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  1. #1

    Post emy

    assalam alaicom warahmat allah wabaracato
    how r u all?
    i want your help, please if any one have paper or topic in high voltage transmition line effect in pipeline espicially the electrostic effect
    Last edited by ah_khairy; 04-04-2008 at 09:49 AM.

    من مواضيع emy medo :


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  5. #2

    Default Transmission Line EMF Interference with Buried Pipeline

    السلام عليكم
    اليك هذه الرابط املا ان تجد المطلوب
    الرابط هو
    http://www.who.int/peh-emf/meetings/...r02shwehdi.pdf

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  8. #4

    Default Transmission Line EMF Interference with Buried Pipeline:

    Electrostatic or capacitive interference:
    Occurs in the immediate vicinity of the overhead power lines when the pipe is laid on a
    foundation that is well insulated from the ground. The pipeline picks up a voltage
    relative to the soil, which is proportional to the voltage in the transmission line.
    Welded pipe lengths near high voltage lines must be grounded when the nominal
    voltage in the overhead lines exceeds 115 kV and the length of the welded section
    exceeds more than a few hundred feet to 1,000 ft. Electrostatic coupling is of minor
    consequence after construction, since even the best pipe coating will allow sufficient
    leakage to earth, through defects, to effectively ground the electrostatic charge

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