BS 7462:1991

Committees responsible
Foreword
Specification
1 Scope
2 Definitions
3 General requirements
4 General conditions for the tests
5 Rating
6 Classification
7 Marking
8 Instructions
9 Protection against electric shock
10 Starting of motors
11 Input and current
12 Temperature limits
13 Leakage current and dielectric strength at operating
    temperature
14 Moisture resistance
15 Insulation resistance and electric strength
16 Overload protection
17 Motors
18 Stability and mechanical hazards
19 Mechanical strength
20 Construction
21 Internal wiring
22 Components
23 Supply connection and external flexible cables and
    cords
24 Terminals for external conductors
25 Provision for earthing
26 Electrical connections and screws
27 Creepage distances, clearances and distances through
    insulation
28 Resistance to heat, fire and tracking
29 Resistance to rusting
Appendices
A Electronic circuits
B Classification of controls as type 1 or type 2 in
    accordance with BS 3955
C Measurement of creepage distances and clearances
Tables
1 Maximum temperature rises
2 Test voltages for electric strength test
3 Limiting temperatures of windings
4 Maximum temperature rises during motor tests
5 Test force for screwed glands
6 Size of cable and conduit entries
7 Dimensions of pillar terminals
8 Dimensions of screw terminals
9 Dimensions of stud terminals
10 Torque values for screws and nuts
11 Creepage distances and clearances
12 Creepage distances and clearances for electronic
    circuits
Figures
1 Standard test finger
2 Special test finger
3 Test pin
4 Load for rotating accessory
5 Diagram for leakage current measurement at operating
    temperature for class II parts
6 Diagram for leakage current measurement at operating
    temperature
7 Diagram for electric strength test at operating
    temperature
8 Vertical rain apparatus
9 Spray apparatus
10 Splash apparatus
11 Device for testing shoulders in conduit entries
12 Schematic representation of cord anchorages
13 Typical examples of pillar, screw and stud terminals
14 Ball-pressure apparatus
15 Hot mandrel apparatus
16 Arrangement and dimensions of electrodes for
    tracking test

Requirements and associated test methods for domestic gas appliances without electrical heating, of maximum electrical input of 1 kW and of maximum gas heat input of 60 kW.

This British Standard specifies the electrical safety requirements for domestic gas appliances, hereinafter referred to as appliances, operating from a 240 V 50 Hz single phase supply without electrical heating and with a maximum electrical input of 1 kW and a maximum gas heat input of 60 kW.

In this standard, references to “hazards?? denote those hazards arising from the electrical equipment and wiring.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.