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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.
What else can I help you with?
How do you calculate the size of cable for 1000kw generator?
To calculate the size of cable for a 1000kW generator, you need to consider the generator's voltage and the distance the cable will run. You will need to calculate the current the generator will draw at full load using the formula: Current (A) = Power (W) / (Voltage (V) x Power Factor). Once you have the current value, you can use it to determine the appropriate cable size based on the current carrying capacity of different cable types, factoring in voltage drop considerations for the distance the cable will run.
How do you install an electrical circuits wiring using armored cable?
Same installation as non armored cable.
What type cable has the highest resistance to noise and carry a signal the longest distance?
The type of cable that enables the longest transmission with the lowest loss is called Goubau line, or G-line, for short. This line has far less loss than either coaxial cable or parallel line (twinlead). By using conical shaped "launchers", G-line creates a type of waveguide.
What decides on the size of welding cable to use?
In order to determine proper gauge of welding cable you must first determine how long the distance you will need in cable, the entire length for both electrode side as well as work clamp side, and you also need to know the amperage you will be using. Once you determine this there are various references online and offline, most commonly in the owners manual to most welding machines, that will give you the proper size based on the amperage and total length. there are a few different factors in determining the size of welding cable you use. Thickness of base metal, distance from machine to worksite, and amperage. I am a welder in the navy and sometimes we run our leads over far distances therefore we need a bigger welding lead to handle the increase in amperage to maintain the proper work temperature. There may be more reasons for using a bigger cable but I am not sure.
How do I calculate the exstension in a steel cable that is 8 metres long and has a 500kg weight on it. The Young's modulus of the steel is 210 GPa and the diameter is 7.2mm?
In order to calculate the extension of the cable we must first calculate the strain. Strain is related to Young's modulus using the following relation:E = σA / εAWhere:E = Young's ModulusσA = Axial StressεA = Axial StrainTherefore to calculate the strain, we must first calculate the axial stress in the cable:σA = Force / AreaThe cross sectional area (CSA) of the cable is equal to:CSA = (pi(d2))/4 = pi x r2CSA = pi(0.0036)2CSA = 4.0715x10-5 m2Axial Stress = (500 x 9.81) / 4.0715x10-5σA = 120471449.98 PaAxial Stress = 120.47144998 MPaStrain of cable (εA) = Axial Stress / Young's ModulusεA = 120.471x106 / 210x109εA = 5.736735713x10-4To calculate the extension of the cable:εA = Extension / Original LengthTherefore:Extension = εA x Original Length= 0.0045893885704 m≈ 4.6 mm of extension.
How do you calculate distance using the distance equation?
i dont know that's why I'm asking
How do you calculate distance using rope?
By checking how deep the rope is in the water.
How do you calculate speed using distance and time?
Distance divided by speed will give you the time it took to travel the distance.
How can one calculate the distance traveled by an object using its velocity and the time it has been in motion?
To calculate the distance traveled by an object, multiply its velocity by the time it has been in motion. This formula is distance velocity x time.
When using UTP cable in a Token Ring network a computer can only be 45 meters from the MSAU. What is the distance if you use STP cable?
In a Token Ring network, when using Shielded Twisted Pair (STP) cable, the maximum distance a computer can be from the Multi-Station Access Unit (MSAU) is 100 meters. This is an improvement over Unshielded Twisted Pair (UTP) cable, which is limited to 45 meters. The increased distance capability of STP is due to its shielding, which reduces electromagnetic interference.
How do you make connection over LAN cable that have distance over 200 meters?
The maximum distance a utp cable can handle is 100 m. If you need to bridge over 200 meter and you can only utp cable, you will need to put in enough hubs or switches so that the length of utp cable is never more than 100 m. You can forego of the utp cable and make use of COAX cable. A good quality cable will transmit signals over around 300 m. distance. You can forego of the utp cable and make use of fiber optic cable. Then you can transmit signals over a 40 km distance. Wireless Microwave and WiMax would be an option to cover the distance using radio waves.
How can one calculate the distance traveled by an object using the acceleration and time values?
To calculate the distance traveled by an object, you can use the formula: distance 0.5 acceleration time2. This formula takes into account the acceleration of the object and the time it has been moving to determine the distance traveled.
How do you calculate the distance between the center of cube and its vertices in 3 dimension?
By using Pythagoras' theorem.
How do you calculate ground distance using line scale (three steps)?
To calculate ground distance using a line scale, first, place the line scale on the map aligning it with the two points you want to measure. Next, read the corresponding distance on the scale that matches the length of the line between the two points. Finally, convert this measured scale distance into actual ground distance using the map's scale ratio, if necessary.
What formula do you use in science to find the distance?
In science, you can calculate distance using the formula: distance = speed × time. This formula relates the distance traveled by an object to its speed and the time it takes to travel that distance.
How can one determine velocity by using acceleration and distance?
To determine velocity using acceleration and distance, you can use the equation: velocity square root of (2 acceleration distance). This formula takes into account the acceleration of the object and the distance it has traveled to calculate its velocity.
How can one determine velocity using acceleration and distance?
To determine velocity using acceleration and distance, you can use the equation: velocity square root of (2 acceleration distance). This formula takes into account the acceleration of the object and the distance it has traveled to calculate its velocity.
