GB 4793.5-2001 Particular requirements for hand-held probes for safe electrical measurements and tests on electrical equipment for measurement, control and laboratory use
Some standard content:
GB4793.5—2001
All technical contents of this standard are mandatory. Fore
This standard is based on IEC61010-2031 Particular requirements for hand-held probes for electrical measurement and testing, which was formulated by the 66th Technical Committee of the International Electrotechnical Commission IEC, "Safety of electrical equipment for measurement, control and laboratory use". This standard is equivalent to IEC61010-2-031:1993. This standard should be used in conjunction with IEC61010-1. GB4793.1-1995 has equivalently adopted the 1990 version of IEC61010-1 and the first amendment in 1991, but did not adopt the second amendment in 1995. In order to ensure the coordination and consistency between the standards, this standard is equivalent to IEC6 1010-1 is used in conjunction with IEC61010-1. The content of IEC61010-1 can refer to GB4793.1-1995. The safety standard for electrical equipment for measurement, control and laboratory use consists of two parts, Part 1 is general requirements, and Part 2 is special safety requirements for each product.
The part marked "applicable" in this standard indicates that the corresponding provisions in IEC61010-1 are applicable to this standard; the part marked "replace" or "amendment" in this standard is subject to the provisions in this standard; the part marked "addition" in this standard indicates that in addition to complying with the corresponding provisions of IEC61010-1, it must also comply with the provisions added in this standard. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the Comprehensive Technical and Economic Research Institute of Machinery Industry Instruments. The drafting unit of this standard is: Comprehensive Technical and Economic Research Institute of Machinery Industry Instruments. The main drafter of this standard is Ouyang Jinsong. GB4793.5—2001
IEC Foreword
1) The formal resolutions or agreements of the IEC on technical issues developed by the technical committees in which all national committees with special concerns participate express as closely as possible the international consensus on the issues involved. 2) These resolutions or agreements are for international use in the form of recommendations and are accepted by the national committees in this sense. 3) In order to promote international unification, the IEC hopes that all national committees will adopt the contents of IEC standards as the provisions of their national committees to the extent permitted by their domestic conditions. Any differences between the standards recommended by the IEC and the corresponding national standards should be clearly stated in the national standards as far as possible.
This standard was developed by the IEC/TC 66 Technical Committee (Safety of Electrical Equipment for Measurement, Control and Laboratory Use). This standard has the status of a series of safety publications in accordance with IEC Guide 104. The text of this standard is based on the following documents: DIS
66E(CO)13
Voting Report
66(CO)53
Full details of the voting for the approval of this standard can be found in the report shown in the table above. This standard shall be used in conjunction with IEC 61010-1. IEC 61010-1 consists of the first edition of 1990 and amendment No. 1 of 1991. Future versions or amendments of IEC 61010-1 are under study. This standard supplements or amends the corresponding clauses of IEC 61010-1 so as to become an IEC standard: Particular requirements for hand-held probes for electrical measurement and test. Certain clauses of IEC 61010-1 are not repeated in this standard, but they still apply to this standard. Where there is an addition, modification or replacement in this standard, the relevant requirements, test requirements or notes of IEC 61010-1 shall apply. In this standard, the following printed fonts shall be used: Requirements: Roman:
Note: Small Roman,
Test specification: Italic;
Terms used in this standard defined in Chapter 3: Small Roman. National Standard of the People's Republic of China
Safety requirements for electrical euipment formeasurement, control and laboratory use - Particular requirements for hand-held probeassemblies for electrfcal iteasurement and test1 This chapter of IEC61010-1 is applicable except as follows. 1.1 This clause is replaced by the following:
GB 4793. 5—2001
idt IEC 61010-2-031: 1993
This standard applies to the following types of hand-held and hand-operated probe assemblies and related accessories. These probe assemblies are used as an interface between an electrical quantity and a measuring and test equipment. They may be independent application probe assemblies specified in the scope of IEC 61010-1, or they may be accessories to other equipment specified in the scope of IEC 61010-1. a) Low-voltage and high-voltage, non-subtractive probe assemblies (Type A) Non-attenuating probe assemblies with a direct contact voltage not exceeding 63kV AC rms or DC, which do not contain active components, nor have voltage division functions or signal conditioning functions, but may include passive non-attenuating components such as fuses. b) High voltage attenuation or voltage divider probe assembly (type B) Direct contact voltage is higher than 1kV but not more than 63kV AC RMS or DC attenuation or voltage divider probe assembly, the voltage divider function can be fully realized in the assembly, or partially realized in the measurement device used with this probe assembly. e) Low voltage attenuation or voltage divider probe assembly (type C) Direct contact voltage is higher than 30V RMS, or peak value 42.4V, or DC 60V but RMS, peak or DC voltage is not higher than 1 kV, the signal conditioning function can be fully realized in the device, or partially realized in the measurement device used with the probe assembly. 2 Reference standards
This chapter in IEC 61010-1 is applicable.
3 Definitions
Except for the following content, this chapter in [EC61010-1 is applicable. This item adds the following content:
3.101 Probe assemblies and partsprobe assemblies and parts3.101.1 Probe assemblyprobe assemblyA device used to make temporary contact between a measuring device and a point in a circuit under test. It includes cables and various parts for connecting to the measuring device.
Note: See Figure 101 and Figure 102. Probe examples and description of the functions of various parts.Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on November 2, 2001. Implemented on June 1, 2002
Guangdong Province
GB4793.5—2001
Probe body
Typical probe
Examples of probes and other accessories
Figure 101Examples of Type A and Type C probes
3.101.2 Probeprobe
The parts of a probe assembly that make contact with the point under test. 3.101.3 Reference connector Reference connector
A device for connecting the reference point (usually the functional earth terminal) in the measuring equipment to the reference point of the circuit under test. Probe
Connected to the equipment
Carried on the equipment
BNE: connector
Connected to the equipment
Connected to the equipment
4 Test
Substitute connector
GB 4793. 5—2001
Manual area of the probe body
Manual area of the probe body
Reference connector
Figure 102 Example of type B probe assembly
This clause of IEC 61010-1 applies except as follows. The following content is added to this clause:
4.4.2.101 Parts
Each component of a type B and type C probe assembly (except for high-integrity components) shall be short-circuited or open (broken), whichever is the more unfavorable.
5 Marking and documentation
Except for the following, this chapter of IEC61010-1 is applicable. 5.1.2 This clause is replaced by the following:
Each probe assembly and its detachable accessories shall have at least the following markings: the name or registered trademark of the manufacturer or supplier! -For type B and C probes, there shall also be a model, name or other mark that can identify the probe or handle accessory. Note: It is not necessary to mark small general-purpose accessories, such as head-shaped heads, spade-shaped clamps (blades), screw-on detachable probes, etc. GB4793.5—2001
If the probe is designed only for a particular type of equipment, this must be indicated. The particular equipment or type shall be indicated on the probe or in the accompanying documents.
Compliance shall be checked by self-certification.
Table 1 Graphical symbols for equipment
Add the following to this table:
Add a note to the symbol columns 12 and 14 in Table 1. Add a note to the bottom of the table:
Note: If the symbol is pressed or engraved with a depth or raised height of 0.5 mm, the color requirements for symbols 12 and 14 will no longer apply to the marking of the probe.
5.1.4 This clause is replaced by the following:
Probes with fuses replaceable by the operator shall be marked with the necessary technical details to enable the operator to select the correct fuse, including: rated voltage, cut-off power (the maximum current that the fuse can safely interrupt at the maximum rated voltage). If the operator needs to select the fuse for a specific application, the probe shall be marked with the 14th symbol in Table 1. The attached documents shall also provide the necessary information. Compliance is checked by visual inspection.
5.1.5 This clause is amended by the following:
This clause is not applicable.
This clause is added by the following:
5.1.101 Ratings
The maximum rated value of the line-to-earth voltage shall be marked on the probe assembly, preferably on the probe body. (See also 6.4.101). The nature of the voltage (AC, DC, etc.) shall also be indicated, unless the voltage marked applies to both AC (rms) and DC. If the voltage at the reference connector connection point is higher than the value in 6.3.1.1, the rated value shall be marked, preferably on the connector. Compliance is checked by inspection.
Protection against electric shock
This clause of IEC 61010-1 applies except as follows. 6.1.1 Add the following to this clause:
Add the following after the first paragraph:
Probe contacts, if the requirements of 6.7 are met
Add the following clause;
6.2.101 Probe assembly
Figure 103 provides a method for determining the accessible parts of the probe. 6.3 Add the following to this clause:
Add the following after the first paragraph:
Perform the measurements on the probe assembly in accordance with Figures 104 and 105. 6.3.1.2 Add the following content to this clause:
Add after the first dash:
Note: Measurement methods for frequencies above 1 MHz are under consideration. 6.3.2.2 Add the following content to this clause:
Add after the first dash:
Note: Measurement methods for frequencies above 1 MHz are under consideration. Probe accessories
Probe body
GB 4793. 5—2001
a) Parts of the probe assembly
and the prepared connector
mmanco
b) Completely assembled probe assembly (see 6.2 and 6.4.102)) Connecting parts are left to be assembled so that the connection between the probe and the test finger can be made as close as possible to the test finger H
c) Partially assembled head assembly (see 6.2 and 6.4.102b))F
d) Unassembled parts of the probe assembly (see 6.2 and 6.4.102 c)) F three rigid test fingers (see Figure B1)
H = potentially hazardous live parts
Figure 103
Method for determining accessible parts (see 6.2) and test voltage (see 6.4.102) (see Figure 106)
Measure the maximum rated voltage
Measure the maximum rated voltage of the reference terminal
Test connector
(if any)
and) measure under normal conditions (see 6.3.1.2) Figure 104 Accessible current measurement
Measure the accessible current of the measuring probe (see Figure A1)
Maximum rated voltage
Measure the maximum rated voltage of the reference connector
GB 4793. 52001
Metal pin (see Figure 105)
Test connector
(if any)
Electrode of the same shape and size as the standard test finger measuring the accessible current of the electrode (must be Figure A1) b) Measured under single fault conditions (see 6.3.2,2) Figure 104 (end)
Connect the metal pin tightly enclosing the manual area
The metal pin of the manually operated part
Maximum rated voltage
Connect the national voltage of the oxygen enclosing electrode
(see 6. 4.103)
Not connected to the makeup
Note, this figure shows the A-type probe in the positive belt condition, the metal box tightly wrapped around the head
Measure the accessible current of the current (see National A1) Figure 105 is used for the metal box of the accessible current measurement (see Figure 104) 6.4 This clause adds the following content:
6.4.101 Separable parts
Except for the reference connector, the insulation of any part of the probe assembly that can be removed by the operator shall have the rated insulation strength of the circuit to ground voltage that is the same as the rated voltage of the probe assembly, otherwise the voltage rating shall be marked on the part (see 5.1.101 and 5.2 Note). Compliance is checked by visual inspection.
6.4.102 Connectors
GB 4793. 5--2001
The insulation of the connectors between the various parts of the probe assembly, the accessible parts, the electrical space and the creepage distance shall meet the corresponding requirements. a) For fully assembled connectors, the external parts of each connector shall meet the following requirements (creepage distance applies to the first group of materials): - Connectors that are only used to connect the probe assembly and the test equipment and are not held by hand after connection shall be insulated from hazardous live parts by at least basic insulation.
Fully assembled connectors that need to be held by hand during the test, and detachable connectors between the probe assembly and the test equipment, shall be insulated from hazardous live parts by double insulation or reinforced insulation. b) For partially assembled connectors, the basic insulation voltage test specified in 6.8 shall be carried out between the probe and the test pole with the same shape and size as the standard test finger tip (see Figure B1). The test pole shall be applied without external force to the hazardous live parts as close to the connector as possible. At this time, the connector shall be assembled electrically to just connect the circuit (see Figure 103C). ) For non-assembled connectors (except locking connectors), when the probe assembly is subjected to the maximum rated voltage, the hazardous live parts shall meet the following requirements:
-For connectors not exceeding 1 kV AC or 1.5 kV DC, in the non-assembled state, each hazardous live part shall not be touched without the external force of the test finger in Figures BI and B2. - For connectors exceeding 1 kV AC or 1.5 kV DC, a voltage test of 6.8 shall be carried out between the hazardous live parts and an electrode of the same size and shape as the tip of the test finger in Figure B1. The electrode shall be as close as possible to the hazardous live parts (see Figure 103d). The test voltage applied to the probe shall be 1.25 times the rated voltage of the probe assembly. Only resistors acting as protective impedances are subject to the requirements of 14.6.101. Where the accessible current is limited by the protective impedance, the above test is not required.
Compliance is checked by inspection and by measuring clearances and creepage distances, by the voltage test of 6.8 and by determining the accessible parts according to 6.3.
6.4.103 Handheld part
The handheld and hand-operated parts of the probe shall comply with the requirements for double insulation or reinforced insulation. Compliance is checked by inspection and by measuring clearances and creepage distances, by the voltage test specified in 6.8 between a box (see Figure 105) which encloses the handheld and hand-operated parts and a cable approximately 150 mm ± 20 mm long and - probes. The test voltage shall be based on the rated voltage of the probe! - (For type B only) Conductive parts enclosed by the handheld area. The test voltage shall be determined according to the maximum working voltage of the conductive parts in normal use, but not less than 500 V.
(Applicable to type B only) The conductor of the reference connector is connected to the conductor of the connection probe and the test equipment connector. The test voltage shall be determined by dividing the maximum rated voltage of the probe by the voltage division ratio, but shall not be less than 500V. - (Applicable to type C) The rated voltage of the conductor of the reference connector is higher than the value specified in 6.3.1.1. The test voltage shall be determined based on the maximum rated voltage of the reference connector.
Note: The voltage test of the insulator covering non-hazardous live parts (such as the reference connector) is to verify its insulation integrity, not an additional requirement, 6.4.104 Cables
The maximum rated voltage and current of the cable in normal use shall be specified to meet the requirements of double insulation or reinforced insulation in the following cases. - For type A probes, 125V or the maximum rated voltage of the probe, whichever is greater; - For type B probes, 500V or the maximum rated voltage of the probe divided by the voltage divider ratio, whichever is greater; - For type C probes, 125V or the maximum rated voltage of the probe divided by the voltage divider ratio, whichever is greater. Compliance is checked by monthly measurement and by measuring clearances and creepage distances, wrapping 150mm ± 20mm of cable tightly with metal foil, and performing the voltage test specified in 6.8. 6.7 This clause adds the following:
6.7.101 Probes
As permitted in 6.1.1, probes may also become hazardous live parts and shall be equipped with shields to provide a safe distance to reduce the risk of contact with the probes and indicate that contact with the probe body may be dangerous if this limit is exceeded during use. GB 4793. 5—2001
The electrical clearance and creepage distance on the hand-held side of the probe and baffle shall meet the requirements of double insulation or reinforced insulation specified in Appendix D (Standard Appendix).
Figure 106) lists several probes with baffles and indicates the electrical clearance and creepage distances. Spring-loaded compressible probes (see Figure 106b)) may not be equipped with baffles, as long as: the action of the spring device can prevent the operator from touching dangerous live parts; in any position of normal use, a protective measure equivalent to the safe distance can be provided. The electrical clearance and creepage distance between the probe and the nearest surface that the operator needs to touch when operating the probe should be 45mm longer than the distance required with baffles. (Figure 106b) indicates this point) The finger and the insulated alligator clip or other similar clip (see Figure 106c)) are squeezed hard at 90° to the axis of the clip. As long as the limit of safe touch for the operator is indicated, the baffle may not be installed. The electrical clearance and creepage distance between the mark and the clip tip shall meet the double insulation requirements of Appendix D. The exposed conductive part of the probe of the A-type probe shall not exceed 19 mm. A shorter exposed length or the use of an elastic insulating sleeve is recommended. Compliance is checked by visual inspection and measurement. Probe
Cellular distance (along the surface)
Electrical distance (in air)
Appendix 1 Electrical hazards and creepage distances 45 mm
Proximity probe mark
(On both sides of the clip)
One shield
Handling area of the probe body
a) Protection by shield
Additional protective distance
Operating part
Handling part of the compressible probe
b) Distance protection
Proximity limit mark
Metal jaws
c) Insulated alligator clip
(On both sides of the clip)
Insulated jaws
Figure 106 Safety protection measures in Appendix
6.7.102 B with maximum rated voltage higher than 5 kV When the probe with the maximum rated voltage higher than 5kV meets the requirements of double insulation or reinforced insulation, the creepage distance need not be greater than the clearance value required by the Appendix Knife, as long as the probe is only used for Type 1 or 2 circuits in Table D13. 6.9 Structural requirements for electric shock protection
6.9. 3 This item is not applicable.
This item adds the following content:
6.9.101 Corona and partial discharge
GB 4793. 5-2001
When operating at the maximum rated voltage, the structure of the probe should not cause corona (discharge) or partial discharge. The inspection method is under study.
6.9.102 Cable connection
The connection between the cable and the probe body and the equipment (or the connector when the connection is not fixed) should be able to withstand the external forces that may be encountered in normal use without causing damage that may cause danger. Welded or fused electrical contacts should not be used to withstand stress. Compliance is checked by visual inspection and tensile test. Tightly fix the probe body or the device or the connector so that it cannot move. The cable should withstand a continuous and stable axial tension for up to 1 minute. The values are as follows: - For the probe body and the lock-type connector, apply a tension of 36N or a tension equivalent to four times the weight of the probe body, whichever is smaller. - For the non-locking connector, apply 36N or four times the axial tension required to separate the connector, whichever is smaller. After the test:
The cable should not be damaged;
- The insulation of the cable should not be broken or cracked, and there should be no stable insertion. : - The electrical clearance and creepage distance should not be reduced below the values in Appendix D. 7 Protection against mechanical hazards
This item is modified with the following content:
Operating the probe under normal use should not cause danger. Note: The easily accessible edges, protrusions, etc. should be smooth to avoid causing external injuries in normal use (this item does not apply to probes, plugs, etc.). Compliance is checked by visual inspection.
8 Mechanical shock resistance and silicon joints
This clause of IEC61010-1 is applicable except as follows. 8.1 This clause is replaced by the following:
Apply a force of 20N at each point on the probe where a rupture could result in a hazard. 8.2 This clause is replaced by the following:
Fix the probe body to a hard support and then use the hammer head of the impact hammer specified in IEC60817 (see Annex C) to vertically impact the probe body surface. Apply a 3-ohm impact with an energy of 0.5J to each point where a rupture could result in a hazard. 8.3 Vibration test
This clause is not applicable
8.4 This clause is replaced by the following:
Put a 50 cm thick hardwood board with a density greater than 700 kg/m2 flat on a solid base (e.g. a cement board) and then drop three probe samples from a height of 1 m onto the hardwood board. Each sample shall be subjected to this test three times so that all parts of the probe can be impacted.
8.101 Impact test
The probe body is suspended by a cable and can swing freely like a pendulum, so that it hits a hardwood board fixed to a vertical wall (see Figure 107 below). The drop height should be 2 m, or the same length as the probe cable (if its length is less than 2 m). Hardwood board thickness 50 cm, density greater than 700 kg/m.
Initial contact
9 Temperature limits of equipment and prevention of fire spread GB 4793. 5-2001
Suspension support
Original vehicle board
Figure 107 Impact test (see 8.101)
Except for the contents of 9.2.1 to 9.6, this chapter of IEC61010-1 is applicable, and the following additions are made to Table 3: Hand-held or hand-operated part of the probe, including the plug and socket used to connect the test equipment: Metal: 55°C.
Non-metal (see 5): 70°C.
Wires and cables (see Note 2): 75°C. Note 5: If the maximum rated temperature of the material used is below 70°C, the temperature of non-metallic parts is limited to the rated maximum temperature of the material used. 10 Heat resistance
This clause of IEC61010-1 is applicable except for 10.2 and 10.3 and with the following additions:
10.101 Heat resistance of manipulator
Non-metallic material probes shall be able to withstand high temperatures.
This can be tested by any of the following treatments: Treatment in non-operating state. The probe is placed at 70°C for 7h without power. If a higher temperature is measured in the test of 10.1, the placement temperature shall be 10°C higher than the measured temperature. If the probe has easily damaged parts, the empty manipulator may be treated during the treatment and assembled after the treatment.
Treatment in a working state. The manipulator is operated at a room temperature of 60°C under the reference test conditions of 4.3. After treatment, the probe shall not be dangerous (see 1.2) and shall pass the tests of 6.8, 8.2, 8.4 and 8.101. The electrical clearance and creepage distance shall comply with the requirements of 6.7 and Appendix D. 11 Protection against hazards of fluids
Except for 11.3 to 11.5, this chapter of IEC 61010-1 is applicable.5—2001
The electrical clearance and creepage distance on the hand-held side of the probe and the shield shall meet the requirements of double insulation or reinforced insulation specified in Appendix D (Standard Appendix).
Figure 106) lists several probes with shields and indicates the electrical clearance and creepage distances. Spring-loaded compressible probes (see Figure 106b)) may not be equipped with shields, as long as: the action of the spring device can prevent the operator from touching dangerous live parts; in any position of normal use, a protective measure equivalent to the safe distance can be provided-the electrical clearance and creepage distance between the probe and the nearest surface that the operator needs to touch when operating the probe shall be 45mm longer than the distance required with shields. (Figure 106b) indicates this point) The finger and the insulated alligator clip or other similar clip (see Figure 106c)) are squeezed hard at 90° to the axis of the clip. As long as the limit of safe reach for the operator is indicated, the shield may not be installed. The electrical clearance and creepage distance between the mark and the clip tip shall meet the double insulation requirements of Appendix D. The exposed conductive part of the probe of the A-type probe shall not exceed 19 mm. A shorter exposed length or the use of an elastic insulating sleeve is recommended. Compliance is checked by visual inspection and measurement. Probe
Cellular distance (along the surface)
Electrical distance (in air)
Appendix 1 Electrical hazards and creepage distances 45 mm
Proximity probe mark
(On both sides of the clip)
One shield
Handling area of the probe body
a) Protection by shield
Additional protective distance
Operating part
Handling part of the compressible probe
b) Distance protection
Proximity limit mark
Metal jaws
c) Insulated alligator clip
(On both sides of the clip)
Insulated jaws
Figure 106 Safety protection measures in Appendix
6.7.102 B with maximum rated voltage higher than 5 kV When the probe with the maximum rated voltage higher than 5kV meets the requirements of double insulation or reinforced insulation, the creepage distance need not be greater than the clearance value required by the Appendix Knife, as long as the probe is only used for Type 1 or 2 circuits in Table D13. 6.9 Structural requirements for electric shock protection
6.9. 3 This item is not applicable.
This item adds the following content:
6.9.101 Corona and partial discharge
GB 4793. 5-2001
When operating at the maximum rated voltage, the structure of the probe should not cause corona (discharge) or partial discharge. The inspection method is under study.
6.9.102 Cable connection
The connection between the cable and the probe body and the equipment (or the connector when the connection is not fixed) should be able to withstand the external forces that may be encountered in normal use without causing damage that may cause danger. Welded or fused electrical contacts should not be used to withstand stress. Compliance is checked by visual inspection and tensile test. Tightly fix the probe body or the device or the connector so that it cannot move. The cable should withstand a continuous and stable axial tension for up to 1 minute. The values are as follows: - For the probe body and the lock-type connector, apply a tension of 36N or a tension equivalent to four times the weight of the probe body, whichever is smaller. - For the non-locking connector, apply 36N or four times the axial tension required to separate the connector, whichever is smaller. After the test:
The cable should not be damaged;
- The insulation of the cable should not be broken or cracked, and there should be no stable insertion. : - The electrical clearance and creepage distance should not be reduced below the values in Appendix D. 7 Protection against mechanical hazards bzxZ.net
This item is modified with the following content:
Operating the probe under normal use should not cause danger. Note: The easily accessible edges, protrusions, etc. should be smooth to avoid causing external injuries in normal use (this item does not apply to probes, plugs, etc.). Compliance is checked by visual inspection.
8 Mechanical shock resistance and silicon joints
This clause of IEC61010-1 is applicable except as follows. 8.1 This clause is replaced by the following:
Apply a force of 20N at each point on the probe where a rupture could result in a hazard. 8.2 This clause is replaced by the following:
Fix the probe body to a hard support and then use the hammer head of the impact hammer specified in IEC60817 (see Annex C) to vertically impact the probe body surface. Apply a 3-ohm impact with an energy of 0.5J to each point where a rupture could result in a hazard. 8.3 Vibration test
This clause is not applicable
8.4 This clause is replaced by the following:
Put a 50 cm thick hardwood board with a density greater than 700 kg/m2 flat on a solid base (e.g. a cement board) and then drop three probe samples from a height of 1 m onto the hardwood board. Each sample shall be subjected to this test three times so that all parts of the probe can be impacted.
8.101 Impact test
The probe body is suspended by a cable and can swing freely like a pendulum, so that it hits a hardwood board fixed to a vertical wall (see Figure 107 below). The drop height should be 2 m, or the same length as the probe cable (if its length is less than 2 m). Hardwood board thickness 50 cm, density greater than 700 kg/m.
Initial contact
9 Temperature limits of equipment and prevention of fire spread GB 4793. 5-2001
Suspension support
Original vehicle board
Figure 107 Impact test (see 8.101)
Except for the contents of 9.2.1 to 9.6, this chapter of IEC61010-1 is applicable, and the following additions are made to Table 3: Hand-held or hand-operated part of the probe, including the plug and socket used to connect the test equipment: Metal: 55°C.
Non-metal (see 5): 70°C.
Wires and cables (see Note 2): 75°C. Note 5: If the maximum rated temperature of the material used is below 70°C, the temperature of non-metallic parts is limited to the rated maximum temperature of the material used. 10 Heat resistance
This clause of IEC61010-1 is applicable except for 10.2 and 10.3 and with the following additions:
10.101 Heat resistance of manipulator
Non-metallic material probes shall be able to withstand high temperatures.
This can be tested by any of the following treatments: Treatment in non-operating state. The probe is placed at 70°C for 7h without power. If a higher temperature is measured in the test of 10.1, the placement temperature shall be 10°C higher than the measured temperature. If the probe has easily damaged parts, the empty manipulator may be treated during the treatment and assembled after the treatment.
Treatment in a working state. The manipulator is operated at a room temperature of 60°C under the reference test conditions of 4.3. After treatment, the probe shall not be dangerous (see 1.2) and shall pass the tests of 6.8, 8.2, 8.4 and 8.101. The electrical clearance and creepage distance shall comply with the requirements of 6.7 and Appendix D. 11 Protection against hazards of fluids
Except for 11.3 to 11.5, this chapter of IEC 61010-1 is applicable.5—2001
The electrical clearance and creepage distance on the hand-held side of the probe and the shield shall meet the requirements of double insulation or reinforced insulation specified in Appendix D (Standard Appendix).
Figure 106) lists several probes with shields and indicates the electrical clearance and creepage distances. Spring-loaded compressible probes (see Figure 106b)) may not be equipped with shields, as long as: the action of the spring device can prevent the operator from touching dangerous live parts; in any position of normal use, a protective measure equivalent to the safe distance can be provided-the electrical clearance and creepage distance between the probe and the nearest surface that the operator needs to touch when operating the probe shall be 45mm longer than the distance required with shields. (Figure 106b) indicates this point) The finger and the insulated alligator clip or other similar clip (see Figure 106c)) are squeezed hard at 90° to the axis of the clip. As long as the limit of safe reach for the operator is indicated, the shield may not be installed. The electrical clearance and creepage distance between the mark and the clip tip shall meet the double insulation requirements of Appendix D. The exposed conductive part of the probe of the A-type probe shall not exceed 19 mm. A shorter exposed length or the use of an elastic insulating sleeve is recommended. Compliance is checked by visual inspection and measurement. Probe
Cellular distance (along the surface)
Electrical distance (in air)
Appendix 1 Electrical hazards and creepage distances 45 mm
Proximity probe mark
(On both sides of the clip)
One shield
Handling area of the probe body
a) Protection by shield
Additional protective distance
Operating part
Handling part of the compressible probe
b) Distance protection
Proximity limit mark
Metal jaws
c) Insulated alligator clip
(On both sides of the clip)
Insulated jaws
Figure 106 Safety protection measures in Appendix
6.7.102 B with maximum rated voltage higher than 5 kV When the probe with the maximum rated voltage higher than 5kV meets the requirements of double insulation or reinforced insulation, the creepage distance need not be greater than the clearance value required by the Appendix Knife, as long as the probe is only used for Type 1 or 2 circuits in Table D13. 6.9 Structural requirements for electric shock protection
6.9. 3 This item is not applicable.
This item adds the following content:
6.9.101 Corona and partial discharge
GB 4793. 5-2001
When operating at the maximum rated voltage, the structure of the probe should not cause corona (discharge) or partial discharge. The inspection method is under study.
6.9.102 Cable connection
The connection between the cable and the probe body and the equipment (or the connector when the connection is not fixed) should be able to withstand the external forces that may be encountered in normal use without causing damage that may cause danger. Welded or fused electrical contacts should not be used to withstand stress. Compliance is checked by visual inspection and tensile test. Tightly fix the probe body or the device or the connector so that it cannot move. The cable should withstand a continuous and stable axial tension for up to 1 minute. The values are as follows: - For the probe body and the lock-type connector, apply a tension of 36N or a tension equivalent to four times the weight of the probe body, whichever is smaller. - For the non-locking connector, apply 36N or four times the axial tension required to separate the connector, whichever is smaller. After the test:
The cable should not be damaged;
- The insulation of the cable should not be broken or cracked, and there should be no stable insertion. : - The electrical clearance and creepage distance should not be reduced below the values in Appendix D. 7 Protection against mechanical hazards
This item is modified with the following content:
Operating the probe under normal use should not cause danger. Note: The easily accessible edges, protrusions, etc. should be smooth to avoid causing external injuries in normal use (this item does not apply to probes, plugs, etc.). Compliance is checked by visual inspection.
8 Mechanical shock resistance and silicon joints
This clause of IEC61010-1 is applicable except as follows. 8.1 This clause is replaced by the following:
Apply a force of 20N at each point on the probe where a rupture could result in a hazard. 8.2 This clause is replaced by the following:
Fix the probe body to a hard support and then use the hammer head of the impact hammer specified in IEC60817 (see Annex C) to vertically impact the probe body surface. Apply a 3-ohm impact with an energy of 0.5J to each point where a rupture could result in a hazard. 8.3 Vibration test
This clause is not applicable
8.4 This clause is replaced by the following:
Put a 50 cm thick hardwood board with a density greater than 700 kg/m2 flat on a solid base (e.g. a cement board) and then drop three probe samples from a height of 1 m onto the hardwood board. Each sample shall be subjected to this test three times so that all parts of the probe can be impacted.
8.101 Impact test
The probe body is suspended by a cable and can swing freely like a pendulum, so that it hits a hardwood board fixed to a vertical wall (see Figure 107 below). The drop height should be 2 m, or the same length as the probe cable (if its length is less than 2 m). Hardwood board thickness 50 cm, density greater than 700 kg/m.
Initial contact
9 Temperature limits of equipment and prevention of fire spread GB 4793. 5-2001
Suspension support
Original vehicle board
Figure 107 Impact test (see 8.101)
Except for the contents of 9.2.1 to 9.6, this chapter of IEC61010-1 is applicable, and the following additions are made to Table 3: Hand-held or hand-operated part of the probe, including the plug and socket used to connect the test equipment: Metal: 55°C.
Non-metal (see 5): 70°C.
Wires and cables (see Note 2): 75°C. Note 5: If the maximum rated temperature of the material used is below 70°C, the temperature of non-metallic parts is limited to the rated maximum temperature of the material used. 10 Heat resistance
This clause of IEC61010-1 is applicable except for 10.2 and 10.3 and with the following additions:
10.101 Heat resistance of manipulator
Non-metallic material probes shall be able to withstand high temperatures.
This can be tested by any of the following treatments: Treatment in non-operating state. The probe is placed at 70°C for 7h without power. If a higher temperature is measured in the test of 10.1, the placement temperature shall be 10°C higher than the measured temperature. If the probe has easily damaged parts, the empty manipulator may be treated during the treatment and assembled after the treatment.
Treatment in a working state. The manipulator is operated at a room temperature of 60°C under the reference test conditions of 4.3. After treatment, the probe shall not be dangerous (see 1.2) and shall pass the tests of 6.8, 8.2, 8.4 and 8.101. The electrical clearance and creepage distance shall comply with the requirements of 6.7 and Appendix D. 11 Protection against hazards of fluids
Except for 11.3 to 11.5, this chapter of IEC 61010-1 is applicable.This clause of IEC 61010-1 is applicable.This clause of IEC 61010-1 is applicable.102 Connection of cables
The connection of the cable to the probe body and the device (or to the connector when the connection is not fixed) shall withstand the external forces that may be encountered in normal use without causing damage that could lead to danger. Welded or fused electrical contacts shall not be used to withstand stress. Compliance is checked by visual inspection and by a tensile test. The probe body or the device or the connector is firmly fixed so that it cannot move. The cable shall withstand a continuous and steady axial tension for up to 1 min, the values of which are as follows: - For the probe body and the locking type connector, apply 36N or a tension equivalent to four times the weight of the probe body, whichever is less. - For the non-locking type connector, apply 36N or four times the axial tension required to separate the connector, whichever is less. After the test:
The cable shall not be damaged;
The insulation of the cable shall not be pulled off or broken, and there shall be no stable entry into the sleeve; - The electrical clearances and creepage distances shall not fall below the values in Appendix D. 7 Protection against mechanical hazards
This clause is amended with the following:
Handling the probe under normal use should not cause danger. Note: Easily accessible edges, projections, etc. should be rounded to avoid causing external injuries during normal use (this clause does not apply to probes, plugs, etc.). Compliance is checked by visual inspection.
8 Resistance to mechanical shock and silicon joints
Except as follows, this clause of IEC61010-1 is applicable. 8.1This clause is replaced with the following:
Apply a force of 20N at each point on the probe that could cause danger if it breaks. 8.2This clause is replaced with the following:
Fix the probe body with a hard support and then use the hammer head of the impact hammer specified in IEC60817 (see Appendix C) to vertically impact the surface of the probe body. Apply a three-ohm impact of 0.5J to each point that could cause danger if it breaks. 8.3 Vibration test
This clause is not applicable
8.4 This clause is replaced by the following:
Place a 50 cm thick hardwood board with a density greater than 700 kg/m2 flat on a solid base (such as a cement board), and then drop three probe samples from a height of 1 m onto the hardwood board. Each sample should be tested three times so that all parts of the probe can be impacted.
8.101 Impact test
The probe body is suspended by a cable and can swing freely like a pendulum, so that it hits a hardwood board fixed to a vertical wall (see Figure 107 below). The drop height should be 2 m, or the same length as the probe cable (if its length is less than 2 m). Hardwood board thickness 50 cm, density greater than 700 kg/m.
Initial contact
9 Temperature limits of equipment and prevention of fire spread GB 4793. 5-2001
Suspension support
Original vehicle board
Figure 107 Impact test (see 8.101)
Except for the contents of 9.2.1 to 9.6, this chapter of IEC61010-1 is applicable, and the following additions are made to Table 3: Hand-held or hand-operated part of the probe, including the plug and socket used to connect the test equipment: Metal: 55°C.
Non-metal (see 5): 70°C.
Wires and cables (see Note 2): 75°C. Note 5: If the maximum rated temperature of the material used is below 70°C, the temperature of non-metallic parts is limited to the rated maximum temperature of the material used. 10 Heat resistance
This clause of IEC61010-1 is applicable except for 10.2 and 10.3 and with the following additions:
10.101 Heat resistance of manipulator
Non-metallic material probes shall be able to withstand high temperatures.
This can be tested by any of the following treatments: Treatment in non-operating state. The probe is placed at 70°C for 7h without power. If a higher temperature is measured in the test of 10.1, the placement temperature shall be 10°C higher than the measured temperature. If the probe has easily damaged parts, the empty manipulator may be treated during the treatment and assembled after the treatment.
Treatment in a working state. The manipulator is operated at a room temperature of 60°C under the reference test conditions of 4.3. After treatment, the probe shall not be dangerous (see 1.2) and shall pass the tests of 6.8, 8.2, 8.4 and 8.101. The electrical clearance and creepage distance shall comply with the requirements of 6.7 and Appendix D. 11 Protection against hazards of fluids
Except for 11.3 to 11.5, this chapter of IEC 61010-1 is applicable.102 Connection of cables
The connection of the cable to the probe body and the device (or to the connector when the connection is not fixed) shall withstand the external forces that may be encountered in normal use without causing damage that could lead to danger. Welded or fused electrical contacts shall not be used to withstand stress. Compliance is checked by visual inspection and by a tensile test. The probe body or the device or the connector is firmly fixed so that it cannot move. The cable shall withstand a continuous and steady axial tension for up to 1 min, the values of which are as follows: - For the probe body and the locking type connector, apply 36N or a tension equivalent to four times the weight of the probe body, whichever is less. - For the non-locking type connector, apply 36N or four times the axial tension required to separate the connector, whichever is less. After the test:
The cable shall not be damaged;
The insulation of the cable shall not be pulled off or broken, and there shall be no stable entry into the sleeve; - The electrical clearances and creepage distances shall not fall below the values in Appendix D. 7 Protection against mechanical hazards
This clause is amended with the following:
Handling the probe under normal use should not cause danger. Note: Easily accessible edges, projections, etc. should be rounded to avoid causing external injuries during normal use (this clause does not apply to probes, plugs, etc.). Compliance is checked by visual inspection.
8 Resistance to mechanical shock and silicon joints
Except as follows, this clause of IEC61010-1 is applicable. 8.1This clause is replaced with the following:
Apply a force of 20N at each point on the probe that could cause danger if it breaks. 8.2This clause is replaced with the following:
Fix the probe body with a hard support and then use the hammer head of the impact hammer specified in IEC60817 (see Appendix C) to vertically impact the surface of the probe body. Apply a three-ohm impact of 0.5J to each point that could cause danger if it breaks. 8.3 Vibration test
This clause is not applicable
8.4 This clause is replaced by the following:
Place a 50 cm thick hardwood board with a density greater than 700 kg/m2 flat on a solid base (such as a cement board), and then drop three probe samples from a height of 1 m onto the hardwood board. Each sample should be tested three times so that all parts of the probe can be impacted.
8.101 Impact test
The probe body is suspended by a cable and can swing freely like a pendulum, so that it hits a hardwood board fixed to a vertical wall (see Figure 107 below). The drop height should be 2 m, or the same length as the probe cable (if its length is less than 2 m). Hardwood board thickness 50 cm, density greater than 700 kg/m.
Initial contact
9 Temperature limits of equipment and prevention of fire spread GB 4793. 5-2001
Suspension support
Original vehicle board
Figure 107 Impact test (see 8.101)
Except for the contents of 9.2.1 to 9.6, this chapter of IEC61010-1 is applicable, and the following additions are made to Table 3: Hand-held or hand-operated part of the probe, including the plug and socket used to connect the test equipment: Metal: 55°C.
Non-metal (see 5): 70°C.
Wires and cables (see Note 2): 75°C. Note 5: If the maximum rated temperature of the material used is below 70°C, the temperature of non-metallic parts is limited to the rated maximum temperature of the material used. 10 Heat resistance
This clause of IEC61010-1 is applicable except for 10.2 and 10.3 and with the following additions:
10.101 Heat resistance of manipulator
Non-metallic material probes shall be able to withstand high temperatures.
This can be tested by any of the following treatments: Treatment in non-operating state. The probe is placed at 70°C for 7h without power. If a higher temperature is measured in the test of 10.1, the placement temperature shall be 10°C higher than the measured temperature. If the probe has easily damaged parts, the empty manipulator may be treated during the treatment and assembled after the treatment.
Treatment in a working state. The manipulator is operated at a room temperature of 60°C under the reference test conditions of 4.3. After treatment, the probe shall not be dangerous (see 1.2) and shall pass the tests of 6.8, 8.2, 8.4 and 8.101. The electrical clearance and creepage distance shall comply with the requirements of 6.7 and Appendix D. 11 Protection against hazards of fluids
Except for 11.3 to 11.5, this chapter of IEC 61010-1 is applicable.
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