Functional Requirements for Towing Tender for Trailer Fire Pump for Fire Brigade Use

IS 947 Scope & Key Specifications Summary

IS 947 specifies the equipment and accessories for fire brigade appliances, including dimensions, quantities, and referencing related IS codes for components.

Key Scope Points:

• Covers fire fighting hoses, suction hoses, ladders, nozzles, couplings, and tools.
• Specifies quantities and standards for each item supplied with fire appliances.
• Refers to related IS codes for detailed specifications, e.g.:
  • Suction hose: IS 2410-1963, IS 902-1974
  • Wooden extension ladder: IS 1084-1983
  • Suction strainers: IS 907-1984
  • Hose clamps & bandages: IS 5612 (Part 1 & 2)
  • Fire extinguishers: IS 940-1976 (water), IS 933-1976 (foam), IS 2878-1976 (CO2)
  • Breathing apparatus: IS 10245 (Part 2)-1982

Typical Equipment List (Quantities per appliance):

Important Dimension:

• Overall appliance height: Not more than 3.35 m from ground level (Clause 3.35).

Summary Diagram of Equipment Categories:

graph TD
  A[Fire Appliance Equipment] --> B[Hoses & Couplings]
  A --> C[Ladders]
  A --> D[Nozzles & Branch

IS 947: General Requirements - Key Specifications & Items Summary

Scope:
Material, design, construction, workmanship, finish, accessories, and equipment for towing tenders for large trailer pumps in fire brigade use.

Key Equipment & Quantities (Selected from Clause 2.5 & 7.5)

Additional Notes:

• Driver's cab instrumentation: Cooling water gauge and glow lamp for lubricating system with operating temperature marking (Clause 4.1.4).
• All accessories conform to respective IS specifications ensuring interoperability and safety.
• Quantity and specifications ensure operational readiness for fire brigade towing tenders.

Summary Diagram: Fire Tender Equipment Categories

graph TD
    A[Fire Tender Equipment] --> B[Water Supply & Hose]
    A

IS 947: Material, Selection and Treatment - Key Points

Clause 3: Material, Selection and Treatment

• Equipment must comply with relevant IS standards for materials and treatment.
• Design to ensure compactness with accessibility (Clause 2.5).

Important Equipment & Relevant IS Codes (Clause 7.5 & Appendix A)

Hose & Coupling Standards

• Suction hose: IS 2410-1963, IS 902-1974
• Suction strainers: IS 907-1984
• Basket strainers: IS 3582-1984
• Hose bandages & clamps: IS 5612 (Parts 1 & 2)
• Nozzles & branch pipes: IS 903-1984, IS 2871-1983

Summary of Material Selection & Treatment

• Use materials per specified IS standards for durability and fire resistance.
• Treatment includes corrosion protection, mechanical strength, and compatibility with firefighting chemicals.
• Ensure all components meet IS specifications for safety and reliability.

flowchart LR
    A[Material Selection] --> B[IS Standards

IS 947 - Design and Construction: Key Specifications & Tables

1. Equipment Specifications (Clause 7.5 & 2.5)

2. Design & Construction Notes (Clause 3.4)

• Lubricating nipples must be provided wherever necessary to ensure smooth operation.

3. Important Accessories & Tools

• Suction strainers, basket strainers, dividing and collecting breechings, suction wrenches.
• Hose bandages and clamps.
• Hydrant valve key, fog nozzles, hand-controlled branches.
• Safety gear: rubber gloves, asbestos gauntlets, self-contained breathing apparatus.
• Tools: sledge hammer (6.5 kg), carpenter's saw (60 cm), axe, spade, pick axe, crow bar.

Summary Table of Fire Fighting Equipment Quantities (Excerpt)

Notes:

• Refer to respective IS codes for detailed design, material, and construction requirements.
• Equipment must comply with IS standards for safety and performance.
• Ensure regular

IS 947: Workmanship and Finish of Appliance (Clause 5)

• Workmanship (5.1):
  All parts must exhibit good workmanship with a streamlined finish ensuring no rough edges or defects that could impair function or safety.

• Finish and Painting (5.2):

  • The appliance shall be painted fire red, matching Shade No. 536 of IS:5-1978 (Colours for ready mixed paints and enamels).
  • Paint must comply with IS:2932-1974 standards for durability and finish quality.

Stability Requirement (Clause 4.4)

• Appliance must remain stable up to a tilt angle of 30° on either side under full load (excluding crew).
• This ensures safety against overturning on inclined surfaces.

Summary Table for Finish and Stability

flowchart LR
    A[Appliance Parts] --> B[Good Workmanship]
    B --> C[Streamlined Finish]
    C --> D[Paint: Fire Red (IS 5 Shade 536)]
    D --> E[Paint Standard IS 2932-1974]
    E --> F[Stability Check]
    F --> G{Tilt Angle ≥ 30°?}
    G -->|Yes| H[Safe]
    G -->|No| I[Unsafe - Redesign Required]

This ensures the appliance is both visually compliant and safe in operation.

IS 947 - Accessories and Equipment for Fire Appliances

Key Accessories (Clause 6.2.1)

• Fire bell: 250 mm diameter, hand-operated, externally mounted, operable from driving compartment.
• Lighting: 2 head lamps, 2 fog lamps, reversing light, amber blinkers on cab top, tail lamps (combined stop/tail).
• Indicators: Trafficators with illuminated signals on instrument panel.
• Other: Windscreen wipers & washer, siren (battery operated), search light (adjustable, with tripod & 30 m TRS cable), spot light, inspection lamp, instrument panel light, public address system (optional).
• Tools: Routine maintenance tools not included in chassis kit.

Equipment Schedule (Appendix A, Clause 2.5)

IS 947 - Marking and Identification: Key Points & References

Clause 7.5 in IS 947 primarily lists fire-fighting equipment specifications and references related IS codes for marking and identification, rather than direct formulas.

Key Specifications & Related IS Codes for Identification:

Identification & Marking Notes:

• Each equipment must be marked clearly with:
  • Manufacturer's name or trademark
  • IS code number
  • Capacity/size (e.g., extinguisher volume or jack tonnage)
  • Date of manufacture
• Marking should be durable and legible even after exposure to fire or water.
• Refer to the specific IS codes for detailed marking and labeling requirements.

Summary:

IS 947 references multiple IS codes for detailed specifications and marking of fire-fighting equipment. Marking ensures traceability, compliance, and safety verification.

flowchart TD
    A[Fire Fighting Equipment] --> B[Marking & Identification]
    B --> C[Manufacturer's Name]
    B --> D[IS Code Number]
    B --> E[Capacity/Size]
    B --> F[

IS 947: Recommended Tools & Fire Fighting Equipment Summary