Memphis |
Code of Ordinances |
Title 14. BUILDINGS AND CONSTRUCTION |
Chapter 14-16. ELEVATORS, DUMBWAITERS, ESCALATORS AND AMUSEMENT DEVICES |
Article 6. MINIMUM SAFETY REQUIREMENTS FOR ELEVATORS |
§ 14-16-59. Car and counterweight cables.
A.
Material. Cables for power elevator cars and counterweights shall be of iron or steel.
Exception: the division of public service and the supervising inspector may permit marlin covered steel cables where liability of corrosion or other hazard exists.
B.
Tags. Wherever cables are renewed, a metal tag shall be attached to the new cables at their fastenings. On this tag shall be stated the diameter, rated ultimate strength and material of the cables, the date of the cable installation and the name of the person or firm who installs the cables.
C.
Diameter. Hoisting cables for power elevators shall not be less than one-half-inch in diameter.
D.
Number of cables for drum machine. No winding drum power elevator shall be used for passenger service and, when practical, for freight service, unless it is equipped with two or more hoisting cables.
E.
Splicing prohibited. No cable shall be lengthened or repaired by splicing.
F.
Top clearances. Whenever car or counterweight cables are replaced, the car and/or counterweight top clearances shall not be reduced below the requirements of section 14-16-104(E).
G.
Cable rating. Safe working loads for cables shall be based on the manufacturers' rated ultimate strength of the cables and should not exceed those permitted for new elevators. In no case shall the factor of safety of cables for power elevators be less than six for freight elevators or less than seven for passenger elevators. For hand power elevators, the factor of safety for the cables shall be not less than four. In no case shall the factor of safety of new cables be less than those of the cables replaced.
H.
Cable strength. Where the material and rated ultimate strength of cable is not known, the loads shall be limited to the loads allowed for iron cables of the same diameter.
(Code 1967, § 49-109; Code 1985, § 46-129)