What is the maximum allowed weight for a fireman's helmet under this code?

The mass of the helmet must not exceed 800 g, excluding the visor and neck protector.

Does the helmet protect against electrical hazards?

Yes, it must pass an electrical resistance test at 2000 V AC for 1 minute with a leakage current not exceeding 3 mA.

What materials are acceptable for the helmet shell?

The standard specifies non-metallic materials like fiberglass reinforced plastic (FRP) or high-density engineering plastics (like polycarbonate) that can pass the required thermal and impact tests.

How is the penetration resistance tested?

By dropping a 3 kg pointed striker from a height of 1 meter directly onto the helmet shell mounted on a headform.

IS 2745

: 1983

Specification for Non-Metal Helmets for Firemen and Civil Defense Personnel

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard prescribes the requirements for materials, construction, workmanship, and performance testing of non-metal helmets intended for firemen and civil defense personnel. It strictly outlines physical tests ensuring protection against impact, penetration, electrical shock, and fire exposure.

Specification for Non-Metal Helmets for Firemen and Civil Defense Personnel

Quick Reference Values

maximum mass of helmet800 g (excluding visor and neck protector)

shock absorption max transmitted force14.7 kN (1500 kgf)

penetration test drop height1.0 m

penetration striker mass3.0 kg

electrical resistance test voltage2000 V AC for 1 minute

electrical resistance max leakage3 mA

flammability burner application time10 seconds

Practical Notes

Always check that the internal harness/suspension system is intact; the helmet's shock absorption capability relies entirely on the clearance between the shell and the wearer's head.

Do not paint or apply unapproved solvents to the helmet shell, as this can degrade the fiberglass or polycarbonate material and fail flammability or impact tests.

Neck protectors and visors must be compatible and meet their own respective thermal and optical requirements if attached.