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Is the telltale factor for ascertaining where faults in a cable lie?
Wiki User
∙ 12y ago
Impedance.
Wiki User
∙ 12y ago
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What is current value after derating factor considered?
Once derating factor is considered the size of cable for perticular electrical load increased by the multipling factor.i,e if 2.5MM2 cable is capable to carry 14amp. of current in general then with 40% of derating fator it can carry only 8.4amp.
Using blavier test to check for cable faults?
This is use to locate the ground fault of a single cable. This test is performed with the aid of a low voltage supply with an ammeter or voltmeter. In this test the resistance between one end of the cable C1 and the earth is first measured with the other end, C2 isolated to earth and then with the C2 earthed. Let the two readings be represented by R1 and R2 rep! If r1 and r2 are the conductor resistance of the length of cable at C2 to fault and at C1 to fault rep!, and "r" is the resistance of the fault to earth
What cable size for 45Amp load?
25 sqmm al or 16 sqmm cu cable.Answer for USA, Canada and countries running a 60 Hertz supply service.A #8 copper conductor with an insulation factor of 90 degree C has a rating of 45 amps.
What is a cable gland?
A cable gland is a connector which holds the end of a cable in place.
What is a load cable?
Load cable generally means the final cable before the actual load. So on a clothes dryer the "Load Cable" would be the cable running from the outlet to the actual clothes dryer.
What is the telltale factor for ascertaining where faults in a cable lie?
Impedance.Depending on the cable type, it may also be possible to use a device called a "reflectometer", which sends a pulse down the wire and calculates the distance based on how long it takes for the signal to bounce back. This type of device works best for coaxial type cable.
What are the faults in the cable?
Cable faults are normally categorised as (a) conductor-to-earth (ground) faults, (b) conductor-to-conductor faults, and (c) conductor-to-conductor-to earth (ground) faults. In addition to that, we can categorise them by whether they are 'high-resistance' or 'low-resistance' faults.
What is TDR?
In the cable tv industry a Tdr is a peice of equipment used to find faults in a variety of sizes of coaxial cable. TDR stands for Time Domain Reflectometer
Velocity factor of a 14 awg cable?
Velocity factor depends to a large extent on the dielectric (insulation) used. You will have to specify the exact cable to answer this question.
Advantages of fiber-optic cable?
Good noise rejection, high bandwidth capacity, hard to tap without leaving telltale clues and relatively inexpensive for what it provides.
Coaxial cable is 500 meter it has a velocity factor 0.6 how long of the cable length does it take energy to travel the full length of the cable?
14
What is derating factor of battery?
batteries derating factor will change ,depends upon the temperature& cable size which arelinked with batteries bank.
What channel is fox on in Fresno?
Can someone help me find what channel is x factor I know its fox but what channel .. in fresno ?? And no cable regular cable
Tone generators and tone locators are used to determine characteristics about a cable?
Tone generators produce a signal that can be detected by a tone locator when attached to a cable. This is useful for identifying cables in a bundle, tracing their routes, and determining cable faults or breaks. The tone locator helps pinpoint the location and characteristics of the cable such as continuity, length, and any interference.
Why are high voltage poles are kept above ground?
A couple of reasons I can think of include: High voltage overhead cable is much cheaper than underground cable Easier to reconductor (upgrade current carrying capacity) Easier to find faults
Should I get satellite television or regular cable TV?
If money isn't a big factor in your decision, you should get cable. It generally more reliable than satellite.
Why cables are earthed?
The cable sheathing is earthed as a protection method in case of single-line-to-ground, double line-to-ground or three phase faults. This prevents damage to plant and personnel.
