GB 50055-2011
Code for design of electric distribution of general-purpose utilization equipment (English Version)

Standard No.

GB 50055-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 50055-2011

Replace

GB 50055-1993

Scope

This code is applicable to the power distribution design of the following general-purpose electrical equipment: 1 General-purpose motors with rated power greater than or equal to 0.55kW. 2 Electric bridge cranes, electric girder cranes, gantry cranes and electric hoists; belt conveyor transportation lines, electric-driven indoor elevators and escalators with a load greater than 300kg. 3 Arc welding machines, resistance welding machines and electroslag welding machines. 4 DC power supply equipment for electroplating. 5 Charging devices for lead-acid batteries for traction, lead-acid batteries for starting, fixed valve-regulated sealed lead-acid batteries and nickel-cadmium batteries. 6. The power supply unit of electrostatic filters such as dust removal and tar removal with a DC voltage of 40kV ~ 80kV. 7 Indoor household electrical appliances.

GB 50055-2011 Referenced Document

• GB 14048.6 Low-voltage switchgear and controlgear.Part 4-2:Contactors and motor-starters.AC semiconductor motor controllers and starters(including soft-starter)
• GB 16895.1 Electrical installations of buildings. Part 1: Scope, object and fundamental principles
• GB 16895.11 Electrical installations of buildings Part 4: Protection for safety,Chapter 44: Protection against overvoltages Section 442-Protection of low-voltage installations against temporary overvoltages and faults beween high-voltage systems and earth
• GB 16895.12 Electrical installations of buildings Part 4: Protection for safety Chapter 44: Protection against overvoltages Section 443: Protection against overvoltages of atmospheric origin or due to switching
• GB 16895.13 Low-voltage electrical installations.Part 7-701:Requirements for special installations or locations.Locations containing a bath or shower*， 2012-06-29 Update
• GB 16895.14 Electrical installations of buildings.Part 7-703:Requirements for special installations or locations.Rooms and cabins containing sauna heaters
• GB 16895.19 Electrical installations of buildings Part 7: Requirements for special installations or locations Section 702: Swimming pools and other basins
• GB 16895.2 Electrical installations of buildings.Part 4-42:Protection for safety.Protection against thermal effects
• GB 16895.20 Electrical installations of buildings Part 5: Selection and erection of electrical equipment Chapter 55: Other equipment Section 551: Low-voltage generating sets
• GB 16895.21 Low-voltage electrical installations.Part 4-41:Protection for safety.Protection against electric shock*， 2011-12-30 Update
• GB 16895.22 Electrical installations of buildings Part 5-53:Selection and erection of electrical equipment isolation,switching and control Section 534:Devices for protection against overvoltages
• GB 16895.24 Electrical installations of buildings.Part 7-710:Requirements for special installations or locations.Medical locations
• GB 16895.25 Electrical installations of buildings.Part 7-711:Requirements for special installations or locations.Exhibitions,shows and stands
• GB 16895.26 Electrical installations of buildings.Part 7-740:Requirements for special installations or locations.structures,amusement devices and booths at fairgrounds,amusement parks and circuses
• GB 16895.27 Low-voltage electrical installations.Part 7-705:Requirements for special installations or locations.Agricultural and horticultural premises*， 2012-06-29 Update
• GB 16895.28 Electrical installations of buildings.Part 7-714:Requirements for special installations or locations.External lighting installations
• GB 16895.29 Electrical installations of buildings.Part 7-713:Requirements for special installations or locations.Furniture
• GB 16895.3 Electrical installations of buildings--Part 5-54:Selection and erection of electrical equipment-Earthing arrangements,protective conductors and protective bonding conductors
• GB 16895.30 Electrical installations of buildings.Part 7-715:Requirements for special installations or locations.Extra-low-voltae lighting installations
• GB 16895.31 Electrical installations of buildings.Part 7-717：Requirements for special installations or locations.Mobile or transportable units
• GB 16895.4 Electrical installations of buildings Part 4: Protection for safety Chapter 43: Protection against overcurrent
• GB 16895.5 Low-voltage electrical installations.Part 4-43 Protection for safety.Protection against overcurrent*， 2012-06-29 Update
• GB 16895.6 Electric installations of buildings-Part 5: Selection and erection of electrical equipment-Chapter 52: Wiring systems
• GB 16895.7 Low-voltage electrial installatioins.Part 7-704:Requuirements for special installations or locations.Construction and demolition site installations
• GB 16895.8 Low-voltage eletrical installations.Part 7-706:Requirements for special installations or locations.Conducting locations with restricted movement
• GB 50016 Architectural design code for fire protection
• GB 50045 Code for fire protection design of tall building
• GB 50052 Code for design electric power supply system
• GB 50054 Code for design of low voltage electrical installations
• GB 50060 Code for design of high voltage electrical installation(3～110kV)
• GB 50140 Code for design of extinguisher distribution in buildings (explanation)
• GB/T 50062 Code for design of relaying protection and automatic device of electric power installations
• GB/T 50065 Code for design of ac electrical installations earthing*， 2011-12-05 Update

GB 50055-2011 history

• 2011 GB 50055-2011 Code for design of electric distribution of general-purpose utilization equipment
• 1993 GB 50055-1993 Code for design of electric distribution of general-purpose utilization equipment