UL 1696 STANDARD FOR SAFETY Mechanical Protection Tubing (MPT)and Fittings

UL 1696 STANDARD FOR SAFETY Mechanical Protection Tubing (MPT)and Fittings 1 scope 1.1 This Standard applies to nonmetallic or composite mechanical protection tubing (MPT), andnonmetallic,composite or metallic fittings,and clamps used for the support,routing and mechanicalprotection of conductors,wires, and cables. The MPT, fittings, and clamps are intended to be used tointerconnect separate component assemblies or consoles of electrical devices, such as robotics, medicalor X-ray equipment.The mechanical protection afforded the internal wiring contained within the tubing isconsidered equivalent to the protection provided by a type SJT flexible cord.Mechanical protection tubing(MPT) may be submitted without fittings, clamps, etc. 1.2The MPT, fittings, and clamps covered by this Standard are not intended for use as a wiring methodin accordance with NFPA 70,National Electrical Code(NEC),CSA C22.1,Canadian Electrical Code (CECode),Part l and NOM-O01-SEDE Standard for Electrical Installations. 1.3 This Standard does not include standard trade sizes. The MPT, fittings,and clamps from differentmanufacturers are not interchangeable unless the combination of MPT,fittings，and clamps aredetermined to be in accordance with this Standard. 2 Normative References 2.1Where reference is made to other publications, such reference shall be considered to refer to thelatest edition and all amendments published to that edition up to the time when this Standard wasapproved. ASTMTStandards ASTMD 2444 Standard Test Method for Determination of the lmpact Resistance of Thermoplastic Pipe and Fitings byMeans of a Tup (Falling Weight) ASTM D 5025 Standard Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic Materials ASTMD 5207 Standard Practice for Calibration of 20 and 125 mm Test Flames for Small-Scale Burning Tests on PlasticMaterials ASTMD 5423 Standard Specification for Forced - Convection Laboratory Ovens forEvaluation of Electrical Insulation