IEC60238 Lampholders Normal Operation Test Apparatus

BS EN60238 figure 4 E14 E27 E40 lampholders Normal Operation Test Apparatus

1.Introduction

The Normal Operation test Apparatus is designed according to BS EN60238 clause 18 and figure 4, and IEC60238-2017 clause 19 and figure 4, it’s used to test the lamp holder when normal use shall cause no excessive wear or other harmful effect. The lamp holder’s insulation and protection against accidental contact shall not be serious affected. Lings, barriers and the like shall have adequate mechanical strength and shall be reliably fixed. Temperature rise and vibration to be expected in normal use shall not cause loosening of electrical connections.

The specimen shall be placed in the test apparatus, a corresponding test cap (E14, E27, E40) shall be screwed in and out with a torque of 0-3Nm for 100 times at a rate of 15 times/min, after reaches the specified number of tests, it will automatically stop. After the test, the specimen shall show: 1). no wear impairing its operation; 2). no damage impairing protection against electric shock; 3). no loosening of electrical contacts; 4). no loosening of the connection between shell and dome; 5). no loosening of the set screw locking the threaded entry.

2.Parameters