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NR - BR 949 ISSUE 3 - SPECIFICATION FOR MINIATURE DC NON-SAFETY TIME DELAY RELAY UNIT, PLUG-IN TYPE, FOR USE IN POINT CONTROL CIRCUITS Organization: NR
Date: 1976-07-01
Description: The specification relates to design requirements for a D.C. miniature non-safety type of relay unit incorporating a device which delays the operation of a relay for a predetermined time after the unit is energised.
NR/L3/TEL/0092 ISSUE 4 - DISCONNECTION AND AT RISK PROCESS FOR TELECOM BEARER CIRCUITS AND SYSTEMS INCLUDING GSM-R EQUIPMENT - COMPLIANCE DATE: 3 SEPTEMBER 2011; CONTAINS NR/BS/LI/377 Organization: NR
Date: 2011-06-04
Description: Purpose This standard specifies the process to reach a clear understanding in applying for and agreeing the method of handover and handback of safety critical circuits including GSM-R equipment to minimise the risk of personal injury and train delay.
UL 508 - UL STANDARD FOR SAFETY INDUSTRIAL CONTROL EQUIPMENT - SEVENTEENTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING OCTOBER 16, 2013 Organization: UL
Date: 1999-01-28
Description: f) Resistors and rheostats. g) Proximity switches. h) Time-delay relays and switches. i) Resistors and rheostats intended for industrial heating and lighting, including those for motor generator fields.
VA 28 05 00 - COMMON WORK RESULTS FOR ELECTRONIC SAFETY AND SECURITY Organization: VA
Date: 2011-09-01
Description: The security system shall include but not limited to: physical access control, intrusion detection, duress alarms, elevator control interface, video assessment and surveillance, video recording and storage, delayed egress, personal protection system, intercommunication system, fire alarm interface, equipment cabinetry, dedicated photo badging system and associated live camera, report printer, photo badge printer, and uninterruptible power supplies (UPS) interface.
UL 60947-5-1 - UL STANDARD FOR SAFETY LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR – PART 5-1: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS – ELECTROMECHANICAL CONTROL CIRCUIT DEVICES - THIRD EDITION Organization: UL
Date: 2014-03-28
Description: It also applies to specific types of SWITCHING ELEMENTS associated with other devices (whose main circuits are covered by other standards) such as: – auxiliary contacts of a switching device (e.g. contactor, circuit breaker. etc.) which are not dedicated exclusively for use with the coil of that device; – interlocking contacts of enclosure doors; – control circuit contacts of ROTARY SWITCHES; – control circuit contacts of overload relays.
UL 698 - UL STANDARD FOR SAFETY INDUSTRIAL CONTROL EQUIPMENT FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS - THIRTEENTH EDITION Organization: UL
Date: 2006-11-07
Description: f) Resistors and rheostats. g) Proximity switches. h) Time-delay relays and switches. i) Resistors and rheostats intended for industrial heating and lighting, including those for motorgenerator fields.
UL - 698 BULLETIN - UL STANDARD FOR SAFETY INDUSTRIAL CONTROL EQUIPMENT FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS Organization: UL
Date: 2011-12-30
Description: f) Resistors and rheostats. g) Proximity switches. h) Time-delay relays and switches. i) Resistors and rheostats intended for industrial heating and lighting, including those for motorgenerator fields.
UL 1008 - UL STANDARD FOR SAFETY TRANSFER SWITCH EQUIPMENT - EIGHTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING OCTOBER 15, 2015 Organization: UL
Date: 2014-12-22
Description:   These requirements apply to transfer switches and their associated control devices including voltage sensing relays, frequency sensing relays, time-delay relays, and the like. These requirements apply to completely enclosed transfer switches and to open types intended for mounting in other equipment such as switchboards.
UL 1008S - UL STANDARD FOR SAFETY SOLID-STATE TRANSFER SWITCHES - FIRST EDITION Organization: UL
Date: 2012-11-15
Description:   These requirements cover transfer switches together with their associated control devices including voltage sensing relays, frequency sensing relays, time delay relays, and the like.  An automatic transfer switch as covered by these requirements is a device that automatically transfers a common load from a normal supply to an alternate supply in the event of failure of the normal supply, and automatically returns the load to the normal supply when the normal supply is restored.
NR - RT/E/S/11752 ISSUE 2 - TRAIN DETECTION (AKA NR/SP/SIG/11752) - COMPLIANCE DATE: 4 AUGUST 2001 Organization: NR
Date: 2001-08-01
Description: Train detection systems include: • track circuits (see References for the relevant Product Specifications), • axle counters (see RT/E/S/10129), • rail circuits (not yet included in this document), • other types of wheel detector, e.g. treadle, electromagnetic proximity device, • constant delay systems, e.g. grade crossing predictor, generally for use at level crossings (not yet included in this document), • block systems, including transmission based systems (these belong to a different asset system, as they are essentially systems for controlling the passage of trains), • supplementary systems, e.g. track circuit assister interference detector (TCAID), track circuit interrupter, track circuit operating device (T-COD), impedance bonds.
ARINC 741P2 - AVIATION SATELLITE COMMUNICATION SYSTEM PART 2 SYSTEM DESIGN AND EQUIPMENT FUNCTIONAL DESCRIPTION - 1986; INCLUDES SUPPLEMENTS 1-11 Organization: ARINC
Date: 2012-06-27
Description: The system is to be designed to ensure that aeronautical communications for safety and regularity of flight are not delayed by the transmission and reception of other types of messages.

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