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Chapter-X- Indian Electricity Rules

Indian electricity rules, 1956

Chapter-X
Additional precautions to be adopted in mines oil-fields
 

109. Application of Chapter

(1) The rules in this Chapter shall supply only where energy is used in mines as defined in the Mines Act, 1952 (35 of 1952).

1[(2) In mines and oil fields, the rules in this Chapter shall not apply to apparatus above the ground level except where such apparatus may directly affect the safety of the persons employed in underground, open-cast and oil fields.]

110. Responsibility for observance

(1) It shall be the duty of the owner, agent, engineer or manager of a mine, or of the agent, engineer of any company operating in an oil-field, or of the owner; engineer of one or more drilled wells situated in an oil-field, to comply with and enforce the following rules and it shall be duty of all persons employed to conduct their work in accordance with such rules.

(2) Adequate number of authorised supervisors and electricians shall be duty in every mine or oil-field while energy is being used therein.

2[Explanation:-For the purposes of this rule, the word "engineer" shall--

(a) in the case of a coal mine, have the same meaning as assigned to it in the: Coal Mines Regulations, 1957;

(b ) in the case of a metalliferous mine, have the same meaning as assigned to it in the Metalliferrous Mines Regulations, 1961; and

(c) in the case of an oil mine, mean the "Installation Manager" under the Oil Mines Regulations, 1984.]

111. Notices

112. Plans

(1) A correct plan, on the same scale as the plan kept at the mine in fulfilment of the requirements of the Mines Act, 1952 (XXXV of 1952), shall be available in the office at the mine showing the position of all fixed apparatus and conductors therein, other than lights, telecommunication or signalling apparatus, or cables for the same.

(2) A similar plan, on the scale not less than 25 cm. to a km. {1:4000) shall be kept by the manager or owner of one or more wells in any oil-fields.

(3) A similar plan, on such scale, as the Central Government may direct, showing the position of all electricity supply lines, shall be kept in the office of any licensee or other person transmitting or distributing energy in a mine or oil-field.

(4) The plans specified under the provisions of this rule shall be examined, and corrected as often as necessary to keep them reasonably up-to-date. The dates of such examinations shall be entered thereon by the manager or owner of the mine or wells and such plans shall be available to the inspector, or an Inspector of Mines, at any time.

113. Lighting, communications and fire precautions

(1) In a mine illuminated by electricity, one or more flame safety lamps, or other lights approved by the Inspector of Mines, shall be maintained in a state of continuous illumination in all places where failure of the electric light at any time would be prejudicial to safety.

(2) Efficient means of communication shall be provided in every mine between the point where the switch gear provided under sub-rule (1) of rule 121 is erected and the shaft-bottom or other distributing centres in the mines.

(3) Fire extinguishing appliances of adequate capacity and of an approved type shall be installed and properly maintained in every place in a mine containing apparatus, other than cables, telecommunication and signalling apparatus.

3[(4) In case of mines, minimum clearance above ground of the lowest conductor of overhead lines or overhead cables where dumpers or trackless vehicles are being operated, shall not be less than twelve metres in height from the ground across the road where dumpers or trackless vehicles cross.]

114. Isolation and fixing of transformer, switch gear, etc.

(1) Where necessary to prevent danger of mechanical damage, transformers and switch gear shall be placed in a separate room, compartment or box.

(2) Unless the apparatus is so constructed, protected and worked as to obviate the risk of fire, no inflammable material shall be used in the construction of any room, compartment or box containing apparatus, or in the construction of any of the fittings therein. Each such room, compartment or box shall be substantially constructed and shall be kept 4[dry and illuminated and efficient rentilation] shall be provided for all apparatuses installed therein.

(3) Adequate working space and means of access, clear of obstruction and free from danger, shall so far as circumstances permit, be provided for all apparatuses that have to be worked or attended to and all handles intended to be operated shall be conveniently placed for that purpose.

115. Method of earthing

Where earthing is necessary in a mine it shall be carried out by connection to an earthing system at the surface of the mine, in a manner approved by the Inspector.

116. Protective equipment

1[(1) In the interest of safety, appropriate equipment shall be suitably placed in the mines for automatically disconnecting supply to any part of the system, where a fault, including an earth fault occurs. Fault current shall not be more than 750 milliamps in 550/1100 volt systems for underground/oil fields and 50 amps in 3.3 KV /6.6 KV systems in open cast mines. The magnitude of the earth fault current shall be limited to these specified values by employing suitably designed, restricted neutral system of power supply.]

(2) The operation of the switch gear and the relays shall be recorded daily at the generating station, sub-station or switch-station in a register kept for the purpose.

(3) The effectiveness of the switch gear and the protective 5[system shall always be kept and maintained in working order, shall be checked once every three months] and the result thereof shall be recorded in a separate register kept for the purpose.

117. Earthing metal, etc.

(1) All metallic sheaths, coverings, handles, joint-boxes, switch gear frames, instrument covers, switch and fuse covers or boxes, all lamp-holders (unless efficiently protected by an insulated covering made of fire-resisting material), and the frames and bed-plates of generators, transformers and motors (including portable motors), shall be earthed by connection to an earthing system in the manner prescribed in rule 115.

(2) Where cables are provided with a metallic covering constructed and installed in accordance with clause (d) of rule 122, such metallic covering may be used as a means of connection to the earthing system.

(3) All conductors of an earthing system shall have conductivity , at all parts and at all joints, at least equal to 50 per cent. of that of the largest conductor used solely to supply the apparatus, apart of which it is desired to earth:

PROVIDED that no conductor of an earthing system shall have a cross sectional area less than 0.15 sq. cm., except in the case of the earth conductor of a flexible cable used with portable apparatus where the voltage does not exceed 125 volts, and the cross-sectional area and conductance of the earth-core in not less than that of the largest of the live conductors in the cable.

(4) All joints in earth conductors and all joints in the metallic covering of cables shall be properly soldered or otherwise efficiently made.

(5) No switch, fuse or circuit-breaker shall be inserted in any earth conductor.

(6) This rule shall not apply (except in the case of portable apparatus) to any system in a mine in which the voltage does not exceed 30 volts.

6118. Voltage limits

Energy shall not be transmitted into a mine at a voltage exceeding 11,000 volts and shall not be used therein at a voltage exceeding, 6,600 volts:

(a) Where hand-held portable apparatus is used, the voltage shall not exceed 125 volts;

(b) Where electric lighting is used:-

(i) in underground mines, the lighting system shall have a mid or neutral point connected with earth and the voltage shall not exceed 125 volts between phases;

(ii) on the surface of a mine or in an open cast mine, the voltage may be raised to 250 volts, if the neutral or the mid point of the system is connected with earth and the voltage between the phases does not exceed 250 volts;

(c) Where portable hand-lamps are used in underground working of mine, the voltage shall not exceed 30 volts;

(d) Where any circuit is used for the remote control or electric interlocking of apparatus, the circuit voltage shall not exceed 30 volts:

PROVIDED that in fixed plants, the said voltage may be permitted up to 650 volts, if the bolted type plug is used.]

2119. Transformers

Where energy is transformed, suitable provision shall be made to guard against danger by reason of the lower voltage apparatus becoming accidentally charged above its normal voltage by leakage from or contact with the higher voltage apparatus.]

120.Switch gear and terminals

Switch gear and all terminals, cable-ends, cable-joints and connections to apparatus shall be totally enclosed and shall be so constructed, installed and maintained, as to comply with the following requirements-

(a) all parts shall be of mechanical strength sufficient to resist rough usage;

(b ) all conductors and contact areas shall be of adequate current carrying capacity and all joints in conductors shall be properly soldered or otherwise efficiently made;

(c) the lodgement of any matter likely to diminish the insulation or affect the working of any switch gear shall be prevented;

(d) all live parts shall be so protected or enclosed as to prevent persons accidentally coming into contact with them and to prevent danger from arcs, short-circuits, fire, water, gas or oil;

(e) where there may be risk of igniting gas, coal-dust, oil or other inflammable material, all parts shall be so protected as to prevent open sparking; and

(f) every switch or circuit-breaker shall be so constructed as to be capable of opening the circuit it controls, and dealing with any short-circuit without danger.

121. Disconnection of supply

(1) Properly constructed switchgear for disconnecting the supply of energy to a mine or oil-field shall be provided 7[***] at a point approved by the Inspector . During the time any cable supplying energy to the mine from the aforesaid switch gear is live, a person authorised to operate the said switch gear shall be available within easy reach thereof:

8[PROVIDED that in the case of gassy coal seam of degree II and degree III, the main mechanical ventilator operated by electricity shall be interlocked with the switch gear so as to automatically disconnect the power supply in the event of stoppage of main mechanical ventilator.)

(2) When necessary in the interest of safety , appropriate apparatus suitably placed, shall be provided for disconnecting the supply from every part of a system.

(3) Where considered necessary by the Inspector in the interests of safety, the apparatus specified in sub-rule (2) shall be so arranged as to disconnect automatically from the supply any section of the system subjected to a fault.

(4) Every motor shall be controlled by switch gear which shall be so arranged as to disconnect the supply from the motor and from all apparatuses connected thereto. Such switch gear shall be so placed as to be easily operated by the person authorised operate the motor.

9[(5) Whenever required by the Inspector the motor shall be controlled by a switch gear to disconnect automatically the supply in the event of conditions of over-current, over-voltage and single phasing.)

122. Cables

All cables, other than flexible cables for portable or transportable apparatus, shall comply with the following requirements:-

(a) All such cables (other than the outer conductor of a concentric cable) shall be covered with insulating material and shall be efficiently protected from mechanical damage and supported at sufficiently frequent intervals, and in such a manner as to prevent damage to such cables;

(b) (i) except as provided in clause (c), no cables other than: concentric cables or two-core or multi-core cables protected by a metallic covering, or single-core cables protected by a metallic covering and which contain all the conductors of a circuit shall be used-

(1) where the voltage exceeds 125 volts; or

(2) when an Inspector considers that there is risk of igniting gas or coal-dust or other inflammable material, and so directs;

(ii) the sheath of metal-sheathed cables and the metallic armouring of armoured cables shall be of a thickness not less than that
recommended from time to time in the appropriate standards of the 10[Bureaus of Indian Standards J;

(c) where a medium voltage direct current system is used, two single-core cables may be used for any circuit provided that their metallic coverings are bonded together by earth conductors so placed that. the distance between any two consecutive bonds is not greater than 30 metres measured along either cable;

(d) the metallic covering of every cable shall be-

(i) electrically and mechanically continuous throughout;

(ii) earthed, if it is required by sub-rule (1) of rule 117 to be earthed by a connection to the earthing system of conductivity not less than that of the same length of the said metallic covering;

(iii) efficiently protected against corrosion where necessary;

(iv) of a conductivity at all parts and at all joints at least equal to 50 per cent of the conductivity of the largest conductor enclosed by the said metallic covering; and

(v) where there may be risk of igniting gas, coal-dust, or other inflammable material, so constructed as to prevent, as far as is practicable, the occurrence of open sparking as the result of any fault or leakage from live conductors;

(e) cables and conductors where connected to motors, transformers, switch-gear, and other apparatus, shall be installed so that-

(i) they are mechanically protected by securely attaching the metallic covering to the apparatus; and

(ii) the insulating material at each cable and is efficiently sealed so as to prevent the diminution of its insulating properties;

(f) where necessary to prevent abrasion or to secure gas-tightness, properly constructed glands or bushes shall be provided;

(g) unarmoured cables or conductors shall be conveyed either in meta1lic pipes or metal casings or suspended from efficient insulators by means of non-conducting materials which will not cut the covering and which will prevent contact with any timbering or metal work If separate insulated conductors are used, they shall be installed at least 3.75 cm. apart and shall
not be brought together except at lamps, switches and fittings.

123. Flexible cables

(1) Flexible cables for portable or transportable apparatus shall be two-core or multi-core (unless required for electric welding), and shall be covered with insulating material which shall be efficiently protected from mechanical injury. If a flexible metallic covering is used either as the outer conductor of a concentric cable or as a means of protection from mechanical injury , it shall not be used by itself to form an earth conductor for such apparatus, but it may be used for that purpose in conjunction with an earthing core.

(2) Every flexible cable intended for use with portable or transportable apparatus shall be connected to the system and to such apparatus by properly constructed connectors:

PROVIDED that for high voltage machines a bolted type connector shall be used and the trailing cable shall be suitably anchored at the machine end:

3[PROVIDED FUR1HER that where there are space limitation for multiple on-board motors and equipment for transportable or portable machines, direct entry flexible cable with elastometric ceiling rings, compression gland, packing gland or sealing box which does not alter the flame proof property may be permitted if a cable entry can accept any sealing right with same outside diameter but different internal dimension, the ring shall have a minimum uncompressed axial height of 20 mm for circular cables of diameter not greater than 20 mm and 25 mm for circular cables of diameter greater than 20 mm. ]

(3) At every point where flexible cables are joined to main cables, a 11[ circuit breaker] shall be provided which is capable of12[automatically] disconnecting the supply from such flexible cables.

(4) Every flexible cable attached to a portable or transportable machine shall be examined periodically by the person authorisd to operate the machine, and, if such cable is used underground, it shall be examined at least once in each shift by such person. If such cable is found to be damaged or defective, it shall forthwith be replaced by a cable in good condition.

13[(5) If the voltage of the circuit exceeds low voltage, all flexible cables attached to any transportable apparatus shall be provided with flexible metallic screening or pliable armouring and cables of portable apparatus shall be provided with flexible
metallic screening on all the power and pilot cores:

PROVIDED that the provision of this sub-rule shall not apply to flexible cables attached to any transportable apparatus used in open cast mines where reeling and unreeling of such cables is necessary as per design features of the equipment.]

(6) All flexible metallic screening or armouring specified in sub-rule (5) shall comply with the provisions of rule 122(d) :

PROVIDED that in the case of separately screened flexible cables the conductance of each such screen shall not be less than 25 per cent of that of the power conductor and the combined conductance of all such screens shall in no case be less than that of 0.15 sq. cm. copper conductor.

13[(7) Flexible cable exceeding ninety metres in length shall not be used with any portable or transportable apparatus:

PROVIDED that such flexible cable when used with coal cutting machines or cutter or loader or armoured face conveyor for long wall operation, or with shuttle cars or load haul dumper or cutter loader or all alike equipment, for development and de-pillaring operation, shall not exceed two hundred and fifty metres in length:

PROVIDED FURTHER that the aforesaid cable in case of an open cast mine when used with electrically operated heavy earth moving machinery shall not exceed three hundred metres in length and for bucked wheel excavator at 11 KV shall not exceed one thousand metres in length. ]

(8) Flexible cable, when installed in a mine, shall be efficiently supported and protected from mechanical injury.

(9) Flexible cables shall not be used with apparatus other than portable or transportable apparatus.

(10) When flexible cables are used they shall be detached or otherwise insulated from the source of supply when not in use, and arrangements shall be made to prevent the energising of such cables by unauthorized persons.

124. Portable and transportable machines

The person authorised to operate an electrically-driven coal-cutter, or other portable or transportable machine, shall not leave the machine while it is in operation and shall, before leaving the area in which such machine is operating, ensure that the supply is disconnected from the flexible cable which supplies the machine. When any such machine is in operation, steps shall be taken to ensure that the flexible cable is not dragged along by the machine:

14[PROVIDED that all portable and transportable machines used in underground mines shall operate on remote control from the concerned switch gear with Pilot Core Protection. ]

125. Sundry precautions

(1) All apparatuses shall be maintained reasonably free from dust, dirt and moisture, and shall be kept clear of obstruction.

(2) All apparatuses other than portable and transportable apparatus shall be housed in a room, compartment or box so constructed as to protect the contents from damage occasioned by falling material or passing traffic.

(3) Inflammable or explosive material shall not be stored in any room, compartment, or box containing apparatus, or in the vicinity of any apparatus.

(4) Should there be a fault in any circuit, the part affected shall be made dead without delay, and shall remain so until the fault has been remedied.

(5) While lamps are being changed the supply shall be disconnected.

(6) No lamp-holder shall be in metallic connection with the guard or other , metal work of a portable hand-lamp.

(7) The following notices, in Hindi and local language of the district, so designed and protected as to be easily legible at all times, shall be exhibited:-

(a) at all places where electrical apparatus is in use, a notice forbidding un-authorised persons to operate or otherwise interfere with such apparatus;

(b) at those places in the interior or at the surface of the mine where a telephone or other means of communication is provided, a notice giving full instructions to persons authorised to effect the disconnection, at the surface of the mine, of the supply of energy to the mine.

(8) All apparatuses, including portable and transportable apparatus, shall be operated only by those persons who are authorised for the purpose

(9) Where a plug-and-socket-coupling other than of bolted type is used with flexible cables, an electrical inter-lock or other approved device shall be provided to prevent the opening of the coupling while the conductors are live.

15126. Precautions where gas exists

 (1) In any part of a coal-seam of the first degree gassiness--

(a) all cables shall be constructed, installed, protected, operated and maintained in such a manner as to prevent risk of open sparking;

(b ) at anyplace which lies in-bye of the last ventilation connection, all 10[signalling, telecommunication and remote control] circuits shall be so constructed, installed, protected, operated and maintained as to be intrinsically safe;

(c) all apparatuses including portable and transportable apparatus including lighting fittings used at any place which lies in-bye of the last ventilation connection shall be flame-proof:

3[PROVIDED that electrically operated or battery operated portable or transportable apparatus such as shuttle car, men or material transporting equipment of increased safety type 'e' shall be permitted at any place with suitable monitoring devices for detection of gases, if any.]

(2) At any place which lies in any part of a coal-seam of second and third degree gassiness-

(a) all 10[signalling, telecommunication and remote control] circuits shall be so constructed, installed, protected, operated and maintained as to be intrinsically safe;

(b ) all cables shall be constructed, installed, protected, operated and maintained in such a manner as to prevent risk or open sparking;

(c) all apparatus, including portable and transportable apparatus used at any place within 90 metres of any working face or go in case of a second degree gassymine and within 270 metres of any working face or goaf in case of third degree gassy mine or at any place which lies in-bye of the last ventilation connection or in any return airways shall be flame-proof;

(d) all electric lamps shall be enclosed in flame-proof enclosures.

(3) In any oil-mine or oil-field, at any place within the Danger Areas-

(a) all 10[signalling, telecommunication and remote control} circuits shall be so constructed, installed, operated, protected and maintained as to be intrinsically safe;

(b ) all cables shall be so constructed, installed, operated, and maintained as to prevent risk of open sparking;

(c) all apparatuses including portable and transportable apparatus shall be flame-proof;

(d) all electric lamps shall be enclosed in flame-proof enclosures.

(4) In any coal-seam of degree second and third degree gassiness or the danger zone of oil-mine the supply shall be discontinued-

(a) immediately, if open sparking occurs;

(b) during the period required for examination or adjustment of the apparatus, which would necessitate the exposing of any part liable to open sparking;

(c) the supply shall not be reconnected until the apparatus has been examined by the electrical supervisor or one of his duly appointed assistants until the defect, if any, has been remedied or the necessary adjustment made;

(d) a flame safety lamp shall be provided and maintained in a state of continuous illumination near an apparatus (including portable or transportable apparatus) which remains energised and where the appearance of the flame of such safety lamps indicates the presence of inflammable gas, the supply to all apparatus in the vicinity shall be immediately disconnected and the incident reported forthwith to an official of the mine,14[and such apparatus shall be interlocked with the controlling switch in such a manner as to disconnect power supply automatically in the event of percentage of inflammable gas exceeding one and one quarter in that particular district:]

PROVIDED that where 16[apparatus] for automatic detection of the percentage of inflammable gas or vapour are employed in addition to the flame safety lamps, such 16[apparatus] shall be approved by the Inspector of Mines and maintained in perfect order.

(5) (i) In any part of a coal-sea of any degree of gassiness or in 19[any hazardous] area of an oil-mine, if the presence of inflammable gas in the general body of air is found any time to exceed one and one quarter 4[per cent], the supply of energy shall be immediately disconnected from all cables and apparatus in the area and the supply shall not be reconnected so long as the percentage of inflammable gas remains in excess of one and one quarter 18[per cent].

19[In an oil-mine where concentration of inflammable gas exceeds 20% of its lowest explosive limit, the supply of electric energy shall be cut-off immediately from all cables and apparatus lying within 30 metres of the installation and all sources of ignition shall also be removed from the said area and normal work shall not be resumed unless the area is made gas-free:]

18[PROVIDED that such disconnection shall not apply to intrinsically safe environmental monitoring scientific instruments. ]

(ii) Any such disconnection or reconnection of the supply shall b~ noted in the logsheet which shall be maintained in the form set out in Annexure XII and shall be reported to the Inspector.

(6) The provisions of this rule shall apply to any metalliferrous mine which may be notified by the Inspector of Mines if inflammable gas occurs or if the Inspector of Mines is of the opinion that inflammable gas is likely to occur in such mine.

Explanation: For the purpose of this rule

 (1) The expressions "coal-seam of first degree gassiness", "coal-seam of second degree gassiness", "coal-seam of third degree gassiness" and " flame-proof apparatus", shall have the meanings respectively assigned to them in the Coal Mines Regulations, 1957.

(2) The following areas in an oil-mine or oil-field shall be known as 1[hazardous] areas, namely- .

(a) an area of not less: than 90 metres, around an oil-well where a blowout has occurred or is likely to occur, as may be designated by the engineer-in-charge or the senior-most official present at the site;

(b ) an area within 90 metres of an oil-well which is being tested by open flow;

(c) an area within 15 metres of

 (i) a producing well-head or any point of open discharge of the crude there from or other point where emission of 21[hazardous] atmosphere is normally likely to arise, or

(ii) any wildcat or exploration well-head being drilled in an area where abnormal pressure conditions are known to exist, or

(iii) any exploration or interspersed well-head being drilled in the area where abnormal pressure conditions are known to exist, or

(d) any area within 4.5 metres of

(i) any producing well-head where a closed system of production is employed such as to prevent the emission or accumulation in the area in normal circumstances of a 20[hazardous ] atmosphere; or

(ii) exploration or interspersed well-head being drilled in an area where the pressure conditions are normal and where the system of drilling employed includes adequate measures, for the prevention in normal circumstances of emission or accumulation within the area of a 20[hazardous] atmosphere; or

(iii) an oil-well which is being tested other than by open flow.

Explanation: For the purposes of clause (d) 20[hazardous] atmosphere means an atmosphere containing any inflammable gases or vapours in a concentration capable of ignition.

21[(e) all appliances, equipments and machinery that are or may be used in zone 0, zone 1 and zone 2 hazardous areas shall be of such type, standard and make as approved by the Inspector by a general or special order in writing.

Explanation :

(i) "zone 0 hazardous area" means "an area in which hazardous atmosphere is continuously present" ;
(ii) "zone 1 hazardous area" means "an area in which hazardous atmosphere is likely to occur under normal operating conditions" 
(iii) "zone 2 hazardous area" means "an area in which hazardous atmosphere is likely to occur only under abnormal operating conditions."]

127. Shot-firing

 (1) When shot-firing is in progress adequate precautions shall be taken to protect apparatus and conductors other than those used for shot-firing from injury.

(2) Current from lighting or power circuits shall not be used for firing shots.

(3) The provisions of rule 123 shall apply in regard to the covering and protection of shot-firing cables, and adequate precautions shall be taken to prevent such cables touching other cables and apparatus.

128. Signaling

Where electrical signaling is used-

(a) adequate precautions shall be taken to prevent signal and telephone wires coming into contact with other cables and apparatus;

(b ) the voltage used in anyone circuit shall not exceed 30 volts; and (c) contact-makers shall be so constructed as to prevent the accidental closing of the circuit;

8[(d) bare conductors, where used shall be installed in suitable insulators.]

129. Haulage

Haulage by electric locomotives on the over-head trolley-wire system, at medium or low voltage, and haulage by storage battery locomotives, may be used with the prior consent in writing of the Inspector, and subject to such conditions as he may impose in the interests of safety.

130. Earthing of neutral points

Where the voltage of an alternating current system exceeds 30 volts, the neutral or mid-point shall be earthed by connection to an earthing system in the manner prescribed in rules 115:

PROVIDED that when the system concerned is required for blasting and signalling purposes, the provisions of this rule shall not apply:

8[PROVIDED FURTHER that in case of unearthed neutral system adequate protection shall be provided with the approval of the Inspector.]

15131. Supervision

(1) (i) One or more electrical supervisors as directed by the Inspector shall be appointed in writing by the owner, agent or manager of a mine or by the agent or the owner of one or more wells in an oil-field to supervise the installation.

(ii) The electrical supervisor so appointed shall be the person holding a valid Electrical Supervisor's Certificate of Competency, covering mining installation issued under sub-rule (1) of rule 45.

(iii) If the Inspector considers necessary for the compliance with the duties specified in this rule, he may direct the owner or agent of the mine to appoint one or more electricians who shall be persons holding licence under sub-rule (1) of rule 45.

(2) Every person appointed to operate, supervise, examine or adjust any apparatus shall be competent to undertake the work which he is required to carry out as directed by the engineer.

(3) The electrical supervisor shall be responsible for the proper performance of the following duties, by himself or by electricians appointed under sub-rule (1):

(a) through examination of all apparatuses (including the testing of earth conductors and metallic coverings for continuity) as often as may be necessary to prevent danger;

(b ) examination and testing of all new apparatuses, and of all apparatus, re-erected in the mine before it is put into service in a new position.

(4) In the absence of any electrical supervisor for more than three days, the owner, agent or manager of the mine or the agent or owner 'of one or more oil-wells in an oil-fields, shall appoint in writing as substitute electrical supervisor.

(5)(i) The electrical supervisor or the substitute electrical supervisor appointed under sub-rule (4) to replace him shall be personally responsible for the maintenance at the mine or oil-field, of a log-book made up of the daily log-sheets prepared in the form set out in Annexure XII.

(ii) The results of all tests carried out in accordance with the provisions of sub-rule (3) shall be recorded in the 1og-sheets prepared in the form set out in Annexure XIL ]

132. Exemptions

The provisions of rules 110 to 128 (both inclusive) and rule 131 shall not apply in any case where, on grounds of emergency or special circumstances, exemption is obtained from the Inspector. In granting any such exemption the Inspector may prescribe such conditions as he thinks fit.


1 Substituted by GSR 112, dt.22-3-2000, w.e.f. 1-4-2000.
2 Substituted by GSR 45, dt. 1-1-1993,w.e.f. 23-1-1993.
3 Inserted by GSR 274, dt.10-7-2002, w.e.f. 20-7-200-.
4 Substituted by GSR 45, dt.1-1-1993, for "dry and efficient ventilation".
5 Substituted by GSR 45, dt.1-1-1993, for "system shall be checked once in three months".
6 Substituted by GSR 361, dt.19-3-1983, w.e.f. 7-5-1983. 
7 Words "at the surface of the mine or oil-field", omitted by GSR 45, dt.1-1-1993.
8 Inserted by GSR 45, dt.1-1-1993, w.e.f. 23-1-1993.
9 Inserted by GSR 137, dt. 29-1-1983, w.e.f.l2-2-1983.
10 Substituted by GSR 466, dt.18-7-1991, w.e.f.17-8-1991.
11 Substituted by GSR 466, dt. 18-7-1991, w.e.f. 17-8-1991, for word "switch".
12 Substituted by GSR 466, dt.18-7-1991, w.e.f. 17-8-1991, for word "entirely".
13 Substituted by GSR 274, dt.10-7-2002, w.e.f. 20-7-200-..
14 Added by GSR 45, dt.1-1-1993, w.e.f. 23-11-1993.
15 Substituted by GSR 253, dt.19-2-1981, w.e.f. 7-3-1981. 
16 Word "appliances" substituted by GSR 45, dt.1-1-1993, w.e.f. 23-1-1993.
17 Substituted by GSR 466, dt. 18-7-1991 for "a danger".
18 Added by GSR 466, dt. 18-7-1991.
19 Inserted by GSR 45, dt.1-1-1993. 
20 Substituted by GSR 466, dt.18-7-1991.
21 Inserted by GSR 466,dt.18-7-1991.

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