IEEE Std 2740:2020 pdf download.IEEE Guide for Selection and Installation of Electrical Cables and Cable Systems in Hazardous (Classified) Locations on Oil and Gas Land Drilling Rigs.
This guide covers the selection and procedures for electrical cables and cable systems installed in hazardous (classified) locations on oil and gas land drilling rigs.
1.2 Purpose
The intent of this guide is to present generally accepted practices for the selection and installation of electrical cables and cable systems in hazardous (classified) locations on oil and gas land drilling rigs. Experience in the oil and gas land rig drilling industry has shown these practices result in safer, more reliable, efficient, and maintainable operations. The practices in this guide should be applied with sound engineering judgment.
This guide will address gaps in the selection, performance, and installation of cables and cable systems for Class 1 hazardous (classified) locations on oil and gas land drilling rigs not adequately addressed in present standards, recommended practices, and guides. The key drivers are flexibility, portability, allowance for innovation, and expanded use of cables and systems utilized in other industries.
1.3 Word usage
The word shall indicates mandatory requirements strictly to be followed in order to conform to the standard and from which no deviation is permitted.
The word should indicates that among several possibilities one is recommended as particularly suitable. without mentioning or excluding others: or that a certain course of action is preferred but not necessarily required (should equals is recommended that).
The word mar is used to indicate a course of action permissible within the limits of the standard (may equals is permitted to).
The word can is used for statements of possibility and capability, whether material, physical, or causal (can equals is able to).
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e.. they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Division 1 and Division 2.
API RP 505, Recommended Practice for Classification of Locations for Electrical installations at Petroleum Facilities Classified as Class 1, Zone 0, Zone 1, and Zone 2.
ICEA P-32-382, Short Circuit Characteristics of’ Insulated Cables.
ICEA P-45-482, Short Circuit Performance of Metallic Shields and Sheaths on Insulated Cables.
ICEA S-75-38l/NEMA WC 58, Portable and Power Feeder Cables for Use in Mines and Similar Applications.
ICEA S-95-658/NEMA WC 70, Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy.
IEC 60287-1-1, Electric Cables—Calculation of the Current Rating—Current Rating Equations (100% Load Factor) and Calculation of Losses—General.
IEEE Std 45.8, IEEE Recommended Practice for Electrical Installation on Shipboard—Cable Systcms.IEEE Std 2740 pdf download.