Detail of DL/T 5161.2-2002

Introduction of DL/T 5161.2-2002

This part is Part 2: High Voltage Electric Power Equipment of this set of standard, which is compiled according to the notice on development and revision power sector standard plan in 1997 by the former Ministry of Power Industry (ZJK [1998] No. 28). This part is the table form of GBJ-1990 “Code for Construction and Acceptance of Electric Device for Explosion Atmospheres and Fire Hazard Electrical Equipment Installation Engineering”, relevant national standards and professional standards and is professional standard of quality Checkout of high voltage electric powe. 1 Installation of Sulphur Hexafluoride Gas-insulated-switchgears 1.0.1 See Table 1.0.1 for installation and Checkout of sulphur hexafluoride gas-insulated-switchgear foundations and equipment supports. Table 1.0.1 Installation of Sulphur Hexafluoride Gas-insulated-switchgear Foundations and Equipment Supports Procedure Checkout item Property Quality criterion Checkout method and instrument Foundation Checkout Interphase elevation error Major Less than 220kV: ≤2mm more than or equal to 220 kV: ≤5mm Checking with gradienter Homophase elevation error Major ≤2mm X, Y wire error of the same set Major ≤1mm Checking with theodolite Errors among middle phase x, y axis of circuit-breaker and x, y axis of electrical room and x, y axis of other equipment Major Less than 220: ≤3mm more than or equal to 220 kV: ≤5mm Elevation error between indoor and equipment foundations of electrical devices Major Less than 220kV: ≤5mm more than or equal to 220k: ≤10mm Checking with gradienter Error between x axis of electrical device chamber and y axis of indoor and outdoor equipment foundation Major ≤5mm Checking with theodolite Foundation surface Errors of adjacent foundation embedded parts ≤2mm Checking with gradienter Errors of all the foundation embedded parts ≤5mm Supporter installation Appearance Checkout Free from mechanical damage Observation Checkout Bolt fixing Firm Checking with spanner Earthing Firm, in good condition of conduction wrench and conduction Checkout Checking of anticorrosive coating Complete Observation Checkout 1.0.2 See Table 1.0.2 for installation and checkout of sulphur hexafluoride gas-insulated-switchgear major body Table 1.0.2 Installation of Sulphur Hexafluoride Gas-insulated-switchgear Major Body Procedure Checkout item Property Quality criterion Checkout method and instrument Equipment Checkout Combination elements and auxiliaries Complete, free from loss and corrosion Observation Checkout Checkout of insulated parts Clean, free from damping and deformation Checkout of element connection terminal, plug connector and current carrying Smooth and clean, rustless Bolt fastening Complete, free from looseness Supports and grounded lead wires Free from rust and damage Busbars and air chamber cylinder inwall Major Flat, smooth, burr free Element assembly Element surface Clean, impurity-free Observation Checkout Checkout of benzvalene form insulators Clean, free of crack Busbar installation Busbar appearance Clean, free from oxide, scratch and uneven in surface Observation Checkout Strip figure Checkout Major Smooth and clean, free from rust and scratch Checkout of contact pedestals Clean, scratchless Checkout of adsorbents Dry Observation Checkout Flange connection Internal Checkout of elements Major Clean and without sundries Observation Checkout Gasket Checkout Major Intact, clean and free from deformation Checkout of seal grooves and flange faces Major Smooth and clean, free from scars Flange connection Pilot pin is free from block Tightening force moment of attachment bolt Meeting those specified by the manufacturer Checking with torque spanner Checkout of operation machine Operating device stroke Meeting those specified by the manufacturer Checkout according to the manufacturer specifications Driving torque Action of operating devices Major Accurate, reliable Operation test Opening and closing instructions Major Right Interlocking device Major Action is reliable and flexible Observation Checkout Sleeve installation Seal groove and flange surface Major Smooth and clean, free from scratch Observation Checkout Gasket Checkout Major Intact, clean and free from deformation Tightening force moment of attachment bolt Meeting those specified by the manufacturer Checking with torque spanner SF 6 gas filling Checkout of inflation equipment and piping before aeration Clean, free from moisture and oil stains Observation Checkout Circuit-breaker internal vacuum before aeration Major Meeting those specified by the manufacturer Checkout according to the manufacturer specifications Density monitor Alarm and lockup pressure value meeting those specified by the manufacturer SF6 gas moisture content Major Meeting those specified by the manufacturer Check test report SF6 gas pressure Major Density monitor observation Integral sealing test Major Checkout according to the manufacturer specifications Earth wire installation Checkout of earth wire Free from rust and damage Observation Checkout Connecting type Spiro union Connecting bolt Major Fastening Checking with spanner Flange connection of each element Major Bonding is reliable and conduction is in good condition Wrench and conduction Checkout Earthing connection Firm, conduction is in good condition Wrench and conduction Checkout 2 Installation of Hexafluoride Sulfur Circuit Breakers 2.0.1 See Table 2.0.1 for installation and checkout of ferroconcrete prop hexafluoride sulfur circuit breakers

Contents of DL/T 5161.2-2002