AS NZS 3122:2015 pdf download.Approval and test specification—Socket-outlet adaptors.
7 PLUG AND SOCKET PORTIONS
The socket portion of the adaptors shall comply with the appropriate requirements of
AS/NZS 3112.
The plug portion of adaptors with integral pins for insertion into socket-outlets shall comply with the requirements for equipment with integral pins for insertion into socket-outlets in accordance with AS/NZS 3112.
8 INSULATING MATERIALS
The insulating portions of a socket-outlet adaptor shall consist of—
(a) insulating material having properties not inferior to those of Class 80 moulding complying with AS/NZS 3121; or
(b) ceramic material of a type such that, after immersion in water for 48 h and after all visible drops of water have been removed from the surface by means of a clean dry cloth, it shall not have increased in mass by more than 2%.
In addition, all insulating portions, except ceramic, of a socket-outlet adaptor shall comply with the requirements of AS/NZS 3112 for ignitability and combustion propagation or with the requirements of AS/NZS 60884.1 for the glow-wire test.
9 TERMINALS AND INTERNAL CONNECTIONS
9.1 Material
Terminals and internal connections intended primarily for carrying current shall be of suitable corrosion-resisting metal of sufficient hardness and rigidity for the intended application.
9.2 Construction of terminals
Terminals of a socket-outlet adaptor having facilities for the connection of a flexible cord shall be capable of accommodating the conductors of a flexible cord of current rating corresponding to the marked current rating of the socket-outlet adaptor.
Facilities shall be provided to prevent slipping or spreading of the conductor strands. Where the facilities are such that the conductor is to be located around the shank of the terminal screw and clamped under the screw head, the following requirements shall apply:
(a) When the terminal screw is screwed into the limit of’ its thread, the clearance between the head of the screw and the washer or means of retention of the conductor shall not exceed 0.4 mm.
(b) The terminal screw shall be of sufficient length to enable it to be backed off sufficiently from the washer or means of’ retention of the conductor so that the conductor may be located around the shank without difficulty.
(c) Where the means of retention of the conductor is not continuous, e.g. prongs, there shall be at least three points of retention and the maximum angle between any two points shall not exceed 1 500.
(d) Where the means of’ retention of’ the conductor is continuous, e.g. portion of the insulating moulding, the angle subtended by the arc of’ the means of retention shall be not less than 1 80°.
When the socket-outlet adaptor is correctly assembled, the terminals shall he held I’irmly in
position.
9.3 Polarity sequence
Where a socket-outlet adaptor has a 3-pin flat-pin plug portion, the internal connections shall be such that the contacts of the socket portions have a polarity sequence of earth, active, neutral, in a clockwise direction when viewed from the front of the socket.
Where a flexible cord is integrally moulded with a socket-outlet adaptor, the conductor with the light blue or black insulation shall be connected to the neutral connection of the socket-outlet adaptor, determined from the above polarity sequence for 3-pin flat-pin types.
10 PINS AND CONTACTS
10.1 Material
Pins and contacts shall be of suitable corrosion-resisting metal of sullicient rigidity and durability for the intended application.
10.2 Construction
Contacts of any socket portion shall make and maintain, under normal service conditions, satisfactory electrical and mechanical contact with the pins of the appropriate type of plug. For a socket-outlet intended to accommodate plugs with flat pins, contact shall be made with both sides of each pin.
The alignment and contact-making properties of contacts shall be independent of terminal screws.
The effectiveness of the contacts shall be independent of’ pressure from any thermoplastic or resilient moulding.
In a socket-outlet designed for use with flat-pin plugs complying with AS/NZS 3 11 2 or AS/NZS 60884.1, the contacts shall be self-adjusting in pitch and contact making.AS NZS 3122 pdf download.