You'll want to brush up on punctuation rules, the space before an exclamation mark is a dead giveaway of a French writer :)
(Source: fellow en-GB-using-frenchperson)
I've racked my brain trying to write it in a good enough approximation, but honestly the "eu" sound doesn't have a match in most English accents, and neither does the "r", so it wouldn't make much sense trying to write it down in English. Youtube will give you hundreds of videos pronouncing it correctly if you want to check!
Well if it's negative 48V the electricty flows out of your circuit and back to the grid, so you need to make it positive to have the electricity come in.