1. Basic performance of safety helmet testing equipment 1. The impact absorption performance of the helmet testing instrument: According to the prescribed method, after the high temperature, low temperature, water immersion and radiation pretreatment, the impact test is carried out, and the force transmitted to the head mold does not exceed 4900N; no debris should fall off the cap shell. 2. The puncture resistance of the safety helmet testing equipment: perform puncture test after pretreatment of high temperature, low temperature, water immersion and irradiation according to the prescribed method. The steel cone does not contact the surface of the head mold; no debris should fall off the cap shell. 3. The strength of the chin strap of the safety helmet testing instrument: tested according to the prescribed method, the force value when the chin strap is broken should be 150 ~ 250N. Second, the special performance of hard hat testing instruments 1. Electrical insulation performance: tested according to the prescribed method, the leakage current does not exceed 1.2Ma. 2. Flame retardant performance: tested according to the prescribed method, the continuous burning time does not exceed 5S, and the cap and casing shall not burn through. 3. Lateral rigidity: tested according to the prescribed method, the maximum deformation does not exceed 40mm, the residual deformation does not exceed 15mm, and no debris should fall off the cap. 4. Antistatic performance: tested according to the prescribed method, the surface resistance is not greater than 1 Euro * 109 5. Low temperature resistance: Impact test after pretreatment according to low temperature (-20 ℃), the force transmitted to the head mold does not exceed 4900N; there must be no debris from the cap shell; then another sample is pretreated (-20 ℃) After the puncture test, the steel cone must not touch the surface of the head mold, and no debris should fall off the cap.
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