Search results for query: *

Thanks , 7another4 how much of that heat will pass thru conduit (toward cable ) ? I am trying to figure out that can the Hot rebar can heat up the conduit and eventually damage the cable ?

continuous current at 30C 289 Amp .

Thanks ,my cable is going thru rebared concrete taking to account the heat dissipation of concrete i am trying to see if there is a minimum clearance for that or not .

Thanks Waross , but where is that 100 coming from ? Based upon a code or calc ?

Hi For a HV single conductor cable passing thru foundation with rebars around ,how much should be the clreance from rebar to cable to make sure that induced heating will not damage the PVC conduit and eventually the cable ? Thanks

Thanks Scotty ,Rotation is clock wise ?

Thanks guys , i know Phase is not Rotating and just Oscillating , i am trying to find out if there is an historic reason behind that or any technical advantageous .

Hello Everyone Is that true that Phase Rotation in UK is Negative Sequesnce ? If so why !!! Thanks Lenz

Kiribanda , i want to what standard is used for that and how to ensure that the system ( Underground ) is protected . Thanks

Thanks Gents , NACE TM0101 shows couple of tests , i dont know which one is required to be done for Galvanic Anode type .

Hi Can anybody explain how to test a galvanic anode cathodic protection system ? Thanks

Hi Everybody Can anybody explain how a Galvanic Anode Cathodic Protection system is tested ? Thanks

oops ! I made a mistake , i had to type N2 not N3 .

Hi every one A EHV cable was cut and left exposed to High moisture and water( no cap at either end of cut cable ) , i know about effects of moisture on cable specially on insulation deterioration also i know there are methods to dry out MV cable such as using N3 , To make the long story short...

Thanks for great response , no i am not , i would appreciate .

Thanks , current would effect thermal condition of cable also i was wondering how magnetic field caused by current would effect void.

generally ,lets say both .

Ladies and Gentlemen As We know Partial discharges occur when the local electrical field intensity exceeds the dielectric strength of the dielectric involved, resulting in localized ionization and breakdown , i was wondering how current will effect PD ?

Thanks it helped alot.

Thanks Flash ,I am electrical can you explain more how can i run the calc ?