Saturday, April 30, 2011

Dedicated Circuits Everywhere


A kitchen is the home of the dedicated circuit. There are so many high-wattage devices here that too many on one circuit could cause it to trip; therefore, the code says these devices should be split up. Specifically, a kitchen should have individual dedicated circuits for the following loads:
  • All built-in appliances including the dishwasher, range, microwave oven, trash compactor, and disposer
  • Small, countertop appliances (food processors, toasters, and so on)
  • Lighting fixtures (cannot be part of the preceding circuits)
A minimum of two 20-amp small-appliance circuits must be installed to bring a kitchen up to code. These same circuits can supply power to receptacles in adjoining rooms including the breakfast nook and the dining room, but that’s as far as they can go. You can’t run your bedroom clock radio off a kitchen circuit. Beyond the minimum, which is all the code addresses, you or your electrician must consider how your kitchen will be used. An espresso machine, for example, needs its own dedicated circuit if it runs at 1,200 or 1,500 watts to avoid tripping the breaker every time the espresso machine is running and you decide to use the toaster. You would still be legal with your two small appliance circuits; you just wouldn’t be practical given your intended use of the kitchen. If you have a lot of small appliances and use them regularly, consider adding a third or even a fourth dedicated circuit.

Kitchen Wiring

If you’ve ever lived with an outdated kitchen, you’ll appreciate a modern one. Microwave ovens, food processors, and home-model espresso makers didn’t exist in the 1920s and 1930s. One or two receptacles were plenty for the portable appliances available at the time. Trying to make do with your parents’ or grandparents’ wiring at the end of this century is an exercise in frustration, not nostalgia. As you plan your kitchen upgrade, keep in mind any future remodeling. You might not be ready to replace cabinets, move walls, or upgrade appliances now, but you might in a few years. There’s no point in going all out with your electrical changes if you have to redo them later. By all means, add the necessary receptacles, but think twice before adding those fancy light fixtures. All it takes is a different cabinet configuration or the addition of an island to throw your lighting pattern askew. What if you move your electric range or refrigerator? If you run new circuits for them now in their present locations, you’ll have to run them again later. Stick with the necessary work for your safety and convenience now. Of course, if you don’t plan to do any extensive future kitchen remodeling, go ahead with a full electrical makeover now.

Kitchen and Electricity


We take our kitchens very seriously. In years past, a kitchen was hidden away and was seen as a more utilitarian room used simply for the storage and preparation of food. These days, we dine, mingle, read the paper, and socialize in this room, which often has a family room directly connected to it. It’s one of our home’s biggest overall energy consumers, and it demands a lot of wiring, devices, and appliances. Given the multitude of tasks and uses of a kitchen as well as the code requirements, you need to pay special attention to its circuits and the placement of light fixtures and receptacles. As previously discussed, you’ll want plenty of task and ambient lighting. You’ll also need a number of dedicated circuits for individual appliances. On top of that, some receptacles require GFCI protection and some do not. A well-designed kitchen is a joy to be in and inevitably will become the hub of your house. Virginia Woolf said, “One cannot think well, love well, sleep well, if one has not dined well.” I certainly won’t claim that meeting the National Electrical Code in your kitchen will improve all these areas of your life, especially if you live mainly on microwaved hamburgers, but at least you’ll get a better look at what you’re eating.