JB/T 6758.3-2007 English PDF (JBT6758.3-2007)

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JB/T 6758.3-2007: Continuously transposed conductors. Part 3: Less paper insulated netting-typed continuously transposed conductors of polyvinyl acetal enamelled copper wires
JB/T 6758.3-2007
JB
MECHANICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.01
K 12
Record No.. 20370-2007
Continuously Transposed Conductors –
Part 3. Less Paper Insulated Netting-Typed
Continuous Transposed Conductors of Polyvinyl
Acetal Enamelled Copper Wires
ISSUED ON. MARCH 6, 2007
IMPLEMENTED ON. SEPTEMBER 1, 2007
Issued by. National Development and Reform Commission of PRC
3. No action is required - Full-copy of this standard will be automatically and
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Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions, Code and Product Presentation ... 4
4 Models ... 5
5 Specifications ... 5
6 Technical Requirements, Test Methods and Inspection Rules ... 5
6.1 Size and structure ... 6
6.2 Technical requirements and test methods ... 7
6.3 Inspection rules ... 7
Foreword
JB/T 6758 Continuously Transposed Conductor are totally divided into the following 4
parts.
--- Part 1. General Requirements;
--- Part 2. Paper-Insulated Continuously Transposed Conductors of Polyvinyl Acetal
Enamelled Copper Wires;
--- Part 3. Less Paper Insulated Netting-Typed Continuously Transposed
Conductors of Polyvinyl Acetal Enamelled Copper Wires;
--- Part 4. Heat Resistant Continuously Transposed Conductors of Enamelled
Copper Wires.
This Part belongs to Part 3 of JB/T 6758.
This Part was proposed by China Machinery Industry Federation.
This Part shall be under the jurisdiction of National Technical Committee for
Standardization of Wire and Cable (SAC/TC 213).
Drafting organizations of this Part. Shanghai Electric Cable Research Institute.
Participating drafting organizations of this Part. Invex Insulated Conductor (Baoying)
Co. Ltd., Tianjin Nexans Electromagnetic Cable Co., Ltd., Shanghai Yanghang Copper
Material Co., Ltd., Baoding Tianwei Electric Wire Co., Ltd., and Sichuan Jinrui Electric
Engineering Co., Ltd.
Chief drafting staffs of this Part. Ye Bin, Yuan Weiguo, Liu Shunrong, Kang Jing,
Zhaong Gongrong, and Zhang Jingping.
This Part was first-time published.
Continuously Transposed Conductors –
Part 3. Less Paper Insulated Netting-Typed
Continuous Transposed Conductors of Polyvinyl
Acetal Enamelled Copper Wires
1 Scope
This Part of JB/T 6758 specifies the general requirements for less paper insulated
netting-typed continuous transposed conductors of polyvinyl acetal enamelled copper
wires. The continuous transpose conductor core adopts Grade-120 self-adhesive
polyvinyl acetal enamelled rectangular copper wire (thermosetting epoxy resin self-
adhesive layer); mesh rope netting type adopts polyester fiber rope netting; grid netting
type adopts polyester fiber nonwoven strip, epoxy resin glass fiber cloth strip or
perforated insulating paper strip lapping. Copper conductor can be either ordinary soft
copper wire or semi-hard copper wire.
This Part shall be used in conjunction with JB/T 6758.1.
2 Normative References
The provisions in following documents become the provisions of this Part through
reference in this Part of JB/T 6758. For dated references, the subsequent amendments
(excluding corrigendum) or revisions do not apply to this Standard, however, parties
who reach an agreement based on this Standard are encouraged to study if the latest
versions of these documents are applicable. For undated references, the latest edition
of the referenced document applies.
GB/T 4074.2 Test Methods for Winding Wires – Part 2. Determination of
Dimensions (GB/T 4074.2-1999, idt IEC 60851-2.1996)
JB/T 6758.1-2007 Continuously Transposed Conductors – Part 1. General
Requirements
3 Terms and Definitions, Code and Product
If the users have other size requirements, it can be determined through the negotiation
between the supplier and the purchaser.
The oil channel size and shape size of oil-channeled continuously transposed
conductor shall be agreed through the negotiation between the supplier and the
purchaser.
6.1.2 The number of netting rope lapping, lapping direction, position of lining paper,
the number and thickness of lining paper layer shall be determined through the
negotiation between the supplier and the purchaser.
6.1.3 The lapping mode of lapping strip and grid size shall be determined through the
negotiation between the supplier and the purchaser.
6.2 Technical requirements and test methods
The technical requirements and test methods shall conform to the provisions of Table
3.
6.3 Inspection rules
The inspection rules shall conform to the provisions of Clause 6 in JB/T 6758.1-2007.
Table 3
SN Item Names
Technical Requirements
Test
Types Test Methods HKN HWN
HWNC1,
HWNC2
or
HWNC3
HKNC1,
HKNC2
HKNC3 or
HUKNC1,
HUKNC2,
HUKNC3
1 Size
T, S
1.1 Size of enamelled rectangular wire 4.1.2 in JB/T 6758.1-2007 GB/T 4074.2
1.2 Insulation thickness, number of layers 4.3 in JB/T 6758.1-2007
5.2.1 in JB/T
6758.1-2007
1.3 Intermediate lining paper width 4.2.3 in JB/T 6758.1-2007 Generally, use the
steel rule with
precision of 1mm to
measure
1.4 Oil-channel size 6.1 in this Part
1.5 Shape size of continuously transposed conductor 6.1 in this Part
5.2.2 in JB/T
6758.1-2007
Continuously transposed
conductor core of enamelled
rectangular wire
T, S
2.1 Transposition pitch 4.2.4 in JB/T 6758.1-2007 5.2.3 in JB/T