ANSI SCTE 203:2019 pdf download.Energy Management Subcommittee.
This document is identical to SCTE 203 2014 except for informative components which may have been updated such as the title page. NOTICE text, headers and footers. No normative changes have been made to this document.
This document specifies physical, environmental, electrical, and sustainahility test procedures to evaluate equipment compliance with requirements defined in ANSI/SCTE 186 2012.
1.3 Requirements Syntax
Throughout this document, specific words are used to define the requirements significance. These words are:
“shall” This word means that the item is an absolute requirement of this specification.
“shall not” This phrase means that the item is an absolute prohibition of this specification.
“should” This word means that there may be valid reasons in particular circumstances to ignore this item, but the full implications should be understood and the case carefully weighed before choosing a different course.
“should not” This phrase means that there may exist valid reasons in particular circumstances when the listed behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label.
“may” This word means that this item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because it enhances the product, for example; another vendor may omit the same item.
2.2 Equipment Static Load (chassis static force test)
No mechanical damages or visible deformation, exposure to shock hazard or sharp edges shall occur when the equipment housing is subjected to a static force of 251bf (I 11 N) applied via a 1 .2 inch diameter steel hemisphere for a period of one (1) minute. The equipment shall withstand the static load when applied to various locations on the top, bottom, right side, and left side of the equipment both when it is free standing and when it is housed or mounted using the vendor supplied mounting brackets.
2.3 Impact Force Resistance
The external metal enclosure of the device / product (intended for use in a controlled environment) shall be subjected to an impact generated by a free-falling smooth, solid steel sphere 2 inches (5.08cm) in diameter and weighing approximately 1.18 lbs (0.535 Kg).
• The sphere is to fall freely form a height of 51 inches (129.54cm) at various locations on the outside of the enclosure.
• The tests shall not result in permanent distortion to the extent that wire to ground or chassis spacing is
reduced below the following values:
For 0 to 50 Vrms peak: 1/16”
For >50 to 150 Vrrns peak: 1/4”
For 150 to 600 Vrms peak: 1/2”
• The tests shall not result in any distortion that produces contact of the enclosure with un-insulated electrically active parts other than those connected in a low voltage circuit.
• The tests shall not result in the unit developing any opening(s) that expose electrically active un-insulated parts that create a risk of electrical shock or high energy current levels.
2.4 Microphonics Emissions
• The device / product shall withstand minimum impact energy of 0.7 Newton-meters (Nm) applied to the device / product at various chassis locations without harmful or detrimental effect to any functional service provided by the test specimen (i.e., bit errors, spurious emissions, macro-blocking, interruption. lock-up or any other signal flow impairment).
• Microphonics impacts should be made with a calibrated impact hammer such as the E D &D Models 5110 or F22.50 (or equivalent).
• Information on the models listed above may be reviewed at http://www.productsafet.com.
• Specification reference for the type of impact hammer to be used is IEC 68-2-63 / 1991 (or latest version).
• Impacts shall be imparted to each of the six operational planes of the device/product to be tested.ANSI SCTE 203 pdf download.