1 Scope
This standard specifies the technical requirements and test methods for silicone rubber insulation materials for outdoor AC/DC composite insulators with a nominal voltage greater than 1,000V.
This standard is applicable to silicone rubber insulation materials for composite insulators, but not to such insulation materials as silicone oil, silicone grease, RTV coating, epoxy resin, and ethylene propylene rubber.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition applies.
GB/T 528 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties (GB 528-2009, ISO 37: 2005, IDT)
GB/T 529 Rubber vulcanized or thermoplastic - Determination of tear strength (Trouser, angle and crescent test pieces) (GB/T 529-2008, ISO34-1: 1994, MOD)
GB/T 531.1 Rubber vulcanized or thermoplastic - Determination of indentation hardness - Part 1: Durometer method (Shore hardness) (GB/T31.1-2008, ISO 7619-1: 2004, IDT)
GB/T 1408.1 Electrical strength of insulating materials - Test methods - Part 1: Tests at power frequencies (GB/T 1408.1-2006, IEC 60243-1: 1998, IDT)
GB/T 1692 Vulcanized rubber - Determination of the insulation resistivity
GB/T 2900.5 Electrotechnical Terminology - Insulating solids, liquids and gases [GB/T2900.5-2002, IEC60050(212): 1990, EQV]
GB/T 2900.8 Electrotechnical terminology - Insulators (GB/T 2900.8-2009, IEC 60050-471: 2007, IDT)
GB/T 2900.19 Electrotechnical terminology - High-voltage test technique and insulation co-ordination (GB/T 2900.19-1994, IEC 60071-1: 1993, NEQ)
GB/T 2941 Rubber - General procedures for preparing and conditioning test pieces for physical test methods(GB/T 2941-2006, ISO 23529: 2004, IDT)
GB/T 3505 Geometrical product specifications (GPS) - Surface texture: Profile method - Terms definitions and surface texture parameters (GB/T 3505-2009, ISO 4287: 1997, IDT)
GB/T 4585 Artificial pollution tests on high-voltage insulators to be used on A.C. systems (GB/T 4585-2004, IEC 60507: 1991, IDT)
GB/T 6553 Electrical insulating materials used under severe ambient conditions - Test methods for evaluating resistance to tracking and erosion (GB/T 6553-2003, IEC 60587: 1984, IDT)
GB/T 9881 Rubber - Vocabulary (GB/T 9881-2008, ISO 1382: 2008, MOD)
GB/T 10707 Rubber - Determination of the burning behaviour
GB/T 16422.1 Plastics - Methods of the exposure to laboratory light sources - Part 1: General guidance (GB/T 16422.1-2006, ISO 4892-1: 1999, IDT)
GB/T 16422.2 Plastics - Methods of the exposure to laboratory light sources - Part 2: Xenon-arc sources (GB/T 16422.2-1999, ISO 4892-2: 1994, IDT)
GB/T 16422.3 Plastics - Methods of the exposure to laboratory light sources - Part 3: Fluorescent UV lamps (GB/T 16422.3-1997, ISO 4892-3: 1994, EQV)
DL/T 810-2002 Technical specification for ±500kV D.C long rod composite insulators
DL/T 864 Application guide of composite insulators for AC overhand lines with a nominal voltage over 1000v
3 Terms and definitions
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Inspection rules
6 Test methods
Annex A (Normative) Accelerated aging test
Annex B (Informative) Typical states for hydrophobicity grading (HC value)
