This is probably not new news to everyone, but I missed it. It relates to the use of Arc-Fault Circuit-Interrupter breakers with Lutron lighting systems in dwelling unit bedrooms.
LUTRON ARC-FAULT EMAIL
Using Arc-Fault Circuit Interrupter (AFCI) Breakers With Homeworks InteractiveTM
Frequently Asked Questions (FAQs)
What are Arc-Fault Circuit Interrupter (AFCI) breakers?
An Arc-Fault Circuit Interrupter (AFCI) is a safety device designed to help protect against fires resulting from unsafe wiring conditions. The AFCI monitors current flow. Once an unwanted arcing condition is detected, the control circuitry de-energizes (trips) the circuit.
The 2002 edition of the National Electrical Code (section 210.12) requires all branch circuits that supply 125-volt, single-phase, 15- and 20-ampere outlets installed in dwelling unit bedrooms to be protected by an arc-fault circuit interrupter listed to provide protection of the entire branch circuit. This requirement became effective January, 2002 for all new installations.
How do Homeworks Interactive products work with AFCI breakers?
Lutron uses phase-control dimming technology in its products. Phase-control dimmers may cause nuisance tripping when used with Arc-Fault Circuit Interrupters (AFCIs).
This is because Arc-Fault Circuit Interrupters can interpret a dimmer turning on as an arc-fault condition. This nuisance tripping is dependent on the load wattage and the number of high wattage lamps on each Arc-Fault Circuit Interrupter. The use of high wattage lamps or large wattage loads will increase the chance of nuisance tripping when a dimmer turns on. This is only an issue when a dimmed circuit turns on and is not encountered during dimming or fades.
To avoid nuisance tripping of Arc-Fault Circuit Interrupters when connected to Lutron dimming equipment, the following guideline should be followed:
Note: This is limited to dimming loads only, all non-dim loads can operate at their maximum wattage.
How does this impact my project design?
The HWI Panel Wizard may be used
first to optimize the job without AFCIs as follows:
GRAFIK Eye Main Units
Can I retrofit AFCI breakers in Homeworks HWBP panels?
Yes. The panels may be modified to accommodate the installation of AFCI breakers. For questions on retrofitting AFCI breakers into the HWBP-8D and HWBP-2S panels, you may contact Jon Keagy at (610) 282-7446.
Copyright © 2002 Mike Holt Enterprises,Inc.