this is the specified usage context from manufacturer data

reinforced silicone-insulated stranded wire with a cross-sectional area of ​​0

Diameter: 20 mm

Denne Alsident System 50 firkantede skærm (square hood) er designet som en lokal udsugningsskærm til fjernelse af forurenende dampe og gasser

Anti-roll feature (non-roll feature)

Prøveclips AB200 gul/grøn 1000V AC/1500V DC 16A - CATIV MIL18647101401 this is the specified usage. With steel jaws especially for connections to ground rails and thick cables. For increased safety when making contacts, the jaws are insulated on the outside. 4 mm rigid socket in handle accepting spring loaded 4 mm plugs with rigid insulating sleeve.