IEC GUIDE 111 : 2.0

ELECTRICAL HIGH-VOLTAGE EQUIPMENT IN HIGH-VOLTAGE SUBSTATIONS - COMMON RECOMMENDATIONS FOR PRODUCT STANDARDS

International Electrotechnical Committee

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FOREWORD
INTRODUCTION
1 Scope
2 Reference documents
3 Guidance for the "Normative references" clause in product
   standards
4 Guidance for the "Definitions" clause in product standards
5 Environmental conditions
   5.1 General
   5.2 Normal environmental conditions
   5.3 Special environmental conditions
6 Ratings
   6.1 General
   6.2 Highest voltage for equipment
   6.3 Rated insulation levels
   6.4 Rated frequency
   6.5 Rated current
   6.6 Rated short-time withstand current
   6.7 Rated peak withstand current
   6.8 Rated duration of short circuit
   6.9 Rated supply voltage of auxiliary and control circuits
   6.10 Rated supply frequency of auxiliary and control
        circuits
7 Design and construction
   7.1 Requirements for liquids and gases in equipment
   7.2 Earthing of equipment
   7.3 Low-voltage part of equipment
   7.4 Marking
   7.5 Degrees of protection by enclosures
   7.6 Creepage distances
   7.7 Fire hazard
   7.8 Noise level
   7.9 Electromagnetic compatibility (EMC)
   7.10 Mechanical stresses on terminals
   7.11 Interfaces
8 Tests
   8.1 General
   8.2 Type tests
   8.3 Routine tests
   8.4 Special tests
   8.5 Sample tests
   8.6 Commissioning tests
9 Rules for transport, storage, erection, operation and
   maintenance
10 Safety
   10.1 General
   10.2 Electrical aspects
   10.3 Mechanical aspects
   10.4 Thermal aspects
   10.5 Operation aspects
11 Effects of product standards on the natural environment
12 Guide for the selection of equipment according to use
13 Information to be given with enquiries, tenders and orders
Annex A Identification of test specimens

Abstract

Gives guidance for the harmonization of product and system standards within substations where the highest voltage for equipment is higher than 1 kV. Addresses conventional a.c. equipment which is found in high-voltage (HV) substations in most cases. Contains recommendations for common specifications for all HV substation product standards, each of which is augmented by the technical background specific to each TC, which naturally retains freedom in its technical choices.