UL 183-2016 pdf download
UL 183-2016 pdf download.Manufactured Wiring Systems.
17 Control Circuits
17.1 Each control circuit shall comply with the requirements fOr line-voltage circuits.
Exception: A secondary control circuit is not required to comply with the requirements tar line-voltage circuits when all of the following conditions are met:
a) The circuit complies with the requirements tar a Class 2 circuit or a limited power source circuit: and
b) A secondary circuit shall comply with the Standard for Solid-State Controls for Appliances. UL 2444 Compliance with the Standard for Automatic Electrical Controls for Household and Similar Use. Part 1: General Requirements, UL 60730-i. and/or the applicable Part 2 standard from the UL 60730 series fulfills these requirements.
17.2 A switch having an identified ‘ofr function shall be either:
a) An air gap switching device having, in the ofr mode, an air gap between the line and load terminals: or
b) A solid-state switching device having a maximum let-through current of 0,5 mA.
17.3 A switch as mentioned in 17.2(b) shall not be used to provde a disconnect function and shall be
marked as Indicated In 45.19.
17A Supplementary Protectors
1 7A. I Supplementary protectors are optional. When supplementary protection is provided the protection shall comply with the requirements in the Standard for Supplementary Protectors for Use in Electrical Equment, UL 1077. The supplementary protection device shall comply with the following:
a) Be suitable for General Industrial use;
b) Be rated for the maximum voltage of the Manufactured Wiring System or the specific receptacle(s), device(s) or circuit(s) protected by the supplementary protector:
C) The trip current shall be minimum 125 percent of the current rating of the maximum rated receptacle(s), device(s) or circuit(s) protected;
d) The overload rating shall be 6 times the Current rating of the receptacle(s), device(s) or circuit(s) protected;
e) The supplementary overcurrent protection device shall be suitably rated for a fault current of not less than that indicated in Table 17k 1.
f) Be of the automatic-trip-free, manual-reset type.
I 7A.2 A supplementary overcurrent protection device shall open all ungrounded conductors within the circuit it IS Protecting.
I 7A.3 A supplementary overcurrent protection device shall not be connected to the equipment grounding conductor.
1 7A.4 The ampere rating of the supplementary protector shall not be greater than the ampacily of the receptacle(s), device(s) or Circuit(s) protected.
1 7A5 When a supplementary protector does not protect all receptacle(s), device(s) or circuit(s) within the Manufactured Wiring System the receptacle(s), device(s) or circuit(s) shall be Identified to indicate which receptacle(s), device(s) or circuit(s) is protected. See 45.21.
18 Laser Devices
18.1 Laser products shall comply with the Code of Federal Regulations (CFR). 21 CFR Part 1040.
18.2 With reference to 18.1, compliance of laser products with the Code of Federal Regulations (CFR), Title 21 Part 1040. shall be determined by:
a) Determining the Class of the laser product and the Class of the radiation emitted by the laser product (as defined in the CFR) from the manufacturers Center for Devices and Radiological Health (CDRH) product report;
b) Verifying that the manufacturer’s markings and labels having the information specified in the CFR are affixed on the Laser product (as defined in the CFR):
c) Determining that the corresponding construction features, such as protective housing. interlocks, and similar features, are provided in accordance with the CFR:
d) Determining that the resulting construction complies with the construction requirements of this Standard: and
e) Verifying that the manufacture’s safety instructions required by the CFR are provided with the laser product (as defined in the CFR).
19 Splices and Connections
19.1 All splices and connections shall be mechanically secure and provide electrical continuity asdetermined by the Temperature Test，Section 27, and the Vibration’Test，Section 30. A solderedconnection shall be made mechanically secure before being soldered if loosening of the connectionresults in a condition that introduces a risk of fire or electric shock.
19.2 A splice shall be provided with insulation equivalent to that of the conductors involved.
