JB/T 2729-2020 in English

VALID

Three-phase four-pole plug and socket for AC mobile power station

Issued on:2020-04-16
Implemented on:2021-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $250.00
$243.00

Standard No:	JB/T 2729-2020
Document status:	VALID
Title in English:	Three-phase four-pole plug and socket for AC mobile power station
Title in Chinese:	交流移动电站用三相四极插头插座
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-04-16
Implemented on:	2021-01-01
Superseding:	JB/T 2729-1999 3 phases 4 wires plug & socket for AC movable power plant
Professional Classification:	JB-Machinery
Related Keywords:	mobile power station mobile power station introduction analysis vehicle-mounted power station project three-phase four-pole plug damp heat ≥5mω enhance
Related Topics:	Three-electrode working electrode triple quadrupole power station mobile phase flow quadrupole Use of three electrodes mobile phase for c3 column mobile phase head Three-electrode power supply How to use the three electrode system Three Electrode Capacitor Four parallel relative ranges Three-electrode self-discharge Standard three electrodes electric quadrupole Three-electrode working electrode Three electrode use Three working electrodes Three-electrode working electrode mobile phase base Three-electrode system working electrode Three electrode work Three electrodes + capacitor Substance mobile phase Three-electrode measurement Two-electrode and three-electrode relative voltage Three Electrode Mold mobile phase head pe triple quadrupole Three-electrode current measurement Normal Phase Detection Mobile Phase mobile phase + base mobile phase + head Four parallel range relative How to mix the three mobile phases Three-electrode two-point pole current Three Electrode System water column mobile phase water mobile phase mobile phase protocol base mobile phase Relative value of quartic range How long is the mobile phase Three hole socket mobile phase water phase aqueous polar phase mobile phase positive and negative phase three electrode discharge triple quadrupole single quadrupole mobile phase is hot mobile phase mobile phase interaction triple tetrode mobile phase mobile phase mobile phase a and mobile phase b Three-electrode charging three from quadrupole mobile phase interaction The role of mobile phase electric quadrupole well Three-phase four-wire gas test mobile phase three-point quadrupole Three head automatic Mobile Phase Quaternary Pump Three-electrode system working electrode Three strings of four mobile phase is organic three electrode discharge mobile phase use mobile phase a and mobile phase b three-pole four-bar linkage The role of three electrodes mobile phase organic phase ph Two-electrode method and three-electrode method Three-electrode working electrode voltage window Three-phase four-wire current Quaternary pump mobile phase Three-electrode composite electrode Which stage of a triple quadrupole Three classification electrodes How to design four mobile phases Three Electrode Capacitor iec socket plug Thermo triple quad normal phase + reverse phase + mobile phase c4 column mobile phase Three-core power socket c4 column mobile phase plug socket plug socket Three-phase ammeter How many days does the salty mobile phase last? mobile phase acidity HAA mobile phase Changing the mobile phase polarity Braking method of three-phase AC motor

本标准规定了用往复式内燃机驱动交流工频(50Hz)、中频(400Hz）、双频（50Hz、400Hz）发电机的内燃机移动电站（含汽车电站、挂车电站、方舱电站、自发电电站、发电机组，以下均简称为移动电站）用三相四极插头插座的技术要求、试验项目和方法、检验规则、标志、包装、运输和贮存等。
本标准适用于额定电压不高于500 V，额定电流不高于315 A，额定频率为50Hz和400Hz的移动电站用插头和插座。60Hz移动电站用插头和插座可参照使用。

Introduction

Analysis of the core content of the standard

Technical indicators	1999 edition	2020 edition	Improvement points
Rated current range	25-200A	16-315A	New series II specifications
Insulation resistance	Indicator after damp heat is not clear	After damp heat ≥5MΩ	Enhance environmental adaptability requirements
Mechanical life	Uniform 1000 times	Graded setting (500-1000 times)	Differentiation by current level

Detailed explanation of key technical requirements

4.1 Structural safety

The design of plugs and sockets must ensure reliable connection of the mobile power station under harsh working conditions such as vibration and impact. The conductive parts must be made of copper alloy (copper content ≥58%), and the casing protection level must reach IP54.

4.7 Contact resistance control

Application case: A vehicle-mounted power station project uses a 100A plug and socket, with the measured contact resistance of 2.1×10^-4Ω, which is 5% lower than the standard value, effectively reducing the temperature rise of the connection point.

Analysis of Standard Evolution

Compared with JB/T 2729-1999, this standard has the following major improvements:

Added dual-frequency (50/400Hz) applicability
Refined inspection classification (factory/type/identification inspection)
Added special requirements for transportation and storage

Implementation Suggestions

Give priority to models with anti-misplugging structure when selecting
Regularly check the extraction force parameters (it is recommended to test after every 500 plugging and unplugging)
Temperature correction is required in high altitude areas according to Clause 4.3.2

More samples: GB 50021-2001(2009) DL/T 368-2010 JC/T 2453-2018

Sample only — not a preview of JB/T 2729-2020

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