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GB/T 14048.8-2016 English PDF

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GB/T 14048.8-2016: Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment -- Protective conductor terminal blocks for copper conductors
Status: Valid

GB/T 14048.8: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14048.8-2016English319 Add to Cart 3 days [Need to translate] Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment -- Protective conductor terminal blocks for copper conductors Valid GB/T 14048.8-2016
GB/T 14048.8-2006English599 Add to Cart 3 days [Need to translate] Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment -- Protective conductor terminal blocks for copper conductors Obsolete GB/T 14048.8-2006
GB 14048.8-1998English559 Add to Cart 4 days [Need to translate] Low-voltage switchgear and controlgear. Ancillary equipment. Section 2: Protective conductor terminal blocks for copper conductors Obsolete GB 14048.8-1998

PDF similar to GB/T 14048.8-2016


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Basic data

Standard ID GB/T 14048.8-2016 (GB/T14048.8-2016)
Description (Translated English) Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment -- Protective conductor terminal blocks for copper conductors
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K30
Classification of International Standard 29.130.20
Word Count Estimation 16,180
Date of Issue 2016-04-25
Date of Implementation 2016-11-01
Older Standard (superseded by this standard) GB/T 14048.8-2006
Quoted Standard GB 7251.1-2013; GB 14048.1-2012; GB/T 14048.7-2016; GB/T 19334-2003
Adopted Standard IEC 60947-7-2-2009
Regulation (derived from) National Standard Announcement No
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the requirements for protective conductor terminal blocks for screw-type or non-threaded clamping devices, mainly for industrial use, with a terminal block for PE protection of not more than 120 mm2 (250 kcmil), with PEN protection The terminal block is greater than or equal to 10 mm2 (AWG 8). The protective conductor terminal block is used for the electrical and mechanical connection between the copper conductor and the mounting bracket. This standard is applicable to the protection of prefabricated or non-prefabricated round copper conductors with a cross-sectional area of ??0.2 mm2 to 120 mm2 (AWG 24 kcmil to 250 kcmil) in an AC circuit with a rated voltage not exceeding 1000 V, a frequency up to 1000 Hz and a DC circuit not exceeding 1500 V conductor

GB/T 14048.8-2016: Low-voltage switchgear and controlgear -- Part 7-2: Ancillary equipment -- Protective conductor terminal blocks for copper conductors


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Low-voltage switchgear and controlgear.Part 7-2. Ancillary equipment.Protective conductor terminal blocks for the ICS 29.130.20 K30 National Standards of People's Republic of China Replace GB/T 14048.8-2006 Low voltage switchgear and control equipment Part 7-2. auxiliary devices for copper conductors Protection of conductor terminal blocks Part 7-2. Ancilaryequipment-Protectiveconductorterminal (IEC 60947-7-2..2009, MOD) 2016-04-25 release.2016-11-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface I Basic requirements 1 2 Definition 1 Category 3 4 Features 2 5 Product information 3 6 normal use, installation and transportation conditions 4 Structural requirements and performance requirements 8 Test 5 The maximum short-time withstand current of the mounting rail specified in Appendix A (normative) and the rated heating current of the PEN bus 11

Foreword

GB 14048 "Low-voltage switchgear and control equipment" is divided into the following 21 parts. - Part 1. General; - Part 2. Circuit breakers; - Part 3. switch, isolator, disconnector and fuse combination; - Part 4-1. Contactors and motor starters Electromechanical contactors and motor starters (including motor protector); - Part 4-2. Contactors and motor starters - AC semiconductor motor controllers and starters (including soft starters); - Part 4-3. Contactors and motor starters - AC semiconductor controllers and contactors for non - motor loads; - Part 5-1 Control circuit Electrical and switching elements Electromechanical control circuit appliances; - Part 5-2. Control circuit appliances and switching element proximity switches; - Part 5-3. Control circuit electronics and switching elements - Proximity switches (PDF) with definite function under fault conditions Claim; - Part 5-4. Control circuit appliances and switching elements - Evaluation of performance of small capacity contacts - Special tests; - Part 5-5. Control circuit appliances and switching elements - Electrical emergency braking devices with mechanical latch function; - Part 5-6. Control circuit appliances and switching elements - DC interface (NAMUR) for proximity sensors and switching amplifiers; - Part 5-7. Control circuit appliances and switching elements for approaching equipment with analog outputs; - Part 5-8. Control circuit appliances and switching elements - Three enable switches; - Part 5-9. Control circuit appliances and switching element flow switches; - Part 6-1. Multifunctional electrical switchgear; - Part 6-2. Multifunctional electrical appliances (equipment) control and protection switchgear (equipment) (CPS); - Part 7-1. Terminal blocks for auxiliary devices for copper conductors; - Part 7-2. Protective devices - Protection conductors for copper conductors - Terminal blocks; - Part 7-3. Safety requirements for auxiliary device fuses terminal blocks; - Part 8. Loaded thermal protection (PTC) control unit for rotating electrical machines. This section is part 7-2 of the GB 14048 "Low Voltage Switchgear and Controlgear". This part is drafted in accordance with the rules given in GB/T 1.1-2009. Replacement of GB/T 14048.8-2006 "Low-voltage switchgear and controlgear - Part 7-2. Supplementary devices for copper conductors Protection conductor terminal block ". The technical differences between this part and GB/T 14048.8-2006 are. --- 8.3.3.1 "Clamping parts mechanical strength test" delete paragraph 2 and paragraph 4 of the content; - 8.4.5 "Temperature rise test" The connection of the conductor in paragraph 4 and the bracket shall be carried out in accordance with Table B.1 (for thread diameter less than or equal to In the 2.8mm screw-type clamping parts) and GB 14048.1-2006 in Table 4, the torque specified by the manufacturer or the larger Torque value "to" conductor connection and bracket connection should be in accordance with GB 14048.1-2012 in Table 4 of the tightening torque or Manufacturer specified higher torque value "; --- 8.4.6 "Short-time withstand current test" in paragraph 2 "tightening torque according to GB 14048.1-2006 in Table 4 or Appendix B Table B.1 (for threaded clamps with thread diameters less than or equal to 2.8 mm) or specified by the manufacturer for larger torques Value "to" tightening torque according to the provisions of Table 4 of GB 14048.1-2012 or the manufacturer specified higher torque value "; - Delete Appendix B (Normative Appendix). Tightening torque used to verify the mechanical strength of threaded clamps. This part is modified using IEC 60947-7-2..2009 (version 3.0) "Low-voltage switchgear and controlgear Part 7-2. Auxiliary devices Pieces of copper conductor to protect the conductor terminal block ". The technical differences between this section and IEC 60947-7-2..2009 are as follows. --- according to China's actual, the scope of application increased AC rated voltage 1140V appliances; --- GB 14048.1-2012 "Low-voltage switchgear and controlgear Part 1. General" (IEC 60947-1..2011, MOD) instead of the reference document IEC 60947-1..2007; --- GB/T 14048.7-2016 "Low-voltage switchgear and controlgear - Part 7-1. Connection of auxiliary devices for copper conductors Terminal block "(IEC 60947-7-1..2009, MOD) instead of reference document IEC 60947-7-1; --- According to China's environmental and material requirements, supplemented the provisions of the relevant requirements of wet and heat and its test methods; --- For ease of understanding, note 3 is added to Definition 2.1 "Protective conductor terminal block". This part is made by China Electrical Equipment Industry Association. This part of the national low-voltage electrical appliances Standardization Technical Committee (SAC/TC189) centralized. This part is responsible for the drafting unit. Shanghai Electric Research Institute. This part participates in the drafting unit. Weidmüller Electric (Shanghai) Co., Ltd., Phoenix China Investment Co., Ltd., Shanghai Electric Appliance Equipment testing. The main drafters of this part. Zhang Lili, Huang Jingye, Wu Qingyun, Wang Chengping, Zhu Shiming, Sun Jinfeng. This part of the previous version of the standard to replace the release of the situation. --- GB 14048.8-1998, GB/T 14048.8-2006. Low voltage switchgear and control equipment Part 7-2. auxiliary devices for copper conductors Protection of conductor terminal blocks

1 basic requirements

1.1 Scope This part of GB 14048 specifies the protection conductor terminal blocks for screw-type or non-threaded clamps that are primarily intended for use in industry. Request, with PE protection function of the terminal block is not greater than 120mm2 (250kcmil), with PEN protection function of the terminal block Or equal to 10mm2 (AWG8). Note. AWG is an abbreviation for "American Wire Gauge". kcmil = 1000cmil 1cmil = 1 round ear = diameter 1 mil round area 1mil = 1/1000 inch. The protective conductor terminal block is used for electrical and mechanical connections between the copper conductor and the mounting bracket. This part applies to the rated voltage of not more than 1000V1), the frequency of 1000Hz AC circuit and not more than 1500V DC Circuit with a cross-sectional area of 0.2mm2 ~ 120mm2 (AWG24kcmil ~ 250kcmil) prefabricated or non-preformed copper conductor The conductor terminal block, the protective conductor terminal block, and the terminal block specified in GB/T 14048.7-2016 are normally used together. 1) AC rated voltage 1140V electrical appliances can refer to this part of the implementation. The requirements for electrical performance and other requirements are determined by the manufacturer and the user. The following products may use this section as a guide. - the need to install a special device on the conductor to protect the conductor terminal block, such as quick connect end or connection connection; - through the edge or tip piercing the insulation to achieve direct contact with the conductor conductor terminal block, such as insulation transfer even And so on. When quoting GB 14048.1-2012, this section substitutes the term "clamping part" instead of "terminal". 1.2 Normative references The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB 7251.1-2013 Low voltage switchgear and controlgear - Part 1. General (IEC 61439-1..2011, IDT) GB 14048.1-2012 Low - voltage switchgear and controlgear - Part 1. General (IEC 60947-1..2011, MOD) GB/T 14048.7-2016 Low voltage switchgear and controlgear - Part 7-1. Secondary devices - Terminal blocks for copper conductors (IEC 60947-7-1..2009, MOD) GB/T 19334-2003 The size of low-voltage switchgear and control equipment in the complete sets of switchgear and control equipment for electrical equipment Standard mounting rail for rail support (IEC 60715. 1981, IDT)

2 definition

The following terms and definitions, as defined in GB/T 14048.7-2016 and the following terms and definitions, apply to this document.

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