IEC 61811-10 pdf download

IEC 61811-10 pdf download.Electromechanical elementary relays of assessed quality
1 General
1.1 Scope
This part of IEC 61811 is a sectional specification applicable to electromechanical elementary (non-specified time all-or-nothing) relays of assessed quality for industrial application. NOTE Electromechanical all-or-nothing telecom relays of assessed quality are covered by IEC 61811-50. It is based on the basic relay standard IEC 61810-1 as well as on the generic specification IEC 61811-1 and selects from IEC 61810-7 the appropriate test and measurement procedures to be used in detail specifications derived from this specification. Moreover it contains a basic test schedule to be used in the preparation of such specifications. Detailed test schedules are given in the blank detail specifications supplementary to this sectional specification. For the purpose of this standard, only fundamental tests have been compiled. Depending on the field of application, further tests should be selected as appropriate, preferably in accordance with the test and measurement procedures of IEC 61810-7.
1.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60062:1992, Marking codes for resistors and capacitors IEC 60255-23:1994, Electrical relays – Part 23: Contact performance IEC 60410:1973, Sampling plans and procedures for inspection by attributes IEC 61709:1996, Electronic components – Reliability – Reference conditions for failure rates and stress models for conversion IEC 61810-1:1998, Electromechanical non-specified time all-or-nothing relays – Part 1: General requirements IEC 61810-5:1998, Electromechanical non-specified time all-or-nothing relays – Part 5: Insulation coordination IEC 61810-7:1997, Electromechanical all-or-nothing relays – Part 7: Test and measurement procedures
2 Quality assessment procedures
2.1 Primary stage of manufacture The primary stage of manufacture is the first process subsequent to the manufacture of finished parts and subassemblies of the relay. NOTE 1 A subassembly is understood to mean here the permanent assembly of two or more piece parts. NOTE 2 Important manufacturing steps are as follows: a) fabrication, heat treatment and plating of the component parts of the relay; b) coil winding; c) assembling of the electrical and electromechanical parts; d) adjustment of the relay contacts, if applicable; e) high-temperature drying, gas backfilling and sealing of the relay, if applicable; f) final measurements and periodic inspection of test groups A to D. 2.2 Structurally similar relays Relays are considered structurally similar if having no differences in design other than in: a) coil wire diameter, number of windings and the coil transient suppression device; b) types, numbers and material of contacts; c) rated coil and/or contact voltage(s); d) mounting and terminal variants within the limits prescribed in the detail specification.2.3 Subcontracting Subcontracting the primary stage of manufacture (see 2.1) and/or subsequent stages to an unapproved manufacturer is forbidden. Subcontracting is permitted for any stages preceding the primary stage of manufacture and shall be in accordance with the requirements of (normative) Annex B to Clause 2 of IEC QC 001002-3. 2.4 Qualification approval procedures The manufacturer shall comply with the general requirements of the basic rules governing qualification approval defined in Clause 3 of IEC QC 001002-3 and the provisions given in 2.2 of IEC 61811-1. The requirements contained in 4.2 of IEC 61810-1 shall be met. Qualification approval tests shall include all the tests prescribed in the detail specification, and shall be performed by a schedule specifically prescribed in the detail specification. Sampling shall be carried out in accordance with the sampling plans and procedures specified in IEC 60410. The number of specimens for each subgroup is specified in the blank detail specification. As a general rule, a minimum of five specimens are required for each group of tests. The qualification tests schedule may specify destructive and cumulative non-destructive tests. 2.5 Quality conformance inspection requirements 2.5.1 General requirements Quality conformance inspection shall be carried out in accordance with the requirements of Clause 3 of IEC QC 001002-3 and 2.3 of IEC 61811-1.