ENA ER P25 : ISSUE 2 2018
Current
The latest, up-to-date edition.
THE SHORT-CIRCUIT CHARACTERISTICS OF SINGLE-PHASE AND THREE-PHASE LOW VOLTAGE DISTRIBUTION NETWORKS
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 The incoming service arrangements
5 The PSCC on the DNO's LV distribution
network
6 Contribution to PSCC from LV generation
or motors
7 Estimation of the PSCC at the supply terminals
8 Selection of protective devices
Bibliography
Describes guidance on the estimation of maximum prospective short-circuit current (PSCC) at the supply terminals of existing and planned electrical installations which are connected to DNO LV networks via a single-phase service rated up to 100 A or a poly-phase service rated up to 400 A per phase.
| DevelopmentNote |
Formerly, it was ENA ER P25-1. (01/2018)
|
| DocumentType |
Standard
|
| PublisherName |
Energy Networks Association (UK)
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| Status |
Current
|
| BS EN 60439-3 : 1991 | LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 3: PARTICULAR REQUIREMENTS FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES INTENDED TO BE INSTALLED IN PLACES WHERE UNSKILLED PERSONS HAVE ACCESS FOR THEIR USE - DISTRIBUTION BOARDS |
| ENA ER G81-6 : ISSUE 2 2016 | FRAMEWORK FOR NEW INDUSTRIAL AND COMMERCIAL UNDERGROUND CONNECTIONS - PART 6: INSTALLATION AND RECORDS |
| ENA TS 35-1 : ISSUE 6 2014 | DISTRIBUTION TRANSFORMERS - PART 1: COMMON CLAUSES - PART 2: GROUND MOUNTED TRANSFORMERS - NOT CLOSE-COUPLED - PART 3: GROUND MOUNTED TRANSFORMERS - CLOSE-COUPLED - PART 4: POLE MOUNTED TRANSFORMERS |
| BS 88-3(2010) : 2010 COR 2014 | LOW-VOLTAGE FUSES - PART 3: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY UNSKILLED PERSONS (FUSES MAINLY FOR HOUSEHOLD AND SIMILAR APPLICATIONS) - EXAMPLES OF STANDARDIZED SYSTEMS OF FUSES A TO F |
| ENA ER G74 : ISSUE 1 1992 | PROCEDURE TO MEET THE REQUIREMENTS OF IEC 909 FOR THE CALCULATION OF SHORT-CIRCUIT CURRENTS IN THREE-PHASE AC POWER SYSTEMS |
| BS EN 60909-0:2016 | Short-circuit currents in three-phase a.c. systems Calculation of currents |
| BS HD 60269-3 : 2010 | LOW-VOLTAGE FUSES - PART 3: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY UNSKILLED PERSONS (FUSES MAINLY FOR HOUSEHOLD AND SIMILAR APPLICATIONS) - EXAMPLES OF STANDARDIZED SYSTEMS OF FUSES A TO F |
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