-------- In message <28f942e8-b61d-4fa5-929d-923184828...@n1k.org>, Bob kb8tq writes:
>Energy flow is indeed inside the cable if things are set up and operating >correctly. Please note in this context that *nothing* about lightning strikes works the way you would assume it does. Cables run inside steel tubes protect the steel tube from lightning current because copper is a better conductor than steel - in particular when the leading flank is measured in kV/uS and the current in kA. Likewise, a 90 degree bend or a loop on the cable is a huge inductance to get all that high frequency energy through, so lightning tend to jump from bends and loops, to less inductive paths if possible Be careful with EMI/EMC clam-on ferrites, they can explode in lightning strikes. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
