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Table 1 Overcurrent protection of lampholders
Type of lampholder	Cap type	Maximum rating of overcurrent protective device protecting the circuit (A)
BS 5042 or	B15 SBC	6
BS EN 61184	B22 BC	16
Bayonet type
BS EN 60238	E14 SES	6
Edison screw	E27 ES	16
	E40 GES	16
Note: Where overload protection is omitted, then a calculation must be made to ensure that the conductors concerned are large enough to carry the fault currents without damage until the overcurrent device operates.