Updating split entry
This type of panel is configured such that it takes a maximum of 6 throws to shut all the power off.This type of Service Panel is called a Split-Bus Panel.In this case it only takes three throws to shut off all the power in the panel—still well under the 6 throw rule.These panels were common into the early 70’s and I still find them very often.Violations of this type are common with these panels as more circuits are desired and there just isn’t room in the panel for any more.Here is another panel with only three double pole breakers in the top six spaces but one of them has blue wires that run to the bus bars for the lower circuits.There are a couple of ways where it might “appear” to be missing—but is in fact there after all.
There is another type of panel that looks, at first glance, like it might be missing a main breaker.
Real estate agents and home owners need to understand the basic principles so that when the inspector calls for replacement of what appears to be a perfectly good panel, they can understand why.
The first point I will make is that ALL electrical services to the home MUST have a means of shutting off all the power.
was an ancient lightsaber design that dated back to the Great Scourge of Malachor.
It typically emitted three blades, a primary blade and two raw power vents known as quillons.