1 Scope
This standard specifies the terms and definitions, product classification and designation, working conditions, technical requirements, inspection methods, inspection rules, marks and packaging of section insulator products for catenary of electrified railways.
This standard is applicable to the section insulators at the in-phase electric disconnection of the catenary of single-phase AC electrified railways with a nominal voltage of 25 kV.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated reference, the latest edition of the referenced document (including any amendments) applies.
GB/T 1411-2002 Dry, solid insulating materials - Resistance test to high-voltage, low-current arc discharges (IEC 61621:1997, IDT)
GB/T 2900.8-2009 Electrotechnical terminology - Insulators (IEC 60050-471: 2007, IDT)
GB/T 4585-2004 Artificial pollution tests on high-voltage insulators to be used on a.c systems (IEC 60507: 1991, IDT)
GB/T 6553-2003 Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions (IEC 60587:1984, IDT)
GB/T 16927.1-2011 High-voltage test techniques - Part 1: General definitions and test requirements (IEC 60060-1:2006, MOD)
GB/T 20142-2006 Composite line post insulators for A.C. overhead lines with a nominal voltage greater than 1000 V - Definitions, test methods and acceptance criteria
TB/T 2073-2010 General technical specification of fittings for overhead contact system in electrification railway
TB/T 2074-2010 Test methods of fittings for overhead contact system in electrification railway
TB/T 2075.9-2010 Fittings for overhead contact system in electrification railway - Part 9: Connection clamp
TB/T 3199.2-2008 Insulators for overhead contact system of electrified railways - Part 2: Log rod composite insulators
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.8 and the following apply.
3.1
section insulator
insulation equipment for catenary, a member with insulating parts, diversion parts, and fittings inserted into the contact suspension; capable of realizing electric disconnection between in-phase adjacent two sections of contact suspension and allowing the pantograph to pass through and take current uninterruptedly
3.2
conductive runner
part of the section insulator used for diversion
3.3
insulating part
part of the section insulator used for insulation
3.4
section insulator with insulating runner
section insulator with which the pantograph of electric locomotive is in direct contact when the main insulation part is in operation
3.5
section insulator with non insulating runner
section insulator with which the pantograph of electric locomotive is not in direct contact when the main insulation part is in operation
3.6
arc horns
structure consisting of a pair of metal members, with a certain space distance and the ability of arc strike
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and designation
5 Working conditions
6 Technical requirements
7 Inspection methods
8 Inspection rules
9 Marking and packaging
1 Scope
This standard specifies the terms and definitions, product classification and designation, working conditions, technical requirements, inspection methods, inspection rules, marks and packaging of section insulator products for catenary of electrified railways.
This standard is applicable to the section insulators at the in-phase electric disconnection of the catenary of single-phase AC electrified railways with a nominal voltage of 25 kV.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated reference, the latest edition of the referenced document (including any amendments) applies.
GB/T 1411-2002 Dry, solid insulating materials - Resistance test to high-voltage, low-current arc discharges (IEC 61621:1997, IDT)
GB/T 2900.8-2009 Electrotechnical terminology - Insulators (IEC 60050-471: 2007, IDT)
GB/T 4585-2004 Artificial pollution tests on high-voltage insulators to be used on a.c systems (IEC 60507: 1991, IDT)
GB/T 6553-2003 Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions (IEC 60587:1984, IDT)
GB/T 16927.1-2011 High-voltage test techniques - Part 1: General definitions and test requirements (IEC 60060-1:2006, MOD)
GB/T 20142-2006 Composite line post insulators for A.C. overhead lines with a nominal voltage greater than 1000 V - Definitions, test methods and acceptance criteria
TB/T 2073-2010 General technical specification of fittings for overhead contact system in electrification railway
TB/T 2074-2010 Test methods of fittings for overhead contact system in electrification railway
TB/T 2075.9-2010 Fittings for overhead contact system in electrification railway - Part 9: Connection clamp
TB/T 3199.2-2008 Insulators for overhead contact system of electrified railways - Part 2: Log rod composite insulators
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.8 and the following apply.
3.1
section insulator
insulation equipment for catenary, a member with insulating parts, diversion parts, and fittings inserted into the contact suspension; capable of realizing electric disconnection between in-phase adjacent two sections of contact suspension and allowing the pantograph to pass through and take current uninterruptedly
3.2
conductive runner
part of the section insulator used for diversion
3.3
insulating part
part of the section insulator used for insulation
3.4
section insulator with insulating runner
section insulator with which the pantograph of electric locomotive is in direct contact when the main insulation part is in operation
3.5
section insulator with non insulating runner
section insulator with which the pantograph of electric locomotive is not in direct contact when the main insulation part is in operation
3.6
arc horns
structure consisting of a pair of metal members, with a certain space distance and the ability of arc strike
Contents of TB/T 3036-2016
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and designation
5 Working conditions
6 Technical requirements
7 Inspection methods
8 Inspection rules
9 Marking and packaging