Book:Cambridge English for Engineering

Unit 7:Key words.

Asphyxiation……..death due to lack of oxygen.

Guard rail…………….safety rail designed to prevent people falling from high places.

Hazard…………………..danger

Fumes……………………strong,unpleasant and sometimes dangerous gas or smoke.

LV……….low voltage

HV……….high voltage

Switchboard……………control panel containing several switches for all industrial circuits of an electrical installation.

Switchgear………..collective term for switching equipmemt.

Arc……….electrical current travelling a short distance through air flow between two conductors.

Wand…….stick

Discernible………..noticeable

Sump………hollow or pit in to which liquid drains.

Obstruction………..block,hindrance.