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PD IEC TS 62993:2017 Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC >
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PD IEC TS 62993:2017 Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC, 2018
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- CONTENTS
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Basic information for the determination of insulation requirements [Go to Page]
- Figure 1 – Recurring peak voltage [Go to Page]
- Table 1 – Rated impulse voltages according to overvoltage categories [Go to Page]
- 5 Dimensioning rules [Go to Page]
- Table 2 – Clearances to withstand transient overvoltages
- Table 3 – Dimensioning of clearances to working voltages, temporary overvoltages or recurring peak voltages [Go to Page]
- Table 4 – Altitude correction factors [Go to Page]
- Figure 2 – Determination of the width (W) and height (H) of a rib [Go to Page]
- Table 5 – Creepage distances to avoid failure due to tracking [Go to Page]
- 6 Tests and measurements [Go to Page]
- Table 6 – Test voltages based on clearances and a test site altitude of 2 000 m above sea level [Go to Page]
- Table 7 – Correction factors according to test site altitudefor test voltages for clearances
- Table 8 – Severities for conditioning of solid insulation [Go to Page]
- Bibliography [Go to Page]