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The four main conductor insulation rated temperatures that are used in the electrical trade are 60, 75, 90, and 105 degrees C.
Wire size determines how much current can be safely conducted. Insulation type and rating determines other factors, such as where the wire can be used and maximum voltage. It should be noted that the high voltage lines that are hanging from the really large electrical towers are among a class of wires that have NO insulation around the outside of the wire. They are instead, connected to the towers with large insulators that prevent electrical energy from being lost through the towers.
THHN wire is moisture resistant thermoplastic allowed for use in dry and wet locations. Maximum temperature is 60 C or 140 F. Being thermoplastic it should not be handled below 0 C as cracking of the insulation could easily occur.
A #3 copper wire with an insulation rating of 90 degree C has the capacity to receive 105 amps. This is the most common or standard insulation that most calculations are based on. It is the insulation that governs the rating of the voltage. House wiring cables are insulation rated at 300 volts. Most other wiring insulation is rated at 600 volts. Special wires have a insulation factor of 1000 volts. The higher the insulation temperature factor is the higher the rating of current through the wire becomes. #3 at 60C is 55 amps, at 75C 65 amps, at 90C 105 amps, at 110C 120 amps, at 125C 130 amps, and at 200C 145 amps.
If your light bulb voltage rating is under 300 volts then yes it can use 300 volt wire. The voltage rating of the wire is the maximum voltage that the wire can safely carry. The three common insulation groups is 300 volts, 600 volts and 1000 volts.
The four main conductor insulation rated temperatures that are used in the electrical trade are 60, 75, 90, and 105 degrees C.
I think this refers to the continuous temperature rating, which is the maximum rated winding temperature allowed for a maximum ambient air temperature of 40deg C.
Maximum power rating describes the maximum power at which a device can operate without reaching an excessive temperature. For example, in the case of a resistor, if its maximum power rating is exceeded, then it may burn out.
It depends on the surround material, temperature, type of cable, and what you mean by "maximum current rating". Typically a maximum load current rating will be specified, such as 15A; this means you can push 15A through that cable nonstop without damaging it (it won't overheat). You might have a short time rating as well, such as a 4 hour rating, where the cable can handle runing 22A for 4 hours if the surrounding temperature is kept to some value, though this may slightly degrade the insulation. There's also a fusing current rating for many cables. At this current, the cable will eventually melt (like a fuse).
90 degrees Celsius
Wire size determines how much current can be safely conducted. Insulation type and rating determines other factors, such as where the wire can be used and maximum voltage. It should be noted that the high voltage lines that are hanging from the really large electrical towers are among a class of wires that have NO insulation around the outside of the wire. They are instead, connected to the towers with large insulators that prevent electrical energy from being lost through the towers.
BMCR is the boiler maximum continous rating .It is that the maximum temperature , steam flow or the pressure that is used to generate full load or the bolier can withstand.TMCR is the turbine maximum continous rating .It is that the maximum temperature , steam flow or the pressure that the turbine requires for generating full loadNOTE:BMCR WILL BE MORE COMPARED TO TMCR
The voltage that a wire can have suppressed upon it is governed by the rating of the insulation that surrounds the wire. Common insulation voltages are 300, 600 and 1000 volts.
What limits the use of a transformer is its operating temperature, as excessively-high temperature will act to break down its insulation. The temperature reached by a transformer is a function of its rating (expressed in volt amperes), so operating a transformer below its rating is perfectly okay.
THHN wire is moisture resistant thermoplastic allowed for use in dry and wet locations. Maximum temperature is 60 C or 140 F. Being thermoplastic it should not be handled below 0 C as cracking of the insulation could easily occur.
V90 is a higher temperature rating than V75. V90 cables can conduct more current without over heating/melting its insulation. V110 is a higher rating than V90.
155 degrees F - 165 Degrees F