maximum-rated step voltage
21Dance Dance Revolution SuperNova 2 — This article is about the worldwide arcade and Japanese PlayStation 2 release. For the North American PlayStation 2 release, see Dance Dance Revolution SuperNova 2 (North America). For the upcoming European PlayStation 2 release, see Dancing… …
22Data center — An operation engineer overseeing a Network Operations Control Room of a data center. A data center (or data centre or datacentre or datacenter) is a facility used to house computer systems and associated components, such as telecommunications and …
23Dance Dance Revolution — For other uses, see Dance Dance Revolution (disambiguation). Dance Dance Revolution The current Dance Dance Revolution series logo introduced in 2009. Genres …
24Solar cell — A solar cell made from a monocrystalline silicon wafer …
25Hydro-Québec — Type Government owned corporation Industry Electric Utilities Founded …
26Compact fluorescent lamp — Low energy light bulb redirects here. For other low energy bulbs, see LED lamp. The tubular type compact fluorescent lamp is one of the most popular types in Europe …
27Dust collector — Two rooftop dust collectors in Pristina, Kosovo A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle heavy… …
28Single-wire earth return — (SWER) or single wire ground return is a single wire transmission line for supplying single phase electrical power from an electrical grid to remote areas at low cost. It is principally used for rural electrification, but also finds use for… …
29Secure Digital — SDHC redirects here. For the gene, see SDHC (gene). SD, SDHC, SDXC SD (top), miniSD, microSD cards Media type Memory card Capacity SDSC (SD): 1 MB to 2 GB although 4 GB cards are available SDHC: 4 GB to 3 …
