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What are the fire rating properties of expanded polystyrene and rock and wool insulation?
Gosh, I couldn't say...but, if you're asking because you're trying to choose which one to use I have to say DONT use polystyrene..not in the loft anyway! In the loft, the beads will attach themselves to your wiring, over time, and eat their way through them. And are a fire hazard. BUT, if it's for in your walls, I believe polybeads have a higher u-value thus insulate better. Rockwool is a very good product though, been around for decades, is inert and also used in hospitals (internal walls) to stop the spread of fire.
What else can I help you with?
What is more important for amperage rating wire size or insulation temperature rating?
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.
Can you use a 12v 60hz 210 va power cord to replace a 120v 60hz 150w cord?
No, it has to do with the insulation rating of the individual cords. 12 volts can be used on a voltage rating of 120 volts. But 120 volts can not be used on a 12 volt rated cord. As a point of interest most power cords have an insulation rating of 300 volts.
What is the maximum temperature rating of type xhhw insulation when used in a wet location?
The maximum temperature rating for XHHW insulation when used in a wet location is typically 75°C (167°F). This rating is applicable to copper conductors. For aluminum conductors, the maximum temperature rating is usually 60°C (140°F) in wet locations. Always refer to the National Electrical Code (NEC) or manufacturer specifications for precise guidance.
What is the maximum temperature rating of a wire's insulation on a conductor?
The four main conductor insulation rated temperatures that are used in the electrical trade are 60, 75, 90, and 105 degrees C.
Is insulation combustible?
Some insulation materials are combustible, such as cellulose and spray foam. It's important to check the fire safety rating of the insulation you are using and ensure it meets building code requirements to minimize fire hazards. Materials like fiberglass and mineral wool are considered non-combustible and are commonly used for fire-resistant applications.
What is the insulation rating for the garage?
The insulation rating for the garage is R-13.
Does a high rating mean lots of insulation or little insulation?
It depends what you mean by a 'high rating'!If you mean a high 'voltage rating' then, yes, you will require thicker insulation. But if you mean a high 'power rating', then, not necessarily, because the voltage can be low, while the current is high.Remember, the thickness of insulation depends on the voltage, while the type of insulation (how it withstands higher temperatures) depends on the current.
An R-value is a rating for materials used as?
insulation
What is the warmth rating of the jacket with 700-fill-power down insulation?
The warmth rating of the jacket with 700-fill-power down insulation is high, as the higher the fill power, the better the insulation and warmth provided by the jacket.
What is the dB rating of Rockwool sound insulation for effective noise reduction?
The dB rating of Rockwool sound insulation for effective noise reduction is typically around 50 to 60 decibels.
What is 4160 Volt electrical wire insulation rated for?
You can use an insulation rating 5000 volt to run 4160 volt supply.
How good is an insulation rating of R33?
good in walls, but not enough for attic./ceilings
What is the difference by v-75 PVC sheathed insulation and v-90 v-75 PVC sheathed insulation?
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.
What is the R-value of styrofoam?
There are many types of styrofoam. The white, bubbly expanded sheets have a very low R rating. The denser extruded styrofoam comes as polystyrene or polyurethane based, in blue or pink sheets. I believe they are 5 and 7 R rated, but all the sheets are marked very prominently with their respective ratings and uses.
What type of conductor should be used for wiring on fixture?
The conductors on and in the lighting fixture should have an insulation rating of 105 degrees C. The supply conductors to the junction box that the fixture is hung from or connected to should have an insulation rating of 90 degree C.
What is more important for amperage rating wire size or insulation temperature rating?
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.
What does the power rating of a transformer imply?
Knowing the power rating of a transformer will help an operator use the transformer within its design limitations with regard to heating of the windings and their insulation.
