?, Extension cord and power strip safety, Are extension cords safe for permanent use?
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
Also for a more general guide to selecting extension cords, Home Depot has a friendly chart without all the math. :) (Though it is a bit less conservative.) General Cable also has a PDF guide.
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
The ampacities given by NEC are less conservative than the table I used. For 10 AWG copper wire with a 60°C rating, the value given is 30 A (compared to 15 A). There are many factors involved, but I would hesitate to use a 10 AWG extension cord for a 30 A load. Also, I calculated the voltage drop for a 100' length of 14 AWG extension cord (200' total) to be < 3V, which I wouldn't necessarily deem excessive.
Sep
16
comment What gauge wire/cord do I need for these outdoor lamps?
@Speedy A lot of ampacity charts show values like the one I linked. "Chassis wiring" is meant for wiring in air, while "power transmission" is for wiring in bundles (ref), as you would find in a typical extension cord. Insulation type doesn't change how much current a given wire can carry directly, but matters because a wire carrying high currents at high temperature can burn or melt insulation that isn't rated for it.
Sep
15
revised What gauge wire/cord do I need for these outdoor lamps?
Some clarifications
Sep
15
answered What gauge wire/cord do I need for these outdoor lamps?
Sep
15
revised What gauge wire/cord do I need for these outdoor lamps?
Spelling in title
Sep
15
suggested approved edit on What gauge wire/cord do I need for these outdoor lamps?
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awarded  Famous Question
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comment Why is high voltage coming out of HDMI port on my TV?
This question appears to be off-topic because it is about a home electrical problem that should be addressed by an electrician on site.
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awarded  Yearling
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awarded  Curious
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comment Live wire touching ground, sends power back through TV cable
Unfortunately this question isn't really on-topic, as it's not about electronics design. I think you just need to find a reputable, qualified electrician to come and sort out the issues. There's no way to provide a reasonable answer in the context of this site, as nobody here has access to your household wiring to perform some basic measurements and inspection.