Acceptance tests for steam turbine speed control systems
Contains recommendations for the conduct of tests of speed control systems of steam turbines. Applies primarily to constant speed steam turbines but may be applied where appropriate for other types of turbines. The purpose of the tests described in this publication is to verify the criteria guaranteed by the manufacturer and to check compliance with IEC 60045-1.
Information technology — High density digital recording (HDDR) — Part 1: Unrecorded magnetic tape fo...
This part of ISO/IEC 8441 specifies requirements for
unrecorded magnetic tape designed for high density
digital recording (HDDR) having the following
characteristics:
a) nominal thickness 25,4 urn (0,001 in);
b) longitudinal magnetic orientation;
c) coercivity 72 kA/m (900 Oe) max.
These tapes are suitable for interchange in accordance
with ISO/IEC 8441-2.
Requirements for…
Information technology - High density digital recording (HDDR) - Part 1: Unrecorded magnetic tape fo...
This part of ISO/IEC 8441 specifies requirements for
unrecorded magnetic tape designed for high density
digital recording (HDDR) having the following
characteristics:
a) nominal thickness 25,4 urn (0,001 in);
b) longitudinal magnetic orientation;
c) coercivity 72 kA/m (900 Oe) max.
These tapes are suitable for interchange in accordance
with ISO/IEC 8441-2.
Requirements for…
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 5: Requirements for di...
Specifies the requirements for digital communicator systems using the public switched telephone network which are additional to those specified in IEC 60839-5-1 and IEC 60839-5-2. Covers switched connections providing event driven signalling between an alarm system and a remote centre.
Alarm systems - Part 5: Requirements for alarm transmission systems - Section 6: Requirements for vo...
Specifies the requirements for voice communicator systems using the public switched telephone network which are additional to those specified in IEC 60839-5-1 and IEC 60839-5-2. Covers switched connections providing event driven signalling between an alarm system and a remote centre.
Fire hazard testing - Part 2: Test methods - Section 2: Needle-flame test
Specifies a needle-flame test to stimulate the effect of small flames which may result from fault conditions within the equipment, in order to assess by a simulation technique the fire hazard.
This edition supersedes the first edition of IEC 695-2-2 (1980).
Has the status of a basic safety publication in accordance with IEC Guide 104.