Oil Tanks Regulations (Chapter 62:01)

1. Citation.

2. Interpretation.

3. Construction of oil tanks.

4. Access to roof of oil tank

5. Fires.

6. Work on or in an oil tank.

7. Use of gas separator.

8. Precautions when using electricity. c C o ns ent nf Rngineer

10. Pro hibitions.

11. Rules.

12. Regulati ons shall be disp lay ed .

13. Offence.

14. Construction of Regulations. APPENDIX A. APPENDIX n. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 83 [Subsidiary] OIL TANKS REGULATIONS 19/1949. ""d ee m ed to be made under section 29

1. (1) These Regulations may be cited as the Oil Citation. Tanks Regulations. (2) These Regulations shall apply to all oil tanks and gas separators whether they were installed before the date on which these Regulations come into force or after that date.

2. In these Regulations- Interpretation. "Engineer" means Chief Petroleum Engineer; "flash point below 150°F." shall be as determined by the Pensky Martens Closed Cup test. (The standard method of test designated l.P 34/47 in the eighth edition of the Publication "Standard Methods for testing Petroleum and its Products ,. published by the Institute of Petroleum); "gas separator" means any vessel or container used for separating oil from gas , but shall not include bubble towers, dephlegmators or similar refining equipment; "Manager" means the owner of any oil tank or of any gas separator or some responsible person appointed by the owner to act as his agent ; "oil tank" means any tank or receptacle containing "petroleum in bulk" as defined] in section 2 of the Petroleum Ordinance Ch. 26 N o. 2. (1950 Ed.). (now repealed) and/or gas and shall include gas separators; "process vessel" means any receptacle or container which is an integral part of the equipment or installation used in a refining process and through which crude oil and/or its products circulate. * These R egnlations were made under section 28 of the Petroleum Ordinance (C h. 26 No.2 - 1950 Ed.) (now repealed) and continue in force by virtu e of section 29(3) of the Interpretation Ac t (Ch. 3 :0 1). Defined as follow s: "petrol eum in bulk" means crude petroleum, petroleum or dangerou s pet roleum in any vessel or recept acle having a capacity of 300 gallons or more. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 84 Chap. 62:01 Petroleum [Sub sidiar y] Oil Tank s R eg ula tio ns Construction of 3. (1) Oil tanks shall be of sound construction and shall not oil tanks. be constructed of infl ammable mat erial except with th e permission of the Engineer. (2) All oil tanks whose contents have a flash point below 0P 150 and which have a capacity of more than 500 barrels shall be fitted with relief valves of a type approved by the Engineer. Access to roof 4. (1) Access to the roof of an oil tank exceeding 12 feet in of oil tank. height or to a walkway giving access to the roof of any such tank shall be by means of a gently sloping stairway placed wherever possible on the side of the prevailing wind. Such stairway and/or walkway shall be provided with substantial guard rails on each side. (2) The roof of an oil tank exceeding 20 feet in height shall be provided with a substantial metal guard so placed that there will always be a guard between persons carrying out their ordinary duties of dipping or sampling the tank and the nearest perimeter of the tank. (3) The Engineer may in his discretion grant general or special exemption from or modification of any or all the requirements of this regulation if he is satisfied that owing to equipment supply difficulties or other causes it is not practicable to comply with such requirements. Any such exemption and/or modifications granted shall be for a period not exceeding three years and may be renewable from time to time . Pires . S. (1) Effective means of extinguishing or controlling fires shall be provided in respect of each oil tank to the satisfaction of the Engineer. (2) Wherever a fire or explosion occurs in the immediate vicinity of or in any oil tank the Manager shall advise the Engineer within 48 hours and shall forward to the Engineer a report of the circumstances and probable cause of the fire as soon as these have been ascertained. Work on or in 6. (1 ) N o person under the age of 18 years shall w ork on or an oil tank. in an oil tank. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 85 Oil Tanks Re gula tions [Subsidiary] (2) Before any person works, or is permitted to work with a welding apparatus or any other form of fire on a gas or oil line which is in the vicinity of or directly connected to an oil tank, the Manager or a responsible member of his staff shall certify, that it is safe for such work to be commenced. (3) Before work is undertaken inside any oil tank, the Manager, or a responsible member of his staff appointed by him, shall first take £111 possible precautions to clear the tank of gas and shall also, whenever he is able to do so, certify the oil tank has been certified as "gas free" and safe. (4) Unless such oil tank has been certified as gas free and safe, any person who shall enter an oil tank which has been used for the storage of oil and/or gas shall wear a gas mask and shall also wear a life-line, one end of which shall remain outside the tank and be held by another person who must constantly watch the person inside the tank; there shall also be at least two other persons outside the tank in the immediate vicinity to render assistance if required.

7. Save when specially exempted by the Engineer, no gas Use of gas separator. separator shall be used at any pressure above atmospheric unless- (a) it is regularly inspected to ensure that it is in safe condition to work at the required pressure; (b J it is fitted with a pressure gauge to show the working pressure of the separator and with a safety valve set to work at a safe margin of pressure: the safety valve shall be tested at intervals not exceeding one month to ensure that it will act at the required pressure; (c) all glass liquid gauges are fitted with a cover or guard so as to protect persons present should the glass break unless the gauges are so constructed as to be equally safe to persons present whether so protected or not. The inspections and tests required under paragraph (a) or (h) of this regulation shall be carried out by the Manager or a LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 86 Chap. 62:01 Petroleum [Sub sid ia r y] Oil Tank s R eg ula tio ns responsi ble member of his staff appointed by him and the details of such inspections and tests shall be entered in books kept for the purpose and which shall be open to inspection by the Engineer. These books shall comply with the specimen Forms A and B in Appendix "A". Precautions 8. (1) When electricity is used proper precautions shall be when using electricity. taken as regards installation, operation , and maintenance to prevent fire or other hazards to the satisfaction of the Engineer. (2) All conductors, switch gear and apparatus on an oil tank whose contents have a flash point below 150°F shall conform to the Regulations as to the installation and use of electricity made under the Imperial Coal Mines Act, 1911,* Part I (1 Belo w Ground) as set out in Appendix "B". (3) No bare conductors shall be used within 50 feet of any oil tank whose contents have a Flash Point below 150°F and all other apparatus within 100 feet of such tanks shall be so protected that open sparking (as defined in Appendix "B " hereto) is prevented. Consent of 9. Witho ut the consent of the En gineer no oil tank Engineer. whose contents have a Flash Point less than 150°F shall be within 100 feet of- (a) a Public Road or State Trace Reserve ; (h) any building in which fire and/or lights other than enclosed e lectric lights are lisen; (c) any building used or intended to be used for human habitation ; (d ) any boiler excepting that for oil tanks of a capacity of less than 100 barrels storing oil for use as fuel in such boiler, the above distance of 100 feet may be reduced to 50 feet provided they are placed on the side of the boiler away from the prevailing wind; * Repealed and Replaced by the Mines and Quarries Act 1954 (2 & 3 Eliz. 2 c.70) one of the Acts comprised in the Mines and Quarries Acts 1954 to 1971. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 87 Oil Tanks Re gula tions [Subsidiary] (e) any works, plant or machinery provided that for such works, plant or machinery as utilise firing or fire in any form and/or lights other than enclosed electric lights the above distance of 100 feet shall be increased to 150 feet. Process vessels are exempted from the provisions of paragraphs (d) and (e) above provided that they and the boiler, works, plant and/or machinery form part of the same installation.

10. (1) Smoking, the use of firearms , explosives or naked Proh ibition s. lights, the ignition of any material or the bringing of any material liable to spontaneous combustion within 100 feet of an oil tank whose contents have a Flash Point below 150°F is prohibited. (2) The use of internal combustion engines, stationary or otherwise, within 100 feet of an oil tank whose contents have a Flash Point of less than 150°F is only permitted where every precaution is taken to prevent the escape of fire from such engines. (3) Exhaust gases from internal combustion engines shall not be released into the atmosphere within 100 feet of any oil tank whose contents have a Flash Point below 150°F provided that this regulation shall not apply to compression ignition engines, engines of automobiles nor to other internal combustion engines , the exhausts of which are fitted with adequate flame-proof attachments.

11. (1) Every oil tank with a capacity of more than 500 Rules. barrels or group of such tanks whose contents have a Flash Point of less than 1 SO°F shall lie within <In enclosure formed hy <I wall or bank of substantial construction and shall be subject to the following rules: (a) The maximum number of oil tanks permitted to lie inside the same enclosure to be 4- if the capacity of any tank is greater than 40 ,000 barrels, provided also that the total capacity of the group shall not exceed 600,000 barrels. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 88 Chap. 62:01 Petroleum [Sub sidiar y] Oil Tank s Regulations (h) The maximum number of oil tanks permitted to lie inside the same enclosure to be 10- if the capacity of each tank is less than 40,000 barrels and more than 5,000 barrels, provided also that the total capacity of the group shall not exceed 300,000 barrels. (c) The maximum number of oil tanks permitted to lie inside the same enclosure to be 20-ifthe capacity of each tank is not more than 5,000 barrels. (d) The minimum distance between any two oil tanks in the same enclosure measured from tank wall to tank wall shall be half the diameter of the larger. The Engineer may, however, give permission for any smaller distance between two tanks provided that such tanks were erected before the coming into force of these Regulations. (2) The dime nsions of the enclosure shall be so sufficient as to be capable of holding- for 1 tank not less than 100 per cent of the capacity of the tank; for 2 tanks not less than 70 per cent of the capacity of the tanks; for 3 or more tanks not less than 60 per cent of the capacity of the tanks . (3) Subregulations (1) and (2) shall not apply to process vessels or to oil tanks containing gas and/or petroleum products which are in gaseous form at normal temperature and pressure. Regulations 12. A copy of or extracts from these Regulations shall be shall be displayed. displayed in a conspicuous place, where they may be convenien tly read, ncar cuch oil tank or group of oil tanks ; such extracts shall include regulations 5,6 and 10. O ffenc e. 13. Any person acting in contravention of these Regulations is liable on summary conviction to a fine of one thousand, five UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 89 Oil Tanks R egula tio ns [Subsidiary] hundred dollars or in the event of a continuing breach to a fine of seven hundred and fifty dollars for each day that such breach continues.

14. Nothing in these Regulations shall be construed to affect Co nstruction of R egulanons. tanks at petrol filling stations, tanks on vehicles , or drums used for transporting petroleum products or tanks otherwise specially licensed by the Engineer. APPENDIX A OIL TANKS REGULATIONS FORM A R egulation 7. INSPECTION OF GAS SEPARATOR Maker 's name and number Local Number Name of Owner Field Details of Inspection Date of Location of State condition of separator and Signature of Inspe ction Separator what tests were made. Inspec ting Was press ure guage tested Officer LoRD . 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 90 Chap. 62:01 Petroleum [Sub sidiar y] Oil Tanks Regulations OIL TANKS REGULATIONS Regulation 7. F O RM B TESTING OF GAS SEPARATOR SAFETY VALVES Maker s name and number Local Num ber Name of Owner Field Working Safety Working Safety pressure valve Signa- pressure valve Signa- Da te of of Gas lifted tur e of Date of of Gas lifted tur e ot Test Separator at testing Test Separator at testing pounds pounds Officer pounds pounds Officer per sq. per sq. per sq. per sq. inch inch inch inch UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 91 Oil Tanks Re gula tions [Subsidiary] APPENDIX B OIL TANKS REGULATIONS GENERAL REGULATIONS AS TO INSTALLATION Regulation8. AND USE OF ELECTRICITY AT OR NEAR OIL TANKS AND GAS SEPARATORS. *NOTE- The following Regulations are taken from the Regulations made under the Coal NUnes Act, 1911 of the United Kingdom, Part I (1 below ground), with necessary modifications to meet local conditions. The number in brackets thus (117) are the corresponding numbers in the United Kingdom Regulations. Words and terms to which specific meanings have been assigned in the definitions are printed in Italics .

1. (117) It shall be the duty of every owner, agent or manager to comply with and enforce the following Regulations, and it shall be the duty of all workmen and persons employed to conduct their work in accordance with the Re gulations.

2. (11 R) Pressure means the difference of electrical potential between any two conductors or between a conductor and earth as read by a hot wire or electro-static volt-meter. Low Pressure means a pressure in a system normally not exceeding 250 volts where the electrical energy is used. Medium Pressure means a pressure in a system normally above 250 volts but not exceeding G50 volts, where the electrical energy is used. High Pressure means a pressure in a system normally above 650 volts but not exceeding 3 ,000 volts, where the electrical energy is used or supplied. Extra-high Pressure means a pressure in a system normally exceeding 3 ,000 volts , where the electrical energy is used or supplied. * Repealed and Replaced by the Mines and Quarries Act 1954 (2 & 3 Eliz. 2 c.70 ) one of the Acts comprised in the Mine s and Quarries Act s 1954 to 1971. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 92 Chap. 62:01 Petroleum [Sub sidiar y] Oil Tank s R eg ula tio ns System means an electrical system in which all the co nduc tors and apparatus are electrically co nnecte d to a common source of electro-motive force. Concentric System means a system in which the circuit in a conductor or conductors, called the inner conductor , is completed through one or more conducto rs called the outer conductor, arranged so that the inner conductor is insulated, and the outer conductor is disposed over the insulation of, and more or less completely aro und, the inner conductor, Conductor means an electrical conductor arranged to be eler-trir-ally r-onner-ted to £I q,y"tpm Apparatus means electrical apparatus, and includes all apparatus, machines, and fittings, in which conductors are used , or of which they form a part, Circuit means an electrical circuit forming a sys tem or branch of a system, Covered WiTlI insulating marerial means adequate ly covered with insulating material of such quality and thickness that there is no danger , Metall ic Covering means iron or steel armouring, with or without a lead or other metallic sheath as the conditions of the case may require, or an iron or stee l pipe surrounding two or more conduc tors. Bare means not covered with insulating material, Live means electrically charged, Dead means at, or about, zero potential, and disconnected from any live system, Open sp arking means sparking which owing to the lack of adequate provisions for preventing the ignition of inflammable gas external to appara tus would ignite such inflammable gas, Earthed means connected to the general mass of earth in such manner as will ensure at all times an immediate discharge of electrical energy without danger, Eart hing system means an electri cal system in which all the conductors are earthed, UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 93 Oil Tanks Re gula tions [Subsidiary] Switchgear means switches or fuses, conductors and other apparatus in connection therewith . used for the purpose of controlling the current or pressure in any system or part of a system. Danger means danger to health or danger to life or limb from shock. burn or other injury to persons employed, or from fire or explosion attendant upon the generation, transformation, distribution, or use of electrical energy. Use of electricity means the conversion of electricity into mechanical energy, heat or light, for the purpose of providing mechanical energy, heat or light.

3. (123)(c) Adequate working space and means of access clear of obstruction and free from danger shall be provided for all app aratus that has to be worked or attended to by any person, and all handles intended to be operated shall be conveniently placed for that purpose.

4. (124)(a) All apparatus and conductors shall be sufficient in size and power for the work they may be called upon to do, and so constructed, installed, protected, worked and maintained as to prevent danger so far as is reasonably practicable. (h) All insulating material shall be chosen with special regard to the circumstances of its proposed use. It shall be of mechanical strength sufficient for its purpose, and so far as is practicable, it shall be of such a character or so protected as fully to maintain its insulating properties under working conditions of temperature and moisture. (c) Every part of a system shall be kept efficiently insulated from earth, except that- (i) the neutral point of a polyphase system may be earthed at one point only; (ii) the mid-voltage point of any system , other than a conce ntr ic system , may be ea rthed at one point only; and LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 94 Chap. 62:01 Petroleum [Sub sid ia r y] Oil Tank s R eg ula tio ns (iii) the outer conductor of a concentric system shall be ea rthed . (d) Efficient means shall be provided for indicating any defect in the insulation of a syst em.

5. (I 25 )(a ) All metallic sheaths , coverings, handles, jointboxes, switchgear frames, instrument covers, switch and fuse covers and boxes, and all lampholders, unless efficiently protected by an earthed or insulating covering made of fire resisting material and the frames and bedplates ot generators, transtormers, and motors (including portable motors) shall be earthed. (b) Where the cables are provided with metallic covering constructed and installed in accordance with regulation 9(e), such metallic covering may be used as a means of connection to the earth ing system. All the conductors of an earthing system shall have a 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 a part of which it is desired to earth. Provided that no conduc tor of an earthi ng system shall have a cross-sectional area of less than .022 of a square inch. (c) All joints in earth conducrors and all joints to the metallic covering of the cables shall be properly soldered or otherwise efficiently made, and every earth conductor shall be soldered into a lug for each of its terminal connections. No switch, fuse or circuit breaker shall be placed in any earth conductor. This rule shall not apply (except in the case of portable appara tus) to any sys tem in which the pressure docs not exceed low pressure direct current or 125 volts alternating current. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 95 Oil Tanks Re gula tions [Subsidiary]

6. (126)(a) Where electricity is distributed at a pressure higher than medium pressure - (i) it shall not be used without transformation to medium or low pressure except in fixed machines in which the: high or e xtrn high pressure parts are stationary; and (ii) motors under 20 h.p. shall be supplied with current through a transformer stepping down or medium or low pressure. (h) Where energy is transformed, suitable provision shall be made to guard against danger by reason of the lower pressure apparatus becoming accidentally charged above its normal pressure by leakage from or contact with the higher pressure apparatus.

7. (127) Switchgear and all terminals, cable ends, cable jomts, and connections of apparatus shall be constructed and installed so that- (i) All parts shall be of mechanical strength sufficient to resist rough usage. (ii) All conductors and contact areas shall be of ampl e: current carrying capacity and all joints in conductors shall be properly soldered or otherwise efficiently made. (iii) The lodgment of any matter likely to diminish the insulation on or close to live parts shall be prevented . (iv) All liv e parts shall be so protected or enclosed as to prevent accidental contact by persons and danger from arcs or short circuits, fire or water. (v) Where there may be risk of igniting gas, or other inflammable material, all parts shall b e so protected as to prevent open sparking. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 96 Chap. 62:01 Petroleum [Sub sidiar y] Oil Tank s Regulations

8. (128)(a) Lightning Arr esters, properly adjusted and maintained shall he provided where necessary to prevent danger. (b) Efficient means suitably placed, shall be provided for cutting off all pressure from every part of a system as may be necessary to prevent danger . (c) Such efficient means shall be provided in respect of each separate circuit for cutting off "11 p ressure automatically from the circuit or part or parts of the circuit affected in the event of a fault as may be necessary to prevent dang er . (d) Every motor shall be controlled by SWitchgea r for starting and stopping, so arranged as to cut off all p ressure from the motor and from all apparatus in connection therewith, and so placed as to be easily worked by the person appointed to work the motor. (e) If a concentric system is used no switch, fuse, or circuit breaker shall be placed in the outer conductor , or in any conductor connected thereto, except that, if required, a reversing switch may be inserted in the outer conductor at the place where the current is being used. Nevertheless, switches, fuses, or circuit breakers may be used to break the connection with the generators or transformers supplyin g the electricity ; provided that the connection 01 the outer conductor with the earthing system shall not thereby be broken.

9. (129) All cables, other than the flexible cables for portable apparatus and signalling wires shall comply with the following req uirernents: (a) They shall be covered with insulatin g material (except that the outer conductor of a concentric sys tem may be bare). The lead sheath of lead sheathed cables and the iron or steel armouring UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 97 Oil Tanks Re gula tions [Subsidiary] of armoured cables shall be of not less thickness respectively than is recommended by the Engineering Standards Committee. (h) They shall be efficiently protected from mechanical damage and supported at sufficiently frequent intervals and in such a manner as adequately to prevent danger and damage to the cables. (c) Concentric cables, or two-core of multi-core cables protected by a metallic covering , or single-core cables protected by a metallic covering which shall contain all the conductors of the circuit, shall be used- (i) where the pressure exceeds low pressure ; and (ii) where there may be risk of igniting gas or other inflammable material. Provided that if the medium pressure direct current system is used- (i) two single-core cables protected by metallic coverings may be used for any circuit if the said metallic coverings are bonded together by earth co nd uc tors 30 placed that the distance between any two consecutive bonds is not greater than 100 feet measured along either cable; and (ii) two single-core cables covered with insulating material efficiently protected otherwise than by a metallic coverin g may be used (except where there may be risk of igniting gas or other inflammable material) for purposes of supplying portable apparatus. (d) Cables unprotected by a metallic covering shall be properly secured by some non conducting and readily breakable material to efficient insulators. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 98 Chap. 62:01 Petroleum [Sub sid ia r y] Oil Tank s R eg ula tio ns (e) The metallic covering of every cable shall be- (i) electrically continuous throug hout; (ii) earthed, if it is required by regulation5(a) to be earthed by a connection to the earthing system of not less conductivity than the same length of the said metallic covering; (iii) efficiently protected against corrosion where necessary; (i v) 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 or other inflammable material. so constructed as to prevent as far as is practicable any fault or leakage of current from the live conductors from causin g open sparking . Provided that where two single-core cables protected by metallic coverings bonded together in accordance wi th paragraph (c) of this Regulation are used for a circuit, the conductivity of each of the said metallic coverings at all parts and at all joints shall be at least equal to 25 per cent of the conductivity of the conductor enclosed thereby. (f) Cables and conductors where joined up to motors, transformers, switch.geur and other apparatus, shall be installed so that- (i) th ey are mec hanically protecte d by securely attachin g the metallic covering (if any) to the apparatus; and (ii) the insulating material at each cable end is efficiently scaled so as to prevent the diminution of its insulating properties. Where necessary to prevent abrasion or to secu re ga s tightne ss there shall be properly constructed bushes. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 99 Oil Tanks Re gula tions [Subsidiary]

10. (130)(a) Flexible cables, for portable apparatus shall be two-core or multi-core and covered witn insulating material which shall be efficiently protected from mechanical damage. If a flexible metallic covering be used either as to the outer conductor of a concentric system or as a means of protection from mechanical damage the same shall not alone be used to form an earth conductor for the portable apparatus. (b) Every flexible cable for portable apparatus shall be connected to the system and to the portable apparatus itself by a properly constructed connector. (c) At every point where flexible cables are joined to main cables a switch capable of entirely cutting off the pressure from the flexible cables shall be provided. (d) No lampholder shall be in metallic connection with the guard or other metal work of a portable lamp.

11. (131)(a) 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. (b) All apparatus shall be kept clear of obstruction and free from dust , dirt, and moisture as may be necessary to prevent danger. Inflammable or explosive material shall not be stored in any rooms, compartment or box containing apparatus or in the vicinity of apparatus. (c) Adequate precautions shall be taken by earthing or other suitable means to discharge electrically any conductor or apparatus, or any adjacent apparatus, if there is danger therefrom, before it is handled, and to prevent any conductor or LoRD. 112009 UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaHairs.gov.tt 100 Chap. 62:01 Petroleum [Sub sid ia r y] Oil Tank s Regulations apparatus from being acc identally or inadvertently electrically charged when persons are working thereon. While lamps are being changed the pressure shall be cut off. Provided that this paragraph shall not apply to the cleaning of commutators and slip rings working at low or medium pressure. (d) Every flexib le cable shall be examined periodically and if found damaged or defective it shall forthwith be replaced by a spare cable in good and substantial repair. Such damaged or defective cable shall not be further used until after it has been properly repaired.

12. (132) In any place where inflammable gas, although not normally present, is likely to occur in quantity sufficient to be indicative of danger the following additional requirements shall be observed: (i) All cables and apparatus signalling wires and signalling instruments shall be constructed, installed, protected, worked and maintained so that in the normal working thereof there shall be no risk of open sparking. (ii) All motors shall be constructed so that when any part is live all rubbing contacts (such as commutators and slip-rings) are so arranged or enclosed as to prevent open sparking. (iii) The press ure shall be switche d off apparatus forth with if open sparking occurs, and during the whole time that examination or adjustment disclosing parts liable to open sparking is being made. The pressure shall not be switched on again until the apparatus has been examined and the defect (if any) has been remedied or the adjustment made. UPDATED TO DECEMBER 31ST 2009 LAWS OF TRINIDAD AND TOBAGO MINISTRY OF LEGAL AFFAIRS www.legalaffairs.gov.tt Petroleum Chap. 62:01 101 Oil Tanks Re gula tions [Subsidiary] (iv) Every electric lamp shall be enclosed in an air-tight fitting, and the lamp glohe itself shall be hermetically sealed.

13. Any of the requirements of these Regulations shall not apply in any case in which exemption is obtained from the Engineer on the ground either of emergency or special circumstances, on such conditions as the Engineer may prescribe. LoRD. 112009 UPDATED TO DECEMBER 31ST 2009