درباره ما
NEMA - National Electrical Manufacturers Association: Recent submissions
Now showing items 141-160 of 346
-
NEMA C12.20
Abstract: This standard establishes the physical aspects and acceptable performance criteria for 0.2 and 0.5 accuracy class electricity meters meeting Blondel's Theorem. Where differences exist between the requirements of this ... -
NEMA ICS 2.9
Abstract: The standards in this part apply to magnetically-operated, full-voltage vacuum-break, noncombination controllers rated 1500 volts for both motor and non-motor loads. The motor-rated controllers are full-voltage for use ... -
NEMA MS 5
Abstract: This standards publication provides a method for determining the slice thickness of proton images. Both the typical and the typically thinnest slices in routine clinical use for a particular system are determined at one ... -
NEMA WC 58
Abstract: These standards apply to materials, construction, and testing of insulated cables used for the distribution of electrical energy in surface and underground mines and similar applications. Included are portable cables ... -
NEMA C29.2
Abstract: This standard covers suspension-type insulators, 4-1/4 inches (108 millimeters) in diameter and larger, made of wet-process porcelain or of toughened glass and used in the transmission and distribution of electrical energy. -
NEMA IA 2.1
Abstract: This Part of IEC 61131 applies to programmable controllers (PLC) and their associated peripherals such as programming and debugging tools (PADTs), human-machine interfaces (HMIs), etc., which have as their intended use the ... -
NEMA SSL 4
Abstract: This standards publication applies to integral Light Emitting Diode (LED) lamps, which are defined as a lamp with LEDs, an integrated LED driver, and a base that meets appropriate American National Standards (ANSs) and is ... -
NEMA ICS 1.1
Abstract: This Standards Publication is intended to provide general guidelines for the application, installation, and maintenance of solid state control in the form of individual devices or packaged assemblies incorporating solid ... -
NEMA LC 1
Abstract: This Standards Publication sets forth test procedures for use with a small acoustic chamber to evaluate potential interactions between hearing aids and ultrasonic lighting control devices, hereinafter referred to as occupancy ... -
NEMA DC 3
Abstract: This Standards Publication covers self-contained, electrical and electronic, wall-mounted room thermostats for controlling the temperature of the space in which the thermostat is mounted by controlling the applied energy ... -
NEMA WC 53
Abstract: This standard applies to the testing of extruded dielectric insulated power, control, instrumentation, and portable cables.
Included in this standard are many, but not all, of the test methods to which reference is made ... -
NEMA PE 1
Abstract: Foreword
This standards publication is a NEMA Adoptive Standard based on IEC 62040-3, Uninterruptible power systems (UPS) – Part 3: Method of specifying the performance and test requirements. ... -
NEMA OS 3
Abstract: This publication covers guidelines for selection and installation of general purpose and specialty metallic, nonmetallic, and composite outlet boxes such as: device boxes, boxes for luminaires or other products, and junction ... -
NEMA C37.50
Abstract: This standard covers the test procedures for enclosed low-voltage ac power circuit breakers as follows:
a) Stationary or drawout circuit breakers of two-or three- or four-pole construction, with one or more rated maximum ... -
NEMA ICS 2.3
Abstract: This part of IEC 61131 specifies syntax and semantics of programming languages for programmable controllers as defined in part 1 of IEC 61131.
The functions of program entry, testing, monitoring, operating system, etc., ... -
NEMA ICS 8
Abstract: FOREWORD
This standards publication was prepared by a technical committee of the NEMA Industrial Control and Systems Section. It was approved in accordance with the bylaws of NEMA and supersedes the ... -
NEMA C29.10
Abstract: This standard covers high-voltage indoor-apparatus insulators made of wet-process porcelain and used in the transmission and distribution of electrical energy. -
NEMA IA 2.2
Abstract: Foreword
This Standards Publication is a NEMA Adoptive Standard based on Part 2 of IEC 61131, Programmable Controllers.
This Standards Publication was prepared by a technical committee of ...