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What is the voltage rating of the conductors in type nmc cable?
Wiki User
∙ 11y ago
In North America the voltage ratings of low voltage wire comes in three voltages. The voltages are 300, 600 and 1000 volt insulation ratings.
Charley Bins
Rosemarie Mills
In North America the voltage ratings of low voltage wire comes in three voltages. The voltages are 300, 600 and 1000 volt insulation ratings.
Wiki User
∙ 11y agoIn North America the voltage ratings of low voltage wire comes in three voltages. The voltages are 300, 600 and 1000 volt insulation ratings.
Wiki User
∙ 11y agoUp to 2000 volts.
Anonymous
Up to 2000 voltage
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Can you plug a dc appliance into a wall outlet?
With the proper cap configuration on the DC cable, yes it physically can be done. If there is a DC load connected to the end of the DC cable, the load would be destroyed by the application of AC voltage being applied to it. Why anyone would consider doing this type of procedure is anyone's guess.
What material is used for the conductor on the high voltage AC overhead cables is it steel or aluminium and Is there an insulator?
High Voltage Overhead cables: Aluminum conductors reinforced with steel (known as ACSR) are primarily used for medium and high voltage lines and may also be used for overhead services to individual customers. Aluminum conductors are used as it has the advantage of better resistivity/weight than copper, as well as being cheaper. Some copper cable is still used, especially at lower voltages and for grounding.To attach the cable to the towers you need to use some type of insulator.Insulators must support the conductors and withstand both the normal operating voltage and surges due to switching and lightning. Insulators are broadly classified as either pin-type, which support the conductor above the structure, or suspension type, where the conductor hangs below the structure. Up to about 33 kV (69 kV in North America) both types are commonly used. At higher voltages only suspension-type insulators are common for overhead conductors. Insulators are usually made of wet-process porcelain or toughened glass, with increasing use of glass-reinforced polymer insulators.
How many volts in 30amps?
All fuses have a voltage rating, which is independent of its current rating. The current rating is the maximum current the fuse will pass; any higher, and it will blow. The voltage rating is the maximum voltage that is allowed to appear across the fuse should it blow. If the voltage is any higher than the fuse manufacturer's rating, it may arc across inside the fuse, causing power to continue to be supplied to the faulty item that caused the fuse to blow in the first place. This is obviously very dangerous, and could result in severe electric shock, or fires. The voltage rating is usually stamped on one end of the fuse.
What is a BX connector?
A BX connector is a special type of box connector used for securing a BX cable to a junction box. BX is a type of armoured cable that is used for specific locations where ordinary Romex cable could become damaged. Before the connector is installed onto the BX cable there is a small PVC collar to be installed. In the trade it is called an anti short. It slides between the outer sheath of the BX and the conductors inside the sheath. It adds protection for the inner conductors from rubbing against the outer sheath if any vibration is involved in the installation. There is usually a small hole in the BX connector and the red anti short can be seen through this hole. This makes it easy for the electrical inspector to see if the anti short bushing has been installed during an inspection, and they do check.
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 plug a dc appliance into a wall outlet?
With the proper cap configuration on the DC cable, yes it physically can be done. If there is a DC load connected to the end of the DC cable, the load would be destroyed by the application of AC voltage being applied to it. Why anyone would consider doing this type of procedure is anyone's guess.
Which type of capacitor has the highest voltage rating?
Those with vacuum as the dielectric have.
Do you derate for a three phase line and load conductors in the same conduit?
Yes, there will be a de-rate applied to this type of installation. In the electrical code book the amperage rating of conductors is for allowable ampacities for not more than three copperconductors in raceway or cable. This is based on an ambient temperature of 30 degrees C. If the ambient temperature of the conductors where the raceway is installed is over 30 degrees C the conductor amperages have to be reduced. Where the number of conductors are from 4 to 6 conductors in a raceway, the conductors amperage has to be reduced by .8
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 cable schedule?
Cable schedules provided a tabulated list of all cables with relevant details such as cable number, cable type, size and rating, voltage, number of cores and length of route. Cable schedules are applicable for power cables, control cables, instrumentation cables and industrial data communication cables. In addition to the cable schedules, termination diagrams are provided for use by the electrical installation contractor.
What is the capacity of a 35mm2 cable?
Current carrying capacity is different for aluminum from that of copper cable. Under different conditions like, type of insulation, number of conductors, in conduit, underground, in air, single or multilayer, system voltage, the current carrying capacity varies a bit. Hence You must refer a standard chart from a reputed cable company.
What is the difference between type ac and type act armored cable?
The difference is the type of insulation on the conductors. Type AC used a thermoset insulation , Type ACT is a theromplactic insulation.
How can you select cable gland for a 240 sqmm cable?
It depends to Overall Diameter, type of armor, Lead Cover and voltage grade.
What is zip cord?
Zip cord is a type of plastic insulated wire having 2 or more conductors. These conductors can be easily separated by manually "unzipping" the cord along a molded indentation between conductors. Zip cord with a large number of conductors is usually called ribbon cable.
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.
What material is used for the conductor on the high voltage AC overhead cables is it steel or aluminium and Is there an insulator?
High Voltage Overhead cables: Aluminum conductors reinforced with steel (known as ACSR) are primarily used for medium and high voltage lines and may also be used for overhead services to individual customers. Aluminum conductors are used as it has the advantage of better resistivity/weight than copper, as well as being cheaper. Some copper cable is still used, especially at lower voltages and for grounding.To attach the cable to the towers you need to use some type of insulator.Insulators must support the conductors and withstand both the normal operating voltage and surges due to switching and lightning. Insulators are broadly classified as either pin-type, which support the conductor above the structure, or suspension type, where the conductor hangs below the structure. Up to about 33 kV (69 kV in North America) both types are commonly used. At higher voltages only suspension-type insulators are common for overhead conductors. Insulators are usually made of wet-process porcelain or toughened glass, with increasing use of glass-reinforced polymer insulators.
Is stacking of cables in cable tray permitted?
See NEC Article 392. It depends on the voltage, conductor size and the type of cable tray selected.
