The torque shall be applied again in the same manner as above using a maximum value of The test shall be considered as passed if no permanent deformation or breakage is seen during a vis
Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61318 and the following apply
3.1.1 rated value value of a quantity used for specification purposes, established for a specified set of operating conditions of a component, device, equipment or system
3.1.2 type of device family of devices which are of the same design and application and are of similar dimensions
Symbols
T N rated torque given by the manufacturer for a given device and for testing purposes
F TN rated tensile force given by the manufacturer for a given device and for testing purposes
F CN rated compression force given by the manufacturer for a given device and for testing purposes
F BN rated bending force given by the manufacturer for a given device and for testing purposes
General
To ensure user safety, products covered by this standard must be designed and manufactured for use by skilled individuals engaged in live working, following safe work methods and provided instructions.
All bolts used to join two parts together shall be of suitable and sufficient mechanical strength both in tension and shear for that purpose
Devices subjected to tensile or compressive forces when in use shall be designed in such a way that the force shall be exerted along the axis of the stick
The method for fixing the device shall ensure that it cannot become accidentally detached when in use
The device's fixing method will be engineered to enable the adjustment of the angle between the stick's axis and the attached device in increments of 30° Examples of this system can be found in Annex A.
Dimensional and mechanical requirements
Dimensional requirements
For each type of device complying with this part of the standard, the manufacturer shall provide in writing the rated dimensions and parameters relating directly to its specific functions
NOTE Conducting devices should be designed to be as small as possible consistent with their proper functioning to reduce the risk of short-circuits.
Mechanical requirements
For each type of device complying with this part of the standard, the manufacturer shall provide in writing the rated values corresponding to the characteristics specified in Tables 1 and 2
Conductor cleaning brushes shall resist uses under low and high temperature conditions
NOTE 1 A cold crushing test and a hot crushing test of the brush are included in 5.6.4.3
NOTE 2 In general, for other devices intended to be used in unusual atmospheric conditions (very high or very low temperature or relative humidity), the client should discuss with the manufacturer the interest of performing more restricting mechanical tests in appropriate conditions
Only visual inspection (see 5.2), dimensional check (see 5.3) and compatibility check (see 5.4) are required for the following devices:
• Positive grip clamp stick head • Self-aligning fuse puller
• Ball-socket adjuster • Spiral disconnect
• Fixed double-prong head • Pruning saw
• Retaining device installer (cotter key installer) • Screwdriver
• Insulator ball guide • Conductor polisher
Table 1 outlines the mechanical characteristics of various splined end devices, which will be provided by the manufacturer The types of devices include hook stick adapters, universal adapters, formed-wiring, locating drift, conductor cleaning brushes, holding forks, and spanners (wrenches) Specific characteristics such as tension strength of the spigot and resistance to crushing are also detailed Additionally, the table includes information on retaining pin removers, categorized into spiral type, fine point type, cam type (pry type), and snap-out type.
R etai n in g d evi ce in s ta lle r o r retai n in g d evi ce in s ta lle r/ re m o v e r
The binding wire cutter blade, also known as the tie wire cutter, features a rotary blade and rotary prong for efficient cutting It includes adjustable pliers and vice-grip pliers, along with an adjustable insulator fork The rated distance for bending is specified for optimal performance.
X X X X X S p eci fi c char ac teri s ti c s Rat e d ret u rn fo rc e F R
Tightening capability is crucial for ensuring the strength of articulation in various devices Key characteristics include all-angle players, pin holders, and flexible spanner heads, which enhance functionality Additionally, tools such as ammeter holders, anti-interference braid applicators, hacksaws, and conductor gauges play significant roles Specific characteristics to consider are tightening strength and resistance to distortion, which are essential for optimal performance.
Table 2 – Mechanical characteristics of clevis and tongue stick devices
(to be supplied by the manufacturer)
Mechanical protection
To ensure safety, devices must be equipped with adequate mechanical protection, such as end-caps Additionally, metal devices should be thoughtfully designed with rounded edges, provided that this does not compromise their functionality.
Protection against corrosion
Metal parts shall be protected against corrosion either by their composition or by the use of a suitable surface treatment.
Marking
Each device shall be marked with the following permanent items of marking:
− year and (if possible) month of manufacture;
− symbol IEC 60417-5216 (2002-10) – Suitable for live working; double triangle (see Annex B);
The height-to-base ratio of the triangle is precisely 1.43, but for convenience, it can be approximated within the range of 1.4 to 1.5.
− number of the relevant IEC standard immediately adjacent to the symbol (IEC 60832-2).
The marking shall be durable, clearly visible and legible to a person with normal or corrected vision without additional magnification
Additional details, such as the year of publication of the standard, should not be included at the work location Instead, this information can be linked to the product item through alternative methods like coded information (e.g., barcodes, microchips) or by associating it with the packaging.
Instructions for use
Each device shall be supplied with the manufacturer’s written instructions for use and care
These instructions shall be prepared in accordance with the general provisions given in IEC 61477
These instructions shall include as a minimum, recommendations for maximum mechanical load (see 4.2.2), cleaning, storage and transportation, periodic testing, possible repair and disposal of the device
General
The current standard outlines testing requirements to verify that products meet the specifications of Clause 4 These tests serve mainly as type tests to validate design inputs Additionally, where applicable, alternative methods such as calculations, examinations, and tests are provided in the test subclauses for devices that have already completed the production phase.
Manufacturers must demonstrate compliance with the standard by successfully conducting type tests, as outlined in Tables C.1 and C.2, on a minimum of three devices for each type.
When the differences among various device types are minimal, it is possible to conduct tests on a single device type that are not influenced by the device's unique characteristics The results from these tests can then be applied to other device types.
The tests referred to in Tables C.1 and C.2 shall be performed in the specified numbered order
Mechanical forces must be applied in accordance with Clause 5, achieving a rate of increase between 1% and 10% of the rated force per second, with an accuracy of ±5%.
When a manufacturer specifies a rated tensile force of \$F_{TN} = 100 \, \text{N}\$ for a tool, the rate of increase in force should be maintained between \$1 \, \text{N/s}\$ and \$10 \, \text{N/s}\$ Consequently, the force applied to the device must remain within the range of \$95 \, \text{N}\$ to \$105 \, \text{N}\$.
The dimensions specified in mm in Clause 5 shall be verified with an accuracy of ±2 %
Unless otherwise specified, room temperature shall be (25 ± 10) °C
When visual inspection is specified, it shall be understood to be visual inspection by a person with normal or corrected vision without additional magnification.
Visual inspection
Each device shall be visually inspected to detect manufacturing defaults and to check proper functioning and compliance with requirements included in 4.3, 4.4 and 4.5 where applicable.
Dimensional check
Each device shall be measured to ensure that its dimensions match the manufacturer’s rated dimensions.
Compatibility check
It shall be verified by attaching each attachment system that each type fits properly and securely on the stick for which it has been designed for.
Durability of marking
The durability of the marking shall be verified by thoroughly cleaning the marking for at least
To effectively clean surfaces, use a lint-free cloth dampened with water for one minute, followed by vigorous rubbing for an additional minute with a lint-free cloth moistened with isopropanol (CH₃-CH(OH)-CH₃).
NOTE 1 It is the employer’s duty to ensure that any relevant legislation and any specific safety instructions regarding the use of isopropanol are fully observed
The test shall be considered as passed if the marking remains legible and the letters do not smear
The surface of the tool may change No signs of loosening shall be present for labels
NOTE 2 Markings made by moulding or engraving need not be subjected to this test.
Mechanical tests and specific tests
Universal adaptor and hook stick adaptor
The adaptor must be securely attached to the designated stick and assembled with the test part illustrated in Figure 1 Additionally, the wing screw should be tightened to a torque of 3 N·m.
3 direction of tension / axis of torque
Figure 1 – Test set-up for a hook stick adaptor – Torsion and tension of the adaptor
A torque of 1.25 T N will be applied around the axis of the universal hand stick or hook stick, gradually increasing to this value and maintained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
The torque must be reapplied in the same manner as previously described, reaching a maximum of 2.5 T N, and this value should be sustained for at least one minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The adaptor must be securely attached to the designated stick, and the complete assembly should be connected to the test part illustrated in Figure 1 Ensure that the wing screw is tightened to the specified torque.
A tensile force must be applied along the axis of the universal hand stick or retractable hook stick, gradually increasing to a value of 1.25 F TN This force should be sustained at this level for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A tensile force of up to 2.5 F TN will be applied and maintained for at least one minute, following the same procedure as previously described.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
5.6.1.3 Torsion of the wing screw
The adaptor shall be fitted to the test part (see Figure 2)
2 test cap piece on the head
3 universal end fitting to ensure the clamping
Figure 2 – Universal adaptor and hook stick adaptor –
Torsion of the wing screw
A torque shall be applied to the wing screw up to a value of 1,25 times the rated torque of
3 Nãm and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is observed after the test
The torque should be reapplied in the same manner as previously described, reaching a maximum of 2.5 times the rated torque of 3 Nm, and this value must be sustained for at least 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Formed-wire ring – Tension of the spigot
A ring shall be fixed by means of its attachment system (on a universal hand stick for example)
A tensile force will be applied to the spigot and gradually increased to 1.25 times the manufacturer's specified tension strength, as illustrated in Figure 3 This force must be sustained at this level for a minimum duration of one minute.
Figure 3 – Formed-wire ring – Tension of the spigot
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A tensile force will be applied similarly, reaching a maximum of 2.5 times the manufacturer's specified tension strength of the spigot, and this force will be sustained for at least one minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Locating drift – Bending test
The locating drift shall be placed in the test device shown in Figure 4
Figure 4 – Locating drift – Bending test
A bending force must be applied and gradually increased along the attachment system's axis to a maximum of 1.25 F BN, which should then be sustained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of up to 2.5 times the nominal bending force (2.5 F BN) should be applied in the same manner as previously described and maintained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Conductor cleaning brush – Semi-tubular type
The brush shall be mounted on a device that allows a rectilinear movement to be applied to it under a specified pressure
The pressure shall be chosen so that the crushing of the brush fibres on a 20 mm diameter bar is 10 % of their length (see Figure 5)
Figure 5 – Conductor cleaning brush – Fatigue test on semi-tubular type
3 000 movement cycles shall be applied to the brush: each cycle shall be a complete movement to-and-fro
The test will be conducted using a brass bar followed by a copper bar, with each test consisting of 3,000 cycles The test is deemed successful if both the brush fibers and the brush maintain their efficiency throughout the process.
The brush body must remain stationary while progressively increasing force is applied to the attachment system until it begins to rotate relative to the brush body.
The test shall be considered as passed if this rotation occurs at a value of force between 0,1 Nãm and 0,15 Nãm
The conditioning details shall comply with IEC 60212 The brushes shall be placed in a conditioning chamber (code 6h/–10C)
Then a crushing test shall be performed for a period of 1 h at a temperature of 10 °C in the open position (see Figure 6), by applying a force of 2,5 F CN on the body of the brush
Figure 6 – Conductor cleaning brush – Semi-tubular type – Crushing test
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The conditioning details shall comply with IEC 60212 The brushes shall be placed in a conditioning chamber (code 4h/55C/20 %)
A crushing test will be conducted for 1 hour at 55 °C and 20% relative humidity in the open position, applying a force of 2.5 F CN on the brush body.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The test shall be considered as passed if when the force is removed, the brush regains its initial size at room temperature (code M/23C/50 %)
Conductor cleaning brush – V-shaped type – Fatigue test
The test shall be identical to the fatigue test for the semi-tubular type brush but as shown in Figure 7
Figure 7 – Conductor cleaning brush – V-shaped type – Fatigue test
Oilcan – Functioning of the operating lever
The tank shall be filled with oil The oilcan shall be kept vertical
A steadily increasing force shall be applied to the end of the operating lever until a jet of oil comes out of the spout
This shall occur at a value of applied force of between 15 N and 50 N
A force of 150 N shall be then applied to the lever in the same way as above
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
Then the tank shall be emptied almost entirely using the operating lever, and the operating force shall be measured The value of the force measured shall remain between 15 N and
Ratchet spanner (ratchet wrench) – Friction
This test applies only to devices without external adjustment
The body of the ratchet spanner shall be fixed A force shall be applied to the attachment system and progressively increased until it rotates smoothly
The test shall be considered as passed if this rotation occurs at a value of torque of between
Spanner (wrench) – Torsion test
The spanner is designed to engage a stationary nut (refer to Figure 8) It will be mounted on the attachment system of a universal hand stick, and the screw will be tightened to a torque of 10 N·m.
4 device for holding lock nut
Figure 8 – Spanner (wrench) – Torsion test
A torque shall be applied to the attachment system and progressively increased up to a value of 1,25 T N , and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Retaining pin remover
The test provisions applicable to different types of pin removers are given below a) Spiral type
To use the retaining pin remover, insert its point into a hole with a diameter of d (mm) drilled in a plate that has a hardness index exceeding that of the device Additionally, a metal plate must be secured a mm below the center line of the hole, ensuring that the device makes contact with this supporting plate (refer to Figure 9).
A torque of 1.25 T N must be applied to the attachment system using a lever, such as a universal hand stick, and maintained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied and maintained for at least 1 minute The test is deemed successful if there is no visible permanent deformation or breakage upon inspection after the test.
Figure 9 – Spiral type retaining pin remover – Torsion test b) Fine point type
The retaining pin remover's point must be inserted into a hole with a diameter of d (mm) drilled in a plate that has a hardness index exceeding that of the device Additionally, a metal plate should be securely positioned a mm below the center line of the hole, ensuring that the device makes contact with this supporting plate (refer to Figure 10).
A torque of 1.25 T N will be applied to the attachment system using a lever, such as a universal hand stick, and will be gradually increased before being held at this value for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied and maintained for at least 1 minute The test is deemed successful if there is no visible permanent deformation or breakage upon inspection after the test.
Figure 10 – Fine-point type retaining pin remover – Torsion test c) Cam type (pry type)
To establish the minimum torque necessary for rotation and the maximum torque needed to sustain that rotation, one complete turn of the attachment system will be utilized.
The test shall be considered as passed if rotation occurs at a value of torque of between 0,5 Nãm and 1,5 Nãm
The manufacturer's distance rating, denoted as "a," indicates the specifications for the retaining pin remover It must be inserted into a hole with a diameter of "d" mm, drilled into a plate that has a hardness index exceeding that of the device Additionally, a supporting plate should be securely attached to this plate, ensuring that the cams make contact with the supporting plate.
A bending force must be applied at a distance of a mm from the device's point and gradually increased to 1.25 times the rated force (F BN), which should be sustained for at least one minute.
The point of the device shall not come out of the hole
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of 2.5 F BN will be applied from a distance of 1 mm, similar to the previous method, and maintained for at least 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
Figure 11 – Cam type (pry type) retaining pin remover – Bending test d) Snap-out type
The rated return force value for the spring, denoted as \( F_R \), is specified by the manufacturer It is essential to measure the minimum force needed to fully extend the device to the end of its travel.
The test shall be considered as passed if the measured value is within the values of
The snap-out type retaining pin remover shall be attached to a test part made with an attachment system
A force of 2,5 F TN shall be applied to the conical point of the device using an axis 8 mm in diameter
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
Holding fork – Bending test
A flat metal plate shall be held firmly in place The flat metal plate is jammed between the jaws of the holding fork, as show in Figure 12
M flat metal plate measuring 39 mm × 5 mm held firmly in place
Figure 12 – Holding fork – Bending test
A bending force must be applied and gradually increased along the axis of the attachment system to a level of 1.25 F BN, which should then be sustained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test The fork shall neither open nor slip
A bending force of 2.5 F BN should be applied similarly as previously described and maintained for a minimum duration of one minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Retaining device installer/remover – Bending test
5.6.11.1 Test on the removing part
The device must be securely mounted on a fixed attachment system, with the wing screw tightened to a torque of 3 N·m, and positioned as illustrated in Figure 13a.
A bending force will be applied 200 mm from the attachment system's axis, gradually increasing to 1.25 times the nominal force (F BN) and held at this level for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
5.6.11.2 Test on the installing part
Another device shall be attached as shown in Figure 13b
Figure 13a – Bending test for removing part
Figure 13b – Bending test for installing part
Figure 13 – Retaining device installer/remover – Bending test
A bending force must be applied to the end of the device's "installing" part, gradually increasing it to 1.25 times the nominal bending force (F BN) and maintaining this force for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of up to 2.5 times the nominal bending force (2.5 F BN) should be applied in the same manner as previously described and maintained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage occurs or is seen during a visual inspection after the test.
Binding wire cutter blade (tie wire cutter) – Bending test
The device must be attached to the designated stick, and the tie wire cutter blade should be placed into the notch of the test device (refer to Figure 14).
A bending force will be applied and gradually increased to 1.25 times the nominal bending force (F BN), which must be sustained for a minimum duration of one minute.
Details of the test device
T test device (R/2 mm thick) tightly clamped
C tie wire cutter inserted in the notch
Figure 14 – Binding wire cutter blade (tie wire cutter) – Bending test
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of 2.5 F BN should be applied similarly as previously described and maintained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage occurs or is seen during a visual inspection after the test
Rotary blade – Tension test
The rotary blade is connected to the test device's attachment system, where a tensile force is applied to the blade, as illustrated in Figure 15 This force is gradually increased to a maximum of 1.25 F TN and held steady for at least one minute.
2 attachment system of the test device
Figure 15 – Rotary blade – Tension test
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test The rotary blade shall rotate without difficulty
A tensile force of up to 2.5 F TN will be applied and maintained for at least one minute, following the same procedure as previously described.
The test shall be considered as passed if no permanent deformation or breakage occurs or is seen during a visual inspection after the test.
Rotary prong – Tension test
The same test shall be used as for the rotary blade, but applied as shown in Figure 16
2 attachment system of the test device
Figure 16 – Rotary prong – Tension test
Adjustable pliers
A metal rod 20 mm in diameter shall be placed between the jaws of the pliers under test as shown in Figure 17
1 tightly clamped rod 20 mm diameter
Figure 17 – Adjustable pliers – Tightening capability
A torque of 1.25 T N must be applied to the attachment system, which is interconnected with the gear along the longitudinal axis of the pliers This torque should be progressively increased and maintained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
A metal rod 20 mm in diameter shall be clamped firmly between the jaws of the pliers, as shown in Figure 18, using a torque of 35 Nãm
1 tightly clamped rod 20 mm diameter
Figure 18 – Adjustable pliers – Bending test
A bending force \( F \) will be applied to the attachment system, gradually increasing to a maximum of \( 1.25 F_{BN} \) This force must be sustained at this level for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force \( F \) will be applied similarly, with a maximum value of \( 2.5 F_{BN} \), and this force will be sustained for at least 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Vice-grip pliers
A metal rod 20 mm in diameter shall be placed between the jaws of the pliers (see Figure 19)
F A blocking force for the handle
3 metal rod 20 mm in diameter
4 point of application of force to unblock the handle
Figure 19 – Vice-grip pliers – Tightening capability –
Blocking and unblocking of the handle
A torque of 1.25 T N will be applied to the screw end of the vice-grip pliers along its longitudinal axis and will be gradually increased, then held at this value for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N should be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
A 20 mm diameter metal rod will be positioned between the jaws of the pliers, as illustrated in Figure 19 The screw will be tightened to a torque of 0.25 T N while the cam tightening handle remains in the open position.
The cam tightening handle should be secured with a clamp to generate the necessary force for closure (refer to Figure 19) The force \( F_A \) applied by the clamp to close the jaws until they are obstructed (beyond the cam tip) must be measured.
The test shall be considered as passed if the measured force does not exceed 200 N
After completing the handle blocking test, the clamp must be removed Position the separating pliers as illustrated in Figure 19 to enable the opening of the vice-grip pliers by operating the cam tightening handle, and measure the force required for this action.
The test is deemed successful if the force measured on the cam tightening handle, required to release the grip of the jaws on the metal rod, is below 100 N.
The vice-grip pliers will be reinstalled on a 20 mm diameter metal rod, which is secured in a fixed support using a torque of T N and an over-centre handle force to close the pliers The testing procedure will follow the same method as outlined for adjustable pliers in section 5.6.15.2.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Adjustable insulator fork
5.6.17.1 Torsion of the attachment system
A tube with the appropriate diameter must be securely clamped in the fork, ensuring that the device's attachment system is aligned with the fork on the designated stick For a universal hand stick, the wing screw should be tightened to a torque of 10 N·m (refer to Figure 20).
1 flat-fork clamped on the tube
Figure 20 – Adjustable insulator fork – Torsion of the attachment system
A torque shall be applied and progressively increased up to a value of 1,25 T N and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N should be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The attachment system of the device shall be securely attached horizontally to a hand stick for which it is designed (see Figure 21)
1 attachment system of the hand stick held firmly in place horizontally
Figure 21 – Adjustable insulator fork – Bending test
A bending force F shall be applied and progressively increased up to a value of 1,25 F BN , and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force \( F \) will be applied similarly as before, with a maximum bending force of \( 2.5 F_{BN} \), and this force will be sustained for at least 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The fork's attachment system must be firmly secured for the bending test (refer to Figure 22) For a universal hand stick, the wing screw used to tighten the splined articulation should be tightened to a torque of 10 N·m.
1 attachment system of the hand stick held firmly in place horizontally
2 tightened with a force of 10 Nãm
Figure 22 – Adjustable insulator fork – Articulation test
A tensile force \( F \) will be applied along the axis of the fork's jaws, gradually increasing until it reaches 1.25 times the nominal tensile force (\( 1.25 F_{TN} \)) This force must be maintained for a minimum duration of one minute while keeping the fork flat.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A tensile force \( F \) will be applied similarly, reaching a maximum of \( 2.5 F_{TN} \), and this force will be sustained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
All-angle pliers
A metal rod 20 mm in diameter shall be placed between the jaws of the pliers as shown in Figure 23
1 20 mm diameter metal rod tightly clamped in a vice
Figure 23 – All-angle pliers – Tightening capability
A torque of 1.25 T N will be applied to the attachment system along the longitudinal axis of the pliers, gradually increasing to this value and maintaining it for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
A metal rod 20 mm in diameter shall be clamped between the jaws of the pliers using a torque of 35 Nãm, as shown in Figure 24
1 20 mm diameter metal rod tightly clamped in a vice
Figure 24 – All-angle pliers – Bending test
A bending force must be applied to the attachment system, gradually increasing to a value of 1.25 F BN, and this force should be sustained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of up to 2.5 times the nominal bending force (2.5 F BN) should be applied in the same manner as previously described and maintained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Pin holder
To conduct the test, a rivet head pin that matches the pin holder type must be utilized, ensuring it is securely positioned in the holder's notch by the spring blade alone, without using the adjusting device (refer to Figure 25) A tensile force should then be applied between the fixed pin and the attachment system, gradually increasing until the pin dislodges from the notch.
The test shall be considered as passed if this slipping occurs at a value of tensile force of between 10 N and 15 N
Figure 25 – Pin holder – Resistance of the spring
To conduct the test, a rivet head pin that matches the specific type of pin holder must be utilized The pin holder should be securely positioned horizontally, with the rivet head pin inserted into the notch of the rigid blade, oriented downwards (refer to Figure 26) It is important to note that the adjusting device should not be employed during this process.
1 attachment system of the device
Figure 26 – Pin holder – Bending test
A bending force \( F \) will be applied to the end of the rivet head pin, gradually increasing to a maximum of \( 1.25 F_{BN} \) This force must be sustained at this level for a minimum duration of one minute.
The test is deemed successful if there are no visible signs of damage observed during the visual inspection following the test Additionally, the pin must remain securely in the notch without slipping out.
A bending force of up to 2.5 times the nominal bending force (2.5 F BN) should be applied in the same manner as previously described and maintained for a minimum duration.
The test is deemed successful if a visual inspection reveals no permanent deformation or breakage, and the pin remains securely in the notch without slipping out.
Flexible spanner head (flexible wrench head) – Torsion test
A torque of 1.25 T N must be applied to the device's attachment system while the other end is secured in a fixed position, and this torque should be maintained for at least one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N should be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Ammeter holder
The body of the ammeter holder shall be fixed rigidly (see Figure 27)
Figure 27 – Ammeter holder – Torsion test
A torque shall be applied to the attachment system and progressively increased up to a value of 1,25 T N , and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A torque of 2.5 T N will be applied in the same manner as previously described and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The shock test will utilize the pendulum hammer test method, with the ammeter-holder securely attached to a rigid frame to ensure that the impact point aligns with the hammer's trajectory and the vertical plane of the swing axis This swing must align with the tangent plane at the impact point on a curved surface The hammer will weigh 0.5 kg and will be dropped from a height of 0.5 m, with a minimum hardness requirement of 20 HRC.
The ammeter-holder will feature three designated impact points, strategically chosen to identify areas most susceptible to damage upon falling onto a flat surface Each location will undergo testing only once to ensure accurate results.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
Detail of the assembly of hammer Detail of hammer head
A axis of swing adjustable HH hammer head – rockwell hardness of material ≥ 20 HRC
AH axe of hammer S metal tube
F frame V vertical plane through axis of pendulum
Figure 28 – Ammeter holder – Shock test
Anti-interference braid applicator
Each sliding rod's section profile must be verified with the correct gauge, ensuring it fits into the smallest section end up to the stop, while it should not fit into the other sliding rod.
Figure 29b – Sliding rod maximum-minimum gauge
Figure 29 – Anti-interference braid applicator – Controlling the sliding rod
Each sliding rod of the device must undergo testing, where the test device is engaged with the rod until it reaches the stop It is essential to secure the device firmly to ensure that the sliding rod remains horizontal, with its opening directed downwards.
A bending force \( F \) is applied to the end of the test device, gradually increasing to 1.25 times the nominal bending force \( F_{BN} \), and is then sustained at this level for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force of up to 2.5 times the nominal bending force (2.5 F BN) should be applied and sustained for a minimum duration.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
4 t-shaped metal section, its base measuring a
Figure 30 – Anti-interference braid applicator – Bending test
Hack saw – Bending test
A removable handle must be attached to the saw with its axis perpendicular to the blade The wing screw should be tightened to a torque of 3 N·m An appropriately sized pin is to be inserted into the handle's hole, while the angled section of the saw mounting should rest on a rod.
A bending force \( F \) will be applied through a cable connecting the blade turnbuckle to the pin in the handle hole, gradually increasing to a maximum of \( 1.25 F_{BN} \) This force must be sustained at this level for a minimum duration of one minute (refer to Figure 31).
1 blade guide (point of application of force)
Figure 31 – Hack saw – Bending test mounting
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A bending force \( F \) will be applied similarly as before, with a maximum bending force of \( 2.5 F_{BN} \), and this force will be sustained for at least 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Mirror
The mirror's attachment system must align with the test device's attachment system, ensuring that the optical axis remains horizontal (refer to Figure 32) Subsequently, the torque needed to rotate the mirror around the friction articulation will be measured.
The test shall be considered as passed if the value of the measured torque is between 0,3 Nãm and 0,6 Nãm
F force applied in a perpendicular plane d distance between the point of application of the force F, and the rotation point
The mirror shall be dropped flat once onto a hard flat surface, the mirror facing the ground (horizontal plane), and once on its side (vertical plane) from a height of 1 m
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Conductor gauge
Three different diameters (known with an accuracy to within 1 %) of reference rods shall be measured using the conductor gauge
The test shall be considered as passed if the difference between the readings taken and the corresponding known values does not exceed 5 %
The movable slide must be positioned at its minimum setting To initiate movement of the slide within its housing, a force F should be applied to the cursor, as illustrated in Figure 33.
The test shall be considered as passed if the slipping occurs at a value of measured force of between 2,5 N and 5 N
Figure 33 – Conductor gauge – Testing the slide
5.6.25.3 Distortion of the gauge body
The gauge shall be held firmly in place; then a metal rod 16 mm ± 0,1 mm in diameter shall be placed in the measuring “V” (see Figure 34)
1 metal rod 16 mm in diameter
Figure 34 – Conductor gauge – Distortion of the gauge body
A compression force \( F \) will be applied along the axis of the gauge, gradually increasing to a maximum of \( 1.25 F \) CN, and held at this level for at least one minute.
The distortion measured on the slide shall not exceed 5 mm
The test is deemed successful if a visual inspection reveals no visible signs of damage Additionally, once the applied force is removed, there should be no remaining distortion.
A compression force of up to 2.5 F CN will be applied and maintained for a minimum duration of one minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test.
Gap gauge
The gap gauge shall be placed in a test device (see Figure 35)
2 two iron sections used for support
3 attachment for retractable hook stick
Figure 35 – Gap gauge – Tension test
A tensile force will be applied to the attachment system with a retractable hook stick adaptor, gradually increasing to 1.25 times the nominal tensile force (1.25 F TN) and held at this level for a minimum duration of one minute.
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A tensile force of up to 2.5 F TN will be applied and maintained for a minimum duration of 1 minute.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
The gauge must be immersed in water for at least 24 hours, conditioned at a temperature of 24h/23 ± 0.5°C, as per IEC 60212 After immersion, it should be wiped and left in free air for a minimum of 1 hour at a temperature of 18-28°C and humidity of 45-75% The electrodes should be positioned on either side of the gauge, secured with slight pressure An alternating voltage at power frequency must then be applied between the electrodes, following IEC 60060-1, with the client specifying the gauge thickness and corresponding test voltages to ensure compliance with safety regulations for their network.
Figure 36 – Gap gauge – Electrical test
The test shall be considered as passed if no puncture or flashover occurs or is seen during a visual inspection after the test.
Clevis and tongue stick devices – Tension test
The device shall be placed on a tensile force test bench between two suitable axes
A tensile force shall be applied and progressively increased up to a value of 1,25 F TN , and then maintained at this value for a period of not less than 1 min
The test shall be considered as passed if no visible sign of damage is seen during a visual inspection after the test
A tensile force of up to 2.5 F TN will be applied and maintained for a minimum duration of 1 minute, following the same procedure as previously described.
The test shall be considered as passed if no permanent deformation or breakage is seen during a visual inspection after the test
Instructions for use
Type test
A visual check shall be performed to verify that all the requirements of 4.6 are fulfilled.
Alternative test in case of attachable devices having completed the
At the production level, it is only needed to check for the availability of the instructions for use
6 Conformity assessment of devices having completed the production phase
For conducting the conformity assessment during the production phase, IEC 61318 shall be used in conjunction with the present standard
Annex D issued of a risk analysis on the performance of the devices provides the classification of defects and identifies the associated tests applicable in case of production follow-up
Any changes made to the device will necessitate a complete or partial repetition of type tests, depending on the extent of the modifications, along with an update to the device's reference documentation.
Attachment system of sticks – Examples
Matrix parts: ±0,1 unless otherwise stated
Suitable for live working ; double triangle
In Tables C.1 and C.2, references to subclauses explaining the tests are enclosed in parentheses Certain device columns are subdivided according to the number of specified destructive mechanical tests, with sequential numbers assigned to each test in these sub-columns Tests sharing the same sequential number can be conducted in any convenient order Within a test group, type tests can be performed out of sequence on the same three devices, and the test groups themselves do not need to follow the specified order.
Table C.1 – Type tests for splined end devices
Conductor cleaning brush Universal adaptor and hook stick adaptor
Oilcan Ratchet spanner Spanner Positive grip clamp stick head Type tests
Group 1 Group 2 Group 3 Group 1 Group 1 Group 1 Group 1 Group 1 Group 1 Group 1 Group 1
Type tests out of sequence
Table C.1 – Type tests for splined end devices (continued)
Type of devices Retaining pin remover
Binding wire cutter blade Type tests
Type tests out of sequence
X X X X X X X X X X X a Three devices for “installer tests” and three devices for “remover tests” b Only bending test for installing part
Table C.1 – Type tests for splined end devices (continued)
Screw clamp Adjustable pliers Vice-grip pliers Type tests
Type tests out of sequence
Table C.1 – Type tests for splined end devices (continued)
Adjustable insulator fork All-angle pliers Pin holder
Flexible spanner head Ammeter holder
Anti- interference braid applicator Type tests
Group 1 Group 2 Group 3 Group 1 Group 2 Group 1 Group 1 Group 1 Group 2 Group 1
Type tests out of sequence
Spiral disconnect Hack saw Pruning saw Screwdriver Conductor polisher Mirror Conductor gauge Gap gauge Type tests
Group 1 Group 1 Group 1 Group 1 Group 1 Group 1 Group 1 Group 1
Type tests out of sequence
Table C.2 – Type tests for clevis and tongue stick devices
Clevis screw attachment Type tests
Group 1 Group 1 Group 1 Group 1 Group 1 Group 1
Type tests out of sequence
Example of test sequence: Universal adaptor and hook stick adaptor
− first: visual inspection and dimensional check in the more convenient order;
Tests out of sequence: Durability of marking and instruction for use
– second: torsion of the wing screw
− second: tension of the adaptor
Classification of defects and tests to be allocated
This annex aims to systematically address the various types of defects in manufactured devices, categorized as critical, major, or minor, in accordance with IEC 61318 It specifies both the type of defect and the corresponding test for each requirement outlined in Tables D.1 and D.2.
Table D.1 – Classification of defects and associated requirements and tests for splined end devices
Universal adaptor and hook stick adaptor
Positive grip clamp stick head
(4.2) Minor Minor Minor Minor Minor Minor Minor Minor Minor 5.3
(4.2) Major Major Major Major Major Major Major Major Major 5.4
(4.3) Minor Minor Minor Minor Minor Minor Minor Minor Minor 5.2
Minor Minor Minor Minor Minor Minor Minor Minor Minor 5.2
(4.5) Major Major Major Major Major Major Major Major Major 5.2
Minor Minor Minor Minor Minor Minor Minor Minor Minor 5.5
Instructions for use (4.6) Major Major Major Major Major Major Major Major Major 5.7.2
Table D.1 outlines the classification of defects along with the corresponding requirements and tests for various splined end devices, including retaining pin removers, Shepherd's hooks, spiral types, fine point types, cam types, and snap-out types.
Bal l-S ocket A d ju ster H o ldi ng fo rk
Fi xed doub le- prong head
Retai n in g devi ce ins ta lle r
Retai n in g devi ce in stal ler / rem o ver B indi ng wire cutter bl ade R e quir e m e nt s Ty pe o f de fe ct
The article discusses various aspects of dimensional tests, highlighting the importance of compatibility and mechanical properties It emphasizes the significance of torsion and bending tests, categorizing them as major factors in assessing material performance.
Ma jo r (5 6 9 c ) Ma jo r (5 6 1 0 ) Ma jo r (5 6 1 1 ) Ma jo r (5 6 1 2 ) 5 6 M ec h ani ca l: t ens io n (4 2 ) Ma jo r (5 6 9 d ) 5 6 Sp e cific req ui rem ent s (4 2 )
The article discusses various aspects of mechanical protection, emphasizing the importance of protection against corrosion and proper marking of items It highlights that while mechanical protection is a major concern, marking for durability is considered a minor issue Additionally, it stresses the significance of providing clear instructions for use, which is categorized as a major requirement Overall, the content underscores the need for effective protection measures and clear communication in product usage.
Table D.1 outlines the classification of defects along with the corresponding requirements and tests for various splined end devices, including rotary blades, rotary prongs, insulator ball guides, and hammers.
The article discusses essential tools for electrical work, including self-aligning fuse pullers, screw clamps, adjustable pliers, vice-grip pliers, adjustable insulator forks, all-angle pliers, and pin holders It emphasizes the importance of understanding the requirements and types of defects associated with these tools to ensure effective and safe usage.
The article discusses various tests and their dimensions, highlighting the minor and major compatibility aspects It emphasizes the importance of mechanical tests, specifically focusing on torsion and bending, to ensure structural integrity and performance.
Ma jo r (5 6 1 5 2 ) Ma jo r (5 6 1 6 4 ) Ma jo r (5 6 1 7 2 ) Ma jo r (5 6 1 8 2 ) Ma jo r (5 6 1 9 2 ) 5 6 M e cha n ical : Tens io n (4 2 )
Ma jo r (5 6 1 3 ) Ma jo r (5 6 1 4 ) 5 6 Sp e cific req ui rem ent s (4 2 )
The article outlines various major and minor standards related to mechanical protection, corrosion resistance, marking items, durability, and usage instructions Key sections include major standards for mechanical protection (5.6.1.5.1), corrosion protection (5.2), and detailed instructions for use (5.6.1.7.3) Additionally, it highlights the importance of marking for durability and compliance, with several minor standards noted throughout Overall, the document emphasizes the critical aspects of safety and quality in mechanical applications.
Table D.1 – Classification of defects and associated requirements and tests for splined end devices (continued) T y p e of d evi c es Fl exi bl e spanne r head
The article discusses essential tools and equipment, including an ammeter holder, anti-interference braid applicator, spiral disconnect, hacksaw, pruning saw, screwdriver, conductor polisher, mirror conductor gauge, and gap gauge It also highlights the requirements and types of defects associated with these tools.
The article discusses various testing dimensions and their criticality levels It highlights that minor issues are present in the tests related to dimension (4.2) and critical compatibility (5.3) Major concerns are noted in mechanical testing, specifically in torsion (5.6.20), bending (5.6.22.2), and tension (5.6) The emphasis is on the importance of addressing these major mechanical aspects to ensure overall reliability and performance.
Ma jo r (5 6 2 6 1 ) 5 6 Sp e cific req ui rem ent s (4 2 )
The article outlines various classifications of mechanical protection and corrosion prevention measures Major categories include mechanical protection (5.6.2.1.2) and instructions for use (4.6), which are emphasized as critical for ensuring durability and effectiveness Additionally, marking items (4.5) is highlighted as a major requirement, while minor aspects of corrosion protection (4.4) are also noted The testing process is conducted at the production level without water conditioning, underscoring the importance of proper testing protocols.
Table D.2 – Classification of defects and associated requirements and tests for clevis and tongue stick devices
(4.2) Major Major Major Major Major Major 5.3
(4.2) Major Major Major Major Major Major 5.4
Mechanical: tension (4.2) Critical Critical Critical Critical Critical Critical 5.6.27 a
Mechanical protection (4.3) Minor Minor Minor Minor Minor Minor 5.2
Protection against corrosion (4.4) Minor Minor Minor Minor Minor Minor 5.2
(4.5) Major Major Major Major Major Major 5.2
(4.5) Minor Minor Minor Minor Minor Minor 5.5
Instructions for use (4.6) Major Major Major Major Major Major 5.7.2 a At the production level, only the test with 1,25 F TN is performed
This annex is meant to help users by giving at least the following information
When using attachable devices, it is important to note that there are no specific in-service recommendations, except for the mirror and ammeter holder To prevent damage, these two devices should be stored in a secure location.
IEC 60050-151:2001, International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and magnetic devices