Joalo ka likhoele tsa motlakase tse tharo kapa tse 'ne li lekantsoe li-volts tse 600, 90 deg.C. dibakeng tse omeletseng kapa tse metsi.
E amohetsoe ka ho khetheha bakeng sa ho kenngoa litereneng tsa cable ho latela Article 340 ea NEC.Lithapo tsa mofuta oa TC li lumelletsoe ho sebelisoa libakeng tse kotsi tsa indasteri tsa Sehlopha sa I Karolong ea 2 ka NEC.Lithapo li ka kenngoa moeeng o sa lefelloeng, litselaneng tsa mabelo kapa lepato le tobileng, libakeng tse metsi kapa tse omeletseng.Lithapo tsohle ha li sebelisoa ho latela NEC, li fihlela litlhoko tsa OSHA.
Mokhanni oa mohala o ka ba koporo kapa aluminium kapamotsoako oa aluminium.Palo ea li-cores e ka ba 1, 2, 3, hammoho le 4 le 5 (4 le 5 hangata ke lithapo tsa motlakase o tlase).
Thepa ea lihlomo ea thapo e ka aroloa ka terata ea tšepe ea tšepe le lisebelisoa tsa tšepe tsa tšepe, le lisebelisoa tse se nang makenete tse sebelisoang ka har'a thapo e le 'ngoe ea AC.