BS EN 61984-2001 pdf download.Connectors – Safety requirements and tests.
This requirement does not apply to a connector in which contact identification is ensured in the end-use product. Relevant information shall be given in the technical documentation of the manufacturer.
Marking of protective earthing contacts shall apply the symbols or PE.
Marking shall not be applied to screws or other removable parts.
Symbols are given in IEC 604 17-2.
The symbol is reserved for end-use-equipment. The protection level of components is dependent upon the equipment in which they are used. Therefore components shall not be
marked with the symbol . A connector without earth contact may be designated as to read “Connector for class II equipment”, if the connector itself meets the requirements of double and/or reinforced insulation.
6.3 ProvisIon against Incorrect mating (non-Intermateable)
A multipole connector shall be so designed that contact between protective earthing contacts and live contacts is not possible by engagement.
Compliance is checked by using a polarisation test.
6.4 Protection against electric shock
6.4.1 A connector shall be so designed that, after mounting, its live parts are not accessible
by the IEC test finger in accordance with clause 5 of IEC 60529 using a test force of 20 N. This requirement does not apply to a connector in which protection against electric shock is ensured by mounting provisions or by using safety extra-low voltage (SELV. according to IEC 60364-4-41) In the end-use product.
6.4.2 A connector intended for use inside an enclosure which ensures protection against electric shock shall not have its own protection against electric shock. But if protection is claimed by the manufacturer, the following requirements apply.
6.4.2.1 For a connector with protection against electric shock according to characteristic ci) of 5.4, protective provisions shall be tested by using the access probe — 50 mm sphere” — according to clause 5 of IEC 60529 with a test force of 20 N without consideration of clearances and creepage distances.
6.4.2.2 For connectors with protection against electric shock according to characteristic c2) and d) of 5.4. protection against electric shock shall be proved by using the test finger according to clause 5 of IEC 60529 with a test force of 20 N without consideration of clearances and creepage distances.
6.4.3 For a CBC, protection against electric shock shall be ensured also during insertion and withdrawal. This shall be proved by the IEC test finger in accordance with clause 5 of IEC 60529 with a test force of 20 N with consideration of clearances and creepage distances.
6.5 ProvisIons for earthing
6.5.1 For a CBC with a protective earthing contact according to characteristic a) of 5.4, the earthing contact shall be a “first make, last break” contact.
6.5.2 A connector for class II equipment according to characteristic f) of 5.4 may be equipped with protective earthing contacts, provided that these contacts are considered as live parts and are equally protected against electric shock by double or reinforced insulation.
6.5.3 Accessible metal parts of a connector with a earthing contact which may become live in the event of an insulation fault shall be reliably connected to the earthing contact.
In no case shall the resistance of this connection exceed 0.1
NOTE If accessible metal parts are screened from live parts by metal parts which are connected to an earthing terminal or earthing contact, or If they are separated from live parts by double or reinforced Insulation, they are not. for the purpose of this requirement, regarded as likely to become live in the event of an insulation fault.
Compliance is checked by the test of 7.3.12.
6.5.4 ConnectIon of the protective conductor
6.5.4.1 The protective conductor terminal shall be able to accept a conductor with a minimum cross-section as specified in table 1, column 2.
6.6.3 Electrical connections shall be so designed that the contact pressure is not transmitted through insulating material other than ceramic, pure mica or other material with characteristics not less suitable, unless there is sufficient resiliency in the metallic parts to compensate for any shrinkage or yielding of the insulating material (see 25.3 of IEC 60309-1 or clause 7 of IEC 60999-1 or IEC 60999-2).
6.7 Interlock
A connector with an interlock shall be so designed that it cannot be engaged or disengaged as long as the contacts are live.
NOTE It pilot contacts (last make. hrst oreak contacts) are used for the electrical interlock, these are allowed to be live when disengaged if the pilot contacts are protected against electric shock
6.8 Resistance to ageing
Parts which, due to ageing, might impair safety shall be so resistant that the specified characteristics such as dielectric strength, contact resistance or degree of protection are maintained.
6.9 General design
6.9.1 Multipoe connectors shall be so polarised that improper connection of mating parts is
prevented.
This requirement does not apply to connectors (for example two-part connectors for printed boards and rack-and-panel connectors) where mismating is prevented by mounting provisions in the end-use or additional accessories, if necessary and available.
6.9.2 Fixing means, actuated in the mounting and in the connection of conductors, shall not be used to fix live parts, where as a result of their change of position their efficiency might be impaired and creepage distances and clearances be reduced.
6.9.3 Connectors shall be so designed that connection of conductors of the type and cross- sectional areas as specified by the DS or the manufacturer shall be possible. Besides the termination of the conductor, care shall be taken that no damage of the insulation is possible, e.g. by avoiding of sharp edges.
6.9.4 Non-rewlrable connectors shall be so designed that
— the flexible cable cannot be separated from the connector without making it permanently useless;
NOTE A connector becomes useless for further use when for the re-mounting, other parts than the original
ones are necessary.BS EN 61984-2001 pdf download.
BS EN 61984-2001 pdf download
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