Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: With appropriate adapters, can this be used to make 30 amps from two 15/20 amp recepticles???
Document: This product works as advertised but it could be better. It seems silly to me to make it without two 30 amp sides instead of one 30 amp side and one 15 amp. Where I use it there are two 30 amp outlets available. I see no reason not to have the adapter with two 30's and then if someone wanted to use a 20 or 15 amp they could use an adapter for that side of the cable.
If there is no one plugged into the site beside you and there is another circuit not being used or some campgrounds have seperate at your site 30 Amp plus a seperate 20 Amp service plug. They can't be fed off the same circuit, they have to be  on seperate circuits for this to work.This is where you can join the two together and have 50 Amp service to your RV. It will not work if the campground has a ground fault on the 20Amp service plug.
Works great and came in handy at the Sturgis Bike Rally where the RV park only had 30 and 15 amp service. Most newer parks and those who have been updated have some 50 amp service but a lot of the older ones do not, espically out in the middle of nowhere where we often stay. The price was great and I ordered one for my friend and one for myself and the two adapters together cost us the same price as one adapter at the local RV dealer.
The first and only opportunity that I have had to use this two into one plug was very disappointing. The 10 amp (Ground Circuit Interrupted)would overload and trip from the 30 amp plug. The fine-print warns of a GCI and some other restrictions. I don't expect to ever be able to use this $50 waste to acheive 45 amps of electrical service! Trust me; don't waste your money!
Great product, I stayed at a campground with separate 30 and 15 amp circuit and it worked exactly as advertised. Probably won't have to use often, but have used it twice in the last month.
Has not worked as advertised in any campground or resort with 30 amp service and 20 amp or 15 amp110 outlet
This is a very useful adapter for your RV when you have 50amp capability but not 50amp service. With this product and availability of a 15amp and 30amp source, you can achieve 45amps - usually enough to run everything necessary in your RV. If you only have two 15 amp available, then you can step down the 30amp side with another adapter - 30 to 15 and still achieve an overall capability of 30amps. Almost impossible to find in a store but available here on Amazon.
This device solves the low amp problem when only 30 amp service is available and you need 50. Please note that if the 15/20 amp outlet is a GFI, it will trip the ground fault and not work. You can also use an adapter and use (2) 30 amp outlets.
It is one more thing in the tool box - It helps at camp sites that has 30 amp and a 15/20 plug - as long as no GFI is involved. I also use it with an additional converter plug to create 2 20amp - thus you can run 2 reg extension cords - plug them into 2 different outlets at home.
The concept is great and I've tried three of these with the same results. Everytime I connect the small 15-20 amp plug along with the larger 30 amp plug it pops the GFCI outlet. Most every campground uses GFCI for safety so that makes the product pretty much useless for me. I also had my mechanic and parts guy try their version at the trailer place. They had the same results. Ugh. Would have been great.
Answer: yes