This standard states basic construction@ test@ and marking requirements for fixture wires. Fixture wires are single conductor and are of the following types: 600 volt Types: PTF@ PTFF@ PAF@ PAFF@ KF-2@ KFF-2@ PF@ PFF@ PGF@ PGFF@ SF-2@ SFF-2@ ZF@ ZFF@ ZHF@ TF@ TFF@ TFN@ TFFN@ RFH-2@ FFH-2@ RFHH-2@ and RFHH-3 300 volt Types: KF-1@ KFF-1@ SF-1@ SFF-1@ XF@ and XFF These types are for use as specified in Article 402 and other applicable parts of the National Electrical Code (NEC)@ ANSI / NFPA 70. These types are as described individually in index Tables 4.1 ?C 4.9 of this standard.