Electrical Terminology Glossary

Electrician and Electrical Contractor Terminology.

Find an electrical engineering term alphabetically:

Glossary 0-9

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.

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.

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