stop inductance lines
hi
I have a intercom system I installed and the screen shows ac inductance line on screen is there any way to stop in???????
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Perhaps if you get your Nomenclature right, then we may understand what you mean. A pix would help.Originally Posted by techy21
hi
I have a intercom system I installed and the screen shows ac inductance line on screen is there any way to stop in???????
Last edited by beer4life; 09-06-13 at 07:22 PM.
it could be you have a earth loop. is it run off a single plug pak? also, make sure you dont get the cable from the door camera to the viewer screen near any mains cables .
let us know how you go
member. Austech dog squad: if it can be fixed the dogs will sniff it out
I'm assuming you mean AC hum bars?
As mentioned, possibly an earth loop.
If there's more than one power supply used, ensure they are on the same power circuit.
Often cabling is poorly shielded and subjected to interference.
As suggested, keep all cabling as far away as possible from mains cabling.
If it does need to cross mains cabling, keep separation as great as possible and at right angles.
Some clamp-on or loop-through ferrite chokes may help.
Possibly one of the plug packs has too much ac ripple. This is more likely if the plug packs are getting old and the caps are drying out.
Don't worry, it only seems kinky the first time.
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