This standard specifies the test requirements for mechanical properties and special properties of sheath materials for marine power and communication cables. GB/T 17556-1998 Sheath materials for marine power and communication cables GB/T17556-1998 Standard download decompression password: www.bzxz.net

1Cs 47. 020. 05
National Standard of the People's Republic of China
GB/T 17556 1998
eqvIEc92-3591987
Sheathing materials for shipboard powerand telccommunicatlon cables1998-11-09 Issued
1999-05-01 Implementation
Issued by the State Administration of Quality and Technical Supervision
GE/T17556-1996
This standard is formulated based on the International Electrotechnical Commission publication E2, Part 3, Sheathing materials for power and general purpose cables for electrical equipment (1987, 1st edition) and its revision notice No. 1 (1994 edition). It is equivalent to the international standard in terms of technical content. When the international standard [Et, 92-359] was converted into this national standard, Chapter 2, "Reference Standards", was added, and Chapter 2 of 1E92-359 was changed to Chapter 3. The text was revised accordingly, but the content remained unchanged. This standard shall be implemented from January 1, 1999, and the compliance period is more than 10 years. From January 1, 2010, all the sheathing materials for power and general purpose cables shall comply with the provisions of this standard. This standard was proposed by China Shipbuilding Industry Corporation. This standard was submitted by the Seventh Research Institute of China Shipbuilding Industry Corporation. The drafting units of this standard are: China Shipbuilding Industry Corporation 11th Institute, 704th Institute, Shanghai Cable Research Institute of the Ministry of Machinery Industry, Changzhou Cable Factory.
The main contributors of this standard are Zheng Pingheng Yongbu, Liu Yuezheng, Zhou Shuyuan, and the Seventh Institute is entrusted to interpret this approval.
GR/T17556—1933
IEC Foreword
The IEC (International Commission for the Promotion of International Trade) is a formal organization or agreement of technical committees representing all national committees of different countries concerned with the study of relevant technical issues, which can express international opinions on new issues. These resolutions and agreements are provided for international use in the form of recommended standards and are hereby accepted by all national committees. In order to promote international cooperation, IFC hopes that all countries will adopt the standards of the European Commission as their national standards under the conditions permitted by the IFC. All differences between the standards recommended by the IFC and the corresponding national standards should be clearly indicated in the national standards as much as possible. 1 Standards
National Standard of the People's Republic of China
Sheathlg materialsFor shipbuardpowerandtelerormunicaliun cablesCB/T17556 1998
eqEC:92-359:1987
This standard specifies the mechanical properties and special performance test requirements of sheath materials for shipbuardpowerandtelerormunicaliun cables. 2 References
The text contained in the following standards constitutes the text of this standard through its use in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision and parties using this standard should investigate the possibility of using the most recent edition of the following subtitles. GB/T 2951.1-1S97 General test methods for cable insulation and sheathing materials Part 1: Test methods for cable insulation and sheathing Section 1: Dimensional and overall dimensions measuring machine performance test 1
(6R/T 2S51.2-1997 General test methods for cable insulation and sheathing materials Part 1: Thermal aging test Section 2: Thermal aging test methods (idt1EC811.1-2:985) General test methods for cable insulation and sheathing materials Part 1: General test methods Section 4 GB/2951.4-1997
Temperature test EC81-141985?
GR/T 2951.5-1997
General test methods for cable insulation and sheathing Part 3: Special test methods for screening raw materials Section 1 Oxygen resistance test - Hot elongation test Chemical mineral degradation test (idt1EC811.1-2:985) 811-2-1.1986)
GB/T2061.5-1007
General test methods for cable insulation and sheath materials Part 3: Special test methods for polyvinyl chloride mixtures Section 1 High temperature pressure test - cracking resistance test (il.TECS11-3-1:J985) General test methods for cable insulation and sheath materials Part 3: Special test methods for polyvinyl chloride mixtures Section 1 High temperature pressure test - cracking resistance test (il.TECS11-3-1:J985) General test methods for cable insulation and sheath materials Part 3: Special test methods for polyvinyl chloride mixtures GB/T2951.7--1997||t t||Method Section 2: Weightlessness Test Chamber - Thermal Stability Test Age (sdtIEC811-3-2:1985) GB/T12665.7-1330 Wire and Cable End Fire Test Method Part 7: Wire and Cable Relay Combustion Smoke Concentration Test Method TEC754-1 (1994) Cable Material Gas Release Test during Combustion Part 1: Determination of Hydrogen and Halogen Gas Content 3 Sheath Material
The type, code and type of sheath mixture included in this standard. The maximum temperature allowed for the conductor is shown in Table 1. National Quality Supervision and Inspection Guidelines Approved on November 9, 1998 and implemented on June 1, 1999 GB/T17556-1998 Table 1 Types, codes and maximum temperatures of sheath compounds for conductors Main type of sheath compounds 13 Thermal type - based on ethylene oxide or ethylene chloride-ethylene copolymer - non-surface type 27 Elastic or thermally resistant t||一一base system for secondary cavity
for spraying glue
Note: the manufacturer is not the same as the user, can use equivalent materials, 3.2 machine performance
normal operation of the electric block to find the allowable temperature of the installation
sheath mixture before and after aging machine performance test requirements are listed in Table 2. Table 2 mechanical properties test requirements for expansion sleeve mud material sheath performance before aging (test method H) 2951. 1—19UY Article 2)
1.1, machine data confidential, avoid small, N/nt
1.2 break love length, landscape heart,
2 air by heat aging after the root distribution performance (test supervision party technology CER/T2951.2—1907 Article 8)
Aging temperature (tolerance aging ± 2).
Aging duration, h
2.1 Tensile strength
) small, Y/mm
5) rate of change, large
) percentage of the summer test value of the sample before aging, minimum, at 2-? The breaking elongation rate
a) is significantly smaller.
ratio, large
) the percentage of the test value before aging, the amount is small, along the mechanical vibration basket after hot extraction, (test whole card method control 2051.5-109 No. 10)
test surplus (customer difference ±2Y),
test treatment time,
3.1 tension compression
bending rate. Maximum%
b) the percentage of the test position of the unspread oil sample, the number is small,%3.2 breaking elongation
the change rate is forbidden to be large,|| tt||1) The percentage of the unsaturated oil sample to the test value, minimum, %9 hot extension test (glaze method according to 1/T2051.5-199 test temperature (spring type) load time, blin
machine mold strength N/mm
4.1 The maximum elongation before and after the required, 5
4.2 The maximum elongation after cooling, gwwW.bzxz.Net
blood requires no internal compound oil resistance, it is best to use SHF2 mixture, 2
3.3 Special properties
GB/T 17556--1998
The test requirements for special properties of sheath mixtures are listed in Table 3. Table 3 Test requirements for special properties of sheath mixtures Code of sheath mixture
1 High group force test (test method according to Article 82 of H/12951.5--1997
Conversion duration
: Cable outer diameter or 12.5mm,
—Cable outer diameter>12.
1-1 Allowable maximum deformation, length
2 Anti-opening rate shock test (test method 3. Test (test method according to GB/T 2951.6-1997, test temperature, test duration ...2 Tensile test for cables not tested late (test method according to (B2451.4-1597, 4.3 Product test (test method according to GB/T051.4-1957, test capacity 3), V test bridge, under the condition of hydrogen halide gas composite, large quantity (test method according to EC 5 754-13, mg/g
Daily smoke emission rate, minimum (test method CB1266E.7) root strength () 240
report ground (2040)
3 report micro 02
electricity 1,
one%·bee from the root
N East (2EG5N
excited Wanhao》
, is the outer diameter of the electricity. The early position is mm,
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