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1206.3.4 Capacitors and Equipment
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The design and installation of capacitor energy storage systems and related equipment shall comply with Sections 1206.3.4.1 through 1206.3.4.5.
1206.3.4.1 Listing
Capacitors and capacitor energy storage systems shall comply with the following:
- Capacitors shall be listed in accordance with UL 1973.
- Prepackaged and preengineered stationary capacitor energy storage systems shall be listed in accordance with UL 9540.
1206.3.4.2 Prepackaged and Preengineered Systems
In addition to other applicable requirements of this code, prepackaged and preengineered capacitor energy storage systems shall be installed in accordance with their listing and the manufacturer's instructions.
1206.3.4.3 Energy Management System
An approved energy management system shall be provided for monitoring and balancing capacitor voltages, currents and temperatures within the manufacturer's specifications. The system shall transmit an alarm signal to an approved location if potentially hazardous temperatures or other conditions such as short circuits, over voltage or under voltage are detected.
1206.3.4.4 Capacitor Chargers
Capacitor chargers shall be compatible with the capacitor manufacturer's electrical ratings and charging specifications. Capacitor chargers shall be listed and labeled in accordance with UL 1564 or provided as part of a listed preengineered or prepackaged capacitor energy storage system.
1206.3.4.5 Toxic and Highly Toxic Gas
Capacitor energy storage systems that have the potential to release toxic and highly toxic materials during charging, discharging and normal use conditions shall comply with Chapter 60.
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