Valid

GB 4793.3-2008Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 3: Particular requirements for laboratory equipment for mixing and stirring (English PDF)

Preview PDF

Also coversGB4793.3-2008

This is a limited preview

Buy now to download the full PDF

Need quotation for your management?

Get a formal quotation for GB 4793.3-2008 in 30 minutes.

Issued by

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

Level / Type

National · Mandatory

Issue date

August 30, 2008

Implementation date

September 1, 2009

Scope

GB 4793.3-2008 (Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 3: Particular requirements for laboratory equipment for mixing and stirring) is available as an English-translated PDF.

GB 4793.3-2008 — instead. Replace the entire text with the following. This section applies to the GB 4793 for mechanically mixing and stirring an electric laboratory equipment and accessories, which materials influence the mechanical energy And attachment shape, size and uniformity. Such apparatus may include heating means. NOTE. If the whole or part of the device both are within the scope of this section, and belongs to one or more other partial range GB 4793, then it needs to meet Requirements of other relevant standards in GB 4793. Requirements apparatus having heating means, see GB 4793.6.

Found what you need?

Document preview — GB 4793.3-2008

National Standard of the People's Republic of China

ICS: 19.080
Classification: N 09
Replacing: GB 4793.3-2001

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

And a range of object1
2 Normative References1
Terms and definitions 13
4 Test1
5 Marking and documentation1
6 against electric shock2
7 against mechanical risk2
8 mechanical shock resistance and impact3
9 to prevent the spread of flame3
The temperature limit device 10 and heat3

Foreword

All technical contents of this section is mandatory.

GB 4793 "measurement, control and laboratory safety requirements for electrical equipment" is currently divided into seven parts.

--- Part 1. General requirements (IEC 61010-1);

--- Part 2. Particular electrical measurement and test requirements held and hand operated current sensors (IEC 61010-2-032);

--- Part 3. laboratory mixing and stirring equipment Particular requirements (IEC 61010-2-051);

--- Part 4. Particular requirements for laboratory use (IEC 61010-2-041) Autoclave treatment of medical material;

--- Part 5. Safety electrical measurement and test requirements of the handheld probe assembly (IEC 61010-031);

--- Part 6. Laboratory Particular requirements (IEC 61010-2-010) heating of materials;

--- part 7. Particular requirements for laboratory centrifuges (IEC 61010-2-020).

Note. The name of the section will change with changes in IEC standard names.

This is Part of 3 GB 4793.

This section is equivalent to using IEC 61010-2-051.2005 "2-051 portion of measurement, control and laboratory safety requirements for electrical equipment for

Point. Particular requirements for laboratory mixing and stirring equipment "(in English). Technical content, structure, and expression from the text

IEC 61010-2-051.2005 exactly the same.

For ease of use, the present editorial changes made the following section.

--- with a decimal point "." Instead of a comma as the decimal point "."

--- omitted 61010-2-051 IEC .2005 contents Foreword.

--- For IEC 61010-2-051.2005 references other international standards have been adopted as identical or modified our standards, this

Partially replaced with corresponding international standards of national standards or industry standards; the rest No equivalent or modify adopted as our standard

Quasi-international standards, are directly referenced in this section.

This section is GB 4793.3-2001 "measurement, control and laboratory use with electrical equipment safety laboratory mixing and stirring apparatus

Special requirements "(IEC 61010-2-051.1995, IDT) revision.

This section must be combined GB 4793.1 "measurement, control and laboratory use Part 1 safety requirements for electrical equipment. General Requirements"

Since use. Stated in this section "applicable" portion represents the corresponding strips GB 4793.1 apply to this section; this section states that "place" or

"Edit" section, to show that this part of the article subject; in this section indicate the "increase" portion, in addition to meeting indicate corresponding GB 4793.1

To section, this section must meet the increased strip. In order to distinguish the bar GB 4793.1, this part of the increase in the number of bars 101 open

Beginning, e.g. 7.2.101.

This part of GB 4793.3-2001 have more minor changes, some of the provision was changed in the text, along with a standard structure

GB 4793.1-2007 been adjusted.

This section was proposed by China Machinery Industry Federation.

This part of the jurisdiction of the National measurement, control and electrical equipment Safety Laboratory Standardization Technical Committee (SAC/TC338).

The drafting of this section. of Instrumentation Comprehensive Economic Institute of Technology.

1 Scope and Purpose

Except as follows, GB 4793.1 Chapter 1 apply.

1.1 Scope

instead.

Replace the entire text with the following.

This section applies to the GB 4793 for mechanically mixing and stirring an electric laboratory equipment and accessories, which materials influence the mechanical energy

And attachment shape, size and uniformity. Such apparatus may include heating means.

NOTE. If the whole or part of the device both are within the scope of this section, and belongs to one or more other partial range GB 4793, then it needs to meet

Requirements of other relevant standards in GB 4793. Requirements apparatus having heating means, see GB 4793.6.

2 Normative references

Terms of the following documents constitute provisions of this section by reference in this section 4793 of the GB . For dated references,

All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encouraged to reach an agreement under this section

Whether the parties to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB 4793.1 measurement, control and laboratory use Part 1 safety requirements for electrical equipment. General requirements (GB 4793.1-2007,

IEC 61010-1.2001, IDT)

GB 4793.1 Chapter 2 apply.

3 Terms and Definitions

GB 4793.1 Chapter 3 apply.

4 Test

GB 4793.1 Chapter 4 shall apply.

5 Marking and documentation

Except as follows, GB 4793.1 Chapter 5 are applicable.

5.4.1 Overview

increase.

Note as the original note 1, and 101 add the following note.

101 Note. If a mixer or blender as a handheld device operation may be dangerous, you should have a warning statement for this situation.

5.4.4 operating equipment

increase.

In i) later, add a new entry aa).

aa) if a predetermined part of the stirred vessel and sell hybrid system or if there are other applications, installation instructions stirring vessel.

Add the following new first paragraph after the second paragraph.

GB 4793.3-2008/IEC 61010-2-051.2005

In the description shall be given a warning to prohibit the use of equipment or hazardous use of hazardous materials outside the range of the equipment design.

instead.

Instead of the original second paragraph (now the third paragraph) with the following.

Should let users know if the equipment is not provided or recommended by the manufacturer of the accessory, or not in accordance with the manner specified by the manufacturer

Equipment, the protection provided by the equipment might be reduced.

6 against electric shock

GB 4793.1 Chapter 6 apply.

7 against mechanical hazard

Except as follows, GB 4793.1 Chapter 7 are applicable.

instead.

7.2 Moving parts

Instead of the second segment in the second row with the following "Example. drilling equipment and mixing equipment".

For example. down cutting Ye Lun shaft and stirring the kneading material.

Add the following article.

7.2.101 speed controller

If the single failure of the electronic speed control can cause danger, the equipment should provide a method of preventing a power loss or other hazard.

By visual inspection and testing to verify eligibility.

Moving operation 7.2.102

You should not change in normal use position of the device.

By visual inspection and testing to verify eligibility. After 10min mobile devices running distance of not more than 5mm, can be considered to meet

This requirement.

7.2.103 restart after interruption

Depending on the application, the mixing process is restarted after an interruption or restart may be dangerous. Equipment in response to the power grid

And whether to restart after a power failure will be explained in the case of failure or mechanical suspension.

Note. In some cases, there should be a visual or audible alarm to warn of disruptions occur.

By examining the documents to verify eligibility.

7.2.104 dangerous application-related

Dangerous cause cracking may occur when the device for mixing the combustible material, or transferred to a glass container occurs mechanical energy

Danger.

The instructions shall prohibit the use of warning devices in these applications, the danger to prevent a single fault condition unless the device is installed

Respective safety device. Such safety devices should be independent of the control system.

Example safety hazard and a corresponding device is as follows.

a) In the mixing operation failure may be dangerous, such as a metal organic chemical reaction, the safety device should start the alarm signal is.

1) When the mixer or mixers can not rotate if the drive shaft; or

2) When the rotational speed of the shaft due to overload is below a predetermined rotational speed.

Note 1. The shortage of power, or may decrease the device automatically starts when the shaft speed speed reduction caused by overload.

b) applying an excessive torque to the high viscosity material may be dangerous, such as glass breakage occurs. If the torque exceeds a preset level, security

Full warning signal means should be started.

Note 2. It is recommended safety devices work in accordance with the principle of the residual current.

By visual inspection and testing to verify eligibility.

GB 4793.3-2008/IEC 61010-2-051.2005

8 mechanical shock resistance and impact

Chapter 8 GB 4793.1 apply.

9 to prevent the spread of flame

GB 4793.1 Chapter 9 apply.

The temperature limit device 10 and heat

GB 4793.1 Chapter 10 are applicable.

11 Anti-dangerous fluid

In addition to the following conditions, GB 4793.1 Chapter 11 are applicable.

Add the following article.

11.101 conduit connecting hose

The connector should be designed so that the hose can not be releasable, for example using a hose clamp, and the catheter should be sufficiently secured.

By visual inspection to verify eligibility.

12 radiation (including laser light source), an acoustic and ultrasonic pressure

GB 4793.1 Chapter 12 apply.

13 pairs of released gases, explosion and implosion protection

In addition to the following conditions, GB 4793.1 Chapter 13 are applicable.

Add the following article.

13.2.101 explosion and implosion protection

Depending on the type, location and mode of operation, proof, or device designed for use with explosive should meet the IEC and ISO

The relevant requirements of the standard.

By tested according to relevant standards to verify eligibility.

14 components

GB 4793.1 Chapter 14 apply.

15 with the protective interlock

GB 4793.1 Chapter 15 are applicable.

Test and measurement equipment 16

Chapter 16 GB 4793.1 apply.

GB 4793.3-2008/IEC 61010-2-051.2005

appendix

GB 4793.1 Appendix apply.

GB 4793.3-2008/IEC 61010-2-051.2005

references

Except for the following content, GB 4793.1 references apply.

increase.

GB 4793.6 measurement, control, and laboratory safety requirements for electrical equipment with Part 6. Laboratory special heating equipment material

Requirements (GB 4793.6-2008, IEC 61010-2-010.2005, IDT).

GB 4793.3-2008/IEC 61010-2-051.2005

END: Draft Version (GB 4793.3-2008)

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

GB 4793.1 · GB 4793.1-2007 · IEC 61010

How to Download GB 4793.3-2008

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.