Static electricity
Friction and subsequent separation of two objects can generate tribo-electrification, the most common source of static electrical discharge, causing electrical shocks when touching metal objects, paper and foils sticking together, static when taking off clothes made of synthetic materials and lightening. The discharge can cause damage to items such as electrical equipment.
Electrical resistance
A floor covering providing a low electrical resistance can quickly dissipate electrical charges. Electrical resistance is expressed in Ohm (Ω)
Marmoleum ohmex is the dissipative linoleum floor covering.
Safety resistance
The electrical resistance of a floor can not be too low. This could cause electrocution when there is contact with a mains voltage of 220-230 Volts.
According the VDE0100/T160 a floor covering has to have a minimal electrical resistance of: 5.104 This minimal electrical resistance of a floor covering is called the safety resistance.