June 29, 2011

Electrical Engineering Terms - Numbers

  • 100BaseT - A synonym for the Fast Ethernet network standard. The "100" refers to a maximum data-transfer rate of 100 megabits per second over twisted pair, copper wire.
  • 10BaseT - A synonym for the Fast Ethernet network standard. The "10" refers to a maximum data-transfer rate of 10 megabits per second over twisted pair, copper wire.
  • 10K - A grade level Box or Cover rating. See "Incidental Light Traffic".
  • 1A - 1 Normally Open
  • 1B - 1 Normally Closed
  • 20A - A California ruling that has the investor owned utilities performing the under-grounding of electrical cables. The funds to perform the work are derived from rates and go into a sinking fund that is used at the discretion of the municipality the electric
  • 20B - A California ruling that has the investor owned utilities performing the under-grounding of electric cables. The funds to perform this work are derived from a combination of rates and the developer of the land the line is on. This work is done at the di
  • 20C - A California ruling that has the investor owned utilities performing the under-grounding of overhead electrical cables. The funds to perform this work are derived from the developer of the land the line is on.
  • 20K - A grade level Box or Cover rating. See "Occasional Traffic".
  • 2S1W - Two Speed, 1 Winding (motor).
  • 2S2W - Two Speed, 2 Winding (motor).
  • 3 Phase - See "Three Phase" and "Polyphase"
  • 600 Volt - Electrical systems, cables or service designed to be operated under 1000 Volts.
  • 600V-UD - 600 Volt Underground Distribution Cable.
  • 802.11a - A specification for a wireless LAN that operates in the 5GHz frequency range and provides a data transmission rate of 54Mbps using spread spectrum technology.
  • 802.11b - A specification for a wireless LAN that operates in the 2.4GHz range and provides a data transmission rate of 11Mbps using spread spectrum technology. This specification was known as Wi-Fi but the term now applies to 802a and 802g as well.
  • 802.11g - A specification for a wireless LAN that operates in the 2.4GHz frequency range and provides a data transmission rate, over short distances, of 54Mbps using orthogonal frequency division multiplexing (OFDM) technology.
  • 802.1x - A security standard for wired and wireless LANs.
 Source : www.youngco.com



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