SN/T 1431.4-2011Rules for the inspection of low-voltage electrical apparatus for import and export. Part 4: Low-voltage electromechnical contactors and motor starters installations (English PDF)

Foreword

SN/T 1431 "Importers and low-voltage electrical inspection procedures" series of standards is divided into five parts.

--- Part 1. General requirements;

--- Part 2. Household and similar circuit breakers for overcurrent protection;

--- Part 3. Household and similar residual current operated circuit breaker;

--- Part 4. Electromechanical contactors and motor starters;

--- Part 5. low voltage fuses.

This is Part 4 SN/T 1431 "Importers and low-voltage electrical inspection procedures" series of standards.

This section based on GB/T 1.1-2009 write drafted.

Some of this section may involve patents, this part of the release mechanism does not assume the responsibility to identify these patents.

The partial replacement of SN/T 1029-2001, compared with the SN/T 1029-2001 The main changes are as follows.

--- Examine the contents of the deleted original packaging inspection procedures, interlocking mechanism, shape and installation, manual inspection, visual inspection section content;

--- Increasing the consistency test items;

--- Modify the flag checking content, range of motion testing different products into one project;

--- Table 2. visual inspection of the surface of the product failed to Category B;

--- Increased content inspection and supervision mode and test mode.

This section proposed and managed by the National Certification and Accreditation Administration Committee.

This section drafted by. People's Republic of China Zhejiang Exit Inspection and Quarantine.

Introduction

"Importers and low-voltage electrical inspection of" low-voltage electrical products import and export inspection work basis, import and export of low-voltage electrical products Inspection play a guiding and regulating.

With China's accession to the World Trade Organization (WTO) and the revised "People's Republic of China Import and Export Commodity Inspection Law" Import and Export Commodity Inspection Test mode has undergone great change, to adapt to changes in the situation and to meet the actual needs of inspection and quarantine work, Inspection and Quarantine of the competent Inspection and quarantine departments to establish a standard system.

This part belongs to the standard system of inspection and quarantine fourth floor --- personality standard that specifies the import and export of electromechanical contactors and motor starters Inspection requirements.

Low-voltage electrical inspection of import and export Part 4. Electromechanical contactors and motor starters

1 Scope

This section provides import and export electromechanical contactors and motor starters sampling, testing and the results of determination.

This section applies to the main contacts rated voltage not exceeding 1000V AC or DC does not exceed 1500V electromechanical contactors and motor Inspection machine starter.

This section does not apply to product testing.

--- DC starter;

--- Special use and continuous operation in the starting position of the star - delta starters, rheostatic rotor starter auto decompression and two from Actuators;

--- Unbalanced rheostatic rotor starter;

--- Not only for start-up and for the governor of the starter;

--- Liquid starter and "liquid - vapor" starter;

--- Semiconductor contactors and semiconductor contactors in the main circuit of the starter;

--- The stator rheostatic starter;

--- Special purpose contactors and starters;

Auxiliary contacts and contactor relay contacts --- contactor.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 2828.1-2003 Sampling procedures for inspection - Part 1. Press to accept the quality limit (AQL) retrieval batch test sample Programme (ISO 2859-1:1999, IDT) GB/T 2900.18-2008 Electrotechnical term low-voltage electrical GB 14048.1-2006 Low-voltage switchgear and control equipment Part 1. General (IEC 60947-1:2001, MOD) GB 14048.4-2003 Low-voltage switchgear and control equipment, electromechanical contactors and motor starters (IEC 60947-4-1.

2000, IDT)

The basic provisions of SN/T 0002 Electromechanical Import and Export Commodity Inspection procedures prepared

3 Terms and Definitions

GB/T 2828.1-2003, GB/T 2900.18-2008, GB 14048.1-2006, GB 14048.4-2003 and SN/T 0002 boundary and given the following terms and definitions apply to this document.

Sampling mode modeofsamplinginspection According to the mandatory requirements of national technical specifications, batch import and export commodities or pumping grant implementation sampling, testing and inspection of conformity assessment activities.