This part of the scope GB7000 specifies the safety requirements for lamp strings with a power supply voltage not exceeding 250 V, used for indoor or outdoor, series or parallel, and series parallel combinations of incandescent lamps. Note 1: A Christmas tree light string is an example of using a series or series parallel light string - a light string for snowpath or promenade lighting is an example of using a parallel light string - Note 2: For a light string equipped with a plug-in lamp holder, the corresponding requirements of this section apply. Note 3: In some countries, the term 'chains' is replaced by' strings' - Note 4; for non standard lamp strings (such as plug-in lamps), the lamp is considered a part of the lamp string and included in the test (if any, in the certificate). 1.1 The clauses in the normative reference documents listed below become the clauses of this part through the reference surface of this part of GB7000. For dated reference documents, all subsequent modifications are made Neither the corrected content nor the revised version are applicable to this section. However, parties who have reached agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. GB1002-1996 Types, Basic Parameters and Dimensions of Plugs and Sockets for Household and Similar Purposes GB4343-1995 Electric and Electric Heating Appliances for Household and Similar Purposes, Measurement methods and allowable values for radio interference characteristics of electric tools and similar electrical appliances (eqv CISPR 14:1993) GB/T 5013 (all parts) Rubber insulated cables with rated voltages of 450/750 V and below (IEC 60245 (all parts). IDT) GB/T 5023 (all parts) PVC insulated cables with rated voltages of 450/750 V and below (IEC 60227< all parts), IDT) GB 7000.1 Lamp Part 1: General Requirements and Tests (GB 7000.1-2007, IEC 60598-1:2003, 1DT) GB17936 Bayonet Lamp Holders (GB17936-2007, IEC61184; 1997, 1DT) GB 19510.12 Lamp Control Devices Part 12: Special Requirements for Miscellaneous Electronic Circuits Used with Lamps (GB 19510.12-2005, EC61347-2-11:2001, IDT) IEC 60238; 2004 screw lampholders IEC 60320; 1981 Appliance couplers for general and similar purposes IEC 60811-3-1; 2001 General Test Methods for Cable Insulation and Sheath Materials, Part 3; Special test methods for polyvinyl chloride mixtures - Section 1: High temperature pressure test - Resistance to cracking test
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