IS 302 : Part 2 : Sec 203 : 1994 Safety of Household and Similar Electrical Appliances - Part 2 : Particular Requirements - Section 203 : Electric Call Bells and Buzzers for Indoor Use

1. Scope

This clause of IS 302·1 (1979) is applicable except as follows:

1.1 This standard covers the general and safety requirements for electrically operated call bells and buzzers for indoor use designed for connection to supplies at voltages not exceeding 250 V ac single phase 50 cIs or dc.