CENELEC
Project
| Reference | EN 60664-5:2007 |
|---|---|
| Title | Insulation coordination for equipment within low-voltage systems - Part 5: Comprehensive method for determining clearances and creepage distances equal to or less than 2 mm |
| Project Number | 20720 |
| Abstract/Scope | 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 and are along the surface of solid insulation, such as the paths described in example 1, example 5 and example 11 of 4.2 of Part 1. The dimensioning is more precise than that provided by Part 1 (i.e EN 60664-1). This standard can only be used as an entirety. It is not permitted to select one or more clauses from this standard and to use them in place of the corresponding clauses of Part 1. When this standard is applied to the dimensioning of clearances and creepage distances, all clauses shall be used in place of the corresponding clauses given in Part 1. For clearances and creepage distances larger than 2 mm and for solid insulation in general, Part 1 applies. This standard is based on the following criteria for dimensioning: - minimum clearances independent of the micro-environment (see Table 2); - minimum creepage distances for pollution degrees 1, 2 and 3 to avoid failure due to tracking (see Table 4); - minimum creepage distances to avoid flashover across the insulating surface (see Table 5). A test method is specified for allocating unclassified insulating material to the relevant water adsorption group. Has the status of a basic safety publication in accordance with IEC Guide 104. |
| Status |
Published
|
Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2007-10-31 |
| Current Stage code deadline | 2008-07-01 |
| Deadline date for vote |
Legal
| Directive(s) | LVD (2006/95/EC) |
|---|---|
| Mandate(s) | |
| Order Voucher |
Details
| IEC Technical Body | IEC/TC 109 |
|---|---|
| Reference Document | IEC 60664-5:2007 (EQV) |
| ICS | 29.080.30 - Insulation systems |
| Keywords | Insulation coordination; LV; Clearance; Creepage distance |
| Note | |
| A-Deviation(s) | |
| Special National Condition(s) |
Environment
|
Clause
|
Categories - Aspects
|
Product Life Cycle
|
Information
|
|---|
History
Implementation Dates
| date of Ratification (DOR) (1) | 2007-10-01 |
|---|---|
| date of Availability (DAV) (2) | 2007-10-31 |
| date of Announcement (DOA) (3) | 2008-01-01 |
| date of Publication (DOP) (4) | 2008-07-01 |
| date of Withdrawal (DOW) (5) | 2010-10-01 |
Relations
| Supersedes | EN 60664-5:2003 |
|---|---|
| Superseded by | |
| Normative reference (6) |
HD 60364-5-51:2009
EN 60664-1:2007 EN 60721-3-3:1995 EN 60721-3-7:1995 EN 60721-3-9:1993 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
