• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS 5622-2:1979

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Guide for insulation co-ordination Application guide
Available format(s)

Hardcopy , PDF

Superseded date

15-04-1997

Language(s)

English

Published date

31-01-1979

National foreword
Cooperating organizations
Section one - Scope and reference to existing IEC
publications
1. Scope
2. Reference to existing IEC publications
Section two - Voltage stresses in service
3. General
4. Power-frequency voltages
5. Temporary overvoltages
6. Switching and lightning overvoltages
7. Determination of expected overvoltage levels
Section three - Insulation withstand
8. General
9. Insulation behaviour at power-frequency voltages
     and temporary overvoltages
10. Probability of disruptive discharge of insulation
     under impulse voltages
11. Apparatus with windings
Section four - Protective devices
12. General
13. Non-linear resistor-type surge arresters
14. Expulsion-type surge arresters
15. Spark gaps
16. Application of different protective devices
Section five - Coordination between stresses and
withstand considerations common to ranges A, B and C
17. Insulation design to power-frequency operating
     voltage and temporary overvoltages. Problems of
     pollution and ageing
18. Pollution
19. Ageing
Section six - Coordination between stresses and
withstand in voltage range A
20. Selection of the rated power-frequency withstand
     voltage
21. Selection of the rated lightning-impulse withstand
     voltage
Section seven - Coordination between stresses and
withstand in voltage range B
22. Selection of the rated power-frequency withstand
     voltage and the rated lightning-impulse withstand
     voltage
Section eight - Coordination between stresses and
withstand in voltage range C
23. Insulation design with respect to power-frequency
     voltage and temporary overvoltages
24. Insulation design with respect to switching and
     lightning overvoltages
25. Block-diagram of the insulation design and
     coordination of an electrical installation
Appendix A - Surge transference through transformers
Appendix B - Validity of the tests in Clauses 52, 53
             and 54 of IEC Publications 71-1
Appendix C - Statistical evaluation of the protective
             effect of spark gaps
Appendix D - Examples of application
Appendix E - Clearances in air between live conductive
             parts and earthed structures to secure a
             specified impulse withstand voltage for
             dry conditions
Tables
Figures

Guidance for national and economical solutions rather than strict rules for insulation coordination. Deals with the selection of the electric strength of equipment, of surge arresters or protective spark gaps, and considers the extent to which control of switching overvoltages may be useful.

Committee
PEL/99
DevelopmentNote
AMD 7533 implements HD 540.2 S1
DocumentType
Standard
Pages
86
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
IEC 60071-2:1976 Identical

BS 7729:1994 Specification for instrument transformers. Three-phase voltage transformers for voltage levels having <i>U</i><sub>m</sub> up to 52 kV
BS 7354:1990 Code of practice for design of high-voltage open-terminal stations
BS 5622-1:1979 Guide for insulation co-ordination Terms, definitions, principles and rules
BS 6581:1985 Specification for common requirements for high-voltage switchgear and controlgear standards
BS EN 60383-2:1995 Insulators for overhead lines with a nominal voltage above 1000 V Insulator strings and insulator sets for a.c. systems. Definitions, test methods and acceptance criteria
BS 7264-1:1990 Shunt capacitors for a.c. power systems having a rated voltage above 1000 V Specification for performance, testing and use
EN 60383-2:1995 Insulators for overhead lines with a nominal voltage above 1 kV - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
BS EN 61330:1996 High-voltage/low-voltage prefabricated substations
BS 159:1992 Specification for high-voltage busbars and busbar connections
BS 7578:1992 Coupling capacitors and capacitor dividers
BS 5311:1988 Specification for high-voltage alternating-current circuit-breakers

IEC 60060-2:2010 High-voltage test techniques - Part 2: Measuring systems
IEC 60099-2:1962 Lightning arresters - Part 2: Expulsion-type lightning arresters
BS 5622-1:1979 Guide for insulation co-ordination Terms, definitions, principles and rules
IEC 60282-1:2009+AMD1:2014 CSV High-voltage fuses - Part 1: Current-limiting fuses
BS 2692-1(1986) : 1986 AMD 8047 FUSES FOR VOLTAGES EXCEEDING 1000 V a.c. - SPECIFICATION FOR CURRENT LIMITING FUSES
IEC 60099-1:1991+AMD1:1999 CSV Surge arresters - Part 1: Non-linear resistor type gapped surge arresters for a.c. systems
IEC 60060-3:1976 High-voltage test techniques - Part 3: Measuring devices
IEC 60060-4:1977 High-voltage test techniques - Part 4: Application guide for measuring devices
IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
IEC 60099-1A:1965 First supplementReplaced by IEC 99-5
IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules

View more information
£280.00
Excluding VAT

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.