TIS 166-2549 (2020) Thai Industrial Standard for
PLUGS AND SOCKET-OUTLETS FOR HOUSEHOLD AND SIMILAR PURPOSES : PLUGS AND SOCKET-OUTLETS WITH RATED VOLTAGE NOT EXCEEDING 250 V
1. Scope
1.1 This standard applies to plugs and fixed socket-outlets or portable socketoutlets for a.c. only, with a rated voltage being not more than 250 V and a rated current not more than 16 A, intended for household and similar purposes, either indoors or outdoors, at ambient temperatures not normally exceeding 40° C.
1.2 This standard also applies to plugs incorporated in cord sets, to plugs and portable socket-outlets incorporated in cord extension sets and to plugs and socket-outlets which are components of an appliance, unless otherwise stated in the standard for the relevant appliance.
1
GaugeName：Gauge for checking impossibility of single-pole insertion of plugs
Gauge detail：TIS166-2549-Figure A.1
Gauge quantity: 2
2
GaugeName：Gauge for testing the contact of the live contact tube
Gauge detail：TIS166-2549-Figure A.2
Gauge quantity: 3
3
GaugeName：Gauge for testing the contact of the earthing contact before live contact
Gauge detail: TIS166-2549-Figure A.3
Gauge quantity: 1
4
GaugeName：Gauge for testing resilience test and contact force of the contact tube.
Gauge detail：TIS166-2549-Figure A.4
Gauge quantity: 3
5
GaugeName：Gauge for initial testing dimensions of the socket-outlet
Gauge detail: TIS166-2549-Figure A.5
Gauge quantity: 2
6
GaugeName：Gauge for testing maximum withdrawal force
Gauge detail: TIS166-2549-Figure A.6
Gauge quantity: 2
7
GaugeName：Gauge for testing minimum withdrawal force
Gauge detail: TIS166-2549-Figure A.7
Gauge quantity: 2
8
GaugeName：Gauge for testing earthing contact is made before the current-carrying
contacts for flat-round pin socket-outlet
Gauge detail: TIS166-2549-Figure A.8
Gauge quantity: 1
9
GaugeName：Gauge for testing maximum withdrawal force for flat-round pin socket-
outlet.
Gauge detail: TIS166-2549-Figure A.9
Gauge quantity: 1
10
GaugeName：Gauge for testing minimum withdrawal force of current-carrying
pole for flat-round pin socket-outlet
Gauge detail: TIS166-2549-Figure A.10
Gauge quantity: 1
