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GB/T 12970.3-2009 English PDFUS$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 12970.3-2009: Flexible copper stranded conductors for electrical purposes -- Part 3: Flexible copper wire for antenna Status: Valid GB/T 12970.3: Evolution and historical versions
Basic data
GB/T 12970.3-2009: Flexible copper stranded conductors for electrical purposes -- Part 3: Flexible copper wire for antenna---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Flexible copper stranded conductors for electrical purposes Part 3. Flexible copper wire for antenna ICS 29.060.10 K11 National Standards of People's Republic of China Replacing GB/T 12970.3-1991 Electrical soft copper wire Part 3. Flexible copper antenna Posted 2009-03-19 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 12970 "Electrical soft copper stranded" is divided into four parts. --- Part 1. General requirements; --- Part 2. soft copper wire; --- Part 3. Flexible copper antenna; --- Part 4. Copper wire brush. This section GB/T 12970 Part 3. This Part replaces GB/T 12970.3-1991 "soft copper stranded Electrical Part 3. Soft copper wire." This section compared with the GB/T 12970.3-1991 The main changes are as follows. --- Increasing the test surface quality inspection requirements (5 edition). This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Standardization Technical Committee Wire and Cable (SAC/TC213) centralized. This part of the unit responsible for drafting. Shanghai Electric Cable Research Institute. Participated in the drafting of this section. Shenzhen, China Cable Co., Ltd., Shanghai copper metal braid copper plant Jiang Su Jiangrun Copper Co. the company. The main drafters of this section. Liu Bin, party Peng, Zhang Peng, Chenya Fu, Liu Liming. This part of the standard replaces the previous editions are. --- GB/T 12970.3-1991. Electrical soft copper wire Part 3. Flexible copper antenna1 ScopeGB/T 12970 provisions of this part of the soft copper antenna model specifications, technical requirements and testing. This section applies to communications overhead antenna. This section should be used in conjunction with the GB/T 12970.1-2009.2 Normative referencesThe following documents contain provisions which, through reference GB/T 12970 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 3048.4-2007 electrical wire and cable performance test methods - Part 4. Conductor DC resistance test GB/T 4909.2-2009 Test methods for bare wires - Part 2. Measure GB/T 4909.3-2009 Test methods for bare wires - Part 3. Tensile Test GB/T 12970.1-2009 Electrical soft copper wire - Part 1. General requirements3 models and specificationsSoft copper antenna model TTR, soft copper antenna as shown in Table 1. Table 1 soft copper antenna specifications model Nominal cross-sectional area mm2 TTR 1.0 ~ 25 4. Technical Requirements 4.1 Structure Soft copper antenna structure shall be in accordance with Table 2. Table 2 soft copper antenna structure Nominal cross-sectional area mm2 Calculated cross-sectional area mm2 structure The number of shares ×/singlet nominal diameter mm Calculation of outer diameter mm Calculated mass kg/km 1.0 0.958 7 × 7/0.16 1.44 9.0 1.6 1.54 7 × 7/0.20 1.80 14.1 2.5 2.41 7 × 7/0.25 2.25 22.1 4.0 3.94 7 × 7/0.32 2.88 36.1 6.3 6.16 7 × 7/0.40 3.60 56.4 10 10.01 7 × 7/0.51 4.59 91.7 16 16.26 7 × 7/0.65 5.85 149 25 24.63 7 × 7/0.80 7.20 226 ...... |