ANSI NEMA C136.53-2017 pdf free download – Roadway and Area Lighting Equipment — Enclosed Pendant Mounted Luminaires.
3 Informative Reference
This standard is intended to be used in conjunction with the following publication. The latest edition of the publication applies (including amendments).
ANSI C1 36.21 American National Standard for Roadway and Area Lighting Equipment—Vertical Tenons Used with Post Top-mounted Luminaires
4 Mounting Provisions
4.1 NPT Thread Mount
The luminaire/mounting housing shall be tapped with internal 1 ¼ in., 1 ½ in., or 2 in. NPT pipe threads,per ANSI/ASME B1 .20.1 . The luminaires shall also have provisions for applying a wrench to tighten as per manufacturer’s specifications and to provide anti-rotation.
4.2 Ball-and-Socket Style Mount
Ball-and-socket style mount shall have restriction ring securely attached to the luminaire. Restriction ringshall be designed to be securely clamped inside an arm and/or adapter bracket and shall meet the leveling requirements in clause 4.3.
4.3 Leveling
The mounting mechanism shall allow for the luminaire to self-level; allowing the luminaire to remain ± 1 ° from vertical.
5 Electrical Connections and Wiring
5.1 Terminal Block
If a terminal block is specified, then it shall be a closed-back, fully insulated terminal block with a minimum of two line-side pressure-type wire connectors having slotted-head captive screws shall be securely mounted in the luminaire, so that incoming conductors will clear all internal accessories. Each connector shall accept only one conductor (either solid or stranded), from 1 4 American Wire Gauge (AWG) to 6 AWG copper/aluminum .
All connectors shall be clearly designated and marked as to what leads to connect to them.
5.2 Connectors Internal to the Luminaire
Each connector’s terminal shall be rated for the wire being connected. No twist-on wire connector shall be used for any connection.
5.3 Supply Leads If instead of a terminal block, supply leads are provided in the luminaire, they shall conform to the color coding of the National Electrical Code ® for the various voltages. Leads shall be properly secured with strain relief suitable for the wires and cables to prevent mechanical stress on the connection points in the luminaire. Leads shall extend a minimum of 1 2 inches outside the electrical cavity or as specified by the user to allow for splicing. Leads shall be between 1 2 and 1 8 AWG copper.
5.4 Wiring and Grounding All internal components shall be assembled and pre-wired so that the luminaire can be energized by line connections at the terminal block. Internal luminaire conductors shall have insulation rated to exceed the maximum temperature inside. A means shall be provided for grounding the noncurrent-carrying metal parts of the luminaire. All wiring and electrical components (including the photocontrol receptacle) shall not exceed their temperature design limits when the luminaire is operated. This includes draft-free air across the luminaire operating temperature or as otherwise specified.
6 Assembly Features The luminaires shall be constructed to securely attach or retain all internal components in their proper place without relying on gravity. Provision shall be made for supporting access closures while installing or servicing. Captive devices shall secure all access closures.
7 Voltage Classification The luminaire shall be 600-volt classification as defined in ANSI C1 36.2.
8 Lamp Socket
8.1 High-Intensity Discharge (HID) Luminaires Luminaires shall be equipped with either a medium or mogul screw-based socket that meets requirements of ANSI C1 36.4 and ANSI C1 36.1 1 . ANSI NEMA C136.53 pdf download.