Method of Statement for Fire Fighting Works (Part-1)

METHOD OF STATEMENT FOR FIRE FIGHTING WORKS (PART-1)

PURPOSE:

This method describes the detailed procedure for installation and Testing of Wet Raiser Fire Protection System, Pipes, Sprinkler, Fire Pumps, Valves and Fire Fighting Accessories as per the standard Practice and Codes.

GENERAL EQUIPMENT & TOOLS:

The equipment that will be engaged for Installation of Fire Fighting works will be

Tool Box * Welding Machine * Drilling Machine with various Bits * Grinding Machine * Cutting Machine * Threading Machine * Chain Block * Pipe Wrench * Hand Tools-gloves. * Hammer * Portable Lights * Manual Excavation Tools * Removable Barricades * Scaffolding / Mobile scaffold * Ladder * Spirit Level * Screwdriver, Pliers, Spanner. * Marker * Pressure gauge * Level gauge / Spirit level. * Measuring tape * Pressure test pump.

STORAGE & MATERIAL HANDLING:

The storage area must be free from dust and the materials should be stacked in proper manner to avoid any damages. * The Material shall be stored in designated area of the Store to protect the M.S Pipe and Other Fire Fighting Accessories against effects of weather and environment. * The material shall be transported in their original packing to Site location. * The pipes will be stacked in the site store on a proper stand on wooden loft on a flat surface at a height not exceeding 1.7m. From the bottom layer. * All open ends of pipes will be covered to protect from foreign matter, dirt/debris * Fittings will be separately packed and stored as per the sizes required for the project. * Chemicals must be stored in well ventilated location and away from direct sunlight.

INSPECTION OF MATERIALS:

Inspection of Pipe / Valve / Flanges: * Check Type of Material ,Size of Material , Make of Material. * Chemicals such as paints, primer and thinner, check their expiration date before receiving. * Physical Damages Inspection: * In case of any damages observed during inspection, the concern report will be issued and Material shall be returned to the supplier for replacement.

INSTALLATION PROCEDURE:

(1) PIPE HANGER / SUPPORT INSTALLATIONS

Piping Route will be the as per most advantageous manner possible with respect to headroom, valve access, opening and equipment clearance, and clearance for other work. * The Line layout should be verified from Site in charge. * After marking the pipe routes, the anchoring points will be drilled according to the required support spacing as shown on the approved shop drawings.

Pipe Diameter (mm) Maximum Hanger Spacing (mm) Rod Size (mm) 25 2000 8 32 2500 8 40 2500 8 50 2500 8 65 2500 10 80 2500 10 100 * 2500 * 12 * 150 * 3000 * 16 * 200 * 3000 * 16 * * As per Site Requirement Fabrication Support may be used.

Mark out the location of hanger thread rods for pipe installation as per the approved construction drawing. * Fasteners and fully threaded rods shall be used for installing the pipe supports. The sizes of pipe supports and installation shall be in accordance with manufacturer’s recommendations. * For Single pipes of size 100 mm and above, with the prior approval 50xx50xx6 mm MS Angle iron and for Double Pipe 75x75x6mm with U Clamp with Fastener may be used for Supporting horizontal Pipe from ceiling. * Drill the marked position for hangers and supports by using the drill bit of appropriate size. * Fix the unfix anchor at drilled position by gentle and uniformly hammering. * Fix the threaded rod of appropriate diameter and size & length in the anchor by twisting by turning. * After fixing the threaded rod, insert a washer of appropriate size in to the rod. * Finally fix the washer near to the slab by tightening a nut over it, this will improve the strength and load bearing capacity of threaded rod. * For installing pipes vertically or horizontally inside the building standard pipe supports of reputed make shall be used. Following supports shall be used. * Clevis Hangers or MS Chanel for horizontal supports to adjust varying heights. * The Pipe route should be min 500mm away from wall. * Supports will be arranged as near as possible to pipe joints and any change in direction. * Vertical Riser Support: * Risers shall be supported by pipe clamps or by hangers located on the horizontal connections within 24 inches (0.6 Meter) of the centerline of the riser.

(2) PIPE WELDING / FABRICATION:

Welding Machine: * Welding machines shall be in good working condition and shall have proper control for regulating current. * Location of welding machines and the distribution boards to be connected with them shall be verified by site electrical Team to avoid overloading of the distribution boards, cables and electrical power sources. * All welding Machine ,other Electrical Tools, the electric cables, distribution boards and connections for machines shall be carefully checked once a Month to maintained it in a good working condition. * Weld…