SPECIFICATION FOR 13A PLUGS, SOCKET-OUTLETS, ADAPTORS AND CONNECTION UNITS PART 3 : SPECIFICATION FOR ADAPTORS (FIRST REVISION)
This Part of MS 589 specifies the requirements for adaptors having insulating sleeves on the
line and neutral plug pins and suitable for use with socket-outlets complying with MS 589 : Part
2, with particular reference to safety in normal use. Adaptors specified in this Standard are
intended for household, commercial and light industrial purposes. The adaptors are suitable for
the connection of portable appliances, sound-vision equipment, luminaires, etc., in a. c. circuits
only, operating at voltages not exceeding 250 V r.m.s. at 50 Hz.
Assemblies comprising a plug and one or more portable socket-outlets connected together by a
flexible cord or cable are not considered to be adaptors accordings to this Part of MS 589.
Devices incorporating switches, transformers, timers, thermostats or other control means are
outside the scope of this Part of MS 589.
NOTES.
1. The titles of the publications referred to in this standard are listed on the inside back cover.
2. In order to maintain safety and interchangeability with plugs and socket-outlets it is necessary that these products
comply with the requirements of clauses 9, 12 and 13 however their body outline need not be limited at a distance of
6.35 mm from the plug engagement face.
3. Requirements for electromagnetic compatibility are not given for the following reasons.
An adaptor does not emit intolerable electromagnetic interference since significant electromagnetic disturbances are only
generated during insertion and withdrawal which are not continuous.
An adaptor is mechanical by nature of construction. The product is therefore immune from electromagnetic interference.
Published
• (none) / MS 589-3:2012 / (none)
PDF
10/07/2019
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