SELV and PELV what is it? ? Learn the difference between the two types of transformer. 

In this video we will answer the questions - what is a SELV circuit, what is a PELV circuit and what is the difference and if there is a difference then why does it matter?
Where do we use SELV circuits? What do the initials SELV and PELV mean? Lots of questions arise from these types of circuits, so why use one in certain installations but not use the other.
What are the implications for safety in the circuit and what should I be aware of?
There are lots of factors to take into consideration.
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