The second paragraph before operation, the surface of the rod should be wiped clean with a clean dry cloth, so that the surface of the rod is dry and clean;
The third paragraph The operator's hand grip shall not be over the ring;
The fourth paragraph The specification of insulating rods must be conform to the voltage level of the equipment to be operated, and must not be taken arbitrarily;
Section 5 In order to prevent larger currents from being generated due to the moisture of the insulating rod, endangering the safety of the operator, insulating gloves should be worn when pulling the disconnecting switch closed with the insulating rod or pulling the disconnecting switch and circuit breaker closed via the drive mechanism;
Section 6 When using the insulating rod in rainy days, a certain number of insulating parts should be installed with rain cover to ensure that the wet flash voltage is qualified. When operating outdoor high-voltage equipment, insulating boots should also be worn;
Section 7 When the grounding resistance of the grounding network does not meet the requirements, insulating boots should also be worn for operation in sunny days, in order to prevent the harm of contact voltage and step voltage;
Section 8 The insulated poles should be uniformly numbered, and stored in special wooden racks;
Section 9 The insulated poles should be subjected to an electrical test once a year, and the standards are as follows:
Section 9 The insulated poles should be electrically tested once a year.
Voltage level (kV) cycle Test length (m) Industrial frequency withstand voltage (kV) time (min)
10 Every year
One time 0.7 45 1
35 0.9 95
110 1.3 220
220 2.1 440
Article 5 Precautions on the use of testing apparatus<
The first paragraph of the power detector pen before use, should be tried in the electric parts, check whether the power detector pen is intact, in order to prevent misjudgment due to the failure of the power detector pen caused by electric shock accident;
The second paragraph of the low-voltage power detector pen because there is no high-voltage detector of the insulating part, so it is never allowed to carry out the power detection in high-voltage electrical equipment or lines, in order to avoid electric shock accident, can only be used in the range 100-500V Can only be used in the range of 100-500V.
The third section of the checker test standards
Starting voltage test: high-voltage electrode composed of a metal sphere, in the 1m space should not be placed in the range of other objects, the contact electrode will be checking the electrode and a pole of grounded AC voltage of the high-voltage electrode contact, and gradually increase the high voltage electrode of the voltage, when the checker sends out the "voltage exists! "signal, such as" sound and light "indication, record the starting voltage, such as the voltage in the (0.15 ~ 0.4) times the rated voltage, the test is considered to pass.
Frequency withstand voltage test:: high-voltage test electrodes are arranged in the working part of the insulating rod, the length between the high-voltage test electrode and the grounding electrode is the length of the test, according to the provisions of Table 1 to determine the distance between the two electrodes, such as in the insulating rod between the metal connection, the distance between the two test electrodes should be added to the length of the metal parts on the value of the insulating rod should be a certain distance in order to facilitate the observation of the test situation. The distance between the insulating poles shall be kept at a certain distance to facilitate observation of the test condition. The grounding pole and the high-voltage test electrode is wrapped in a 50mm wide metal foil or wire.
For each voltage level of the insulating rod, apply the corresponding voltage. For 10 ~ 220kV voltage level insulated pole, pressurization time 1min; for 330 ~ 500kV voltage level insulated pole, pressurization time 5min. slowly increase the voltage, in order to be able to accurately read on the instrument, to reach 0.75 times the value of the test voltage from the test voltage, 2% per second test voltage rate to the specified value, keep the corresponding time, and then quickly reduce the voltage, but can not be suddenly cut off, the test of each insulated pole, the insulated pole and high voltage test electrode with a width of 50mm foil or wire wrapped. Cutting off, the test should not occur in the insulating rod flashover or breakdown, after the test insulating rod should be no discharge, burn marks, should not be hot. If the voltage level of the test transformer does not meet the test requirements, can be segmented test, can be divided into up to 4 segments, segmented test voltage should be the overall test voltage divided by the number of segments and then multiplied by 1.2 times the coefficient.
Article 6 Precautions for the use of insulating gloves
The first paragraph should be checked before use to see if it exceeds the effective period of use;
The second paragraph Before use, an external inspection should be carried out to see whether the rubber is intact, to see whether the surface is damaged, abraded, scratches, etc., and to do the crimping test to be free from air leakage;
The third paragraph When using the insulating gloves, the cuffs of the outerwear should be placed The gloves should be put into the elongated part of the gloves;
The fourth paragraph Because of the electrical requirements of the insulated gloves, so can not be used for medical or chemical gloves instead of insulated gloves, but also can not be insulated gloves for other purposes;
The fifth paragraph Insulated gloves should be wiped clean after use, drying, it is best to sprinkle some talcum powder, so as to avoid adhesion;
The sixth paragraph Insulated gloves should be a unified number, the minimum number of insulated gloves used on site should be kept in the same place. The insulating gloves used on site should be kept at least two pairs;
Section 7 The insulating gloves should be stored in a dry, cool place, stored in a special cabinet, placed separately from other tools, and no objects should be piled up on them to avoid puncturing the gloves;
Section 8 Test standard
Inside the tested gloves, put water with resistivity not more than 100Ω, such as tap water, and then immerse it in the water containing the same amount of water. Then immersed in a metal basin containing the same water, so that the glove inside and outside the level of the same height, the glove should be 90mm of the exposed part of the water, which should be wiped dry, with a constant rate of voltage to the value of the voltage specified in Table 10, keep 1min, should not occur electrical breakdown, measurement of the leakage current, and the value to meet the values set out in the table below, it is considered to be a pass test.
Voltage level Period frequency withstand voltage Time Leakage current
High voltage Every six
months 8 kV 1 min ≤9 mA
Low voltage 2.5 kV ≤2.5 mA
Article 7 Precautions for the use of insulating boots
Paragraph 1 Before using the insulating boots, the insulating boots shall be checked to see whether the boots are in good condition and whether they are over the effective The insulating boots shall be numbered uniformly, and at least two pairs of insulating boots shall be kept for on-site use;
Section 3 The insulating boots shall not be worn if they fail the test;
Section 4 The insulating boots shall be stored in a dry and cool place, and shall be stored in a special cabinet;
Section 5 The insulating boots shall not be used as rainboots or for any other purposes, nor shall other non-insulating boots be used instead of the insulating boots;
Section 6 The insulating boots shall not be used as rainboots or for any other purposes. Insulated boots can not be used as a substitute for insulated boots;
Section 6 Test standard:
A metal piece with the same shoe number as the specimen is put into the shoe as the inner electrode, the metal piece is filled with a metal ball with a diameter of not more than 4mm, and the height of which is not less than 15mm, and the external wire is welded with a piece of copper with a diameter of not more than 4mm, and buried in the metal ball. The external electrode is placed in the water-impregnated sponge inside the metal device,
The voltage rises from zero to 75% of the specified voltage value at a speed of 1kV/s, and then rises to the specified voltage value at a speed of 100V/s. When the voltage rises to the voltage specified in the table below, it is kept for 1min, and then the milliammeter current value is recorded. If the current value is less than 7.5mA, the test is considered to be passed
Voltage level Period frequency withstand voltage Time Leakage current
High voltage Every six months 15 kV 1 min ≤7.5 mA
Article 8 Precautions for the use of portable grounding wires
The first paragraph Selection of grounding wires shall be selected in accordance with the needs of the short-circuit capacity of the location where they are to be used;
Section 2 All grounding wires shall be numbered uniformly, and a record system of use shall be established and kept by special persons; after the grounding wires are numbered uniformly, they shall be stored in special grounding wire racks and placed in the order of numbering;
Section 3 The sequence of mounting and dismounting of the portable grounding wires shall be correct;
Section 4 The mounting of the grounding wires shall be carried out by two persons;
Section 5 The portable grounding wires shall be checked thoroughly before each mounting; the soft copper wires shall be checked thoroughly before each mounting; the soft copper wires shall be checked thoroughly before each mounting. Before the detailed inspection, soft copper wire without damage, the connection should be firm, damaged grounding wire should be repaired or replaced in a timely manner, prohibit the use of non-compliance with the provisions of the conductor for the grounding wire or short-circuit line;
Section 6 The portable short-circuit grounding wire through the short-circuit current, generally should be scrapped;
Section 7 test standards:
Group DC resistance test is used for the assessment of the Carrying short-circuit grounding wire nose and sinking clamp and multi-stranded copper soft conductor contact between the good or not. At the same time, can also assess whether the cross-section area of multi-stranded copper soft conductor meets the requirements, group DC resistance test using DC voltage drop measurement, commonly used measurement method for the current-voltmeter method, the test current should be ≥ 30A.
Grounding wire group DC resistance test, should be the first measurement of the length of the two between the two noses, according to the measured DC resistance value, calculate the resistance value of each meter, and its value If it meets the provisions of the following table, it is qualified.
Group DC resistance test
Period Requirements Description
Not more than 5 years Measurement of DC resistance between the noses, for 225, 35, 50, 70, 95, 120 mm2 of various cross-sections, the average resistance per meter is less than 0.79, 0.56, 0.40, 0.28, 0.21, 0.16 milliohms of the same Batch sampling, not less than 2, terminal nose and soft wire crimping should do the test
Insulated rod test
Voltage level (kV) cycle Test length (m) Frequency withstand voltage (kV) Time (min) Test voltage added between the protective ring and the fastening head
10 Every 4 years
Once - 45 1
35 - 95
110 - 220
220 - 440
Section 3 Hand-held power tools
Article 9 Hand-held power tools include electric drills, electric sanding wheels, electric saws and cutting machines.
Article 10 The operator should have a detailed understanding of the performance of the tool and master the correct use of the method.
Article 11 The tool is issued or retrieved, the custodian must carry out a daily inspection, before use, the user must carry out a daily inspection; daily inspection should include at least the following items:
Section 1 Shell, handle without cracks and breakage.
The second paragraph of the protective wire is connected correctly, firmly and reliably;
The third paragraph of the power cord is intact;
The fourth paragraph of the power switch action is normal, flexible, free of defects, rupture;
The fifth paragraph of the mechanical protection device is intact;
The sixth paragraph of the tool rotating part of the rotation of the flexible, brisk, non-obstructive phenomenon;
The seventh paragraph The electrical protection device is intact;
Section 8 If the tool has any faults such as damaged insulation, cracked power cord sheath, detached protective cord, cracked plug and socket, or mechanical damage detrimental to safety, it shall be repaired immediately, and shall not be used further until it is repaired.
Article 12 Tools must be inspected at least once a year by a full-time employee.
Article 13 of the regular inspection of tools in addition to the daily inspection of the project, but also must measure the insulation resistance of the tools. The insulation resistance shall not be less than the value specified in the following table:
Measuring unit Insulation resistance (MΩ)
Class Ⅰ tools Class Ⅱ tools Class Ⅲ tools
Between the electrified parts and the shells 2 7 1
Section 4 Safety gear for working at height
Article 14 Helmet
Section 1 The adjusting band behind the hat shall be adjusted to a suitable position according to the shape of one's own head before wearing a safety helmet. Before wearing the helmet, adjust the adjusting strap at the back of the helmet to fit the shape of your head, and then fasten the elastic band inside the helmet securely. The elasticity of the cushioning is adjusted by the strap. The vertical distance between the top of the person's head and the top of the helmet body is generally between 25 and 50mm, at least not less than 32mm. This will ensure that when the impact is suffered, the cap body has enough space for buffer, usually also conducive to the ventilation between the head and the cap body
Second paragraph The test of the crash helmet: 3kg heavy steel ball, from a height of 5m vertical free fall impact is not destroyed, the test should be made of wood to make a semi-circular human head model, the test of the helmet within the cushioning elasticity of the belt is tied on the model. This method can be used to test helmets made of various materials. The test cycle is once a year.
Article 15: Inspection standards for safety belts
Paragraph 1: Components are complete, no shortages, no injuries;
Paragraph 2: Ropes and braided belts have no brittle cracks, broken strands, kinks or deterioration;
Paragraph 3: Leather fittings are in good condition and have no injuries or deterioration;
Paragraph 4: Metal fittings are free of cracks, welding defects and serious rust;
Paragraph 5: Hook hooks have hooks with tongues that have no holes, but are not damaged.
Section 5 The hooks have flat and level bite, and the safety device is complete and reliable;
Section 6 The live beams of live beams are flexible, the surface is well knurled, and the spacing from the frame meets the requirements;
Section 7 The rivets have no obvious deviation, and the surface is complete;
Section 8 The periodic inspection is qualified, recorded, and not overdue;
Section 9 It is a qualified product, and the function is normal. Functions normally;
The eleventh paragraph safety belt appearance inspection once a month;
The twelfth paragraph safety belt every six months to do a 5min static tensile test (large belt 2205N, small belt 1470N).
Article 16 foot buckle inspection standards
Section 1 Metal base material and weld seams are free of cracks as well as visually detectable deformations;
Section 2 Rubber anti-slip strips are intact and free of cracks;
Section 3 Belt is intact and free of mold, cracks, and serious deformations;
Section 4 Regular inspection, with records;
Section 5 It is a qualified product, and Functions normally;
Section 6 The foot fasteners are inspected once a month for appearance;
Section 7 The foot fasteners are subjected to a 5min load test (980N) once every six months.
Article 17 Safety Net Inspection Standards
Section 1 Side ropes, net ropes and tendon ropes are free from mold, breakage and serious abrasion, and the connecting parts are firm;
Section 2 The net body is free from serious deformation;
Section 3 The test ropes pass the test according to the regulations, and do not overstay their period.
Article 18 Inspection standards for mobile ladder platforms
Second paragraph Periodic inspection is qualified and recorded, and does not exceed the expiration date;
Third paragraph Wooden and bamboo components are free from fracture and corrosion;
Fourth paragraph Metal components are free from cracks, serious corrosion or deformation, and the connecting parts are in good condition;
Fifth paragraph Ladder feet have anti-slip devices;
Seventh paragraph Mark the permissible load; platform around the guardrail; height of not less than 1.05 meters; lifting mechanism (including steel wire rope) is intact, no serious corrosion;
Section 8 With electric operation, the electrical part of the insulation is qualified, the protective grounding in line with the requirements; Hydraulic operation, hydraulic operating mechanism should be intact;
Section 9 There are regular electrical and mechanical parts (including steel wire rope) for the Records of inspection, and use within the inspection cycle.
The tenth paragraph test methods and standards
The ladder will be placed in the working state, the angle of 75 ° ± 5 ° with the ground, in the ladder's regular standing parts, the ladder tread to apply a load of 1765N, the tread force area should be 10cm wide, does not allow impact loading, the test lasts for 5min under this load, unloading, the ladder components should not be permanently deformed And damage.
Section 5: Lifting safety equipment
Article 19: Hand ladder
Section 1: Hand ladder shall establish maintenance records, and keep all parts in normal condition.
Second paragraph before use should carefully check the safety and reliability of all parts, the rotating parts should be flexible; brake should be reliable; chain without broken links and cracks, open welding; suspended hand chain hoist support points such as hanging rope and bracket, beam, rings, etc. should be strong and firm, and its load-bearing capacity should be compatible with the lifting capacity of the hoist.
The third paragraph before lifting should verify the weight of the heavy object, select the appropriate tonnage of the hoist, prohibit overloading; before operation should be test hoisting, check the reliability of the brake.
The fourth paragraph before operation should be lifted slowly, to be lifting chain after tightening, and then a comprehensive inspection of the equipment and the weight of the force situation, pay special attention to lifting chain whether there is a kink phenomenon, found that the kink must be adjusted, and after checking the anomaly can continue to work.
The fifth paragraph pull the chain should be uniform force, do not pull, if you can not pull the chain should be stopped immediately to identify the cause, troubleshooting. 10 tons or more (including 10 tons) gourd chain allows two people to pull together, the rest of the small tonnage is allowed to pull only one person. It is strictly prohibited to use 2 or more than 2 sets of hand chain hoist at the same time lifting heavy objects.
Section 7 lifting process if you need to temporarily suspend the weight, should be hand chained to the lifting chain; if you need to stay for a long time, should be under the weight of the pad on the wooden pier, do not use the hand chain hoist for a long time to fix the suspension, to prevent the self-locking mechanism fails to occur accidents.
Section 8 It is strictly prohibited to work or activities under the lifting of heavy objects. The operator shall not stand on top of the heavy load during operation, nor shall he leave the site by keeping the heavy load in the air after lifting it.
The ninth paragraph when tilted or horizontal use, to reduce the load 50% use, and pay attention to adjust the direction of the zipper, so that it follows the direction of the sprocket, to prevent the hand zipper out of the groove or chain; horizontal use, but also in the entrance of the zipper should be added to the pad to support the chain.
The eleventh paragraph after the use of the hoist should be cleaned up, rotating parts and lifting chain lubrication, stored in a dry place.
The twelfth paragraph should be open fire operations around the chain of the hand chain hoist to take protective measures to prevent damage to the chain due to cutting and welding.
Article 20: Fiber rope slings and harnesses
Section 1: Fiber rope slings and harnesses are highly elastic and should not be loosened until the slings are completely unloaded.
Secondly, they should be used to avoid contact with hot surfaces and to prevent welding sparks and gas cutting flames from burning the slings.
Third paragraph The safety factor shall be not less than 6 times when in use, and the coefficient of hanging method shall be taken into consideration.
Section 4 When lifting angular objects, the slings shall be padded to protect them.
Section 5 Contact with chemicals should be avoided, and it should be flushed with water frequently.
Article 21 Jacks
Section 1 The jacks must be checked before use, and the parts should be flexible and free of plastic deformation and abnormalities.
The second paragraph more than one jack joint support the same weight, to unify the command, synchronized rise or fall, and the lifting capacity of each jack should not be less than 1.2 times the calculated load.
The third paragraph jacks should be used in a flat and solid place, the bottom should be padded solid pads to increase the support area, the top and object contact should be padded with wooden boards, both to prevent the heavy objects are squeezed, but also to prevent the jacks from slipping off when pressurized.
The fourth paragraph high or lateral use of the jack, in order to prevent the slip fall injury, should be hemp rope or wire, etc. tethered to the lifter, tied in a secure place.
The fifth paragraph shall not be used to lengthen the length of the handle and overload, shall not exceed the rated jacking height.
Sixth paragraph load should be perpendicular to the axis of the jack, the application point of the jack should be selected in the jacked object has enough strength of the part.
Section 7 Starting the jack should be smooth, rhythmic rise at a uniform speed and slow descent.
Section VIII lifting heavy objects should be in the jack on both sides of another pier to prevent accidents. Mat pier and the bottom of the weight of the net distance should always be maintained within 50 millimeters, that is, should be with the top with the pad.
The ninth paragraph jack shall not be long time force, jacking in place should be used after the pier support.
Article 22, pulley and pulley
Section 1, the use of the rated lifting capacity shall not be exceeded, the diameter of the pulley shall not be less than 8 times the diameter of the wire rope used
Second section of the pulley should be securely fixed, hooks, rings, etc. shall not be deformed, cracks, pulleys, axes, bushings and clamps shall be in good condition, pulleys are rotating and flexible.
The third paragraph of the pulley's anti-dislodgement slot device should be reliable, when used in the root of the pulley to increase the anti-dislodgement wire rope protection ring.
The fourth paragraph in the direction of force changes or high place operation, should not use the hook type pulley, should be used ring type pulley, in order to prevent unhooking.
Section 5 In the tensioning state, the minimum distance between the upper and lower pulleys of the pulley set should be maintained at about 700~1200mm, and should not be too small.
Section 6 When wearing multi-wheel pulley, pay attention to the wire rope is not allowed to twist to prevent rotation.
The seventh fixed pulley on the buckle as far as possible to use double buckle, in order to prevent the rotation of the pulley. If you use a single buckle, you can use a long iron pipe, etc. through the pulley to prevent rotation.
The eighth section of the pulley in the lifting before the slow force, to be tightened after the sling, check whether there is no card rope, rope, off the slot phenomenon, the fixed pulley and pulley place there is no loosening phenomenon, check the problem-free before operation.
Article 23 Hooks
Section 1: Before using a hook, the rated lifting capacity marked on the hook shall be checked and shall not be less than the actual lifting capacity.
Second paragraph The hooks shall be inspected frequently during use to ensure that the surface of the hooks is smooth, free of cracks, scoring, rust and flexible in rotation.
Section 3 When using the hook, the sling should be hung to the bottom of the hook.
Section 4 Cast hooks shall not be used.
Section 5 Particular attention shall be paid to checking the dangerous sections of the hook for wear, cracks and other damage.
Article 24 WIRE ROPE SLINGS
Section 1 A self-inserting wire rope sling, whether inserted in line or in flower, shall have a minimum distance between the inserted braid portions of the buckles at each end of the rope which shall not be less than 10 times the nominal diameter of the wire rope.
The second steel wire rope before use should be based on the weight of the object and lifting mode of reasonable selection of sling specifications, is strictly prohibited to exceed the permissible tension, and at the same time should avoid the impact of the force, shall not use a single sling for lifting.
The third paragraph in the lifting of angular fast mouth of the object should be added to the package mat, not allowed to wire rope sling direct contact with these objects, to prevent cut.
The fourth paragraph when lifting the wire rope sling limbs between the angle should not be too large, generally not allowed to exceed 90?, special circumstances, the maximum not allowed to exceed 120?
Section 5 wire rope slings are prohibited and charged metal contact or welding, electric arc and other injuries, can not be avoided when insulation measures should be taken.
Sixth paragraph before use should carefully check the wire rope sling wear, corrosion and broken wire and other damage, to reach the end of the conditions of the sling is prohibited to use.
Seventh, the main conditions of the wire rope sling scrapped as follows (see "crane rope inspection and scrapping standards GB05972-2006"):
The wire rope in a twisted pitch within the number of broken filaments up to 10% of the total number of wires. Wire rope monofilament surface wear or corrosion amount reaches 40% of the original monofilament diameter. Wire rope diameter reduction exceeds 10% of the original nominal diameter. Broken strand. Wire rope subjected to heat or electrical damage appears obvious color change. Cage-like distortion, rope strand severe extrusion, severe bending, kinking and so on.