Nail clamp
Nail clamps (also called cable clamps) are used in electrical installations to secure electrical cables to the ground.
Nail clamps are usually made of plastic. They are mainly used for surface mounting to fix power supply lines on wood or masonry.
Assembly
Mostly nail clamps are attached with nails according to their name . Often, suitable hardened, galvanized steel nails are already inserted with their pointed ends clamped (see picture) - trade name Express-Schellen - or at least enclosed.
Clamps, which, thanks to the elastic, tapering curve, encircle the cable by more than 180 °, hold on to the cable itself and yet can be easily moved lengthways, so that installation in confined spaces (e.g. in furniture) or overhead on ceilings is made easier.
To a certain extent, clamps are used to align and adjust cables to their desired route. To fix them with thin universal or metal screws, they usually have to be drilled open a bit.
Nail clamps are attached to electrical lines and telephone cables at a distance of about the length of a hammer handle and to arches (curves) or distributors about 5 cm in front of and behind the arches or distributors.
Often not nail clamps, but cable clamps are used for electrical lines .
Protective pipes for cables are often fastened with - snap - pipe clips .
literature
- Hans-Günter Boy, Uwe Dunkhase: Electrical installation technology. The master's examination . 13th, revised and expanded edition. Vogel, Oldenburg and Würzburg, 2011, ISBN 978-3-8343-3187-8
- Winfrid Hauke, Rolf Thaele, Günter Reck: RWE Energie Bau-Handbuch . 13th edition. Energie-Verlag, Heidelberg, 1998, ISBN 3-87200-700-9