This standard outlines the operational criteria and construction guidelines essential for hose laying tenders utilized by fire departments to enable swift deployment of extended hose lines during firefighting operations. It details design, material, equipment, and performance requisites to guarantee the vehicle's dependability, safety, and efficiency. Key stakeholders involved in production, acquisition, and upkeep of firefighting vehicles will find this code indispensable.
Overview
This standard outlines the operational criteria and construction guidelines essential for hose laying tenders utilized by fire departments to enable swift deployment of extended hose lines during firefighting operations. It details design, material, equipment, and performance requisites to guarantee the vehicle's dependability, safety, and efficiency. Key stakeholders involved in production, acquisition, and upkeep of firefighting vehicles will find this code indispensable.
Audience
Contents
Structure
This section defines the functional prerequisites for hose laying tenders employed by fire services for rapid hose deployment. It includes detailed specifications for equipment such as hoses, clamps, bandages, ramps, torches, and canvas water tanks, along with accessory requirements like lighting, signaling devices, and maintenance tools. SI units and fundamental definitions related to force, pressure, energy, power, and frequency are also established to ensure standardization.
This chapter lists the essential referenced documents and provides detailed equipment schedules, including quantities and specifications for hoses, clamps, bandages, and accessories. It also reiterates the importance of compliance with SI units and notes on voltage drop limits for electrical components.
Requirements for materials in contact with water emphasize the use of corrosion-resistant metals such as aluminum or treated mild steel. Protective coatings like galvanization or painting are prescribed to enhance durability. Specifications for hoses and fittings ensure resistance to degradation during operational use.
This section covers the structural design criteria, including the strength of the roof capable of supporting a person’s weight, corrosion resistance treatments, and detailed provisions for equipment installations. It incorporates SI unit conventions and presents a schematic representation of design necessities.
All components must reflect superior workmanship to guarantee longevity and operational reliability. Stability requirements mandate that the tender withstands tilting up to 25 degrees without tipping. Corrosion resistance and adherence to specified equipment schedules are integral to maintaining quality.
The standard specifies essential accessories such as fire bells, headlamps, fog lamps, reversing lights, blinkers, trafficators, defrosting devices, wipers, maintenance tools, lighting systems, and electric fans. Requirements on electrical connections and voltage drop limitations are detailed to ensure functional safety.
This part outlines the performance tests and criteria for hoses and associated equipment, emphasizing compliance with referenced IS standards. It provides formulas for flow calculations and stresses the importance of precision in measurement and rounding-off procedures.
The instruction manual must comprehensively cover operational guidelines and routine maintenance procedures, including illustrated spare parts listings. Paint specifications and accessory details are also described to ensure proper upkeep and appearance.
This appendix enumerates all required equipment with quantities and relevant IS references, including hoses, clamps, bandages, ramps, torches, and canvas water tanks. Additional electrical equipment and their specifications are also itemized.
Frequently Asked
IS 2930 (1980) does not explicitly define minimum engine power values for hose laying tenders. However, standard engineering practices for such fire brigade vehicles recommend an engine power range between 70 to 100 horsepower, sufficient to ensure the vehicle can carry its full load, including hoses, equipment, and water tanks, while maintaining adequate speed and acceleration on varied terrains. Considerations include vehicle weight, operating conditions, and auxiliary equipment power demands. For precise requirements, consulting manufacturer data or related vehicle design standards is advisable.
The standard mandates that hose laying tenders are equipped with dependable braking systems capable of safely stopping the vehicle under both loaded and unloaded states. It requires testing to confirm effective stopping distances on dry and wet surfaces, inclusion of service brakes, and an emergency or parking brake that can hold the vehicle stationary on slopes. Brake components must be durable and consistent in performance to maintain safety during firefighting operations. Specific performance parameters are to be aligned with general automotive brake standards referenced by IS 2930.
Safety provisions for the driver and crew compartments include maximizing driver visibility, provision of adjustable and ergonomically designed seating, and dual side doors with outward opening and secure locking mechanisms. Windows must be made from toughened glass with mechanical winding. Lighting requirements include at least one light in the driver’s cabin and multiple lights in the rear cabin, with switches that operate automatically with door movement. A full partition constructed from mild steel and aluminum separates the driving area from the hose-carrying body, featuring a sliding glass window for communication. The compartments are designed to accommodate the driver and a crew of two safely and comfortably.
The standard prescribes the use of corrosion-resistant materials such as aluminum, which naturally forms a protective oxide layer, or mild steel treated with protective coatings like galvanizing or painting for parts in contact with water. Proper drainage features are also required to avoid water accumulation. Compliance with these material specifications ensures longevity and durability of the tender’s water-contact components.
Mandatory accessories include a 250 mm diameter fire bell operable from the driver’s cab, two headlamps with a minimum diameter of 20 cm, fog lamps, reversing lights, twin amber blinkers, illuminated trafficators, defrosting devices, windscreen wipers, and tools for routine maintenance. Electrical equipment also includes searchlights mounted on tripods with cables limited to a 2% voltage drop, adjustable spotlights, inspection lamps, and three swiveling electric fans powered by the vehicle battery. Additionally, an internal communication system is required, consisting of an electric bell push at the rear gangway linked to a bell in the driver’s compartment to facilitate coordination between the hose supervisor and driver during operations.
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