S.C. Code Ann. § 24-5-160
The police officer or deputy sheriff in an industrial community may confine in such prison or building as the president, treasurer or other executive officer having the management of any industrial corporation may provide in an industrial community any person who may be arrested charged with violation of law until such arrested person can be conveniently carried before a magistrate. But such police officer or deputy sheriff shall not detain any arrested person in such prison longer than eighteen hours, except persons arrested on Saturdays and then not over forty-two hours. Such police officer or deputy sheriff shall provide water and food and shall also furnish such arrested person with sufficient bedding or clothing to make him comfortable in cold weather.