Interrupting Capacity (KAIc)

Can I use a 10 kAIC main breaker in a main disconnect or does it have to be a 35 kAIC main breaker? I have a 10 kAIC, 225 amp breaker on hand, and I did not want to have to buy a new 225 amp 35 kAIC breaker if I did not have to. My indoor load center has a 10kAIC, but the outdoor, main disconnect,...

Replacing a 25 year old York split system. Looking at two heat pump option to replace (York & Trane) One dealer ran their heat load program and said we needed a 3 1/2 ton unit (the Trane). The other deal sized it based on the existing unit to be replaced and square footage of house (about 2250)...

I want to install pvc below grade at my downspouts. There will be several downspouts that run into the pvc trunk line via t connectors. Trying to find out how much water 4" and 6" pvc will carry to see if I can start with 4" then down the line as more downspouts are connected to the system step...

A particular type of plastic soap bottle is designed to have a capacity of 15 ounces. There is a variation in the bottle manufacturing process. Based on historical data, suppose that the bottle capacity can be reasonably modeled by a normal distribution with a mean of 15 ounces and a standard...