DGUV Information 209-027 - Machine Tool Fire and Explosion Prevention and Protection

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Abschnitt 4 - 4 Use of machinery - Requirements of companies

The measures necessary for a new machine are not always necessary for machines which have been in operation for a longer period of time. However, also "established" machines need to be evaluated to determine whether supplementary measures are necessary according to Annex 1 of the BetrSichV (German Industrial Safety Regulations).

These may, for example, include:

  • Use of low-emission metalworking fluids,

  • Connection to an extraction system,

  • Technical isolation of machine tool and extraction system with regard to fire protection,

  • Training of workers.

The employer should take measures to ensure that the machine is tested for defects prior to use and that it operates as flawlessly as possible during use. Machine tools must only be operated by qualified, trained or appointed workers or under their supervision.

The protective measures specified by the manufacturer must be observed by the workers during use of the equipment; it is especially important to use the protective devices, and not to disable make. When defects are identified which could effect the safety workers, the machine tool should not be used. If such defects are found during operation, the machine must be shut-down.

The requirements for operation, marking, training of workers and regular testing and inspection also apply to automatic extinguishing systems fitted to machine tools. For extinguishing systems with gaseous extinguishing agents, e. g. CO2, the relevant regulations, in particular, of the Berufsgenossenschaften must be observed (see also BGR 134, BGI 888). Information on maintaining the operational reliability of fire extinguishing systems is also contained in the relevant VdS Directives for planning and installation or in the VdS leaflets.