AS NZS 60670.1:2021 Boxes and enclosures for electrical accessories for household and similar fixed electrical installations Part 1: General requirements (IEC 60670-1:2015 (ED.2.0) MOD).
This part of IEC 60670 applies to boxes, enclosures and parts of enclosures (hereafter called “boxes” and “enclosures”) for electrical accessories with a rated voltage not exceeding 1 000 V a.c. and 1 500 V d.c. intended for household or similar fixed electrical installations, either indoors or outdoors.
Boxes and enclosures complying with this standard are suitable for use at ambient temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of —5 °C.
During the installation the temperature may be outside the above temperature range according to the classification of the boxes and the enclosures.
This International Standard is intended to apply to boxes and enclosures for electrical accessories within the scope of IEC technical committee 23.
This standard may be used as a reference document for other IEC technical committees and subcommittees.
A box or an enclosure which is an integral part of an electrical accessory and provides protection for that accessory against external influences (for example mechanical impact, ingress of solid objects or water, etc.) is covered by the relevant standard for such an accessory.
This standard does not apply to
— ceiling roses;
— luminaire supporting couplers;
— boxes, enclosures and parts of enclosures specifically designed to be used for cable trunking and ducting systems complying with IEC 61084 and which are not intended to be installed outside of these systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60068275:19971, Environmental testing — Part 2-75: Tests — Test Eh: Hammer tests
IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices of solid insulating materials
IEC 6042 3:2007, Conduit systems for cable management — Outside diameters of conduits for electrical installations and threads for conduits and fittings
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMDI:1999/AMD2:2013, Degrees of protection provided by enclosures (IP
IEC 60695211:20002, Fire hazard testing — Part 2-11: Glowing/hot-wire based test methods
— Glow-wire flammability test method for end-products
IEC 60695-1 0-2:2003 3, Fire hazard testing — Part 10-2: Abnormal heat — Ball pressure test
IEC 60981:2004, Extra-heavy duty rigid steel conduits
IEC 61032:1997, Protection of persons and equipment by enclosures — Probes for verification
IEC 61140:2001, Protection against electric shock — Common aspects for installation and equipment
IEC 61140:2001/AMD1:2004, Protection against electric shock — Common aspects for installation and equipment
ISO/IEC Guide 51, Safety aspects — Guidelines for their inclusion in standards
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
combination of parts, such as boxes, covers, cover-plates, lids, box extensions, accessories, etc., providing after assembly and installation as in normal use, an appropriate protection against external influences, and a defined protection against contact with enclosed live parts from any accessible direction
Note 1 to entry: See Annex A.
part of an enclosure provided with means for fixing a cover, cover-plate, accessory, etc., and intended to receive accessories (such as socket-outlets, switches, etc.).AS NZS 60670.1 pdf download.