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Raceways and Wireways for Channel LettersRaceways are (usually) 8” tall by 8” deep boxes running the length of a sign, behind the channel letters. This box contains all of the electrical components powering the sign, so that the raceway can be fastened to the outside of the building, and only one power hole needs to be drilled through the wall. (If the letters are mounted directly to the wall each letter requires two (2) 1” diameter holes be drilled through the wall, and all of the electrical components install behind the wall.) The best raceways are manufactured of aluminum, with a structural steel inner frame which is primed, before the aluminum skins are installed, to keep it from rusting. Raceways are usually painted to closely match the wall color.
The best raceways incorporate glass
neon electrode connectors, making the sign much more
reliable. A raceway should include a disconnect switch to help you comply with your city's electrical code. Wireways are 2” deep by 12” tall (usually) aluminum boxes which contain all of the wiring except the transformers (which mount behind the wall.) Wireways are usually incorporated behind backplates and required by the landlord. They are not deep enough to incorporate glass neon electrode housings. The use of raceways is usually dictated by a landlord also, or by a lack of access behind the wall where a sign is to be installed. Both are easier to move at a later date. Notice the raceways between the letters and the wall in the installation on the right. |
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