How to Safely Replace a Ceiling Light | Ask This Old House
A video on YouTube. In DIY & Home Repair, a Krater category.
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A homeowner and a contractor replace an old ceiling light fixture and inspect the existing wiring to ensure it meets fire safety standards for older homes.
From the video
Answers: How to safely replace a ceiling light fixture
- ceiling light replacement
- electrical wiring inspection
- junction box installation
- wire temperature ratings
What it concludes
- Light fixtures that take incandescent bulbs in older homes with lower temperature-rated wiring can cause insulation to become brittle and potentially arc or cause a fire.
- Homes built before 1985 require supply wire rated for at least 90 degrees Celsius when installing modern light fixtures.
- Wire with type NM-B designation is rated for 90 degrees C and is safe for newer fixture installations, whereas older type NM wire rated for 60 degrees C is not.
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