Electrical work in connection with provision of video surveillance system at stations over DLI Division.

A-Electrical work in connection with provision of video surveillance

Supply and recessing/fixing of PVC conduit pipe of 25mm size conforming to IS:9537 1 Part-III:1987 (or Latest version) with accessories junction box, bends etc. including making chase, plastering/clamping etc. as per site requirement conforming to IS 9537 (Part 3): 1983 or latest & as per Explanatory Note.

Supply, Fixing, testing & commissioning of following sizes FRLS PVC insulated multi 2 stranded copper (annealed) conductor single core cable conforming to IS 694 (or Latest Version) , and drawing in Laid (recessed /surface) PVC conduit pipe for wiring of point wiring / circuit wiring / sub main / main as required including connections, testing and commissioning & as per Explanatory Note. Size = 1x1.5 sq.mm.

Supply, Fixing, testing & commissioning of following sizes FRLS PVC insulated multi 3 stranded copper (annealed) conductor single core cable conforming to IS 694 (or Latest Version) , and drawing in Laid (recessed /surface) PVC conduit pipe for wiring of point wiring / circuit wiring / sub main / main as required including connections, testing and commissioning & as per Explanatory Note. Size 1x4.0 sq.mm.

Supply, Fixing, testing & commissioning of following sizes FRLS PVC insulated multi 4 stranded copper (annealed) conductor single core cable conforming to IS 694 (or Latest Version) , and drawing in Laid (recessed /surface) PVC conduit pipe for wiring of point wiring / circuit wiring / sub main / main including connections, testing and commissioning & as per Explanatory Note. Size = 1x10.0 sq.mm.

Supply, fixing , testing & commissioning of UPVc drain pipe size 25mm dia. complete with all accessories. Preferred make: AKG, Rajgold, Supreme, Finolex or equivalent of reputed brand and of latest relevant IS & as per Explanatory Note.

Supply, fixing, testing & commissioning of 25A, 2P 30mA RCBO AC type confirming to IS 12640-2 & IEC 61009-1: latest complete & as per Explanatory Note.

Supply, fixing, testing & commissioning of 63A, 4P 30mA RCBO AC type confirming to IS 12640-2 & IEC 61009-1: latest complete & as per Explanatory Note.

Supply, Fixing, testing & commissioning of LT distribution board double door type made up of CRCA sheet sheet with anti corrosion treatment and suitable, IP 43 phosphatised powder painted complete with neutral link, earth point, Din rail and prewired confirming to IS:13032, IEC 60947 & IS/IEC:61439 or latest of make ABB, Siemens, L&T, Schneider, Legrand or equivalent with following items of matching make to be fixed in distribution board, confirming to IS/IEC:60898-1 8 :2002 or latest, IE rules and site requirement. It should be rodent entry proof. It should also include well dressing and coding of circuit & as per Explanatory Note. 40A DP RCBO 30 mA= 01 No. (Incoming) 6-32A MCB SP "C" Series = 09 Nos. (Outgoing) It should be rodent entry proof. It should also include well dressing and coding of circuit IP2X terminal , reversible door with 180 degree opening, cement spill protection, detachable gland at top and bottom and short link for MCBs. It should also include proper tagging on electrical wires/cables which clearly indicate the incoming point or source and outgoing point of wires/cables.

Supply, Fixing, testing & commissioning of LT distribution board double door type made up of CRCA sheet sheet with anti corrosion treatment and suitable, IP 43 phosphatised powder painted complete with neutral link, earth point, Din rail and prewired confirming to IS:13032, IEC 60947 & IS/IEC:61439 or latest of make ABB, Siemens, L&T, Schneider, Legrand or equivalent with following items of matching make to be fixed in distribution board, confirming to IS/IEC:60898-1 9 :2002 or latest, IE rules and site requirement. It should be rodent entry proof. It should also include well dressing and coding of circuit & as per Explanatory Note 63A 4P RCBO 30 mA= 01 No. (Incoming) 6-32A MCB SP "C" Series = 09 Nos. (Outgoing) It should be rodent entry proof. It should also include well dressing and coding of circuit IP2X terminal , reversible door with 180 degree opening, cement spill protection, detachable gland at top and bottom and short link for MCBs. It should also include proper tagging on electrical wires/cables which clearly indicate the incoming point or source and outgoing point of wires/cables.

"Refrigerant Piping" Supply & Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 10 19mm thick (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft & as per Explanatory Note. 15.9mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping" Supply &Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 11 19mm thick (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft & as per Explanatory Note. 9.5mm dia with 13mm thick nitrile rubber insulation: 18G

"Refrigerant Piping" Supply &Installation of interconnecting suitable sizes of one end expanded refrigerant copper pipe work, insulated with 13mm thick (pipe size upto 19.1mm dia) & 12 19mm thick (pipe size above 19.1mm dia) closed cell electrometric nitrile rubber tubular insulation with alluminium foil between each set of indoor & outdoor units with outer mechanical protection for all exposed pipes as per specification. All piping inside the room shall properly run in MS/GI supports and hangers etc. as reqd. and perforated cable tray as mentioned below for exposed pipes and in the shaft & as per Explanatory Note. 6.4mm dia with 13mm thick nitrile rubber insulation: 18G

Supply, laying, testing and commissioning of communication cable (1.5 sq. mm x 2 core) complete & as per Explanatory Note.

Supply, fixing, testing and commissioning of suitable size interconnecting control 14 cable size (5Cx6.0 sq. mm.) from indoor to outdoor unit complete with suitable size copper earthing as per latest relevant IS & IE rules and site requirement & as per explanatory note.

Supply, installation, testing and commissioning of Air Curtain of size 1200x230x212 mm complete as per site requirement and latest relevant IS and IE & as per Explanatory Note.

Supply, fixing, testing and commissioning of Complete Panel Solution for remote monitoring and controlling of 02 Nos. air conditioning units (window/split) including individual relay/contactor of 40A rating each. 02 PT100 CLASS-B temperature sensors. Compact energy meter with display, covering direct current, voltage and energy parameters in compliance to IEC 61000-4-2 16 & IEC 61000-4-5. Suitable Modular PLC with inbuilt HMI having 5DI, 8DO, 2A (impedance input of 750 ohm) with software (IEC 61131-3). Din Rail SMPS-i/p 100-270V Ac o/p 24V DC, current rating -2.5 A with up to 140% of rated output current; Hiccup type auto recovery and O/C, O/V, S/C protection, Size 43x110x103mm (WxHxD), Serial (Modbus) to cloud connector device with MQTT and GSM (m2m sim card support). ABS/MS/Polycarbonate panel box IP 67, IK10, Outdoor type and as per site requirement & as per Explanatory Note.

Supply, fixing, testing and commissioning of Complete Panel Solution for remote monitoring and controlling of 04 Nos. air conditioning units (window/split) including individual relay/contactor of 40A rating each. 02 PT100 CLASS-B temperature sensors. Compact energy meter with display, covering direct current, voltage and energy parameters in compliance to IEC 61000-4-2 17 & IEC 61000-4-5. Suitable Modular PLC with inbuilt HMI having 5DI, 8DO, 2A (impedance input of 750 ohm) with software (IEC 61131-3). Din Rail SMPS-i/p 100-270V Ac o/p 24V DC, current rating -2.5 A with up to 140% of rated output current; Hiccup type auto recovery and O/C, O/V, S/C protection, Size 43x110x103mm (WxHxD), Serial (Modbus) to cloud connector device with MQTT and GSM (m2m sim card support). ABS/MS/Polycarbonate panel box IP 67, IK10, Outdoor type and as per site requirement & as per Explanatory Note.

Supplying & fixing suitable size GI box with modular plate and cover in front on 18 surface or in recess including providing and fixing 25A modular socket outlet and 25A modular SP MCB "C" curve including connections, painting etc. as required (For AC's). CPWD General Specifications for Electrical Works Part-I Internal - 2023, CPWD DSR (E&M) 2022 & as per Explanatory Note

Earthing with 40 mm dia GI pipe class 'B' 4.5 meter long earth electrode as per 19 IS:3043 (latest version) to achieve earth resistance less than 5 ohms including construction of masonry enclosures with hinged cover plate of cast iron with locking arrangement (approx. size 400 mmx 400 mm) on top, provision of earth plate, connections from earth electrode to switch gear/pole as per drawing & as per Explanatory Note.

Supplying and laying 25 mm X 5 mm G.I strip confirming to relevant IS as per IS:3043 20 (Latest version), fixing on surface or as per site condition, clamping or fixing with suitable arrangement as per site requirement, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50 mm) & as per Explanatory Note.