Components for low-voltage surge protective devices - Selection and application principles for gas discharge tubes1 Scope This part of IEC 61643 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling and low voltage power distribution networks with nominal system voltages up to 1 000 V (r. m. s.) a. c. and 1 500 V d. c. They are defined as a gap, or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or

The method described is carried out in order to test axle box greases for ordinary-speed vehicles

It summarizes the high level architectures of the most important implementations and compares it with the CEN/ETSI/ISO ITS-Station architecture

Who is BS 5766-7 - Aflatoxin B1 in animal feeds for

Each abbreviation introduced in BS EN 61290-1-2 is explained in the text at least the first time it appears

BS 1722-9 specifies requirements for self-adjusting (nibbed) or welded mild steel (low carbon steel) fences with round or square verticals and rolled hollow section (RHS) or rolled steel joist (RSJ) posts and flat horizontals

This European Standard is not intended to be used for acceptance criteria and gives no information relating to the suitability of individual test systems for specific applications or requirements for test equipment

modification of protection indexes for enclosures (IP-code)

as well as enabling the users to execute the electrical test which helps them to check the endurance and durability of the batteries

electrical and other

BS EN 50421 applies to fixed stand-alone broadcast transmitters operating in the frequency range 30 MHz to 40 GHz when put on the market

multi-purpose vehicles

It defines demographic and other identifying data elements suited to capture and use for the identification of providers in health care settings and provides guidance on their application