A collection of featured documents from our library that are popular among our users or otherwise noteworthy.
Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 4: Cords and flexible cables
Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 7: Heat resistant ethylene-vinyl acetate rubber insulated cables
Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 8: Cords for applications requiring high flexibility
Connecting wires having a rated voltage of 20 kV and 25 kV d.c. and a maximum working temperature of 105 °C for use in television receivers
AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guidance for installation and operation
AC motor capacitors - Part 2: Motor start capacitors
Lead-acid traction batteries - Part 1: General requirements and methods of tests
Measuring relays and protection equipment - Part 1: Common requirements
Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities
Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
Electrical relays - Part 13: Biased (percentage) differential relays
Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests
Measuring relays and protection equipment - Part 24: Common format for transient data exchange (COMTRADE) for power systems
Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
Measuring relays and protection equipment - Part 27: Product safety requirements
Direct acting recording electrical measuring instruments and their accessories
Sealing test for pressurized waveguide tubing and assemblies
Scales and sizes for plotting frequency characteristics and polar diagrams
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