BS 3456-101:1987

Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 General requirements
4 General conditions for the tests
5 Rating
6 Classification
7 Marking
8 Protection against electric shock
9 Starting of motor-operated appliances
10 Input and current
11 Heating
12 Operation under overload conditions of appliances
    with heating elements
13 Electrical insulation and leakage current at
    operating temperature
14 Radio and television interference suppression
15 Moisture resistance
16 Insulation resistance and electric strength
17 Overload protection
18 Endurance
19 Abnormal operation
20 Stability and mechanical hazards
21 Mechanical strength
22 Construction
23 Internal wiring
24 Components
25 Supply connection and external flexible cables and
    cords
26 Terminals for external conductors
27 Provision for earthing
28 Screws and connections
29 Creepage distances, clearances and distances through
    insulation
30 Resistance to heat, fire and tracking
31 Resistance to rusting
32 Radiation, toxicity and similar hazards
Appendices
A Electronic circuits
B Measurement of creepage distances and clearances
C Classification of controls in accordance with
    BS 3955 as type 1 or type 2
D Thermal controls and overload releases
E Switches for appliances
Tables
1 Diameter of silver wire for fuse test
2 Permissible variations in rated input
3 Permissible temperature rises
4 Insulation resistance
5 Test voltages
6 Endurance test operating time
7 Limiting temperatures of windings under abnormal
    operation
8 Permissible temperature rises under abnormal
    operation
9 Test force for screwed glands
10 Size of cable and conduit entries
11 Size of flexible cord
12 Test figures for flexible cord pull and torque
13 No requirement
14 Conductor cross-sectional areas for which terminals
    are to be suitable
15 Dimensions of pillar-type terminals
16 Dimensions of screw-type terminals
17 Dimensions of stud-type terminals
18 Axial pull on conductors
19 Torque values for screws and nuts
20 Creepage distances and clearances
Figures
1 Standard test finger
2 Test pin
3 Test probe
4 Diagram for leakage current measurement at operating
    temperature for single-phase connection of class II
    appliances
5 Diagram for leakage current measurement at operating
    temperature for single-phase connection of
    appliances other than those of class II
6 Diagram for leakage current measurement at operating
    temperature for three-phase connection of class II
    appliances
7 Diagram for leakage current measurement at operating
    temperature for three-phase connection of appliances
    other than those of class II
8 Diagram for electric strength test at operating
    temperature
9 Vertical rain apparatus
10 Splash apparatus
11 Spray apparatus
12 Impact test apparatus
13 Device for testing shoulders in conduit entries
14 Ball-pressure apparatus
15 Hot mandrel apparatus
16 Arrangement and dimensions of electrodes for
    tracking test
17 Apparatus for flexing test
18 Schematic representation of cord anchorages
A1 Examples of constructions of appliances
A2 Example of electronic circuit with low power points