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Head Protection

(19 Article)

Effective head protection is not only essential but also compulsory on construction sites. DENIOS building protection helmets comply with DIN EN 397. The helmet shell is made of thermoplastic special plastic (PE) with a pointed rain gutter.

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Why must head protection be worn?

As part of the risk assessment, the employer must determine for each workplace which hazards for employees cannot be reduced by technical or organisational measures. Countermeasures must be taken for these hazards. This includes the provision of personal protective equipment (PPE). Head protection is always obligatory when hazards arise from

  • Bumping into objects
  • Swinging objects
  • Falling objects
  • Flying objects

are present.

Which head protection is the right one?

Industrial head protection is usually provided by hard hats and bump caps. It is important to know that bump caps cannot replace a full protective helmet. They do not protect against falling or thrown objects or moving, suspended loads. The safety helmet must be fitted exactly to the head size of its wearer in order to provide full protection. Ensure that the straps rest directly on the head and that the headband fits snugly but does not pinch. Velcro and twist fasteners allow a particularly comfortable adjustment of the head protection (DGUV 112-193).

Are there different types of industrial safety helmets?

Two standards determine which functions protective helmets must fulfil: EN 397 and EN 50365. Head protection according to EN 397 primarily protects against falling objects and their consequences, such as head injuries or fractures. Optionally, some models meet the "electrical properties" requirement. In this case, they also provide protection in the event of short-term, accidental contact with live parts. If a safety helmet complies with EN 50365, it has electrical insulating properties (AC voltage up to 1,000 V or DC voltage up to 1,500 V). Together with other PPE, they prevent a dangerous body flow through the head. In the DENIOS range you will find helmets that comply with EN 397 and EN 12492 ("mountaineering helmets").

How old can protective helmets be?

Safety helmets do not have a prescribed, legal service life. Nevertheless, there are guideline values that should be taken into account in order to protect oneself and one's employees in the best possible way. For helmets made of thermoplastic materials (e.g. PE, PP, PC, ABS, PP-GF, PC-GF), it is recommended not to exceed a maximum service life of four years. Helmets made of thermosetting plastics (e.g. PF-SF, UP-GF) should be replaced after eight years. Regardless of the materials, the weather conditions and sun exposure must be taken into account. If a safety helmet is visibly brittle due to high solar radiation, it should be replaced as soon as possible. The safety of the helmet wearer comes first!

Also: Do not drop your helmet on the ground! Because if a safety helmet is subjected to a strong, unintended load, invisible hairline cracks in the helmet can occur, which limit the stability of the helmet!

Did you know that...

... the colour of the helmet can tell you exactly who is wearing the head protection, especially on construction sites?

  • White: Visitors, architects, site managers and foremen, laboratory personnel. In mining: miners
  • Yellow: labourers, bricklayers, storekeepers. In mining: hewers
  • Blue: Sanitary workers, locksmiths (also in mining)
  • Red: Foremen, electricians, forestry workers. In mining: Mine guards
  • Green: Carpenters. In mining: electricians
  • Orange: Ironworkers/ reinforced concrete workers, forestry workers, safety officers (also in mining).

However, these are only unwritten rules. The use of helmet colours is not standardised.

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