GB/T 9330-2020 PDF English
US$535.00 · In stock · Download in 9 secondsGB/T 9330-2020: Plastic insulated control cables Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 9330: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 9330-2020 | English | 535 |
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Plastic insulated control cables
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| GB/T 9330.1-2008 | English | 85 |
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Plastic insulated control cables -- Part 1: General requirements
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| GB 9330.1-1988 | English | 359 |
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Plastic insulated control cables--General
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Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 9330-2020
GB/T 9330-2020: Plastic insulated control cables---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT9330-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.20
K 13
Replacing GB/T 9330.1-2008, GB/T 9330.2-2008, GB/T 9330.3-2008
Plastic insulated control cables
Issued on. MARCH 31, 2020
Implemented on. OCTOBER 01, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Product codes and representation methods... 7
5 Cable names, models and specifications... 9
6 Finished cable marking and cable insulation core identification... 11
7 Technical requirements and test methods... 13
8 Finished cables... 25
9 Delivery length... 28
10 Inspection rules... 28
11 Use features... 31
12 Packaging... 32
Annex A (normative) Calculation method of assumed value... 33
1 Scope
This Standard specifies the product code and representation method, cable name and
model specifications, finished cable marking and insulation core identification,
technical requirements, test methods and inspection rules, usage characteristics and
packaging of extruded polyvinyl chloride and cross-linked polyethylene insulated,
polyvinyl chloride, polyethylene and halogen-free polyolefin sheathed control cables
with an AC rated voltage U0/U of 450/750 V.
This Standard applies to control cables used for fixed installation in control, monitoring
circuits and protection lines with an AC rated voltage U0/U of 450/750 V and below.
2 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.
GB/T 2900.10, Electrotechnical terminology -- Electric cables
GB/T 2951.11-2008, Common test methods for insulating and sheathing materials
of electric and optical cables -- Part 11.Methods for general application --
Measurement of thickness and overall dimensions -- Tests for determining the
mechanical properties
GB/T 2951.12-2008, Common test methods for insulating and sheathing materials
of electric and optical cables -- Part 12.Methods for general application -- Thermal
ageing methods
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 2900.10
as well as the followings apply.
3.1 routine tests; R
Tests carried out by the manufacturer on all manufactured lengths of finished cable to
verify that all cables conform to specified requirements.
3.3 type tests; T
Tests carried out on a type of cable specified in this standard before it is supplied, on a
commercial basis, to demonstrate that the cable has satisfactory performance under the
conditions of intended use.
3.4 rated voltage
Reference voltage for cable structure design and electrical performance testing.
4 Product codes and representation methods
4.1 Product codes
See Table 1 for product codes.
4.2 Product representation methods
4.2.1 Products are indicated by model, specification and standard number.
4.2.4 The green/yellow combination insulated cores in the cable shall be indicated
separately from other cores.
Example 1.Copper core PVC insulated PVC sheathed control cable, with rated voltage
450/750 V, 24 cores, 1.5 mm2 (type 1 conductor structure), green/yellow combination
color insulation core, is expressed as.
5 Cable names, models and specifications
5.1 Commonly used cable models and names are shown in Table 2.
5.2 The cable specifications are shown in Table 3.
6 Finished cable marking and cable insulation core identification
6.1 Finished cable marking
6.1.1 Marking content
Finished cables shall have continuous markings of the manufacturer’s name, cable
model, specification and rated voltage. The manufacturer’s name marking can be the
manufacturer’s name or a registered trademark.
All marks shall be legible.
6.1.4 Abrasion resistance
Ink printed marks shall be abrasion resistant. The marks shall remain basically
unchanged after being wiped.
6.2 Identification of cable insulation cores
6.2.1 General requirements
6.2.2 Color identification of cable insulation cores
When the cable insulation core is identified by colored insulation, the preferred color
spectrum for cables with five cores or less is.
6.2.3 Digital identification of cable insulation cores
6.2.3.1 General requirements
When cable insulation cores are identified by numbers, the insulation shall be of the
same color and arranged in numerical sequence, except for green/yellow combination
insulation cores (if any).
6.2.3.2 Arrangement of marks
The digital identification marks shall be repeated at equal intervals along the insulated
wire core. Two adjacent sets of digital marks shall be reversed.
7 Technical requirements and test methods
7.1 Conductor
7.1.1 Conductor material
The conductor material shall be annealed copper wire. The single wire in the conductor
can be untinned or tinned.
7.2 Insulation
7.2.1 Insulation materials
The insulation material shall be one of the various insulation mixtures listed in Table 4.
The maximum conductor temperature of cables with different types of insulation
mixtures is shown in Table 4.The mechanical and physical property requirements and
test methods of insulation are shown in Table 5.
7.2.2 Insulation structure
The insulation shall be tightly extruded onto the conductor and shall be easily strippable
without damaging the insulation, the conductor or the tin coating (if any).
The nominal thickness of insulation is shown in Table 6.
7.3 Cabling and fillers
7.3.1 Laying direction and laying pitch
The insulated wire cores shall be twisted into cables, and the twisting direction of the
outermost layer shall be right-handed.
Laying pitch.
7.3.2 Wire arrangement
The green/yellow combination insulated core (if any) shall be placed on the outermost
layer of the cable core.
7.4 Metal shielding
7.4.1 General provisions
Shielded cables shall have a metal shielding layer outside the cable core. Metal
shielding includes metal (composite) tape wrapped shielding and metal wire braided
shielding.
7.4.3 Metal braided shield
The metal wire braided shield shall be made of soft round copper wire or tinned round
copper wire of the same nominal diameter. The braiding density shall not be less than
80%.
7.5 Inner lining (isolation sleeve)
7.5.1 Inner lining (isolation sleeve) structure
Armored cables shall have an inner lining layer (shielded armored cables have an
isolation sleeve, which is collectively referred to as the inner lining layer unless
7.5.2 Lining material
The lining material shall be non-hygroscopic and suitable for the operating temperature
of the cable and compatible with the cable insulation material.
7.6 Metal armor
Assumed diameter before extrusion or wrapping Dn a mm
7.6.1 Armor material
Armored steel strips shall be galvanized steel strips.
Armored steel wires shall be round galvanized steel wires.
7.9 Cable outer diameter
The upper limit of the outer diameter of the finished cable is calculated according to
Annex A. The average outer diameter of the finished cable shall not be greater than the
upper limit.
8 Finished cables
8.1 Inspection of structural dimensions of finished cables
The structural dimensions of the finished cable shall comply with the provisions of
Chapter 7.The structural dimensions of the cable shall be checked by measuring tools
or manually.
8.3 Voltage tests
Test item Unit Requirements Test method
8.4 Insulation resistance measurement
The insulation resistance at the highest conductor temperature during normal operation
of the finished cable shall comply with the requirements of Table 17.
8.5 Mechanical and physical properties test of insulation and sheath
The mechanical and physical properties of finished cable insulation shall comply with
the requirements of Table 15.
8.6 Cable combustion performance test
The flame retardant performance of a single strand of PVC sheathed cable, single strand
flame retardant polyethylene sheathed cable, and single strand halogen-free low-smoke
flame retardant cable shall comply with the requirements of GB/T 19666.
8.7 Identification inspection for finished cable marks and cable insulation cores
Finished cable marks shall comply with the requirements of 6.1.
9 Delivery length
The length to be delivered shall be based on the agreed length between the two parties.
The length measurement error shall not exceed ±0.5%.
10 Inspection rules
10.1 The inspection items, test types and test methods are shown in Table 19.The
inspection items shall be determined according to the product model and specifications.
10.2 Products must be inspected and approved by the manufacturer before leaving the
factory. The products leaving the factory must be accompanied by a product quality
certificate.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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