This standard applies to E14, E27 and E40 Edison screw lamp holders for use only when lamps and semi-luminaires are connected to a power source. This standard also applies to switch-type lampholders used only in AC circuits with operating voltages not exceeding 250 V (rms). This standard also applies to E5-type screw lampholders with a working voltage not exceeding 25 V and connected in series for indoor use. Elo-type screw lampholders with a working voltage not exceeding 60 V connected in series for indoor and outdoor use, as well as flush-mounted individual lampholders. E10 lamp holder connected to mains. None of these lampholders should be sold at retail. To the extent that this standard is reasonably applicable, it also applies to non-Edison screw lampholders connected in series with a power source. Note 1: This type of lamp holder is used, for example, in Christmas tree lighting circuits. To the extent that this standard is appropriately adopted, this standard also applies to adapters. This standard also applies to lampholders that are fully or partially integrated with the luminaire, and to lampholders that are intended to be installed within equipment. This standard only covers lampholder requirements. For other requirements, such as the anti-shock protection requirements for terminal blocks or lamp holders, they should comply with the standards of the relevant equipment. When the equipment is tested according to its own standards, such magic sockets should be installed in suitable equipment before testing. Such lampholders and lampholders with snap-on housings (when used solely by the luminaire manufacturer) should not be put up for retail sale. This standard applies to lamp holders installed on indoor, outdoor, residential lighting fixtures and industrial lighting equipment. It also applies to candle-shaped lamp holders. In some situations with special usage conditions, such as street lighting, ship decks, motor vehicles, and those dangerous situations prone to explosions, lamp holders with special structures can be used. Note 2: This standard does not apply to the three light source lamp holder E26d. Note 3: This standard is formulated based on the following parameters of the corresponding general lighting lamps:
——E14 type lamp holder uses a lamp with a current not exceeding 2A;
——E27 type lamp holder uses a lamp with a current not exceeding 4 A; ' The E40 lamp holder is used for lamps with a current not exceeding 16 A. Note 4: If the nominal voltage of the power supply does not exceed 130 V, the maximum current of the E40 lamp holder is 32 A (see 4.5 and 5.3). Note 5: For lamp holders used in lamps, the maximum operating temperature is given in GB 7000.1.
IEC 60238:2004 Referenced Document
GB 1406 Types and dimensions of Edison screw lamp caps
GB 15092.1-2003 Switches for appliances-Part 1: General requirements
GB 19148.1-2003 Types and dimensions of edison screw lampholders
GB 4706.1-2005 Household and similar electrical appliances-Safety Part 1:General requirements*， 2005-08-26 Update
GB 5013.1 Rubber insulated cables of rated voltages up to and including 450/750V. Part 1: General requirements
GB 5013.2 Rubber insulated cables of rated voltages up to and including 450/750V. Part 2: Test methods
GB 5013.3 Rubber insulated cables of rated voltages up to and including 450/750V. Part 3: Heat resistant silicone insulated cables
GB 5013.4 Rubber insulated cables of rated voltages up to and including 450/750V. Part 4: Cords and flexible cables
GB 5013.5 Rubber insulated cables of rated voltages up to and including 450/750V. Part 5: Lift cables
GB 5013.6 Rubber insulated cables of rated voltages up to and including 450/750V. Part 6: Arc welding cables
GB 5013.7 Rubber insulated cables of rated voltages up to and including 450/750V. Part 7: Heat resistant ethylene-vinyl acetate rubber insulated cables
GB 5023.1 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 1: General requirements
GB 5023.2 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 2: Test methods
GB 5023.3 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 3: Non-sheathed cables for fixed wiring
GB 5023.4 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 4: Sheathed cables for fixed wiring
GB 5023.5 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 5: Flexible cables (cords)
GB 5023.6 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 6: lift cables and cables for flexible connection
GB 5023.7 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V. Part 7: Flexible cables screened and unscreened with two or more conductors