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GB/T 34016-2017 English PDF (GB/T34016-2017)

GB/T 34016-2017 English PDF (GB/T34016-2017)

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GB/T 34016-2017: Generality of rat and termite proof wires and cables
GB/T 34016-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.20
K 13
Generality of Rat and Termite Proof Wires and Cables
ISSUED ON: JULY 12, 2017
IMPLEMENTED ON: FEBRUARY 1, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 4 
4 Product Classification and Marking ... 5 
5 Technical Requirements ... 7 
6 Inspection Rules ... 8 
Appendix A (normative) Confirmatory Test Method of Rat-proof Characteristic
of Large-diameter Wires and Cables ... 11 
Bibliography ... 13 
Generality of Rat and Termite Proof Wires and Cables
1 Scope
This Standard stipulates the product classification, marking, technical requirements,
inspection rules and test methods of rat and termite proof wires and cables.
This Standard is applicable to wires and cables equipped with rat-proof characteristic;
wires and cables equipped with termite-proof characteristic; wires and cables which
have both characteristics in rat and termite proof.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 2900.10 Electrotechnical Terminology - Electric Cables
GB/T 2951.12 Common Test Methods for Insulating and Sheathing Materials of
Electric and Optical Cables - Part 12: Methods for General Application - Thermal
Ageing Methods
GB/T 50768 Standard for Basic Terminology of Termite Control Project
JB/T 10696.9-2011 Test Methods for Determining Mechanical, Physical and Chemical
Properties of Electric Cables and Wires - Part 9: Termite Test
JB/T 10696.10-2011 Test Methods for Determining Mechanical, Physical and Chemical
Properties of Electric Cables and Wires - Part 10: Rat Gnawing Test
3 Terms and Definitions
What is defined in GB/T 2900.10 and GB/T 50768, and the following terms and
definitions are applicable to this Standard.
3.1 Rat Proof
Rat proof means under the stipulated test conditions, after the test piece and the test
rat co-exist for a stipulated period of time, the characteristic of test piece area loss in
the most severely bitten area within a limited range.
Example 2: rat-proof Grade-1; copper core PVC insulated steel tape armored PVC sheathed
control cable; used for fixed laying; rated voltage: 450/750 V, 24 core; 1.5 mm2;
steel tape armoring; without green/yellow two-color insulated wire core;
implemented standard: GB/T 9330.2-2008, shall be represented as:
Example 3: rat-proof Grade-2 and termite-proof Grade-1; flame retardant Class-B; ethylene
propylene rubber insulated copper wire braided armored elastic outer sheathed
marine control cable; rated voltage: 150/250 V, 19 core; nominal cross-sectional
area: 1.5 mm2; implemented standard: GB/T 9332-2008 and GB/T 19666-2005,
shall be represented as:
5 Technical Requirements
5.1 General Requirements
5.1.1 During the operation, rat-proof and termite-proof wires and cables shall
continuously and effectively be equipped with the expected protection performance
stipulated in 5.2, 5.3 or 5.4.
5.1.2 No matter what kind of physical protection or chemical protection measures are
taken, as long as products with rat-proof, termite-proof or rat and termite-proof
characteristics are added, type tests shall be conducted in accordance with the
stipulations in 6.1.
5.1.3 Cable materials and their processing technology (including after certain
protective measures are adopted) that are selected to implement the rat-proof and
termite-proof characteristics shall not affect human health or destroy the surrounding
natural ecology and environment.
5.2 Rat-proof Characteristic
The magnitude of rat-proof characteristic of wires and cables shall adopt protection
rate value-P, which is determined in JB/T 10696.10-2011, and test piece surface
descriptive evaluation after the tests. In addition, it shall also comply with the
stipulations in Table 2.
Table 2 -- Magnitude Requirements of Rat-proof Characteristic of Wires and
Cables
Code Characteristic Magnitude Test Piece Surface Description after Tests
FS1 P ≥ 0.9 There are no teeth marks or visible bite marks on the surface of the test piece sheath, and the bite depth shall be less than 1 mm.
6.1.1 The rat and termite-proof characteristic of wires and cables shall adopt type tests
for evaluation, which includes characteristic tests of unaged and after accelerated
ageing treatment (6.2).
6.1.2 Type test items of rat and termite-proof wires and cables shall comply with, or,
fully cover the requirements of various implemented standards provided in the basic
model, and the rat-proof and termite-proof characteristic.
6.1.3 In terms of the same model of rat-proof and termite-proof wires and cables of
multiple specifications, at least one specification of products shall be taken for tests of
the characteristic index. If the test pieces are qualified, then, it can be determined that
all the specifications of the model have the stipulated characteristic.
6.1.4 If the manufacturer has a valid type test report of the same basic model of
products, which are not attached with the rat-proof and termite-proof characteristic,
test pieces for the type tests of corresponding rat-proof and termite-proof products may
be randomly taken from the manufacturer, or, from the user’s current stock.
6.1.5 Test pieces used for the tests of the rat-proof characteristic of wires and cables
shall be taken from any specification of products whose external diameter is not more
than 30 mm. When there are multiple options, preferably choose the specification with
a smaller external diameter.
6.1.6 Test pieces used for the tests of the termite-proof characteristic of wires and
cables may be taken from any specification of products. When there are multiple
options, preferably choose the specification with a larger external diameter.
6.1.7 Test pieces used for the tests of the rat-proof and termite-proof characteristic of
wires and cables may be taken from any specification of the same product whose
external diameter is not more than 30 mm, or, be respectively taken from different
specifications of products on the premise of satisfying 6.1.5 and 6.1.6.
6.1.8 Type tests shall be completed by a third-party inspection institution entrusted by
the manufacturer. When the user has demands, through the negotiation between the
demand-side and the supply-side, type tests may be re-conducted. Under the
circumstance that there are no changes in cable materials, or design, or manufacturing
process, the re-conducted type test items can merely include characteristic index tests
in accordance with the stipulations in 5.2, 5.3 and 5.4.
6.2 Determination of Continuity and Effectiveness
6.2.1 After the accelerated ageing treatment of test pieces of wire and cable products,
determine the rat-proof, termite-proof, or rat and termite-proof characteristic magnitude
in accordance with the test methods described in 5.2, 5.3 and 5.4. Adopt this method
to evaluate its continuity and effectiveness.
6.2.2 The recommended ageing treatment conditions are shown in Table 5. Test
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