Description of content:
This standard applies to incandescent lamps for general lighting service which comply with the requirements in IEC publication 432: Safety requirements for tungsten filament lamps for domestic and similar general lighting purposes, and having:
· A nominal life of 1000 h
· A rated wattage of 25 W to 200 W, inclusive
· A rated voltage of 100 V to 250 V, inclusive
This Pakistan Standard applies to tungsten filament incandescent lamps for general lighting service (GLS) which comply with the safety requirements in PS:IEC 60432-1 and having:
· Rated wattage of 25 W to 200 W, inclusive
· Rated voltage 100 V to 250 V, including marked voltage range not exceeding ±2,5 % of the mean voltage)
· Bulbs of the A or PS shapes
· Bulbs with clear, frosted or equivalently coated finishes, or white finishes
· Caps B22d, E26 or E27
Specific lamp types are covered in Section 8.
This standard states the performance requirements for lamps, including test methods and means of confirming compliance with the requirements. Whole production appraisal methods regarding a lamp manufacturer's test record on finished products are defined. This method can be applied for certification purposes. Details of a batch test procedure, which can be used to make an assessment of specific batches, are included, but it is not suitable for certification purposes. For some of the requirements given in this standard, reference is made to "the relevant data sheet". For some lamps, these data sheets are contained in this standard. For other lamps, falling under the scope of this standard, the relevant data are supplied by the lamp manufacturer or responsible vendor.
The test and measurement methods contained in this standard are also applicable for the assessment of tungsten filament incandescent lamps not directly covered by the scope of this standard e.g. other bulb shapes, finishes etc.
Normative references:
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
· PS: IEC 60061-1, Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety – Part 1: Lamp caps
· PS: IEC 60061-2, Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety – Part 2: Lamp holders
· PS: IEC 60061-3, Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety – Part 3: Gauges
· PS: IEC 60432-1, Incandescent Lamps – Safety Specifications – Part 1: Tungsten Filament Lamps for Domestic and Similar General Lighting Purposes
· PS: IEC 60630, Maximum Lamp Outlines for Incandescent Lamps
· PS: IEC 60887, Glass Bulb Designation System for Lamps
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