GAIL (India) Limited
GAIL (India) Limited GAIL (India) Limited
77. TESTING OF WIRING:The following tests shall be carried out on all types of wiring on completion of the work and beforeenergizing the installation:i. Insulation resistance test.ii. Electrical continuity test,iii. Earth continuity test.iv. Earth electrode resistance test.v. Switch polarity testThe insulation resistance shall be measured by using 500v megger between the following points.Phase and neutral conductor with all fuses in position and all switches in closed condition and mainswitch in OFF position with lamps and other devices removed.Between earth and whole system of conductors with all fuses in place, all switches closed and all lamps inposition.The insulation resistance in megaohm as obtained by each of the above tests shall not he less than 50divided by the number of points on the circuit. Where a whole installation is being tested, a lower valuethan that given by the above formula is acceptable subject to a minimum of one megaohm.(ii)(iii)Electrical continuity test:Each and every circuit shall be tested for electrical continuity by using a multi meter.Earth continuity test:The earth continuity conductor including metal conduit shall be tested for electrical continuity and theresistance of the same along with the earthing lead measured from the connection with the earth electrodeto any point in the earth continuity conductor in the complete installation shall not exceed one ohm.(iv)(v)Earth electrode resistance test:The earth electrode resistance shall be tested as specified in sectionSwitch polarity test:Test shall be made to verify that all switches in every circuit have been fitted in the same conductorthroughout and such conductor shall be marked for connection to the phase conductor.8 Distribution Boards:All the distribution boards shall be with MCBs as described in the respective schedule.A switch fuse, miniature circuit breaker or an isolator as described in the respective schedule shall controlthe distribution boards. Each outgoing circuit shall be provided either with MCB or a fuse on the phase.The neutral shall be connected to a common link and be capable of being disconnected individually fortesting purposes.The distribution boards shall be located as indicated in the respective electrical working drawings and asdirected by Engineer - in - charge. The distribution boards shall be fixed on wall in the niche provided andmarked with the details of circuits, source of supply, size of incoming wires Etc.All marking shall be clear and legibleThe total load of the consuming devices shall be evenly distributed between the numbers of ways ofdistribution board.
8The consuming device circuit shall be connected to distribution board in proper sequence. So as to avoidunnecessary crossing of wires.Cables shall be connected to a terminal only by crimped lugs.Cables shall be rigidly fixed in such a manner that a clearance of at least 2.5cm is maintained betweenconductors of opposite polarity or phase and between the conductors and any material other thaninsulating material.The incoming and outgoing cables shall be neatly bunched.9. MOUNTING HEIGHTS:The Mounting heights of various fixtures shall be as specified in the Drawings
- Page 47 and 48: 467.1.1.2 Hard Wood:Hard wood shall
- Page 49 and 50: 48The glass sheets for glazing shal
- Page 51 and 52: 50finish with minimum anodic film t
- Page 53 and 54: 52The tiles shall generally conform
- Page 55 and 56: 54Plaster as herein specified shall
- Page 57 and 58: 5612.9.5 FLOATING COAT OF NEAT CEME
- Page 59 and 60: 5813.1.a3 Preparation of Surface:Th
- Page 61 and 62: 6014.1.2 Preparation of surface:Pre
- Page 63 and 64: 62solution generously with brush. A
- Page 65 and 66: 64The Gypsum boards used for false
- Page 67 and 68: 661.4.1 Straining posts shall be pr
- Page 69 and 70: 687 Aluminum glazing section Hindal
- Page 71 and 72: 70SPECIFICATIONSPLUMBING AND SANITA
- Page 73 and 74: 722.6 For all pipes, work shall be
- Page 75 and 76: 743.6 As far as possible no GI pipe
- Page 77 and 78: 76Following measures shall be adopt
- Page 79 and 80: 781.15 ANGLE VALVEAngle valve shall
- Page 81 and 82: 803.16 Cast iron gratings shall be
- Page 83 and 84: 82a) The contractor shall at all ti
- Page 85 and 86: 844.5.1 LEADING IN C.I. PIPESThe le
- Page 87 and 88: 865.2.4 TRENCH FILLING OF G.I. PIPE
- Page 89 and 90: 88e) Location of all manholes, catc
- Page 91 and 92: 90Sr.No. MATERIALS APPROVED MAKE/AG
- Page 93 and 94: 2TECHNICAL CONDITIONS1.1 These spec
- Page 95 and 96: 411. Qualified Competent Supervisio
- Page 97: 6Ceiling rose: a) A ceiling rose or
- Page 101 and 102: 10A cover plate at the top of the v
- Page 103 and 104: 12Mechanical operation indicators s
- Page 105 and 106: 1411. Indicating lamps and push but
- Page 107 and 108: 16CHAPTER 31. Scope:LAYING OF CABLE
- Page 109 and 110: 183.5.4 Provision shall be made to
- Page 111 and 112: 20such that it shall be able to rea
- Page 113 and 114: 22ii) Tappings : OFF load tap chang
- Page 115 and 116: 245.3.2 Installation: The transform
- Page 117 and 118: 26A vertical air termination shall
- Page 119 and 120: 286. Testing:On the completion of t
- Page 121 and 122: 30l. Light Switches/Sockets/Fan Reg
- Page 123 and 124: 2TECHNICAL SPECIFICATIONSA) AIR COO
- Page 125 and 126: 47.0 CONEENSATE & DRAIN PIPING:7.1
- Page 127 and 128: 6B) AIR DISTRIBUTION SYSTEM:1.0 GEN
- Page 129 and 130: 8ii.iii.iv.All necessary allowances
- Page 131 and 132: 10ACTUATOR:In case of motorised smo
- Page 133 and 134: 12D) THERMAL/ACOUSTIC INSULATION. G
- Page 135 and 136: 14BASIS OF DESIGNAC REQUIRED FOROFF
- Page 137 and 138: 162.0 INSULATIONManufacturer Materi
- Page 139 and 140: 0G) LIST OF APPROVED MAKES:The foll
- Page 141 and 142: 1IV. TECHNICAL SPECIFICATIONSFORINT
- Page 143 and 144: 316. Unless otherwise provided spec
- Page 145 and 146: 52.9 ROUGH CARPENTRYMaterialAll fra
- Page 147 and 148: 7All joinery to be varnished/spirit
8The consuming device circuit shall be connected to distribution board in proper sequence. So as to avoidunnecessary crossing of wires.Cables shall be connected to a terminal only by crimped lugs.Cables shall be rigidly fixed in such a manner that a clearance of at least 2.5cm is maintained betweenconductors of opposite polarity or phase and between the conductors and any material other thaninsulating material.The incoming and outgoing cables shall be neatly bunched.9. MOUNTING HEIGHTS:The Mounting heights of various fixtures shall be as specified in the Drawings