JAOMAD Glossary B:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Intro
B—Baud rate if referring to communication speeds, representing number of signal elements (typically bits) transmitted per second; also: B(upper case)= byte if referring to storage; also: b(lower case)= bit if referring to storage; also: B(upper case) is symbol of ANSI thermocouple type for Platinum 30% Rhodium vs. Platinum 6% Rhodium; also: means "Burner , Combustion" when used in first alpha character position of an ISA instrument function tag [see ANSI/ISA S5.1-1984 (R1992)].
ß—(Beta) see Beta Ratio, Beta Test; also: new products undergo beta testing shortly before release, Beta being Latin for "still doesn't work," J see Alpha.
B Roll—In video development, video footage that is edited over voice to illustrate issues being discussed; see A/B Roll.
B2B—Business-to-Business; type of e-commerce approach using electronic interactions to conduct business among enterprises, typically as a result of formal, contractual arrangements; functions include sophisticated web authorization and control for delivery of sensitive prices, contract and content information for each partner; catalogs that provide custom views based on access control and parametric search for serious business buyers; and order entry functions such as standardized "ship to" locations, dynamic order recalculation and payment options B2B is largest transaction section on Internet.
B2C—Business-to-Consumer type of e-commerce approach: using electronic interactions to conduct business with consumers; B2C may include formal relationships (e.g. customers with assets under care or with subscription services or content) and ad hoc relationships formed in real time to enable a new user to buy, sell or access information such as placing an order over the web, checking inventory, e-mail confirmation to customer, and routing order to drop-ship supplier, third-party fulfillment house(s), or company controlled warehouse(s).
Back Office Applications—Refers to applications designed for an organization's non-customer facing departments such as manufacturing and accounting.
Backbone—High-speed line or series of connections that forms a major pathway within a network; term is relative- backbone in a small network will likely be much smaller than many non-backbone lines in a large network.
Backbone Network—Name given to core network connecting major sites; traditionally, transmission facility designed to interconnect low speed distribution channels or clusters of dispersed user devices; currently defined as high speed line or series of connections which form major high bandwidth pathway within given network.
Background—In computer multiprogramming, environment in which low priority programs are executed; also: in screen displays, that part not occupied with characters or graphics (which are “foreground”).
Backpanel—Wiring board, usually constructed as printed circuit; see backplane.
Backplane—Wiring board, usually constructed as printed circuit, used to provide required connections between logic, memory, and input/output modules; usually located in back of rack, which has sockets into which specific boards fit for interconnection; typically provides power and allows boards to communicate at high speeds.
Backscattering—In fiber optic cable, return of portion of scattered light to input end of fiber; scattering of light in direction opposite to its original propagation.
Backup—System, device, file, or facility that can be used as alternative in case of malfunction or loss of data; see Cold Backup, Hot Backup, Warm Backup.
Backward Compatible—Designs which provide compatibility with earlier versions; usually called Reverse Compatible.
Backup Domain Controller (BDC)—In Windows NT server, a copy of Primary Domain Controller (PDC); is periodically synchronized with PDC; see PDC & Trust Relationship.
BACnet—Building Automation and Control network; object oriented model of standard automation system network supported by ASHRAE for high speed, low cost network for commercial building services, but not designed for industrial process control.
Bad Break—In typographical composition of screen displays and printing, starting page or ending paragraph with single word, or "widow."
Balloon—In instrumentation, synonym for Bubble, circular symbol used to denote and identify purpose of an instrument or function; it may contain tag number.
Ballot Box—In typographical composition of screen displays and printing, open square bullet, usually intended to receive checkmark.
BALUN—BALanced/UNbalanced; in the IBM® cabling system, refers to impedance matching device used to connect balanced twisted pair cabling with unbalanced coaxial cables.
Band Pass Filter—In digital signal processing (DSP), filter which passes signals in certain range of frequencies and attenuates signals above and below that range.
Band Splitter—In communication, multiplexor designed to split available bandwidth into independent narrower band subchannels, each suitable for data transmission at fraction of total channel's data rate.
Bandwidth—In communication, capacity occupied by individual signal; range of frequencies available for signals; range of frequencies occupied by transmitted modulated signal and lying to each side of the carrier wave frequency; the difference, expressed in Hertz (HZ), between highest and lowest frequencies of transmission channel (generally the greater the bandwidth, the more information can be sent through at a given time); also: in electronics, range of frequencies that can pass over a given circuit; also: in process control, symmetrical region around set point in which proportional control occurs; also: amount of space occupied by a group of musicians. J
Banner—Advertisement that appears on a Web site; format is a "banner", a combination of graphic and textual content entreating the Web site user to "click through" for further information on the advertised product or service; also: term used to identify similar acting strip on a video screen of control system to display navigation and/or controlling functions which appears over the process graphics.
Barrel of Proximity Clearance—See Clearance, Barrel of Proximity.
BAS—Building Automation Systems; also: Business Area System; also: Business Automated Services; also: Business Activity Statement; also: Broadband Access Server (Switch); also: Bit-Rate Allocation Signal; also: Baseline Assessment Strategy.
Base Address—In computers; memory address that serves as starting address for programmable registers.
Baseband—Technique in which signal is transmitted in its original form and is therefore not changed by modulation; Ethernet, Token Ring, and ARCnet are examples which use entire bandwidth of media without modulating digital signal; signal frequency below point where signal is modulated as analog carrier frequency; also: in modulation, frequency band occupied by aggregate of transmitted signals when first used to modulate the carrier (IBM®); also: group of musicians playing low frequency instruments. J
BASEEFA—British certification and testing laboratory for testing equipment of different vendors to some common standard.
Baseline—In typographical composition of screen displays and printing, imaginary line on which the bases of characters sit.
BASIC—Beginner's All-purpose Symbolic Instruction Code; computer language Developed at Dartmouth to teach students programming; it features array and string manipulation; is widely used for educational and business applications, easily understood and appropriate for solving small problems; also: Bill (Gate’s) Attempt to Seize Industry Control J.
Basic Device—In FOUNDATION Fieldbus technology, any device not having capability to control communications on an H1 fieldbus segment.
Basic Input/Output System (BIOS)—Fundamental element of PCs and other computers; kind of built-in software that determines what a computer can do without accessing programs from a disk; commands used to tell CPU how it will communicate with balance of computer; information typically needed upon start-up; in some operating systems, that part of program which customizes it to specific computer.
BAT—Best Available Technology economically achievable in complying to EPA (U.S.) pollution prevention requirements.
Batch Manufacturing—Technique of manufacturing parts or finished goods in groups, lots, or batches in which each part or finished product in the batch is identical.
Batch Processing—In data processing, technique in which data is accumulated and processed in batches, as compared with interactive transaction processing; compare: Transaction Processing; also: in industry, production operation that does not operate continuously, but must be stopped for loading and unloading, after processing quantity of material or limited number of items.
BAUD—Bits At Unit Density; unit of digital signal speed, number of times discrete state (or condition) changes per second such as changes in frequencies, amplitudes, etc.; when each event represents only one bit condition, only then does baud rate equal bits per second (bps).
Baudot—Data transmission code in which five bits represent one character; use of letters/figures shift enables 64 alphanumeric characters to be represented; named for Emile Baudot, pioneer in printing telegraphy.
BB—Black Body; in physics, surface that absorbs all radiant energy falling on it; because incident visible light will be absorbed rather than reflected, surface will appear black; concept of such perfect absorber of energy is extremely useful in the study of radiation pyrometry.
BBD—Bucket Brigade Device.
BBF—Black Body Furnace; used to calibrate radiation pyrometers.
BBS—Bulletin Board Service; general access provided for users of computers connected to phone line, provided by group for general exchange of messages, illustrations, software, etc.; this can be commercial (paid subscribers), volunteer, or perhaps provided by product vendor for use by their customers.
BCC—Block Check Character; result of transmission verification algorithm accumulated over transmission block, normally added to end, such as CRC, LRC.
BCD—Binary Coded Decimal method to express individual decimal digits in 4-bit binary notation. (1=0001; 2=0010; 23=0010 0011).
BCH—Bose-Chandhuri-Hocquendhem; error checking technique.
BCS—Batch Control System; also: Bar Code Scanner; also: Basic Control System; also: Building Control System; also: Business Control System; also: Biomass Combustion Systems; also: Broadband Communications System; also: Broadband Communication Services; also: Broadband Communications System; also: Binary Clocking Sequence.
BDAT—Best Demonstrated Available Technology economically achievable in complying to EPA (U.S.) pollution prevention requirements.
BDC—Backup Domain Controller, see definition.
BDMA— Benzyldimethylamine.
BDS—Committee for Standardization and Metrology (in Bulgaria).
Beacons—See Clear GIF.
BEDORAM— Burst Extended Data Out Dynamic Random Access Memory; type of EDO DRAM that can process four memory addresses in one burst; but unlike SDRAM, can only stay synchronized with the CPU clock for short periods (bursts).
BGA— Ball Grid Array.
Behind the Panel—In instrumentation, term applied to location that is within area that contains instrument panel, its associated rack-mounted hardware, or enclosure within panel; 'behind the panel' devices are not accessible for operator's normal use, and are not designated as 'local' or front-of-'panel-mounted'; generally this term is equivalent to saying "not normally accessible to operator."
BEL—In communication, control character used when need exists for call to attention, may control alarm or attention devices.
Bell—AT&T® standards for devices that transmit over telephone lines, such as modems.
Benchmark—Fixed point of reference; standard for comparison; outstanding example, appropriate for use as model.
Bend Loss—Form of increased attenuation in optical fiber that results from bending fiber around restrictive curvature (microbend) or from minute distortions in that fiber (microbends).
Bend Radius—Smallest arc in cable which can be made without causing damage.
BER—Bit Error Rate.
BERT/BLERT—Bit Error Rate/ Block Error Rate Testing; error checking technique that compares received data pattern with known transmitted data pattern to determine transmission line quality.
Beta Ratio—In fluids, the count of particles in fluid before a filter compared to that after [ß = particles upstream/particles downstream]; also: ratio of diameter of pipeline constriction to unconstricted pipe diameter.
Beta Test—Pre-testing of product with selected "typical" users, to discover bugs before releasing to general sale; software undergoes beta testing shortly before it's released …Beta must be Latin for "still doesn't work," see Alpha Test. J
Bézier Curve—Description of character or symbol, or graphic by its outline used by computer drawing programs to define shapes.
BFSL—Best Fit Straight Line; line midway between two parallel straight lines enclosing all charted values of measurement; also known as independent linearity, which allows zero and full scale values, used to establish position of reference line, to be moved to points that minimize the nonlinearity specification of an instrument, often when zero is generally not zero and full scale will seldom equal actual or desired full scale of the instrument, such as with pressure devices.
Bias—Signal applied to electronic device to ensure that it operates on particular portion of its characteristic curve.
BILBO—BUilt In Logic Block Observer.
Bill of Material—Listing of all subassemblies, parts, and raw materials that go into parent assembly.
Bimetal Thermometer—Temperature sensing instrument in which two dissimilar metals are bonded together so that differential expansion of the dissimilar metals actuates pointer, indicating temperature.
Bin—In video development, place for storing piece of video footage.
Binary—In instrumentation, term applied to signal or device that has only two discrete states; when used in its simplest form, as in "binary signal," as opposed to "analog signal," the term denotes an ON/OFF or HIGH/LOW state, that is one which does not represent continuously varying quantities; base-2 counting system.
Binary Notation—Method of numerical representation with two as the base and thus having only two digits, "0" and "1;" easily represented in computing and transmission by two states in frequency, phase, amplitude, voltage, current, etc.
Biometric—To measure through biological techniques, typically for security, but also for interface to process control with voice, face fingerprint, iris, retina, etc.
BIOS—Basic Input/Output System; see definition.
Bipolar—Electrical signal range that includes both positive and negative values, such as –5 to +5 V.
BIPS—Billion Instructions Per Second (rough measure of processing power).
BIS—Business Information Systems; also: (Bureau of Indian Standards), member of IEC.
B-ISDN—Broadband Integrated Services Digital Network.
BIST—Built In Self Test.
BISYNC—BISYNChronous transmission; byte- or character- oriented communications protocol created by IBM® but which has become industry standard; uses defined set of control characters for synchronous transmission between binary coded data stations; also called BSC.
BIT—BInary digiT; digit (1 or 0) representing number in binary notation; smallest unit of information recognized by computers.
Bit Duration—Time it takes for one encoded bit to pass point on transmission medium; relative unit of time measurement used for comparison of delay times, such as propagation delay or access latency, where data rate of (typically high speed) transmission channel may vary.
Bit Error Rate/ Block Error Rate Testing—(BERT/BLERT) Error checking technique that compares received data pattern with known transmitted data pattern to determine transmission line quality.
Bit Depth—In digital graphics, number of bits used to represent color of each pixel in image: bit depth of 2 = black & white pixels, 4 = 16 colors or grays, 8 = 256 colors or grays, 16 = 65,536 colors, 24 @ 16.7 million colors, etc.
Bit Map—In computer imaging, electronic representation of page or chosen area of page, or illustration, indicating position of every possible spot (zero or one); pixel based (typically higher resolution on video screen) rather than object oriented (typically higher resolution on printer).
Bitbus—Process control and data acquisition communication by Intel® using 7 layers of OSI model, EIA-485 comms plus SDLC protocol plus 8044 chip; twisted pair, multipoint, up to 28 stations per segment, up to 500 round-trip messages per second.
BITE—Built-In Test Equipment.
Black Box Testing—See Functional Testing.
Blackbody—In temperature measuring devices, theoretical object that radiates maximum amount of energy incident upon it; not necessarily black, name was chosen because the color black is defined as total absorption of light energy; ideal surface that absorbs all incident radiation, regardless of wavelength, direction of incidence, and polarization; radiates the maximum energy possible for given spectral and temperature conditions and has emissivity of 1.00; see Emissivity.
Blamestorming—Sitting around in a group discussing why a deadline was missed or a project failed and who was responsible. J
BLOB—Binary Large OBject; in object oriented programming, can contain all kinds of data, such as images, sounds, graphics, programming codes, animations, etc.
Block—Group of digits transmitted as unit, over which coding procedure is usually applied for synchronization, addressing, or error control purposes; also called Frame.
Block Diagram—Illustration in which parts of process are represented by blocks or similar symbols.
Bluetooth—Wireless personal area network (PAN) technology from Bluetooth Special Interest Group founded in 1998 by Ericsson, IBM, Intel, Nokia and Toshiba; open standard for low cost short-range transmission of digital voice and data between mobile devices (laptops, PDAs, phones) and desktop devices; supports point-to-point and multipoint applications using omni-directional radio waves that can transmit through walls and other non-metal barriers; transmits in unlicensed 2.4GHz band and uses frequency hopping spread spectrum technique that changes its signal 1600 times per second; interference from other devices will not stop transmission, but speed is downgraded; name comes from 10th century King Harald Blatan (Bluetooth) of Denmark. For longer distances, see Wi-Fi.
BMP—Bit MaPped format method of saving graphics in electronic memory, used for exchanging data between computers; also: Best Management Practices, an EPA (U.S.) practice which is not standard per se but must be adhered to no matter what or result in loss of permit even if effluent limits are met; also: Best Manufacturing Practices, a term used in Computer Integrated Manufacturing models with similar meaning but with broader scope.
BMS—Burner Management System; terminology originating in power generation industry.
BNC—Bayonet-Neill-Concelman; bayonet-locking connector used on Ethernet 10Base2 thinnet coaxial cabling.
Board—In instrumentation, synonym for panel or panel board; see Panel.
BOB—Break-Out Box; testing device which permits user to cross and tie leads using jumper wires.
BOD—Biochemical Oxygen Demand of pollutants, calculated for EPA (U.S.) regulations; also: Business Object Document, see definition.
Bode Diagram—Diagram in which gain or shift in feedback control system is plotted against frequency; named from Bode's Theorem, which shows interdependence of phase angle and rate of change of gain of desired frequency.
BOF—Basic Oxygen Furnace; used for making steel.
BOL—Bill of Lading.
Boldface—In typographical composition of screen displays and printing, the heavier typeface version of type family.
BOM—Bill Of Materials; see definition.
Boolean Algebra—Process of reasoning or deductive system of theorems using symbolic logic and dealing with classes, propositions, or ON/OFF circuit elements such as AND, OR, NOT, EXCEPT, IF THEN, and others to permit mathematical calculations; derived from the 19th-century British mathematician George Boole, which, if nothing else, is a great factoid for your next dinner party. J
Booster—Repeater station that amplifies and retransmits received signal.
BOOT—Build, Own, Operate, and Transfer.
Boot—To start or restart computer system by causing instructions to be read from storage device (disk, etc.) into computer’s memory; involves loading part of operating system into computer’s main memory; if computer is already operating, it is called “warm boot,” otherwise it is called “cold boot” or “hard boot” where as “clean boot” is loading only main part of operating system; re-booting often clears memory & internal settings thus correcting for some “hangs;” see Hang.
BORAM—Block Oriented Random Access Memory.
BOSFET—Bipolar metal Oxide Semiconductor Field Effect Transistor; an optically isolated FET.
Bourdon Tube—Tubular elastic pressure sensing element which may be single turn, multiple turn, helical, or spiral in nature; as pressure increases, the element tends to straighten.
Boustrophedon—Writing lines “as the ox plows,” that is, lines are written (or printed) alternately back and forth, right to left on one, left to right on the next, etc.
Bozone—Substance surrounding stupid people that stops bright ideas from penetrating; the bozone layer shows little sign of breaking down in near future. J
BPA—Business Process Automation.
BPC—Barrel of Proximity Clearance; see definition Clearance, Barrel of Proximity.
BPCS—Basic Process Control System.
BPDU— Bridge Protocol Data Unit; a spanning tree protocol (STP) message unit that describes attributes of switch port such as its MAC address, priority and cost to reach; they enable switches that participate in spanning tree protocol to gather information about each other; See Spanning Tree Algorithm.
BPE—Business Process Engineering.
BPO—Business Process Outsourcing.
BPR—Business Process Reengineering.
Bps, B/s—Bytes Per Second unit of data transmission rate.
bps,b/s—Bits Per Second unit of data transmission rate.
BPT—Best Practicable control Technology currently available in complying to EPA (U.S.) pollution prevention requirements.
Break—In digital communication, signal to another station, usually to interrupt process of transmission.
Breakdown Voltage Rating—Maximum dc or ac voltage which can be applied across insulation portions of circuit or device without arcing or conduction to damage circuit components.
Breaker—Electrical power line circuit breaker.
Breakthrough—Vendor finally figured out how to sell it. J
Brick and mortar—Describes traditional company with non-web channels as sales outlet for its products or services.
Bridge—In communications, device that connects local area networks at data link layer (physical connection), using same communication method, medium, and addressing (using same protocol); also: in measurement, four sided circuit of common elements (resistors, capacitors, etc.), one of equal value in each of the four arms so that one will vary with an unknown change (to be measured) and one other is adjusted to match the change (determined by nulling current or voltage drop across circuit) thereby measuring amount of change.
Brightness—also luminance; in video displays, greatest light that monitor can emit without losing focus; measured in units called footlamberts.
Brix Scale—Hydrometer scale for sugar indicating percentage by weight of sugar in solution at specified temperature.
Broadband—Multi-channel communications technique that has grater bandwidth than voice grade line and is potentially capable of greater transmission rates; Transmits on one frequency, receives on another, multilevel duobinary am/phase shift keying; sometimes called Wideband.
Broadcast—In digital communication, method of simultaneously transmitting messages to all stations on network whether or not they have made request; protocol mechanism whereby group and universal addressing is supported; in networking, distinction is made between broadcasting and multicasting: Broadcasting sends a message to everyone on the network whereas Multicasting sends a message simultaneously to a select list of recipients.
Brouter—Device which determines whether data uses protocol that it can route, and bridges data it cannot route; does many of the tasks of bridges and routers without protocol restrictions of router; expensive, complex, and difficult to install.
Browser—Computer software program used to access and navigate web sites on an intranet, extranet, or the internet to find information, download files and print copies; most can display graphics, photographs and text; multimedia information such as sound and video may require additional software called "plug-ins;" as of 2000, there are two categories of browsers, one for stationary and one for mobile devices (using WAP / WML as standard); a browser connected to web-enabled controller can present operator interface graphics and information.
Brushless Motor—A synchronous three-phase motor that uses electronic commutation for current switching among the phases. Depending on the current waveform and torque characteristics, it is commonly called brushless dc when a trapezoidal current/torque format is used and brushless ac (or just simply brushless) when a sinusoidal current/torque format is applied.
BSC—BiSynChronous transmission; protocol created by IBM® but which has become an industry standard; uses defined set of control characters for synchronous transmission of binary coded data stations; also called BISYNC.
BSI—(British Standards Institution); member of IEC; British certification laboratory for testing equipment of different vendors to some common standard.
BSL—Best Straight Line; see BFSL.
BSP—Baseband Signal Processor; also: Beam Sample Pulse; also: Binary Space Partition; also: System Partitioning (processor allocation strategy) ; also: Bit Slip Probability; also: Black Steel Pipe; also: Board Support Package (embedded systems/applications); also: Body Segment Parameters; also: Boot Strap Processor; also: British Standard Pipe; also: Broadband Service Provider; also: Broad-Based Signal Processor; also: Bulk Synchronous Parallel (Computing Model); also: Burst Synchronization Packet; also: Business Server Pages (SAP); also: Business Service Provider; also: Business Standard Procedure; also: Business Strategy Panel; also: Business System Planning; also: Byte Stream Protocol.
BSR—Business Service Request, see definition.
BTEX—Benzene, Toluene, Ethyl benzene, and Xylene, consideration in EPA (U.S.) regulations.
BTF—Bend To Fit; comment is unstated last step of all do-it-yourself instructions. J
BTG—Boiler Turbine Generator combination; terminology originated in power generation industry.
BTL—Bridge Tied Load; power amplifier technique.
BTU—British Thermal Units; quantity of thermal energy required to raise one pound of water at its maximum density, 1°F.
Bubble, Balloon—In instrumentation, circular symbol used to denote and identify purpose of an instrument or function; it may contain tag number.
Buffer Circuit—Isolating circuit interposed between two circuits to minimize reaction from output to input; usually has high input impedance and low output impedance.
Buffer Coating—In fiber optic cable, protective layer such as acrylic polymer, applied over fiber cladding for protective purposes.
Buffer Memory—Temporary storage device used to compensate for difference in data rate and data flow between two devices (typically between computer and printer); also: called spooler.
Buffer Solution—In pH terms, solution that maintains set pH value regardless of added acids or bases; often used for calibration.
Buffer Tube—In fiber optic cable, hard plastic tube to hold one or more fibers.
Bug—Error or fault in software or hardware, named by Capt. Grace Hopper, USN for moth which shorted relay in first electric computer (Eniac, c.1940); she dutifully logged in her required report: "reason for problem, bug in system." K; also: defined by some wags as “an annoying feature.”J
Bulb—In liquid-filled thermometer, area at tip (sensing portion) of filled system containing the liquid reservoir, hence the largest proportion of the expanding fluid (minimizing inaccuracies).
Bullet—In typographical composition of screen displays and printing, solid dot used as an ornamental character, usually to highlight an important item in the text.
Bulletin Board (Service)—General access provided for users of computers connected to phone line, provided by group for general exchange of messages, illustrations, software, etc.; this can be commercial (paid subscribers), volunteer, or perhaps provided by product vendor for use by their customers.
Bumpless Redundancy—Ability to change processors controlling a process (changeover) without affecting the process.
Bumpless Transfer—Process control situation in which control output is maintained at same level while transferring from auto to manual control.
Burn-in—See HALT.
Burst Fire—Method of controlling power that repeatedly turns ON and OFF full AC cycles; often called zero-cross fire, it switches close to the zero-voltage point of the AC sine wave; variable-time-base burst fire selectively holds or transits AC cycles to achieve the desired power level.
Burst Mode—In digital communication, high speed data acquisition mode in which data points are measured as quickly as possible then held for subsequent conversion to reduce skew.
Burst Pressure—Maximum pressure applied to device such as transducer, sensor, or case without causing leakage.
Burst Proportioning—Fast cycling output form ON time proportioning controller used in conjunction with solid state relay, typically used in control of electric furnaces to prolong life of heaters by minimizing thermal stress.
Bus—Transmission path or channel; an electrical connection with one or more connectors through which all attached devices receive all transmissions at same time; in digital communication, linear LAN topology such as Ethernet or token bus, where all network nodes "listen" to all transmissions, but each responds only to those addressed to it.
Bus Arbiter, Bus Scheduler—Device dedicated to task of regulating fair allocation of bus bandwidth in digital communication.
Bus, Live—Electrical power line bus bars which are normally energized.
Bus, Laminated—More than one electrical power line bus bar per phase, connected in parallel.
Bus, Removable Link—Used in electrical power line current transformer compartment to link line and load bus together; this removable section of bus is designed to allow power utility people to install current transformers.
Bus Stubs—That part of electrical power line bus bar reserved for termination of conductors, sometimes called Lug Landing.
Busway Service Head—Termination facilities required for electrical power line when terminating high voltage service conductors to bus bars enclosed by a raceway (bus duct).
BVS/DMT—(Bergbau-Versuchsstrecke / Deutsche Montan Technologie GmbH); German national intrinsic safety testing (BVS) and certifying agency (DMT) mark.
Byte—Binary element string functioning as unit, usually shorter than computer "word;" bytes made up of six to eight bits are most common; also called a "character," and allow representation of up to 256 different pieces of information (00000000 to 11111111).
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Intro