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Are you currently working on a project that requires 277v? Also, do you currently have a 480v panel your working from?
We supply electronic ballasts for lighting in greenhouses. We are in Canada and here the standard voltage we supply is 347 Volts.
For a US customer, who currently has 480 volt service, he is asking for lights for his 480 service.Our supplier has said that 277 volts will work and that the electrician should know this.
I want to make sure nothing and no one gets fried in the process.
So the project is for 277 Volt lights using a service that is at 480 volts coming into the facility.
The only way for the customer to get 277 is if he runs one hot and one neutral from the 480v service. In a 480v service, measuring each leg to eachother will give you 480, but if you measure each leg to neutral, you will get 277.
OK...so how does a non electrician explain that in terms that an electrician understands....
What i guess I am asking is shouldn't this electrician know this?
In reality, he should just know this just like I did.
Is there a standard manual reference or guide that illustrates this in a text or on a web site that I can refer him to?
When telling the customer or the electrician your specs all you need to say is that the ballasts or fixtures run on 277v and they should know the rest from there.
That will be my last question and I will hit the accept button if you can provide such a link.....
Are you wanting a diagram of how to wire your fixture to a 480v service?
Either a diagram or a reference to a diagram.....if that is possible....
I can make you a diagram - that is no problem. If you would like me to do that I will. Do you want me to use one of your fixtures to illustrate this? If so I will need a link to your website.