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Voltage spike with a relay and isolated track section

I am new to the forum. I have learned a ton from you all, and am grateful for your knowledge. My question involves using a relay to activate track signals via isolated outside rail track sections. I am getting an additional 14 volts on the isolated outside rail after hooked up to the relay. Signal works perfectly when the train enters the isolated section. I am worried about the extra voiltage affect on the electricals of the engines. The relay is getting power from a separate Z1000 (14volt posts). I know this is where the voltage spike is coming from but I don’t know if it’s normal and why it’s happening. I hope someone can help me understand. Thanks in advance.

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
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www.ogaugerr.com

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