Force Housing

Double tapped circuit breakers are one of the most accepted electrical defects that I accept while doing home inspections in Minneapolis and Saint Paul, and they’re usually one of the easiest defects to factual. Today I’ll interpret what double tapping is, when it is and isn’t a scrape, why it’s a jam, and how to suitable this condition.

I didn’t consult an attorney before writing this article, so I feel like I should add a disclaimer before giving any electrical how-to advice: Don’t do any of this work if you’re not estimable. This is only an overview.

Definition: I don’t know of any official definition of a ‘double tap’. This is impartial what us home inspectors say when two wires are connected under one screw or terminal inside an electric panel. Sometimes this refers to two wires at one circuit breaker, other times it refers to two wires connected under one screw at the neutral bar. Today I’ll be focusing on improperly double tapped circuit breakers.

When it’s NOT problem: Double tapped wiring is ok if the breaker is designed for two wires. If a breaker is designed for two wires, it will say so factual on the breaker, and the terminal will be designed to bear two wires in dwelling. This is acceptable. To my knowledge, the only manufacturers that compose breakers that can be double tapped are Square D and Cutler Hammer… but not all of their breakers can be double tapped.

When it IS a problem: This is a predicament when the circuit breaker isn’t designed for two wires. The imprint on the circuit breaker will clearly location this.

Why it’s a problem: If the circuit breaker isn’t designed to absorb two wires, the wires could arrive loose at some point in the future, even if they feel very tight today. Loose wires can lead to overheating, arcing, and possibly a fire.

How to fix: The fixes I’m going to list below are a few well-liked ways of dealing with double tapped circuit breakers.

Pig Tail – This is usually the easiest and best repair. The offending wires simply gather disconnected from the circuit breaker, connected to a single wire with a wire nut, and that single wire gets connected to the circuit breaker. Now, I know what you’re thinking: “What’s so tough about that? ” The retort is nothing. This is a swiftly and easy fix.

Different Circuit Breaker – Another simple repair would be to replace the breaker with a type that is designed for two wires, as long as the panel is designed for it.

If there are more problems going on besides unprejudiced a double tap, the repair might obtain more enthusiastic. For instance, if a homeowner finished off a basement and added a circuit for the basement bedroom on to the breaker for the bathroom receptacles, simply adding a pig tail for the wires wouldn’t be a pleasurable repair, because the bathroom receptacles can’t be on a shared circuit. In this case, the wires would need to be split off on to two separate breakers. There are a few ways to do this.

Add A Circuit Breaker – If there is room in the panel, another breaker can be added, and the wires split off to the two different breakers.

Install A Tandem Breaker – If the electric panel is designed to spend tandem breakers, and a tandem breaker can be properly outmoded in lieu of the offending breaker, this is another acceptable fix. Some people refer to tandem breakers as half-height or half-size breakers. This is basically a arrangement to install two breakers in one slot.

If a panel will find tandem breakers, it will say so inside the panel, and the specific locations where tandem breakers can be ancient will be identified. A panel may allow all tandem breakers, no tandem breakers, or some tandem breakers.

When none of the above solutions are possible, the repair might involve replacement of the panel with a larger one, or the addition of a subpanel. This would obviously score great more expensive.