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Anonymous Poster

LT Cable Specification

09/02/2010 5:49 AM

Dear all,

Can anyone explain to me the following conductor (cable)parameter

1.Min insulation resistamce value (in M OHMS/KM)

2.Max conductor dc resistance at 20 DEG.C (OHMS/KM)

3.Max.Armoured resistance at 20 deg.c( OHMS/Km)

4.Max.Dielectric stress at the conductor screen (mV/M)

5.Max.Ecectrostatic capacitance per meter of cable(pF)

6.Conductor short circuit current for 1 sec (kA)

Can anyone suggest me the appropriate value of the above

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Guru
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#1

Re: LT cable specification

09/02/2010 6:13 AM

The terms are self-explanatory. The values of the terms can be obtained from cable manufacturers' selection literature.

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#2
In reply to #1

Re: LT cable specification

09/02/2010 6:32 AM

Dear PWSlack,

Different manufacturers offer different values.For all properties higher value is better or lower value is better

For example short circuit current 0.162.0.173,0.156 kA/sec which value is better

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Anonymous Poster
#3
In reply to #2

Re: LT cable specification

09/02/2010 8:49 AM

?

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Guru
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#5
In reply to #2

Re: LT cable specification

09/02/2010 8:54 AM

You should know, you asked the question in the previous post.

Something's strange about these two posts, I think we have a member masquerading as a Guest

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Guru
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#6
In reply to #5

Re: LT cable specification

09/02/2010 1:30 PM

Either that or a Guest masquerading as a member, perhaps?

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Guru
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#7
In reply to #2

Re: LT cable specification

09/02/2010 1:31 PM

Go back to the earlier thread on this topic and find out!

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Guru
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#4

Re: LT Cable Specification

09/02/2010 8:50 AM

Since it is a control cable, i believe you would need to know the effect of resistance and capacitance. A good paper on this is here: moeller

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Guru
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#8

Re: LT Cable Specification

09/02/2010 10:11 PM

H = higher is better, L = lower is better.

H 1. Min insulation resistance value (in MΩ/km)

L 2. Max conductor dc resistance at 20°C (Ω/km)

L 3. Max armour resistance at 20°C (Ω/km)

H 4. Max dielectric stress at the conductor screen (mV/m)

L 5. Max electrostatic capacitance per meter of cable(pF)

H 6. Conductor short circuit current for 1 sec (kA)

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#9
In reply to #8

Re: LT Cable Specification

09/03/2010 12:49 AM

Mr.Tornado thanks for your information

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Guru
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#10
In reply to #9

Re: LT Cable Specification

09/05/2010 2:34 AM

It could be Mrs Tornado

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#11
In reply to #10

Re: LT Cable Specification

09/06/2010 1:19 AM

sorry

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Guru
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#12
In reply to #11

Re: LT Cable Specification

09/06/2010 6:33 PM

Not at all. Mrs Tornado is an artist with a background in marine biology, but is not familiar with electrical specifications. As it turns out, the Mr Tornado guess is correct. I hope I helped.

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Anonymous Poster (1); kvsridhar (1); PWSlack (3); senthilkodisundaram (3); TonyS (2); Tornado (2)

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