Insulation Coordination for Equipment within Low-Voltage Supply Systems - Part 1: Principles, Requirements and Tests
Also Known As:
IEC 60664-1:2020 is a standard that focuses on insulation coordination for equipment operating within low-voltage supply systems. This standard specifically applies to equipment with a rated voltage of up to AC 1,000 V or DC 1,500 V and is applicable for frequencies up to 30 kHz. It provides principles, requirements, and tests related to insulation coordination to ensure the proper functioning and safety of the equipment.
The standard covers various aspects, including determining clearances, creepage distances, and criteria for solid insulation. It also outlines methods of electrical testing for insulation coordination purposes. However, it should be noted that the defined minimum clearances in the standard are not applicable in the presence of ionized gases, and specific requirements for such situations should be determined by the relevant technical committee.
The latest edition of this standard, released in 2020, has undergone several significant technical changes compared to the previous edition. These changes include updates to the scope and clauses, the addition of 1,500 V DC into tables, a revised structure for clauses 4 and 5, the inclusion of flowcharts for clearances and creepage distances in Annex G and Annex H respectively, and an update to distances for altitude correction in Table F.10.
| Edition | 3.0 |
| ICS Codes | 29.080.30 - Insulation systems |
| Language(s) | English + French |
| File Size | 9.1 MB |
