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Tough rubber-sheathed cable

A typical rubber sheath cable. The conductors are actually copper but are coated and look silver.

Cross section. Note the solid core center earth wire and multi strand power wires.

Tough rubber-sheathed cable is a type of cable which normally consists of a black outer sheath of rubber with several conductors inside. The rubber provides an abrasion-resistant, corrosion-resistant, waterproof, protective covering for an insulated electric cable.

Though obsolete for domestic use, it is used for flexible cables when greater mechanical toughness than PVC is required such as temporary electrical wiring at events where the cable is standardised as Cenelec code H07RN-F (H07 for short)

The American National Electrical Code, for theater use, requires (article 520.68(A).1) cables to be "extra hard usage" rated, and such cable is generally known in the US as SOOW cable. Cables meeting the SOOW spec can also be manufactured to be rated as H07RN-F, so-called "harmonised" cable, and such cable can be used both in the US and Europe.

References

"H07RN-F Cable | Harmonised rubber cable".

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

power-cables

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