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  • Why do you need a safety cutting system?

    The basis for the operation of electrical systems is DIN EN 50110-1 (VDE 0105 Part 1). It describes and defines general principles, operating procedures, working methods and maintenance. This regulation has the force of law and is binding for the entire EU area.
    Section 6.2.3 deals with the topic of "Determining the absence of voltage". Paragraph 2 states:
    "If de-energised cables cannot be clearly identified at the work site, ... other proven safety measures must be taken, e.g. the use of suitable cable cutting or cable bombardment devices."
    Another regulation, DIN EN 50340 (VDE 0682 Part 661), describes hydraulic cable cutting devices for use in / on electrical installations with a rated voltage of up to 30 kV (30,000 V), which are designated as suitable cable cutting devices in accordance with DIN EN 50110-1 § 6.2.3. This regulation is an EN standard and is also valid throughout the EU.
    This standard specifies the necessary properties and test requirements for cable cutters for use in / on electrical installations with a rated voltage of up to 30 kV (30,000 V).
    The BG writes in the BG rules for safety and health booklet "Working with cable cutters": "These safety rules must be applied to protect insured persons against the effects of dangerous body currents and the arcing that may occur when using cable cutters."

We recommend using safety cutting equipment in accordance with DIN EN 50340 to protect the user.

  • Applicable regulations:
    - BG rules for safety and health; working with cable cutters
    - GS-ET-23, principles for the testing and certification of cable cutters
    - EN 50340, hydraulic cable cutters, equipment for use on electrical installations with rated AC voltage up to 30 kV - extended test for cutting energised cables up to 60 kV in the event of a fault.
  • Applicable regulations:
    - VBG 4 "Electrical installations and equipment" 4/1979
    - PrEN 50110 "Operation of power installations"
    - DKE UK 214.5 Draft "Equipment and devices for live working" - intended classification number. VDE 0682 Part 661
  • How often does a safety cutting system need to be checked?

    You use safety cutting systems to prevent the dangers of live power cables. The BG rules for working with cable cutters state that safety cutting systems must be checked by a qualified electrician in accordance with "the manufacturer's specifications" (usually every two years) to ensure compliance with the limit values specified in the electrical regulations. The insulating fluid must be changed at the intervals specified by the manufacturer. At the same time, this time must be documented so that it can be verified at the next use whether the fluid has been properly replaced." (BG regulation version 6/95*)

    We recommend carrying out the test every two years to ensure that the insulating properties of the hydraulic oil are fully guaranteed.
  • What work must be carried out?

    - Inspection in accordance with DIN VDE 0105 Part 100 Section 4.6 and DGUV Regulation 3
    - Changing the insulating oil
    - Damaged parts must be replaced
    - Documentation of the test with pressure test report in accordance with ISO DIN 9000 ff. for your test records
    - Appropriate test stickers must be affixed to the system
  • Can individual parts, for example just the cutting head, be sent in for maintenance?

    No, safety cutting systems must always be sent in for inspection as a complete unit.
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