In shipping it meant Royal Mail Ship, as in RMS Titanic. There are most likely a lot of other meanings also.
Usually "Root Mean Square", a way of comparing between DC and AC voltages.
Royal Mail Ship
rms. dat means Vp-p will be 325V.
A DIODE will breakdown at a certain reverse voltage if RMS VOLTAGE IS SPECIFIED THEN the actual voltage will be RMS volts times 1.41
It is an AC supply with an rms voltage of 230 v and a frequency of 50 Hz, as used throughout Europe.
RMS mean root mean square not all voltages are pure sine waves so the true RMS can be found by using this type of meter.
When people talk about 480V systems, they mean 480 is the RMS voltage.
RMS
rms is the best because 1 RMS = 100 PMPO
The RMS on Titanic stood for "Royal Mail Ship".
There is no proper formula to convert RMS to PMPO, but based on various observations it has been found out that 12W to 16W PMPO = 1W RMS.
Royal Mail Steamer
a survor of the rms Olympic the rms titanic and the brt=itannic is violet jessop who died in 1976
RMS watts is not a real measurement. The correct measurement is "average power", which is measured in "watts". It is dervied from RMS voltage, but that doesn't make it "RMS watts". "RMS watts" would be 22% higher than the correct "average watts".
There is such a thing as "RMS power", but it's not useful for anything, so don't use the term. No one measures the RMS of the power waveform. What they do is measure the RMS of a voltage waveform, and then use that to derive the averagepower. The correct term is "average power", not "RMS power". You could measure the RMS of the power waveform instead of the average, but your measurement would be 1.2 times too high.
The RMS Olympic was indeed a real ship. It was the sister ship to the RMS Titanic. It was retired in 1935.
rms. dat means Vp-p will be 325V.
The RMS Titanic was completed March 31, 1912.
The RMS Lusitania was 787 feet long.