Whenever any vehicle used in the transportation of inflammable liquids in bulk or transporting compressed inflammable gases is disabled upon a highway at any time or place mentioned in Section 56-5-5090, the driver of such vehicle shall display upon the roadway the following lighted warning devices: One red electric lantern shall be immediately placed on the roadway at the traffic side of the vehicle and two other red electric lanterns shall be placed in the front and rear of the vehicle in the same manner as prescribed in Section 56-5-5090 for flares.
When a vehicle of a type specified in this section is involved, the use of flares, fusees or any signal produced by flame as warning signals is prohibited.
S.C. Code § 56-5-5100