Questions tagged [insulator]
The insulator tag has no usage guidance.
17 questions
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How does the amount of current coming from a wall socket change depending on whether it is a conductor or an insulator? [closed]
first of all, let me start by stating that my knowledge of electronics is at a very beginner level.
As far as I know, the electric current coming from the wall socket changes depending on whether ...
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Food for thought: Which person has truth in this discussion on capacity and AC? [closed]
I have stumbled upon interesting discussion in the commentary section regarding safety of electrical engineering in home environment.
person1: AC voltage 'flows' even through insulator, fact.
person2:...
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Why is a temperature rise within an electrical component or assembly measured in kelvin?
I came across an IEC standard which uses Celcius as a temperature unit for maximum temperature limit E.g. IEC 60085 states class Y insulator maximum temperature limit to be 90°C, average ambient ...
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Do the number of corona rings affect corona formation?
Does having two corona rings instead of just one on the line end of a tension insulator string help with corona formation?
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Is the ceramic insulator on old espresso machine heating elements absolutely necessary?
I've spent several hours trying to understand if these ceramic insulators are really necessary on some heating element end pins. There are some terminal pins where they are absolutely needed, usually ...
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Is there a material that conducts heat but is also an electrical insulator?
I know that, most of the time, heat transfer and conductance go hand in hand. But is there some material that is an electric insulator while being good (or at least not that bad) at heat transfer?
I ...
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PTC Heating Element Watt and Insulation Film | Hot Melt Glue Gun
Question 1
If two glue guns of 20 watts and 40 watts are receiving direct current from the electric board (no adapter). Then what makes one gun 20 watts and the second one 40 watts. Is it related to ...
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Why transmission insulators have a particular shape?
What I have gathered is that to increase the creepage distance (the shortest distance along the surface of solid insulating material between two conductive parts) they have designed a particular shape....
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Protection of insulators on overhead transmission lines
Protection of insulators on overhead transmission lines.
Is an arcing horn the same thing as a coordination gap?
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Heating a 10W, 22-ohm ceramic resistor on a standard perfboard
I have a small project that consists of controlling the temperature of a 10 W, 22-ohm ceramic resistor. The circuit is assembled on a regular perfboard; I could just make use of both legs and keep the ...
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for calculating the number of insulator disks needed for creepage is line to line voltage or phase voltage used?
For example, I am calculating the number of disks required for a 330kV line. Assuming medium pollution (20mm/kV) and each disk having 405mm would my number of disks be 17 (based off line voltage) or ...
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Can I use an insulator as heating element?
If the resistance is what make heating elements heat up , then is it ideal for me to use something close to an insulator as a heating element?
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Can you use 'Rubber,' Specifically Liquid Electrical Tape Between The Plates of a DIY Capacitor
The above is pretty much all there is to the question. By "can you," I mean will it be properly effective / are there any tips? If not, why? It seems that this ought to work, but I can't ...
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what glue should i use when making 5, 12 V connectors (plugs)?
At the moment I'm making 5.5 x 2.1 mm DC connectors. The connectors are typical solder lug types like you'd find at the big online stores. I'd feel better about these if I could insulate the lugs -- ...
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Is Mica non-conductive?
Are mica flakes like ones found in makeup and body lotions completely non conductive and should I be worried if it gets inside the components of my computer? Or should I be more concerned about ...
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Why are there metal links between the discs of an overhead line insulators?
They form interlink capacitance and reduce the string efficiency. A lot of other non metallic strong materials can be used instead.
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Can we verify gap energy of a material by applying voltage across it?
Regarding the following statement:
“A material with fully occupied or empty energy bands is then an insulator. This is the case when the gap energy exceeds ~9eV, because for such gaps.”
So my ...
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