T/ZBH 018-2020 Materials for crystalline silicon photovoltaic modules - Part 2: Rear cover glass
1 Scope
This document specifies the terms and definitions, classification, requirements, test methods, inspection rules, packaging, marking, transportation and storage of rear cover glass for crystalline silicon photovoltaic modules.
This document is applicable to rear cover glass for crystalline silicon photovoltaic modules.
2 Normative references
The following normative documents contain provisions which, through reference in this text. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1216 External micrometer
GB/T 1771 Paints and varnishes - Determination of resistance to neutral salt spray (fog)
GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 6091-2004 Knife straight edge
GB/T 6739-2006 Paints and varnishes - Determination of film hardness by pencil test
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 9056-2004 Metal ruler
GB/T 9266 Determination of scrub resistance of film of architectural paints and coatings
GB 11614 Flat glass
GB 15763.3-2009 Safety glazing materials in building - Part 3: Laminated glass
GB/T 22523 Feeler gauge
GB/T 20428 Granite surface plates
GB/T 30984.1-2015 Solar glass - Part 1: Ultra-clear patterned glass
JC/T 2170-2013 Anti-reflective coated glass for photovoltaic modules
QB/T 2443 Steel measuring tapes
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
rear cover glass
rolled glass and float glass for the rear of double glass crystalline silicon photovoltaic modules
3.2
reflectance ratio of glass
direct solar reflection ratio of the rear cover glass enamel layer in the range of crystalline silicon photovoltaic cell reaction interval (380nm to 1100nm) band
4 Classification
4.1 It is classified into float rear cover glass and rolled rear cover glass according to the nealed glass.
4.2 It is classified into glazed rear cover glass and coated rear cover glass according to processing.
4.3 It is classified into 1.6mm, 1.8mm, 2.0mm and 2.5mm rear cover glass according to the nominal thickness.
5 Requirements
The performance of the product and the test methods shall meet those specified in Table 1.
Table 1 Main requirements and test methods
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Test methods
7 Inspection rules
8 Packaging, marking, transportation and storage
