BS 1363-1:2023 BSl Standards Publication 13 A plugs, socket-outlets, adaptors and connection units Part 1: Rewirable and non-rewirable 13 A fused plugs - Specification bsi. BS 1363-1:2023 BRITISH STANDARD @ THE BRITISH STANDARDS INSTITUTION 2023 - ALL RIGHTS RESERVED BRITISH STANDARD BS 1363-1:2023 Contents Page Foreword IV Scope 1 1 Normative references 1 2 Terms and definitions 3 3 4 Conditions of use 6 General 7 5 General conditions for type testing 7 6 Table 1 - Schedule of tests 8 Figure 5 - Gauge for plug pins 9 Classification and rating 10 7 7.1 10 Classification Rating 7.2 10 Table 2 - Rated current and maximum fuse rating in normal use, and load for flexing and cable grip tests related to size offlexible cable 10 Marking and labelling 11 8 9 Clearances, creepage distances and solid insulation 12 Clearances 9.1 12 Table 3 - Minimum clearances for basic insulation 13 9.2 Creepage distances 14 Table 4 - Minimum creepage distances (mm) for basic insulation 15 9.3 Solid insulation 15 Table 5 - Withstand voltages for insulation types 15 9.4 Requirements for printed wiring boards and equivalent construction 15 10 Accessibility of live parts 16 Figure 2a) - Apparatus for mechanical strength test on resilient covers 17 Figure 2b) - Hardwood block for Figure 2a) 18 Provision for earthing 11 18 Table 6 - Torque values for screws and nuts 19 12 Terminals and terminations 19 Construction of plugs 22 13 Figure 4a) - Dimensions and disposition of pins 23 Figure 4b) - ISOD dimensions 25 Figure 6 - Apparatus for testing plug cover fixing screws 28 Figure 1 - Test pin 29 Figure 32a) - Apparatus for tests on plug pins: A plug pin under test 30 Figure 32b) - Apparatus for tests on plug pins: Details of anvils 31 Figure 33 - Apparatus for torsion test on pins 33 Figure 7- Mounting plate 34 Figure 8 - Plug pin deflection test apparatus for resilient plugs 35 Figure 9 - Apparatus for abrasion test on insulating sleeves of plug pins 37 Figure 10 - Apparatus for pressure test at high temperature 38 Table 7 - Actuator test force 39 14 (Not used) 40 15 Resistance to ageing and to humidity 40 15.1 Resistance to ageing 40 15.2 Resistance to humidity 40 16 Insulation resistance and electric strength 41 17 Temperature rise 42 BS 1363-1:2023 BRITISH STANDARD Figure 17a) - Test apparatus for temperature rise test 43 Figure 17b) - Dummy front plate for temperature rise 45 Table 8 - Permitted temperature rises 47 Breaking capacity of switches incorporated in fused plugs 18 47 19 Normal operation of switches 47 Connection of flexible cables and cable anchorage 20 47 Figure 18 - Apparatus for flexing test 48 Table 9 - Connection offlexible cables 51 Mechanical strength 21 51 Figure 19 - Solid link for test on fuse clips 51 Figure 20 - Tumbling barrel 52 22 Screws, current-carrying parts and connections 53 23 Resistance to heat 54 Figure 23 - Apparatus for pressure test 55 24 Resistance to abnormal heat and fire 56 24.1 General 56 24.2 Glow-wire test 56 Table 10 - Application of glow-wire test 57 25 Resistance to excessive residual stresses and to rusting 57 26 Electrical and thermal stress of clamp type (screwless) terminals 58 27 Overload tests 58 28 Cyclic loading test 59 28.1 Requirement 59 Testing 28.2 59 60 Annex A (normative) Requirements for incorporated electronic components (informative) Recommendations for products that incorporate BS 1363-1 plug pins 62 Annex B Table B.1 - List of clauses 62 Annex C 63 (normative) Pollution degree Annex D (normative) Relation between rated impulse withstand voltage, rated voltage and Overvoltage Category 64 Table D.1 - Rated impulse withstand voltage for plugs energized directly from the low 64 voltage mains (normative) Impulse voltage test 64 Annex E Table E.1 - Test voltages for verifying clearances at sea level 65 65 Annex F (normative) Measurement of clearance and creepage distances Table F1 - Minimum values of width X 65 Figure F1 - Example 1 66 Figure F2 — Example 2 66 Figure F3 — Example