Low prices! Originals & Translations! Save your budget and time!
ONLINENORMS: Online Standards Store
Click View Shopping Cart
  1. Home
  2. NR
  3. NR BR 931 ISSUE A4 PDF

NR BR 931 ISSUE A4 PDF

NR BR 931 ISSUE A4 PDF

Name:
NR BR 931 ISSUE A4 PDF

Published Date:
05/01/1977

Status:
[ Active ]

Description:

Specification for Miniature Tractive Armature AC Immune DC Neutral Line Relay, Plug-In Type for Railway Signalling

Publisher:
Network Rail

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Russian version):
200 business days
SKU:
Choose Document Language:
$18.6
Need Help?
PDF ONLY

FOREWORD

The relays covered by this specification are for use in line circuits where alternating current at industrial frequency may be present in the circuit.

These relays must not be used to break circuits in which the energy dissipated at the contact exceeds the limit given in clause 12.1. In general, this means that equipment such as 1ever 1ocks must be spark quenched.

This specification relates to design requirements far A.C. immune miniature tractive armature D.C. neutral line relays of the plug-in type for use in railway signalling circuits.


Edition : A4
File Size : 1 file , 6.3 MB
Number of Pages : 32
Published : 05/01/1977

History

Related products

NR NR/L2/SIG/11201/MOD A2-16 ISSUE 1
NR NR/L2/SIG/11201/MOD A2-16 ISSUE 1
Published Date: 06/02/2018
Signalling Design Handbook: Dependability (Including RAMS)
$7.5
NR BRS-SM 3303 ISSUE 1
NR BRS-SM 3303 ISSUE 1
Published Date: 04/01/2014
HY-DRIVE MK2 POINT LAYOUT NR60 D LAYOUT
$5.7
NR BRS-SM 2201/2 ISSUE D
NR BRS-SM 2201/2 ISSUE D
Published Date: 11/26/1991
Rail Clamp Point Lock Mk 2 Cam Follower Closed Switch Detection
$5.7
NR NR/L3/MTC/ME0201/CAL273 ISSUE 1
NR NR/L3/MTC/ME0201/CAL273 ISSUE 1
Published Date: 06/07/2008
Calibration of Shunts
$5.7

Best-Selling Products

SAA/SNZ HB 104:1997
SAA/SNZ HB 104:1997
Published Date: 01/01/1997
A guide to year 2000 compliance
$28.116
SAA/SNZ HB 76:2010
SAA/SNZ HB 76:2010
Published Date: 08/19/2010
Dangerous Goods - Initial Emergency Response Guide
$20.196
SAA/SNZ HB1:1994
SAA/SNZ HB1:1994
Published Date: 10/17/1994
TECHNICAL DRAWING for students
$8.712
SAA/SNZ HB18.43.1:1998
SAA/SNZ HB18.43.1:1998
Published Date: 09/05/1998
Guidelines for third-party certification and accreditation Guide 43 - Proficiency testing by interlaboratory comparisons, Part 1: Development and operation of proficiency testing schemes
$4.95
SAA/SNZ HB18.43.2:1998
SAA/SNZ HB18.43.2:1998
Published Date: 09/05/1998
Guidelines for third-party certification and accreditation - Guide 43 - Proficiency testing by interlaboratory comparisons, Part 2: Selection and use of proficiency testing schemes by laboratory accreditation bodies
$2.376
SAA/SNZ HB18.58:1993
SAA/SNZ HB18.58:1993
Published Date: 01/01/1993
Guideline for third-party certification and accreditation, Part 58: Calibration and testing laboratory accreditation systems - General requirements for operation and recognition
$2.376