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Old 07-20-2016, 08:35 PM   #31
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I finally got to a trusted technician and added a breaker to separate the washer and dryer from the center AC and had him test and balance the load. We can now run everything at the same time showing about an 80 amp load which is beyond what I had thought possible. I still don't know why 100amp service is called 50 amp service. Thanks for all your help.
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Old 07-21-2016, 10:05 AM   #32
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I finally got to a trusted technician and added a breaker to separate the washer and dryer from the center AC and had him test and balance the load. We can now run everything at the same time showing about an 80 amp load which is beyond what I had thought possible. I still don't know why 100amp service is called 50 amp service. Thanks for all your help.
50 amp service max current each of two legs, providing 100 amps of service in parallel, not additive. I.e. You can't apply 60 amps on either branch, it will trip at 50 amps. That's why it's important to keep the two phases in balance or even load.

Therefore "50" amp service" is truly three times the capacity of single phase 3 wire "30 amp service".
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Old 07-27-2016, 08:59 PM   #33
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I believe this answer is wrong
A 50 amp rv service has one 30 amp and one 20 amp leg. You have 50 amps total. If you separate the washer and dryer, you will have to use a separate cord connected to a different power source
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Old 07-27-2016, 09:12 PM   #34
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I believe this answer is wrong
A 50 amp rv service has one 30 amp and one 20 amp leg. You have 50 amps total. If you separate the washer and dryer, you will have to use a separate cord connected to a different power source
No,
50 amp service is 2 legs of 120 V each with a 50 amp breaker feeding them. Total draw of all items in the trailer can be 80% of 100 amps for safety margin.
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Old 07-27-2016, 09:13 PM   #35
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50 amp service max current each of two legs, providing 100 amps of service in parallel, not additive. I.e. You can't apply 60 amps on either branch, it will trip at 50 amps. That's why it's important to keep the two phases in balance or even load.

Therefore "50" amp service" is truly three times the capacity of single phase 3 wire "30 amp service".
This is correct for total load 90 amps is 3 times 30 amps but with only 10% safety margin.
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Old 07-27-2016, 09:15 PM   #36
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I believe this answer is wrong
A 50 amp rv service has one 30 amp and one 20 amp leg. You have 50 amps total. If you separate the washer and dryer, you will have to use a separate cord connected to a different power source
A 50 amp rv service has two legs of 50 amp for a total of 100 amps. I did the wiring for 27 sites at a local CG. The post at the site has the 50 amp plug (two legs of 50 amp) a 30 amp and 20 amp which are tapped off one of the 50 amp legs.
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Old 07-27-2016, 10:25 PM   #37
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I am wrong. Thanks for correcting me
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Old 07-27-2016, 10:50 PM   #38
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Good thing about this site is someone will say you are mistaken without calling you a DA like many other forums know what I mean
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