Is this 3 phase?

[Im a Siren Addict3]

I Believe this is 3 phase but need to know for sure.

Thanks!

[murrfarms]

Looks like a three phase one to me, I can see three "hot" lines and the messenger wire on the service entrance coming to the pole.

[Im a Siren Addict3]

Looks like a three phase one to me, I can see three "hot" lines and the messenger wire on the service entrance coming to the pole.

Thanks!

[dilloncarpenter]

It looks like it's one of the really old and short ones like the ones that Bethany has.

[JasonC]

Now the question is what type of 3-phase?

[Im a Siren Addict3]

Now the question is what type of 3-phase?

There's different types of 3 phase?

[FSThunderboltfan1000]

Yes like open delta or also known as phantom phase.

[Im a Siren Addict3]

Yes like open delta or also known as phantom phase.

Is there a simple way to tell which type of 3 phase is being used on this siren?

[FSThunderboltfan1000]

Yes look at the power poles by the siren. If there are three transformers then it is regular 3-phaes if there are only one or two it is 3-phase open delta.

[FSThunderboltfan1000]

Here is what open delta looks like as an equation.