BS 1363-1 Figure 5 Gauge for Plug Pin

Suitable means shall be provided for withdrawing the plug without subjecting the flexible cable to stress.

Conformity shall be checked by inspection.

Non-rewirable plugs shall be fitted with flexible cables in accordance with 20.4.

Conformity shall be checked by inspection.

Conductive component parts of plugs shall be so located and separated that, in normal use, they cannot be displaced so as to affect adversely the safety or proper operation of the plug.

Conformity shall be checked by inspection and manual manipulations.

Line and neutral plug pins shall be fitted with insulating sleeves. The dimensions of the pin and sleeve shall fall within those given in Figure 4a), Sleeves shall not be fitted to any earthing plug pin.

Conformity shall be checked by inspection and by measurement for pin and sleeve and use of the gauge shown in Figure 5 as described in 13.2.1 for socket-outlet compatibility.

After the test the plug shall fit the Figure 5 gauge when used in the manner described in 13.2.1 with a force not exceeding 20 N.

When testing a plug fitted with an ISOD due to the flexibility of plastic materials some additional alignment of the ISOD is allowed when inserting into the Figure 5 gauge. Where alignment cannot be maintained the test of BS 1363-2:2023,14.8 shall be performed and the maximum withdrawal force from a socket-outlet conforming toBS 1363-2:2023 shall not exceed 36 N.

Conformity shall be checked by inspection and by the following test. The plug shall be clamped in a block as shown in Figure 33. Each pin shall be twisted about its longitudinal axis by applying a torque of 1 Nm ±10%, for 60+s. The torque tube and its position on the plug pin shall be as shown in Figure 33. After each pin has been separately twisted, the plug shall fit the gauge shown in Figure 5, The test shall then be repeated with each plug pin being twisted in the opposite direction to that of the first test. After this second test, the plug shall fit the gauge shown in Figure 5. In each case, the gauge is used in the manner as described in13.2.1.

During each test the delineation from the horizontal measured on the scale shall not exceed 3° 30′. After all tests have been completed the plugs shall fit the gauge shown in Figure 5 when used in the manner as described in 13.2.1.

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