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Small Jobs Electric

The Knob and Tube Wiring Dilemma

First of all, what is knob and tube wiring? Knob and tube wiring is the original wiring method used from the late 1800’s until approximately 1945. It is a system that involved stringing individual conductor insulated wire across porcelain insulators called “knobs.” It is then fed through other porcelain insulators called “tubes.” If your home was built during this time period and hasn’t had an electrical upgrade, this is likely the wiring system that you have.

Is Knob and Tube Wiring Safe?

There are a number of concerns with knob and tube wiring. Here are just a few:

  1. It is an ungrounded system, which provides a greater chance of shock or electrocution and of damage to sensitive equipment.
  2. It is very old wiring, and in many cases has deteriorated, cracked or is missing insulation, which can lead to fires.
  3. It is common to find that newer wiring has been improperly connected to knob and tube wiring by amateurs. This results in dangerous conditions that could cause a shock hazard, reverse polarity problems, switched neutrals, overloaded circuits, and fire hazards. And that is just a few of the problems they create.

Just like other components in your home, such as your roof, air conditioner and plumbing, there comes a time when replacement is necessary. That time has come for knob and tube wiring. So, to answer the question “is knob and tube wiring safe?” – The answer is “NO.”

What Can You Do About It?

In our opinion, rewiring the home is the only solution that correctly addresses knob and tube wiring.

If your home has knob and tube wiring, and you are concerned about the safety of your electrical system, contact Small Jobs Electric and arrange for an assessment. This will prevent many problems going forward and give you much peace of mind. Give us a call today to schedule your appointment!

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