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What is the Relationship between length of cable and capacitance?
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How do you calculate cable distance using farads?
All underground cables have relatively high values of capacitance, due to the close proximity of their cores and earthed (grounded) metallic sheath. Manufacturers provide data for their cables, which express their capacitance in terms of capacitance per unit length, e.g. microfarads per metre.Certain categories of underground cable-fault can be located by measuring the capacitance (using an appropriate bridge circuit) of the healthy section of the cable then, having determined the capacitance per unit length for that type of cable, measuring-off the distance along the cable route to the fault position.
Calculate capacitance of electric cable?
Basic Telephony cable is manufactured with a built in capacitance of 0.084uF (microfarads) per mile on 22-24AWG (for example) wire. Basic cable length can be estimated with a voltmeter. Messuring the amount of voltage discharged when placing the wire to ground, discharging the stored voltage in the wire.
What in the cable limits signal degradation?
A: As cable lenght increases the impedance changes with frequency especially at half wave lenght where at some frequency the impedance can be zero. The impedance is a function of capacitance inductance and resistance in the cable
What is the relationship between the length of a co-axial cable and the delay?
Well as length is increased the delay will increase because the signal takes longer to travel to the destination, but i don't know exactly how much delay would be added. Keeping in mind that the RF signal travels at 186,000 miles a second, you will never see or hear a delay.
What is the string and cable length on a McPherson hornet vx?
String 82 Cable 39 3/8
Can you use ac supply for cable meggering?
No. The cable has capacitance, and an AC source would not be able to distinguish between capacitance and leakage.
Why ac megger not use in cable meggering?
Because the cable has capacitance, and an AC source would not be able to distinguish between capacitance and leakage.
How do you calculate cable distance using farads?
All underground cables have relatively high values of capacitance, due to the close proximity of their cores and earthed (grounded) metallic sheath. Manufacturers provide data for their cables, which express their capacitance in terms of capacitance per unit length, e.g. microfarads per metre.Certain categories of underground cable-fault can be located by measuring the capacitance (using an appropriate bridge circuit) of the healthy section of the cable then, having determined the capacitance per unit length for that type of cable, measuring-off the distance along the cable route to the fault position.
Calculate capacitance of electric cable?
Basic Telephony cable is manufactured with a built in capacitance of 0.084uF (microfarads) per mile on 22-24AWG (for example) wire. Basic cable length can be estimated with a voltmeter. Messuring the amount of voltage discharged when placing the wire to ground, discharging the stored voltage in the wire.
What is the relationship between insulation resistance and length of conductor in transformers?
when length is increased insulation resistance of cable is decresed i.e.,R is inversely proportional to L where R is resistance L is length
Is lower impedance better for a microphone?
No, it's not better for a microphone, but it's better for a long cable connection without treble loss. Scroll down to related links and look at "Cable Length, Cable Capacitance, and Treble Loss".
Does the stray capacitance or the resistance of the monitor cable have the greater effect on the monitor's color?
no
Why the 3 phase of high voltage conductor or cable transposed?
3 phase cable is transposed to minimize the effect of leakage/capacitance current.
What is the max length of cat 5 cable between a hub and switch?
100 meters
How long can twisted cable be?
Clarification needed. Do you mean: 1. The maximum data rate that can be sent along the cable, or 2. The capacitance (probably picofarads per metre/ foot/ kilometre) of the cable?
I want to make a cable out of 6 inch wide 1 mil copper foil. I want to fold the foil 6x to a 1 inch width along the length of the foil. What does this do to capacitance. Does a foil coating affect cap?
If you read many forums on loudspeaker cable design, you will find many proponents that have actually built cables from foil with great success. The difference this question addresses is the effect of folding the foil along the length of the cable. The cables would be separated (+ and -) so as not to interact from a capacitance standpoint. A 6 inch wide foil has to be given only 5 folds thus: VVV to make a final "strip" that is approximately 1 inch wide. If the + and - foils were folded closely together lengthwise to form a "sandwich", the insulating coating on each length would stop the + strip from shorting across to the - strip along their lengths but there would be a capacitance effect between them. This is called "capacitive reactance" and it increases with audio frequency, having the effect of muffling the highest frequencies. The thickness of the insulating coating would definitely affect the capacitance: the thinner the coating, the higher the capacitance and therefore the higher the capacitive reactance would be at any given frequency. If the + and - cable "strips" were purposely kept separate - i.e. were not folded closely together lengthwise to form a "sandwich" - then there would still be some capacitance effect between the two separate "strips" but it would probably be negligible at audio frequencies. The insulation coating of the foils would then only serve to prevent each 1 inch wide "strip" from behaving more like a 1 inch wide copper "bar" having a thickness equal to the thickness of the copper foil multiplied by 6.
What is the maximum length for BNC cable?
The BNC (Bayonet Neill Concelman) connectoris a very common type of RF connector used for terminating coaxial cable.There is no predetemined maximum length for the coax cable. The maximum length of cable is going to be governed by determining the input signal level, the minimum output signal level, and the signal loss based on the length of the cable between the input and minimum output.
