ENA ER P28 : ISSUE 1 1989

Superseded

View Superseded by

PLANNING LIMITS FOR VOLTAGE FLUCTUATIONS CAUSED BY INDUSTRIAL, COMMERCIAL AND DOMESTIC EQUIPMENT IN THE UNITED KINGDOM

Superseded date

06-02-2020

Published date

12-01-2013

Publisher

Energy Networks Association (UK)

1 SCOPE
2 DEFINITIONS
3 FORM OF RECOMMENDATION
4 INTRODUCTION
5 STAGE 1 ASSESSMENT AND LIMITS
6 STAGE 2 ASSESSMENT AND LIMITS
7 STAGE 3 ASSESSMENT AND LIMITS
8 SITE MEASUREMENTS
9 APPLICATION
APPENDIX A - FLICKER SEVERITY MEASUREMENT AND ASSESSMENT
APPENDIX B - EXAMPLES OF STAGE 2 ASSESSMENTS
APPENDIX C - EXAMPLES OF THE CALCULATIONS
REQUIRED TO DETERMINE THE VOLTAGE
FLUCTUATIONS CAUSED BY LOAD WITH P.C.C AT LV
APPENDIX D - SYSTEM DATA IN THE FORM OF OHMIC
VALUES TO AN LV BASE
APPENDIX E - REFERENCES
APPENDIX F - DECISION TREE FOR ACCEPTING FLUCTUATING LOADS

Describes all devices and equipment not specifically covered in BS 5406 (1988) - 'Disturbances in supply systems caused by household appliances and similar equipment'. ETR 117 (in preparation), offers further information and background to this Engineering Recommendation.

DevelopmentNote	Supersedes ENA ER P7-2, ENA ER P8, ENA ER P9 and ENA ER P13-1. (05/2002)
DocumentType	Standard
PublisherName	Energy Networks Association (UK)
Status	Superseded
SupersededBy	ENA ER P28 Issue 2 : 2019
Supersedes	ENA ER P9 : 1963 AMD 1 1975 ENA ER P8 : 1965 ENA ER P13-1 : 1979 AMD 1 1982 ENA ER P7-2 : 1970 AMD 1 1975

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ENA ER P29 : ISSUE 1 1990	PLANNING LIMITS FOR VOLTAGE UNBALANCE IN THE UK FOR 132KV AND BELOW
ENA ER G5-4-1 : ISSUE 4 AMD 1 2005	PLANNING LEVELS FOR HARMONIC VOLTAGE DISTORTION AND THE CONNECTION OF NON-LINEAR EQUIPMENT TO TRANSMISSION SYSTEMS AND DISTRIBUTION NETWORKS IN THE UNITED KINGDOM
ENA ER G100 : ISSUE 1 AMD 1 2017	TECHNICAL GUIDANCE FOR CUSTOMER EXPORT LIMITING SCHEMES
ENA ER G83/2 : ISSUE 2 2012	RECOMMENDATIONS FOR THE CONNECTION OF TYPE TESTED SMALL-SCALE EMBEDDED GENERATORS (UP TO 16A PER PHASE) IN PARALLEL WITH LOW-VOLTAGE DISTRIBUTION SYSTEMS

ESI 09-9 : ISSUE 5	POLYMERIC INSULATED, COMBINED NEUTRAL EARTH (CNE) CABLES WITH SOLID ALUMINIUM PHASE CONDUCTORS AND CONCENTRIC ALUMINIUM WIRE WAVEFORM NEUTRAL EARTH CONDUCTOR
IEC TR 60725:2012	Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase
BEB L6 : ISSUE 1 AMD 1 1969	SPECIFICATION FOR 400 KV STEEL TOWER TRANSMISSION LINES WITH 4 X 0.4 SQ.IN. CU EQUIV.SCA CONDUCTOR PER PHASE
ESI 09-8 : ISSUE 4	IMPREGNATED PAPER INSULATED 600/1000 VOLT CABLE WITH THREE SOLID ALUMINIUM PHASE CONDUCTORS AND ALUMINIUM SHEATH/NEUTRAL CONDUCTOR (CONSAC)
ENA ER P17 PT2 : ISSUE 1 1976	CURRENT RATING GUIDE FOR DISTRIBUTION CABLES - PART 2: SOLID TYPE CABLES FOR 33 KV
ESI 43-20 : ISSUE 1	11kV AND 33kV SINGLE CIRCUIT OVERHEAD LINES OF HEAVY CONSTRUCTION ON WOOD POLES
CEI EN 60868 : 1997
ESI 43-10 : ISSUE 1	11kV SINGLE CIRCUIT OVERHEAD LINES OF LIGHT CONSTRUCTION ON WOOD POLES
ENA ER P16 : ISSUE 1 1975	EHV OR HV SUPPLIES TO INDUCTION FURNACES