Creepage And Clearance Standards

1.1 These requirements cover an alternate approach to specifying through air and over surface spacings for electrical equipment through the use of the principles of insulation coordination. 1.2 The complete principles of insulation coordination involve the consideration of the combination of...

States a principle of insulation co-ordination based upon a series of standardized impulse withstand voltage levels related to the dimensioning of clearances and creepage distances. Intended as a guide for technical bodies.

This part of IEC 60664 specifies the dimensioning of clearances and creepage distances for spacings equal to or less than 2 mm for printed wiring board and equivalent constructions, where the clearance and the creepage distance are identical...

This European Standard deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and...

This part of IEC 62497 deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and...

Specifies terminations for rotating machines rated up to 15 kV a.c. r.m.s. Types of terminations. Creepage and clearance distances, current ratings of connections, definitions.

Specifies terminations for rotating machines rated up to 15 kV a.c. r.m.s. types of terminations, creepage and clearance distances, current ratings of connections, definitions.

This part EN 50124 deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both within and between...

This standard defines reference distances between terminals of the device and the external package at specific voltages.

Specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria.

This Standard uses principles of insulation coordination in specifying through-air and over-surface spacing requirements for electrical equipment used in accordance with the Rules of the Canadian Electrical Code, Part I. The complete principles of insulation coordination involve...

IEC TR 63139:2018(E) is related to the insulation coordination in TC 34 standards and provides explanations on mathematical addition of working voltages, insulation between circuits, use of protective extra low voltage (PELV) and insulation between LV supply and control line...

This Notice Board applies to all staff defining or verifying Clearance Points on Network Rail managed infrastructure. Purpose This Notice Board clarifies current requirements for provision on Clearance Points on Network Rail. Issue 2 of this Notice Board contains amended guidance on...

Hand operated and automatic types used with a.c. and d.c. motors of rated voltages up to 11 kV a.c. and 650 V d.c. Resistors, auto-transformers and similar associated equipment. Ratings, sizes, design and construction, temperature rise limits, type and...

This part of IEC 60664 deals with insulation coordination for equipment having a rated voltage up to AC 1 000 V or DC 1 500 V connected to low-voltage supply systems. This document applies to frequencies up to 30 kHz. NOTE 1 Requirements for insulation coordination for equipment within low-voltage...

Specifies, by reference to BS 5992:Part 3:1980, requirements for voltage and insulation resistance tests and the general requirements for the insulation of electrical protection relays. Also gives guidance on the selection of degrees of severity for clearance and...