Hong Kong Regulations

PLUGS AND ADAPTORS (SAFETY) - SCHEDULE 2

Caution: This is a past version. See the current version here.

                                 SCHEDULE 2                      (section 
4)

SAFETY STANDARDS

Item          Design of plug or adaptor                   Safety standards
 1.   3-rectangular-pin fused plugs rated at 13A       BS 1363 or BS 
5733(1)
 2.   3-round-pin plugs rated at 5A or 15A             BS 546 or BS 5733(2)

 3.   2-pin reversible plugs for shavers               BS 4573 or EN 50075

 4.   13A 3-rectangular-pin adaptors designed to       BS 1363: Part 3

engage with sockets conforming to BS 1363
 5.   5A 3-round-pin adaptors designed to engage       BS 546(3)

with sockets conforming to BS 546
 6.   15A 3-round-pin adaptors designed to engage      BS 546(4)

with sockets conforming to BS 546
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(1) For a 13A plug which is tested to BS 5733, the construction and
dimensions of the plug pins, markings on the plug and fuse links
shall comply with BS 1363.

(2) For a 5A or 15A plug which is tested to BS 5733, the construction
and dimensions of the plug pins and the markings on the plug shall
comply with BS 546.

(3) Despite the requirements stipulated in BS 546-

   (a)  a 5A adaptor protected by fuse links conforming to BS 1362
is permitted; and

   (b)  a 5A adaptor with not more than three 5A sockets protected
by one 5A main fuse links conforming to BS 646 or BS 1362
is permitted.

(4) Despite the requirements stipulated in BS 546-

   (a)  a 15A adaptor protected by fuse links conforming to BS 1362
is permitted;

   (b)  the 15A non-fused socket of a 15A adaptor may be replaced by
a 13A non-fused socket, the construction and dimensions of
which shall comply with BS 1363;

   (c)  a 15A adaptor fitted with a 15A or 13A non-fused socket and
not more than two 5A sockets which are protected by one 5A
main fuse link conforming to BS 646 or BS 1362 is permitted;
and

   (d)  a 15A adaptor with not more than three 5A sockets which are
protected by one 5A main fuse link conforming to BS 646 or
BS 1362 is permitted. Note: The safety standards referred to in this
Regulation are-
         BS 546          Specification for two-pole and earthing-pin plugs,

socket-outlets and socket-outlet adaptors
         BS 646          Specification for  cartridge fuse links  (rated at

up to 5A) for A.C. and D.C. service
         BS 1362         Specification for general  purpose fuse  links for

domestic and similar purposes (primarily for use
in plugs)
         BS 1363         Specification for 13A fused plugs and switched and

unswitched socket-outlets
BS 1363: Part 3 Specification for 13A plugs, socket-outlets and
adaptors (specification for adaptors)
         BS 4573         Specification for 2-pin reversible plugs and 
shaver
socket-outlets
         BS 5733         Specification   for   general   requirements   for

electrical accessories
         EN 50075        Specification for flat  non-wirable two-pole 
plugs,
2.5A 250V, with cord, for the connection of class
II equipment for household and similar purposes
(Enacted 1994)