澳洲AS/NZS 3112插头图2.9温升试验治具|FIGURE 2.9 MOUNTING OF PLUG FOR TEMPERATURE RISE TEST
2.13.8 Temperature rise test
Plugs shall be so constructed that they comply with the following temperature rise test:
(a) Non-rewireable plugs are tested as delivered with the minimum cross-sectional area of conductor size for each respective current rating.
(b) Rewireable plugs are fitted with polyvinyl chloride flexible cords with conductors having the minimum cross-sectional area specified in the manufacturer’s instructions. The terminal screws or nuts are tightened with a torque equal to two-thirds of that specified in Table 2.2 Test No. 5. To ensure normal cooling of the terminals, the conductors connected to plugs shall have a length of at least 1 m. The plug shall be tested in a draught-free environment at the centre of a plane wooden board, which shall be at least 6 + 2 mm thick, 500 mm wide and 500 mm long with the rear completely enclosed in a wooden mounting enclosure (wall box) of 90 × 60 × 40 mm. Apertures in the wooden board for the plug pins to pass through are specified in Table 3.1, see Figure 2.9.
Plugs are tested as follows:
The appropriate clamping units with the dimensions specified in Figure 2.10 are fitted on each live pin of the plug, together with the thermocouple. The screw is then placed approximately in the middle of the bare part of the pin and tightened with a torque of 0.8 Nm. The clamping unit is fitted with PVC-insulated conductors at least 1 m long, having nominal cross-sectional areas as shown in Table 3.3. Where the conductors pass through the wooden mounting enclosure (wall box) there shall be a complete airtight seal between the conductors and the enclosure.
An alternating current of 1.1 times the rated current of the plug is then passed through each live pin/claming unit for 1 h. For plugs with three poles or more, the current during the test shall be passed through the phase contacts, where applicable. In addition, separate tests shall be made passing the current through the neutral contact, if any, and the adjacent phase contact.
The temperature rise of the thermocouple shall not exceed 45 K.