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Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 7: Particular requirements for laboratory centrifuges
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GB 4793.7-2008: Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 7: Particular requirements for laboratory centrifuges
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Safety requirements for electrical equipment for measurement, control, and laboratory use.Part 7.Particular requirements for laboratory centrifuges
ICS 19.080
N09
National Standards of People's Republic of China
GB 4793.7-2008/IEC 61010-2-020.2006
Replacing GB 4793.7-2001
Measurement, control and laboratory use electrical equipment
Safety requirements - Part 7.Laboratory centrifuges
Special requirements
(IEC 61010-2-020.2006, IDT)
Published 2008-08-30
2009-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Preface Ⅰ
And a range of object 1
2 Normative References 1
2 3 Definitions
4 Test 3
5 Marking and documentation 3
6 5 against electric shock
5 against mechanical risk 7
8 mechanical shock resistance and impact 10
9 to prevent the spread of flame 10
The temperature limit device 10 and heat 10
11 fluid-risk 10
12 radiation (including laser light source), an acoustic and ultrasonic pressure 11
13 pairs of released gases, explosion and implosion protection 11
14 12 Components
Protection device chain 1215 using
Test 16 and measuring device 12
Appendix 13
Dynamic Test Method Microbial Annex AA (normative) seal ring 13
General guidelines Appendix BB (informative) of the special terms and basic principles 16
Reference 19
GB 4793.7-2008/IEC 61010-2-020.2006
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 7 GB 4793's.
This section is equivalent to using 61010-2-020 IEC.2006 "measurement, laboratory control and the second section 2-020 Safety requirements for electrical equipment
Points. Particular requirements for laboratory "with centrifuges (in English). Technical content, structure, and text expressions and IEC 61010-2-020.
2006 exactly the same. For ease of use, the present editorial changes made the following section.
"." --- replaced by a decimal decimal comma ",";
--- omitted IEC 61010-2-020.2006 contents Foreword and "Appendix H (informative) defined Index";
--- For IEC 61010-2-020.2006 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 4793.7-2001 "measurement, control and laboratory centrifuge for special electrical safety laboratory equipment
Seeking ". Revision (IEC 61010-2-020 1992, IDT) is.
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. 3.1.101, this part of the increase in Appendix begin with AA, AA e.g. Appendices, Appendix BB.
This part of GB 4793.7-2001 have more major changes. many of the provisions in the text has been modified, with a standard structure
GB 4793.1-2007 were adjusted for a number of test methods to do a more detailed explanation.
--- Test Method rotating assembly of moving parts;
--- protection method of scattering or ejection of parts parts;
--- Test Method for preventing dangerous part of the fluid and the freezing of the water-cooled laboratory centrifuge;
--- dynamic seal microbiological testing methods.
Appendix AA in this section are normative, Appendix BB is an informative annex.
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.
The main drafters of this section. Liu Xiaojing, Zhang Guiling, Mei Ke, Zheng Xu, Wang Linkun, Pan Changqing, Ouyang Jinsong, when FANG Xiao, Wang Jianhua.
This section replaces the following previously issued as follows.
--- GB 4793.7-2001.
GB 4793.7-2008/IEC 61010-2-020.2006
Measurement, control and laboratory safety requirements for electrical equipment
Part 7.Particular requirements for laboratory centrifuges
1 Scope and Purpose
Except as follows, GB 4793.1 Chapter 1 apply.
1.1 Scope
instead.
This section GB 4793 applies to electric laboratory centrifuge.
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.
1.1.2 within the scope of this section does not include
increase.
Add the following entry.
aa) IEC 60034 (rotary electric machine);
1.2 Purpose
Aspects of the contents within the scope of this 1.2.1
increase.
Add the following entry.
aa) in contact with the moving parts (see 7.2);
bb) mobile laboratory centrifuge at breakage (see 7.3.101);
cc) after breakage of rotor energetic chemical reaction [see 7.6.101.21)];
dd) ring failure (see 13.101).
1.2.2 aspects of the content within the scope of this section does not include
increase.
Add the following entry.
aa) separation of flammable or explosive material should be subject to additional precaution (see 5.4.101);
bb) a chemical reaction and separation can occur when the resulting large amount of gas hazardous materials subject to additional precautions initiator (see
5.4.101).
1.4 Environmental conditions
1.4.1 normal environmental conditions
modify.
The c) the content modification as follows.
c) at a temperature of 2 ℃ ~ 40 ℃;
1.4.2 Extended environmental conditions
modify.
The c) the content modification as follows.
c) ambient temperature is below or higher than 2 ℃ 40 ℃;
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,
GB 4793.7-2008/IEC 61010-2-020.2006
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)
Except as follows, GB 4793.1 Chapter 2 apply.
increase.
ISO 3864 (all parts) color and graphical symbols Safety Safety symbol
3 Terms and Definitions
Except as follows, GB 4793.1 Chapter 3 are applicable.
Category 3.1 equipment and devices
increase.
Add the following three new definitions.
3.1.101
Laboratory centrifugation may be applied to the sample material by the instrument.
3.1.102
To simultaneously operate a laboratory centrifuge and the rotating assembly simultaneously identified.
3.1.103
Or a portion thereof rotating assembly or separation failure in the event of rotation.
3.2 Parts and Accessories
increase.
Add the following eight new definition.
3.2.101
Enclosed space in the laboratory centrifuge rotating components rotate therein.
3.2.102
The basic components of a laboratory centrifuge, which carries the raw material by centrifugal force and is rotated under control of the drive system.
3.2.103
Assembled rotor assembly for supporting one or more tubes.
3.2.104
Completely encloses the rotating assembly cover, and the cover comprises fastening means.
3.2.105
Inlet centrifugal chamber lid.
3.2.106
Turned specified by the manufacturer with a head attachment.
GB 4793.7-2008/IEC 61010-2-020.2006
NOTE. In the above, the accessory comprising a rotor carrying a sample of the centrifuge rotor for use with all, or parts used in the centrifuge rotor, comprising
Adapter, tubes and bottles.
3.2.107
Centrifuge to provide a torque or rotational component to provide rotational support of all components.
3.2.108
A device or mechanisms, or may be attached between the basket with the closure head means designed to prevent leakage of material, e.g. centrifuged
Process of microbiological material.
3.5 Safety Terms
increase.
Add the following two new definitions.
3.5.101
Laboratory centrifuges to ensure safety around the space required.
3.5.102
A worst artificial selection of representative test conditions for evaluating a centrifuge - rotor combinations inherent mechanical safety (see
7.6 and Appendix BB).
4 Test
Except as follows, GB 4793.1 Chapter 4 are applicable.
4.3.1 Environmental conditions
increase.
Add the following new Note.
Note. because of condensation (see 11.101), so it should take into account the predetermined maximum humidity in 1.4.1d) and 1.4.2d) after cooling operation of the centrifuge.
5 Marking and documentation
Except as follows, GB 4793.1 Chapter 5 are applicable.
5.1.2 logo
modify.
The b) the content modification as follows.
b) serial number or other methods to identify the production lot of equipment.
increase.
Add a new article.
5.1.101 turned around and accessories
All replacement by an operator and the rotating head assembly, comprising a rotor attachment shall identify the manufacturer or supplier name or registrar
Landmarks and identifiers.
If a component is too small or unsuitable for labeling, the required information shall be marked on the original packaging, at the same time stated in the document.
Note 1.A container or package may be within the outer packaging.
Note 2.Each head shall identify the serial number, or other methods, in order to uniquely identify the product lot number.
Note 3.The manufacturer shall specify the individual parts, such as a basket, for balancing or other reasons, should only be fitted or turned in a particular rotor in a particular position. should
Denote the corresponding numbers or letters to identify each gondola and rotor position.
Note 4.rotor accessory sets designed to be used, such as the weight, should have an identifying mark belong.
GB 4793.7-2008/IEC 61010-2-020.2006
By visual inspection to verify eligibility.
5.4.2 Equipment ratings
increase.
Add the following entry.
aa) Laboratory centrifuges dedicated all turned around, turned around and accessories and their nominal rotational frequency of inventory;
bb) any restrictions prohibiting manufacturer warning separated particular material;
cc) and rotating assembly loading instructions load shedding instructions (if applicable) and the volume density limit.
5.4.3 Equipment Installation
increase.
In a) later, add the following five sub-items.
1) safety space required for the intended use of the floor area or table (see 7.3.101);
Note. 7.3.101 specifies the maximum distance allowed in a laboratory centrifuge breakage event moved to 300mm, so the manufacturer's instructions shall require the use of
Those around the centrifuge marked out of this range, or be made the following requirements in laboratory management program, when a laboratory centrifuge work within this range
It was not, or any dangerous substances.
2) The total weight of the centrifuge;
3) Description of site preparation;
4) centrifuge leveling method;
5) fixedly mounting surface;
5.4.4 operating equipment
increase.
Add the following entry.
aa) to mount and balance.
bb) turned around and exchange programs.
cc) a predetermined stage in the separation process, the operator has the specific requirements in the field.
dd) personnel necessary safety measures, for example, instructions comprising.
--- not leaning on laboratory centrifuge;
--- stay in the safe space of time must not exceed the time necessary for operational reasons;
--- a safe space not place any potentially hazardous materials;
--- open the lid during the process of safe methods of operation (see 7.2.102.2).
ee) Instructions and other biological protection ring housing parts, comprising a suitable sealing techniques. Specification should the operator
Clear, seals and related parts constitute only part of the biological protective shell system (see domestic and foreign biological protection guide
It), when the processing which harmful microorganisms can not rely only way as to protect workers and the environment.
5.4.5 maintenance equipment
increase.
Note the original paragraph 1 as note 1, add a new paragraph 2 and Note 2 below.
If applicable, instructions for use should be noted.
aa) test apparatus and method for fixedly mounting surface of the mounting surface condition itself;
bb) safety measures during the cleaning operator;
cc) test of the protective cover;
dd) rotating inspection and safety assembly;
ee) Check the continuity of the connection protected;
ff) the frequency of inspection and other biological protection ring housing parts and replacement methods.
Note 2.The instructions should be clear that the operator, in accordance with the instructions for regular maintenance seals and other components for biological protective shell to ensure its long-term security
Use is very important.
GB 4793.7-2008/IEC 61010-2-020.2006
increase.
Add the following three new pieces.
5.4.101 dangerous substances
When a laboratory centrifuge toxic material, or comprises a radioactive contamination of harmful microorganisms, use instructions should be clear Prevention
Measures.
Note 1.This information is related to the safe operation and maintenance personnel of the.
In the specification should be prohibited using the following materials in a laboratory centrifuge.
a) flammable or explosive material;
b) generating a large number of materials lead to dangerous gases chemically react.
NOTE 2.When the processing of the above materials, may be designed as a laboratory centrifuge for special security, but these do not belong to the scope of this centrifuge.
By visual inspection to verify eligibility.
5.4.102 cleaning and disinfection
Documentation shall include.
a) If spills or hazardous substance into the device, the user has the responsibility to declare appropriate disinfection;
b) recommended by the manufacturer regarding cleaning and disinfection of where and generic name recommended disinfection and cleaning material;
c) the following statement.
"Before the manufacturer does not recommend cleaning and disinfection methods, users should check with the manufacturer to ensure that the method does not damage the set
Prepared. "
By visual inspection to verify eligibility.
5.4.103 chemical effects and environmental effects
To ensure the safety of the continued use of laboratory centrifuges, documents should be pointed out that the factors which may cause damage, such as.
a) chemical effect;
b) environmental impact, including natural ultraviolet radiation that may be encountered;
c) corrosion and wear protective cover parts or other security components of structural materials.
Note. it can be evaluated based on existing data, such as data provided by the material suppliers. Manufacturers can arrange for additional tests related to the use of laboratory centrifuges.
By examining the documents and related data to verify eligibility.
6 against electric shock
GB 4793.1 Chapter 6 apply.
7 against mechanical hazard
Except as follows, GB 4793.1 Chapter 7 are applicable.
7.1 Overview
increase.
The original first paragraph of Note as Note 1, add a new Note 2.
Note 2.The results in breakage of the protective cover is damaged components should be considered as a single fault condition, such as a lid locking mechanism.
7.2 Moving parts
increase.
Add the following four new pieces.
7.2.101 cover
7.2.101.1 Requirements
Cover should be kept locked rotor drive means is energized, so far (see Appendix assembly until the rotational peripheral speed of not more than 2m/s when
BB).
GB 4793.7-2008/IEC 61010-2-020.2006
When the power fails, the cover shall not release the locking mechanism, use tools to loosen it.
The cover should withstand a sufficient locking force 7.6.102 the required tests, and can accommodate debris damage resulting [7.6 as a),
Provisions].
To assess which aspects of the following conditions apply to the centrifuge - rotor combinations related information to be recorded, the manufacturer or the detection means
The conduct of the trial.
a) For the mechanical misuse;
b) a locking failure;
c) displacement;
d) etching;
e) aging the material;
f) material defect;
g) vibration;
h) cleaning and disinfection;
i) environmental impact;
j) applies to other design considerations.
By visual inspection, recording information retest, the test conducted by 7.6.102, and further testing is to consider the safety of the subject
Verify eligibility.
7.2.101.2 exception
Laboratory centrifuge for all of the following constraints, only shut down the motor can be used instead of the interlock mechanism of the apparatus (see Appendix
BB).
a) with a laboratory centrifuge device holding the cover closed;
b) Unless the cover is closed, the prohibition means to shut down the motor driving the motor is energized;
c) the rotation frequency of the rotating assembly does not exceed 3600r/min;
Under d) full load, the rotational energy of the highest energy components at frequencies not exceeding the maximum rotation 1kJ;
e) does not exceed the maximum centrifugal force of 2000g;
f) The maximum diameter of the rotating assembly does not exceed 250mm;
g) switching the motor power supply is turned off irrespective of the position of the cover;
h) After the cover is closed rotating assembly should be able to see, so that it can observe the rotation of the rotary assembly of the case;
i) All components used should meet the rotation of the requirements of 7.2 GB 4793.1;
j) when the peripheral speed of the rotating assembly than 2m/s allows access, should be provided at or near a location close to the line with
ISO 3864 warning label to indicate before the rotation stop, not allowed to open the lid; if not provide enough space for the label, can test
Table 1 Symbol 14 considered.
By visual inspection and re-inspection data to identify test satisfy the above-described limit to verify eligibility.
7.2.102 rotating assembly
7.2.102.1 Overview
Under normal conditions or a single fault condition, if the contact with the rotary motion drive system component or components may be dangerous, then
It should provide appropriate protective measures to prevent the operator from approaching. 7.2.101.2 and 7.2.102.2 permitted exceptions.
There should be no upper centrifugal chamber 4mm diameter test pin may pass through any openings.
Under single fault conditions or under normal conditions, and by visual inspection using a test finger (see FIG. B.1 and B.2), and the diameter
Opening test pin 4mm above checks to verify eligibility.
In every possible position, without any external force applied by B. FIG. 1 shown articulated test finger examination. in case
By energizing components become accessible, rigid test finger is applied (see FIG. B.1), while applying a force of 10N. Tests for all foreign
Surface portion, including the bottom. Applying a force to be applied by means of the test finger, in order to avoid or pry the wedging action occurs. Test means not
GB 4793.7-2008/IEC 61010-2-020.2006
Get in contact with any moving parts, to avoid danger.
The need to close during the rotation of the rotating assembly 7.2.102.2
If the manufacturer provides the rotating assembly requires operator interaction (e.g., continuous flow zone or a rotating assembly), allows a laboratory centrifuge
An override exists, that it allows the electric motor when the cover is open accessible, it is assumed.
a) override only the motor is energized by using a device (which may be a card-encoding or encoding), not by using other tools
When achievable measures or when special protective plate can only be close to the rotating component on a limited basis, for possible safety systems and functions
Override.
b) When the operator interaction required rotation assembly, provides a method of automatically cancel override control function.
c) When the lid is opened, it can not exceed the maximum speed 5000r/min.
By visual inspection to verify eligibility.
7.3 Stability
increase.
Add the following third paragraph.
In normal use, relative to its installed position, the centrifuge should not be visible shift occurs.
increase.
Add a new article.
Mobile laboratory centrifuge fault when 7.3.101
According to the manufacturer's instructions after installation, due to imbalance of the rotating assembly, drive failure or damage to the rotary assembly (lock) resulting from the laboratory
Mobile effort is not dangerous.
Should by design, or to restrict the movement of the centrifuge by a method which is fastened to the mounting surface, or a combination of both, so that
All the moving parts of the centrifuge with a laboratory centrifuge outermost end position is not beyond the original defined safety space in any direction
, The value indicated by the manufacturer 300mm or smaller ranges (see Fundamentals BB.2).
By test check to make sure the mobile centrifuge under normal use and the most adverse conditions specified 7.6.101.2 no more than 300mm
Or value smaller range of the manufacturer's instructions to verify eligibility.
a) imbalance;
Note 1.unbalanced due to the sensor as a measure to limit the movement caused by the imbalance, unless the sensor device is a high-integrity, otherwise determined
The most adverse conditions should be considered its possible failure.
b) breakage of the rotary assembly;
c) failure of the drive system;
d) drive system lockup.
Note 2.This failure mode is generated with the maximum displacement of the MCA test 7.6.102 determined based on the failure of the protective cover in different ways.
For the above experiments, a laboratory centrifuge mounted or fixed on the smooth surface of the concrete test level, the size of the test surface is adapted to be
Measuring the size of a laboratory centrifuge, and according to the instructions of the manufacturer.
7.6 parts scattered
instead.
Instead of the original title and the content of 7.6 with a new title and five new strip below.
7.6 pairs scattered parts or components catapult protection
When using the rotating assembly specified by the manufacturer, laboratory centrifuge should be designed to be safe under normal use and single fault conditions
operating.
In the event of damage.
a) in any dimension than 1.5mm rotation assembly components or debris not completely through the protective cover, small material (aerosol
And except liquid) should be controlled in a safe space, i.e., 300mm from the outermost end of a laboratory centrifuge parts in any direction
Range.
GB 4793.7-2008/IEC 61010-2-020.2006
b) laboratory centrifuge can not have removable parts pose a risk to people or the environment.
c) accessible cover not loose fasteners, and you should not have any external laboratory centrifuge and the rotating assembly anywhere
Unobstructed passage is formed between the deformed position.
Under conditions MCA, or portion of the cutting head caused damage or overload of the rotary assembly, or other suitable methods, according 7.6.102
The provisions of test, each centrifuge to test specified by the manufacturer - turned to a combination of eligibility. If there are more than selected rotating assembly
One of the most adverse conditions, each option requires the use of a new protective cover when tested.
After the test, it should satisfy the above a) ~ c) requirements. Should check the visible rupture, in order to determine whether the guard turned around and covering parts,
Regardless of its orbit. Check the results of the problem should be retested again, if the problem still exists is considered substandard. Enter
Test row voltage is 6.8 (without humidity preconditioning), the device checks to determine risk does not become electrically charged parts accessible, and a contact
And conductive parts 6.3.2 does not exceed the limits.
Another alternative method is to centrifuge - Safety rotor may be determined by a combination of analysis and evaluation, analysis and assessment is based
Some have been tested centrifuge - where a rotor combination are compared to determine the protective cover should have been carried out by the
7.6.102 related tests.
NOTE. If the centrifuge design - centrifuge rotor has been tested in combination with another - a combination of the rotor is not satisfactory comparing evaluation results,
Still need to be tested in accordance 7.6.102 of.
Information 7.6.101 MCA tests considered
Information 7.6.101.1 record
Information records should include.
a) the expected effects of corrosion;
b) the fatigue properties of the material;
c) aging material considerations, including repair, maintenance and replacement parts affect the schedule;
d) temperature limit consideration;
e) material defects consideration;
f) considered unsuitable basket mounted;
g) consideration of the relevant environmental;
h) considerations regarding the maximum load;
i) a circuit diagram and functional description;
j) materials specifications and technical data;
k) causes rotation of pretreatment of component failure;
l) during the test traceability of all measuring instruments used;
m) other relevant information.
By examining the above provisions of the relevant documents to verify eligibility.
7.6.101.2 consider the...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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