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GB/T 1386.2-1997 Insulators for low voltage power lines--Part 2: Strain insulators for overhead power lines 105.0 via email in 1~3 business day abolished
DL/T 1000.2-2006 Application guide of insulators for overhead lines with a nominal voltage above 1000V part 2:The ceramic or glass insulators for d.c. systems 240.0 via email in 1~3 business day abolished
GB/T 24623-2009 Radio interference test on high-voltage insulators 180.0 via email in 1~3 business day valid
GB/T 28541-2012 Insulation co-ordination for equipments of ±800 kV high voltage direct current converter stations 370.0 via email in 1~3 business day valid
GB/T 26218.1-2010 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 1:Definitions,information and general principles 100.0 via email in 1 business day valid
GB/T 23642-2009 Electrical insulating materials and systems - Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses 285.0 via email in 1~3 business day superseded
GB 17620-1998 General specification for insulating rigid ladder for live working 120.0 via email in 1~3 business day abolished
GB/T 20139.2-2017 Electrical insulation systems―Thermal evaluation of modifications to an established electrical insulation system(EIS)―Part 2:Form-wound EIS 255.0 via email in 1~3 business day valid
GB 11032-2010/XG1-2014 Metal-oxide surge arresters without gaps for a.c. systems 1280.0 via email in 1 business day valid
GB/Z 23756.1-2009 Evaluation of electrical endurance of electrical insulation systems - Part 1: General considerations and evaluation procedures based on normal distributions 230.0 via email in 1~3 business day valid
GB/T 311.3-2017 Insulation co-ordination―Part 3:Procedures for high-voltage direct current(HVDC) converter stations 1455.0 via email in 1~10 business day to be valid
GB 7594.9-1987 Rubber insulation and sheath of electric cables and wires - Part 9: Ordinary duty flame-retardant rubber sheath 85 Centigrade 20.0 via email in 1 business day valid
GB/T 25096-2010 Composite station post insulators for substations with AC voltages greater than 1 000 V—Definitions,test methods and acceptance riteria 450.0 via email in 1~3 business day valid
JB/T 10584-2006 Pin-type insulators of ceramic material for overhead telegraph lines 180.0 via email in 1~3 business day valid
JB/T 9671-2006 Mounting dimensions and terminal dimensions for surge arresters 120.0 via email in 1~3 business day valid
DL/T 1015-2006 Guide for application of voltage measuring system in DC&AC high voltage tests on site 180.0 via email in 1~3 business day valid
GB/T 20876.2-2007 Composite string insulator units for overhead lines with a nominal voltage greater than 1000 V—Part 2:Dimensional and electrical characteristics 150.0 via email in 1~3 business day superseded
GB/T 18802.321-2007 Components for low-voltage surge protective devices—Part 321:Specifications for avalanche breakdown diode(ABD) 200.0 via email in 1~3 business day valid
JB/T 11219.1-2011 End fitting for composite insulator with a high voltage overhead line —Part 1:End fitting for string insulator units 240.0 via email in 1~3 business day valid
GB/T 21429-2008 Composite insulators - Hollow insulators for use in outdoor and indoor electrical equipment - Definitions test methods acceptance criteria and design recommendations 450.0 via email in 1~3 business day valid
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