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GB 21350-2023: The norm of energy consumption per unit production of wrought copper and copper alloy
GB 21350-2023
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
Replacing GB 21350-2013, GB 29137-2012, GB 29442-2012, GB 29443-2012,
GB 32046-2015
The norm of energy consumption per unit production of
wrought copper and copper alloy
ISSUED ON: MAY 23, 2023
IMPLEMENTED ON: JUNE 1, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 6
4 Product categories ... 7
5 Levels of allowance of energy consumption ... 7
6 Technical requirements ... 17
7 Statistical scope and calculation methods ... 18
Appendix A (Informative) Standard coal coefficients of various energy sources
(reference values) ... 23
Appendix B (Informative) Standard coal coefficients of main energy-consumed
mediums (in energy source equivalent values) (reference values) ... 25
References ... 26
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents.
This document replaces GB 21350-2013 The norm of energy consumption per unit
products of copper and copper-alloy tube, GB 29137-2012 The norm of energy
consumption per unit products of copper and copper-alloy wire, GB 29443-2012 The
norm of energy consumption per unit product of copper and copper-alloy rod and bar,
GB 29442-2012 The norm of energy consumption per unit products of copper and
copper-alloy sheet, strip, foil, and GB 32046-2015 The norm of energy consumption
per unit products of copper drawing stock for electrical purpose; compared with GB
21350-2013, GB 29137-2012, GB 29442-2012, GB 29443-2012 and GB 32046-2015,
except for structural adjustments and editorial changes, the main technical changes are
as follows:
a) The "advanced value", "access value" and "limit value" are changed to "Level
1", "Level 2" and "Level 3" (see Table 2, Table 3, Table 4, Table 5, Table 6,
Table 7, Table 8, Table 9, and Table 10; see Chapter 4 of GB 21350-2013,
Chapter 4 of GB 29137-2012, Chapter 4 of GB 29442-2012, Chapter 4 of GB
29443-2012, and Chapter 4 of GB 32046-2015);
b) The "allowance of energy consumption for hot working procedure",
"allowance of energy consumption for cold working procedure", "allowance
of energy consumption for finishing process" and "allowance of energy
consumption for annealing process" in "allowance of energy consumption per
unit throughput in an incomplete work company" are merged and changed to
the "allowance of comprehensive energy consumption per unit throughput in
processing procedures" (see Table 2; see Table 3, Table 5 and Table 7 of GB
21350-2013);
c) The requirements for "allowance of energy consumption per unit throughput
in a complete work company" and "allowance of energy consumption per unit
throughput in an incomplete work company" are unified (see Table 2; see
Chapter 4 of GB 21350-2013);
d) "Unit energy consumption in melting and casting procedures" and "unit energy
consumption in processing procedures" are changed to "allowance of
comprehensive energy consumption for unit output of product in the melting
and casting procedures" and "allowance of comprehensive energy
consumption for unit output of product in processing procedures" (see Table
2, Table 3, Table 4, Table 5, Table 6, Table 7, Table 8, and Table 9; see Chapter
4 of GB 21350-2013, Chapter 4 of GB 29137-2012, Chapter 4 of GB 29442-
2012, and Chapter 4 of GB 29443-2012);
e) The index requirements for "allowance of comprehensive energy consumption
for unit output of product in the melting and casting procedures", "allowance
of comprehensive energy consumption for unit output of product in processing
procedures" and "allowance of comprehensive energy consumption for unit
output of product in whole procedures" are changed (see Table 2, Table 3,
Table 4, Table 5, Table 6, Table 7, Table 8, and Table 9; see Chapter 4 of GB
21350-2013, Chapter 4 of GB 29137-2012, Chapter 4 of GB 29442-2012, and
Chapter 4 of GB 29443-2012);
f) "Allowance of all comprehensive energy consumption" is deleted (see Chapter
4 of GB 21350-2013, Chapter 4 of GB 29137-2012, Chapter 4 of GB 29442-
2012, and Chapter 4 of GB 29443-2012);
g) The index requirements for "Level 1", "Level 2" and "Level 3" of allowance
of energy consumption for high copper tubes, high copper bars by the
extrusion method, high copper wires, and high copper sheets, strips and foils
by the hot rolling method are added (see table 2. Table 3, Table 4, and Table
7);
h) The footnotes "the allowance of energy consumption of finned tubes is 1.1
times the corresponding value in the table" and "the allowance of energy
consumption of tubes with an outer diameter not larger than 4 mm is 1.2 times
the corresponding value in the table" are added to the table (see Table 2);
i) The footnote "the allowance of energy consumption of products with the
specifications of 0.2 mm< Φ≤0.8 mm is 2.4 times the corresponding value in
the table; the allowance of energy consumption of products with specifications
of 0.8 mm< Φ≤1.5 mm is 1.8 times of the corresponding value in the table; the
allowance of energy consumption of products with specifications of 1.5
mm< Φ≤3.0 mm is 1.35 times the corresponding value in the table" is added to
the tables (see Table 3, Table 4, Table 5, and Table 6);
j) The tables' footnotes "the allowance of energy consumption of foils with a
thickness less than 0.06 mm is 1.5 times the corresponding value in the table"
are deleted (see Table 2, Table 3, Table 5, Table 6, Table 8, and Table 9 of GB
29442-2012);
k) The footnote "the allowance of energy consumption of foils with a thickness
less than 0.15 mm is 1.2 times the corresponding value in the table" is added
to the table (see Table 9);
l) Product varieties and product standard numbers are added (see Table 11);
The norm of energy consumption per unit production of
wrought copper and copper alloy
1 Scope
This document stipulates the levels of allowance, technical requirements, statistical
scope, and calculation methods for energy consumption per unit throughput of wrought
copper and copper alloy products (hereinafter referred to as energy consumption).
This document applies to the calculation and assessment of per unit throughput energy
consumption of manufacturing enterprises that wrought copper and copper alloy ingots
(billets), tubes, rods, wires, sheets, strips, foils, and the copper drawing stocks for
electrical purposes, as well as energy consumption control for new and expansion
projects.
This document is not applicable to the calculation and assessment of energy
consumption of wrought copper and copper alloy products produced by special
processes such as powder metallurgy, vacuum casting, multi-stage aging, etc.
2 Normative references
The following documents contain the provisions which, through normative reference in
this document, constitute the essential provisions of this document. For the dated
referenced documents, only the versions with the indicated dates are applicable to this
document; for the undated referenced documents, only the latest version (including all
the amendments) is applicable to this document.
GB/T 2589 General rules for calculation of the comprehensive energy consumption
GB/T 12723 General principles for establishi...