Safety and Security Electricity

Safety and seurity

A) Buildings, grounds

-Grounds, fencing, gates

-Building accesses (against break-ins)


-High tension line nearby – building should be earth-leakage protected (and eventually lightning strikes)

-Statics, building services

B) Fire protection

-Emergency exits, escape ways, gathering spots

-Possibly sprinkler

-Fire extinguishers, fire hose cabinets

-Fire protection plans

C) Job safety

-Height of railing, guardrail

-Light and view

-Sun and rain protection, heat and cold protection


-Toilets, showers, changing rooms, cafeteria

D) Safety rules

-Dangers are: missing caps, damaged cables, uncoated wires, pulled-out protective conductors, sawn-off protective conductor pins on plugs, missing fault current safety measures (earth-leakage/RCD), unsuitable utilities and tools (moisture, wetness, rain)

-Are the devices specially isolated, equipped with an international connector and labelled according to protection class?

-Are all conductive elements covered (connecting terminal of machine, covers, power socket cases, switches etc.)?

-Are the used cables intact (undamaged and not “patched” with isolating tape)? No openly lying around cables in the traffic zone, no clamped cables in doors or windows, no items lying around on the cables (e.g. machines, frames, etc.), are only suitable cables used?

-Was the arrangement made by a licensed fitter, has an installation control been done, is the proof of safety present? Are there enough fixed power socket distributors? Earth-leakage?

-Were the electronic instruments provided by a specialist? Were the ergonomics (e.g. hand-fitting grip) considered during the purchase of the electronic instruments? Is a declaration of conformity from the producer or seller included, is an instruction manual within reach for every machine? Are the devices in good condition (switches, casing, cables)? Are the electronic instruments equipped with security measures provided at purchase?

-Especially for the students: does the current come out of the device, is it controllable? Are the exercise elements equipped with a fuse and an earth-leakage switch? Do the cables have no bare spots? Are there additional safety measures for the exercises (e.g. frames, in which the exercise elements can be plugged in, exercise tables with folding power sockets and measurement devices (with fuses and earth-leakage?) and without metallic pieces)? Are all earth-leakage switches and fuses for all power sockets in the classroom centralized and merged in a locked secondary room? Are only licensed fitters working on them (maintenance and repair work)? Are the students taught in “safety”?

E) Heavy current / error current (electrical fitters vs. electrical engineers)

-Electrical fitters – heavy current à personal security

-Electrical engineers – error current, static current à protection of the chips that get destroyed by error current

F) Installations / devices

-Cable conduit

-Earth-leakage protected power sockets


-Water/current separation

-Keeping devices and testing facilities under lock after the activities (and during breaks)

-Maintenance of the site

-Professional repair and test before recommissioning

-Disposal of materials (separated, recycling)

G) Staff

-Access control (only authorized staff) – what happens during the breaks and before and after the class?

-Beneficiaries (keys, registration in list, etc.)

-Clear task, obligation to follow the safety measures (possibly wear protective equipment: shoes, gloves, vests, glasses, etc.), use only flawless materials and tools – control before starting

-Instructed staff: safety instructions are always binding (important instructional themes are (as above): correct use of tools, possibly use of personal protective equipment, electrical devices must only be operated on power sockets with safety measures for error current (earth-leakage / RCD) outside and in wet areas! Storage and maintenance, protection of cables and extension cables from damage in traffic ways, protection of electrical machines and cables from moisture). Is there a determined person responsible for repair and maintenance? Does everybody know, where to bring faulty machines? A breach of safety must be rectified immediately! No improvisation!

-Determine security guarantor à trainings, document process (PQM); are safety-aspects regularly checked, if needed corrected and newly instructed?

-Has the cleaning staff been instructed? Are all devices and materials safe?

H) First-aid

-Defibrillator, band-aid, possibly eye shower, dispositions for burns

-Emergency plan and emergency drills

I) General

-Hazard analysis

-Registration of incidents

-Classification of materials, devices – and their respective storage and handling (instructions)