desirable properties of Cable

1 Answer

Answer :

Following are the main properties of cables: 


1. Stranded Conductor: The conductor used for cable should be stranded specially for large size of cable because, 

  • To increase the flexibility of cable 
  • For easy handling of cable 
  • For easy storage cable. 

2. Annealed Conductor: Annealed conductor should be used to become conductor soft. 

3. Tinned conductor:- Tinned conductor should be used so that conductor will not stick with insulation.

4. Cross Section Of Conductor: Cross Section Of Conductor should be proportional to magnitude of current. 

5. Insulation Thickness: The insulation thickness provided to cable should be proportional to magnitude of voltage. To give high degree of safety and reliability. Thickness of insulation α Magnitude of voltage 

6. Mechanical Protection: Especially underground cable should be provided with mechanical protection (armouring). So that it will withstand against rough handling and mechanical injury. 

7. Life: The material used for cable should have long life. 

Related questions

Description : State the procedure for laying / installation of underground cable.  

Last Answer : 1) Direct laying Cable: or Trench laying method: Procedure: * For laying of a cable trench about 1.5m deep and 0.5m wide is made along the cable route. * A ... over. * Cables laid in this manner are usually plain lead covered because troughing affords good mechanical protection. 

Description : State the four methods of laying of cable. State precautions while laying of underground cable in the situation : (i) Minimum clearance between cable and water pipe line when running in parallel. (ii) ... is to be laid in the same trench, what should be minimum spacing between two cables ?  

Last Answer : (i) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr. (ii) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr ... should be minimum spacing between two cables :- Then minimum 30 cm spacing is provided between 2 cables 

Description : Why is "RJ-45" cable called "RJ-45" ?

Last Answer : rj = registered jack 45 = is number of standard interface and contains 8 separate wires

Description : Why cable outer sheath is black in color?

Last Answer : There are cables with different colors, for example, red, orange, grey. PVC or HDPE, the plastics that the jacket of the cable is made of, have to be UV-stabilized. Carbon black is a common and cheapest additive for it purpose

Description : A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is (A) 28.2 mm (B) 26.4 mm (C) 24.4 mm (D) 22.0 mm

Last Answer : A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is 22.0 mm

Description : I have 10 minutes to decide whether to cancel my cable help me choose?

Last Answer : Do it. Piracy is free. Just avoid the torrents.

Description : How do I set up a Universal Remote Control to my Suddenlink cable box?

Last Answer : answer:

Description : Does anyone have the USB GO! Link Cable?

Last Answer : You can usually get drivers and related software from the manufactures web page.

Description : Where can I get an HSSDC to USB cable or similar.

Last Answer : I would call tyco electronics or amphenol customer service and see if they have any standard cable assemblies. They might have some in their sample stock. It's possible that this isn't a standard and the wiring ... match up though. I work for TE and I've never heard of a HSSDC to USB cable assembly.

Description : Why is the death penalty a non-view event when it could be assessible to all by cable?

Last Answer : I agree that it shouldn't be shied away from- especially if one supports it. However, showing it on television would violate a few laws. So to get around those it would have to be either a pay ... I just don't see how it will happen with the way our communication and broadcasting system is set up.

Description : Where can I find a CNT or LMR 400 cable?

Last Answer : Check your local Radio Shack store or Order Online -> http://www.google.com/products?hl=en&source=hp&q=CNT%20or%20LMR%20400%20cable&rlz=1R2ADSA_enUS360&oq=&um=1&ie=UTF-8&sa=N&tab=wf

Description : How can I use a multimeter to find out how many OHMS are in a cable?

Last Answer : Measure the potential difference (V) across the cable and the current (I) running through it. Then use Ohm’s law: V = IR. R is the resistance, given in ohms, where 1 ohm is 1 volt divided by 1 amp.

Description : I can't find this cable anywhere!

Last Answer : Ahem

Description : Why do we now have commericals on cable television?

Last Answer : Not the defend the cable companies, but their operating and infrastructure costs are constantly going up. The money’s got to come from somewhere.

Description : Can I cut a cable wire?

Last Answer : probably best just to feed it into the hole, if possible. you may want it later. but, if you're sure you won't, then,yes, you can.

Description : How rating of main switch and cable is selected for Industrial Installation.

Last Answer : 1. Rating of Main Switch or Fuse Rating is decided in industrial installation: Rating of main switch or fuse is based up the starting current of motor. For calculating starting current is considered 2 ... take 1.5 times the rated current or full load current. & thus cable rating is decided.

Description : State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Last Answer : i) Function of Cable box: To hold and inspect incoming and outgoing terminals  ii) Function of Guard wire : A grounded conductor placed beneath an overhead transmission line in order to ground ... in service connection: To give mechanical Support to pole, line and prevent leakage current if any

Description : If the insulation resistance of a cable of length 10 km is 1 mega ohm, its insulation resistance for 50 km length will be

Last Answer : If the insulation resistance of a cable of length 10 km is 1 mega ohm, its insulation resistance for 50 km length will be 0.2 mega ohm

Description : The velocity of travelling wave through a cable of relative permittivity 36 is

Last Answer : The velocity of travelling wave through a cable of relative permittivity 36 is 0.5 x 108 m/sec

Description : A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is (A) 1.125 cm (B) 1.5 cm (C ) 2 cm (D) 8 cm

Last Answer : A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is 2 cm 

Description : what is the use of bedding on underground cable?

Last Answer : Bedding is the layer above the lead sheath it protects the lead sheath from corrosion that means it gives chemical protection to metallic sheath(lead sheath)

Description : Would you educate me on streaming devices for our TV?

Last Answer : answer:Easiest to use streaming device is probably a google chrome cast. Plugs into the HDMI slot in the back of the TV, controllable via Google Chrome. Runs $35. Do you subscribe to any streaming services, ... and good wi-fi? You need an extremely tall antenna to get a signal from 60 miles away.

Description : Why would this be happening to my ask-public account?

Last Answer : answer:You are in Comcast's walled garden' - basically their records in Comcastville do not have the MAC address (those 12 digits on the bottom of your modem) and so they won't let you outside ... week. It's nothing serious - just bureaucratic. Either reactivate on line or phone them. No big deal.

Description : Digital strength low...what does that mean?

Last Answer : answer:Probably a break in the cable to your house. Coincidence that it coincided with getting a new TV. Call your cable company. But personally, I’d save myself $20 a month and get an amplified antenna from Radio Shack.

Description : The Real L Word; before I give it a go (and watch it), is it any good, or garbage?

Last Answer : It’s no better than any other reality tv show meaning it’s crap that you can’t stop watching.

Description : Can an imac do hdmi in to allow for tv?

Last Answer : I use an eyeTV tuner to hook my cable up to my iMac. Works like a charm. I have an old iMac and I don’t think it has an hdmi connection, but the eyeTV tuner is more than sufficient.

Description : Is there any reason I shouldn't do DISH tv?

Last Answer : Aside from it stealing your soul? No, no reason not to try it. We’ve had DISH for 5 years. We never had any huge issues with it.

Description : Keeping cablebox on constantly for Tivo?

Last Answer : answer:To answer your question, Yes the cable box needs to be on in order to record on your TV, since the cable box needs to decode the channels for you to view and record them. I would recommend ... Cable Card (dual tuner support, one cable card), and it works quite well on Comcast. Good Luck! R

Description : Does anyone subscribe to AT&T U-Verse?

Last Answer : i just signed up for it yesterday and getting it installed on Sunday tv with internet outside of Chicago. Can't say anything about the service if it is good or not, but getting anything installed on the ... is no good, I can cancel with no penalty. Runs on fiber which should be better than dsl.

Description : What Are The Desirable Properties Of A Coolant?

Last Answer :  It should not absorb neutron  Have high chemical and radiation stability  Non-corrosive  Have high boiling point  Non-toxic

Description : What Are The Desirable Properties Of A Good Moderator?

Last Answer :  It must be as light as possible It must slow down the neutron as quick as possible.  It must have resistance to corrosion.  It must have good machinability.  It must have good conductivity and high melting point.

Description : State the functions of a fuse. Mention the desirable properties of fuse materials.

Last Answer : Ans: Fuse is a protective device, which consists of a thin wire or strip. This wire or strip is placed with the circuit it has to protect, so that the circuit-current flows through it. When ... silver and silver alloys are used of lower ratings. Copper alloys are used in fuses of higher ratings.

Description : Which of the following properties is not necessarily desirable in the material for transformer core? A. Mechanical strength B. Low hysteresis loss C. High thermal conductivity D. High permeability

Last Answer : C) high thermal conductivity

Description : List desirable properties of hydraulic oil.

Last Answer : Following are the main Properties of hydraulic oil required to fulfill its functions: 1) Stable viscosity characteristics 2) Good incompressibility (High bulk modulus) 3) Good lubricity ... rust and corrosion preventive qualities 9) Minimum toxicity 10) Ready availability and inexpensive

Description : List properties desirable for spring material

Last Answer : 1)High Resilience 2) High ductile 3)High static strength 4) High fatigue strength 5) Non corrosive

Description : Desirable properties of refrigerant.

Last Answer : a) Boiling point at atmospheric pressure should be low. b) Freezing point at atmospheric pressure should be low. c) Latent heat of vaporization of refrigerant must be high. d) Critical temperature ... k) It should have high thermal conductivity. l) It should have chemical stability.

Description : State desirable properties of heating elements used in indirect resistance heating. 

Last Answer : Following properties of good heating material in indirect resistance heating:- 1. High resistivity: It should have high resistivity. So that it becomes compact in size and produces more heat with small ... , it should have low temperature co-efficient of resistance. 10.It should not be brittle.

Description : The desirable properties of transformer core material are  (1) low permeability and low hysteresis loss. (2) high permeability and high hysteresis loss. (3) high permeability and low hysteresis loss. (4) low permeability and hysteresis loss.

Last Answer : The desirable properties of transformer core material are high permeability and low hysteresis loss.

Description : List seven properties cable jackets should have.

Last Answer : Low smoke generation, low toxicity, low halogen content, flame retardance, fluid resistance, high abrasion resistance, and stable performance over temperature.

Description : Regarding sanctuary cities, which of the two alternatives do you think is the most desirable and why?

Last Answer : I don't see why this has to be a binary thing. That is, state and local law enforcement and civil bureaucracies don't have to enforce Federal law on immigration, and they don't even ... 's here illegally, then he can be deported forthwith. Deported by the responsible Federal authorities, that is.

Description : Why are foods that come from a certain area considered more desirable to eat in that area, than the foods from that same area that are shipped in to another state?

Last Answer : answer:There's a generally accepted standard that fresh (unfrozen) tastes better than frozen and then thawed, regardless of the item. My palate is not sensitive enough to tell the difference in many ... the minimized impact on the environment of materials to ship, fuel to transport, and so on.

Description : Is "tooting your own horn" a desirable trait?

Last Answer : My husband toots his own horn constantly,but it’s under the guise of how awesome other people think he is. It’s a little annoying sometimes. But then again, it’s probably a facet that makes him a great sales man.

Description : If you think it is ok, even desirable, to show up early when meeting someone at their house, why do you think that is a good thing?

Last Answer : For me, it’s simple. Be where you’re supposed to be at the time agreed upon. Earlier is better than late, but on time is best.

Description : Propagating a stevia plant -- possible? Desirable?

Last Answer : answer:@SmashTheState New plants from old are clones of the original plant. Therefore I would anticipate the new plants will have the full sweetness as your original plant. I don't know if you know this ... have ONCE the root system(s) is/are well-established. Let us know how you go. Andreas.

Description : Would the complete efficiency of financial markets be desirable?

Last Answer : Sure, so would frictionless surfaces and transmission lines with zero resistance.

Description : Why is Angelina Jolie considered such a beauty and so desirable?

Last Answer : She is beautiful in my opinion.I saw her on the cover of Vogue once and she was just gorgeous.

Description : What do men desire in a woman? What is it do men find desirable?

Last Answer : This answer is going to get you the same answers as your last question: It varies. Men do not come off of an assembly line with everything pre-programmed into our heads. All of our preferences ... a woman who's into geeky TV shows and movies, power metal and industrial music, and computer games.

Description : When does a less than desirable sleep schedule become insomnia?

Last Answer : Can you get a light sedative from the doctor who treats you seizures? It is important re seizures.

Description : Explain two reasons as to why power sharing is desirable. -Democratic 10th

Last Answer : There are many reason as to why power sharing is important in a democracy. The following are the two main sets in which the reasons can be broadly divided. Prudential reason:Power sharing helps to reduce ... to live its effects, so that the people would be consulted on how they are to be governed.

Description : I am slim and tall, Many find me desirable and appealing. They touch me and I give a false good feeling. Once I shine in splendor, But only once and then no more. For many I am 'to die for'. What am I? -Riddles

Last Answer : A Cigarette