bsen60670-1-20xxboxesandenclosuresforelectricalaccessoriesforhouseholdandsimilar

bsen60670-1-20xxboxesandenclosuresforelectricalaccessoriesforhouseholdandsimilar内容摘要：

for impact test at low temperature (see ) ...................................... 37 Figure 9 – Application points for blows for part A (see )................................................ . 38 Figure 10 – Sequence of blows for parts A, B, C, D, E, F and G (see ) .......................... 39 Figure 11 – Apparatus for testing the cable anchorage (see ) ........................................ 40 Figure 12 – Arrangement for test on covers or coverplates (see ) ........................... 41 EN 606701:2020 – 4 – Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 08:32:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Figure 13 – Gauge (thickness about 2 mm) for the verification of the outline of lids, covers or coverplates (see ) .................................................................................. 41 Figure 14 – Examples of application of the gauge of Figure 13 on covers fixed without screws on a mounting surface or supporting surface (see )...................................... 42 Figure 15 – Examples of application of the gauge of Figure 13 (see ) ...................... 43 Figure 16 – Gauge for verification of grooves, holes and reverse tapers (see )......... 44 Figure 17 – Sketch showing the direction of application of the gauge of Figure 16 (see ) ..................................................................................................................... 44 Figure 18 – Verification of fixing means for boxes and enclosures classified according to (see )................................................................................................. .........45 Figure 19 – Void .............................................................................................................. ... 45 Figure 20 – Void ........................................................................................... ...................... 45 Figure 21 – Diagrammatic representation of the glowwire test (see Clause 18) ................... 46 Figure – Examples of enclosures and parts of thereof .................................................... 47 Figure Z1 – Example of mounting block for boxes to be embedded in masonry (flush type and semiflush type) ............................................................................................ . 48 Figure Z2 – Example of the fixing of the auxiliary device mounted on a specimen................. 49 Figure Z3 – Example of test apparatus for the test according to .................................. 50 Table 1 – Classification of boxes and enclosures ...................................................................9 Table 2 – Forces to be applied to covers, coverplates or actuating members whose fixing is not dependent on screws........................................................................................ 13 Table 3 – Forces and torques to be applied to cable anchorages ......................................... 16 Table 4 – Tightening torques for the verification of the mechanical strength of screws .......... 18 Table 5 – Torque test values for cable glands ...................................................................... 20 Table 6 – Test voltage for electric strength test ................................................................... 26 Table 7 – Determination of parts A, B, C, D E, F and G........................................................ 28 Table 8 – Height of fall for impact test ................................................................................. 29 EN 606701:2020 – 5 – Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 08:32:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BOXES AND ENCLOSURES FOR ELECTRICAL ACCESSORIES FOR HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS – Part 1: General requirements 1 Scope 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 . and 1 500 V . intended for household or similar fixed electrical installations, either indoors or outdoors. NOTE Requirements for particular types of boxes and enclosures are given in the relevant parts 2 of IEC 60670. Boxes and enclosures plying with this standard are suitable for use at ambient tem perature not normally exceeding 25 176。 C but occasionally reaching 35 176。 C. This International Standard is intended to apply to boxes and enclosures for electrical accessories within the scope of IEC technical mittee 23. NOTE This standard may also be used as a reference document for other IEC technical mittees and submittees. 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 plying with IEC 61084 and which are not intended to be installed outside of these systems. 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 60068275:1997。