Free Standards Download

IEEE 12207.2-1997 pdf download Industry Implementation of International Standard ISO/IEC 12207 : 1995 (ISO/IEC 12207) Standard for Information Technology— Software life cycle processes— Implementation considerations 1 Scope This guide provides implementation consideration guidance for the normative clauses...

IEEE C37.17-1998 pdf download IEEE Standard for Trip Systems for Low-Voltage (1 000 V and below) AC and General Purpose (1 500 V and below) DC Power Circuit Breakers UL489 Supplement SEMolded-Case Circuit Breakers and Molded-Case Switches...

IEEE C37.22-1997 pdf download American National Standard Preferred Ratings and Related Required Capabilities for Indoor AC Medium-Voltage Switches Used in Metal-Enclosed Switchgear 1.Scope This standard provides preferred ratings for indoor AC medium-voltage switches used in metal-enclosed switchgear...

IEEE C37.3-1997 pdf download IEEE Standard Requirements for High- Voltage Switches Overview This standard applies to all high-yoltage enclosed indoor or outdoor, and non-enclosed indoor or outdoor, switchesrated in excess of 1000 V. This includes such switch...

IEEE C37.37-1996 pdf download IEEE Loading Guide for AC High-Voltage Air Switches (in Excess of 1000 V) 1.1 Scope This loading guide applies to ac high-voltage air switches in excess of 1000 V rated in accordance with...

IEEE C37.73-1998 pdf download IEEE Standard Requirements for Pad-Mounted Fused Switchgear 1.Scope This standard applies to assemblies of single-phase and three-phase, dead-front and live-front, pad-mountedload-interrupter switches with expulsion, current-limiting, and other types of fuses in enclosures up...

IEEE C37.123-1996 pdf download IEEE Guide to Specifications for Gas- Insulated, Electric Power Substation Equipment 1. Overview 1.1 Scope This guide covers the cchnical requirenients

IEEE C57.16-1996 pdf download IEEE Standard Requirements, Terminology, and Test Code for Dry-Type 1.1 Scope This standard applies to series-connected dry-type air-core single-phase and three-phase outdoor or indoor reactors ofdistribution and transmission voltage class that are connected...

IEEE C57.121-1996 pdf download IEEE Guide for Acceptance and Maintenance of Less Flammable Hydrocarbon Fluid in Transformers 1. Overview 1.1 Scope This guide recommends tests" and evaluation procedures, as well as criteria and methods of maintenancefor less...

IEEE C62 64-1997 pdf download IEEE Standard Specications for Surge Protectors Used in Low-Voltage Data, Communications, and Signaling Circuits 1.1 Scope This standard applies to surge protectors for application on multiconductor and coaxial, balanced or unbal-anced, data,...