band stop filter Alarm starting device Table 2-3 general rules for the development of written symbols in Electrical Technology (GB/T 7159-1987) basic symbols Single letter symbols for equipment, devices and components Bridge transistor amplifier Double letter symbol AB AD Component component Integrated...
such as fire alarm, low-voltage, mechanical, and plumbing, to make sure coordination is achieved and the direction is clear and concise in compliance with code.
(Continued ) 10594_Hickey_01_f.qxd 8/19/03 9:54 AM Page 17 18 Electrical Engineer’s Portable Handbook FIGURE 1.6 Fire alarm system checklist. (Continued ) 10594_Hickey_01_f.qxd 8/19/03 9:54 AM Page 18 1.2 ELECTRICAL SYMBOLS AND MOUNTING HEIGHTS Electrical Symbols Electrical symbols can...
DiagramDigital ElectronicsCircuit DiagramComputerElectrical InstallationSymbolsICsAutomationTelecommunicationElectronics ProjectPower ElectronicsSensorCarElectricalDifferenceBatteryPower FactorElectrical FaultsPower SupplyIndustrial KnowledgeLogic GatesAppliancesSound SystemHVAC SystemSafetyFormulaFire Alarm SystemBoatElectricalFull ...
DiagramDigital ElectronicsCircuit DiagramComputerElectrical InstallationSymbolsICsAutomationTelecommunicationElectronics ProjectPower ElectronicsSensorCarElectricalDifferenceBatteryPower FactorElectrical FaultsPower SupplyIndustrial KnowledgeLogic GatesAppliancesSound SystemHVAC SystemSafetyFormulaFire Alarm SystemBoatElectricalFull ...
7.1 Fire Alarm Indicators 7.2 Fire Alarm Sensors 8.0 Distribution Equipment 9.0 Communications—Teledata 9.1 Communications—Audio/Visual 9.2 Communications—Equipment 10.0 Site Work 11.0 Schematic Fault Circuit Interrupter, Personal Protection 11.1 One-Line Diagram Symbols— ...
The symbols that may be found in this document are defined as follows. Symbol Description Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. Indicates a hazard with a medium level of risk which, if not avoided, could result in ...
Other specifications under development by NEIS at the end of the 1990s included standards for electrical symbols, industrial lighting systems, motor control systems, raceways, cables, hazardous locations, industrial heat tracing systems, and telecommunications. ...
本工程电气部分包括动力系统、照明系统、防雷接地系统、门禁系统、电话和布线系统、自动消防 报警系统以及楼宇自控系统。 The electricity of the project including: Power system, Lighting System, Lightning & Grounding System, access control system, Telephone System, wiring system, Fire Alarm System and BAS sys...
ANSI/NEMA Z535.1 to 6 (Safety Labels and Signs, Colors, Criteria, Product Safety Tags, Product Safety Information in Manuals) Important standard for safety information, safety symbols, and labels, and their design, color coding, selection criteria, etc. NFPA 70E (Standard for ...