IEEE Std 1071-2019 pdf download

IEEE Std 1071-2019 pdf download.IEEE Application Guide for an Engineered Restoration Program for Failed Transmission Structures.
1.4 Mutual assistance programs
Many regions of thc countiy have mutual assistance programs madc up of utilities that provide support to their participating members. The mutual assistance program can decrcasc the line outage time during major storm situations. The utility may call on mutual assistance from other member utility owners for trained crews, equipment, line materials, and structures.
1.5 Other
Requirements of federal, state, or local regulations should be observed. When any conflict esists between this guide and the rules of the line owner, the ownel’s rules should take precedence.
2. Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Standarttc Dictionart Ortlinc should be consulted for tenns not defined in this clause.
anchoring systems Anchoring systenis otTsct’supporl the loads on guy wires generated by line loads on the structure.
engineered restoration structure (F,RS): Aguyed transmission structure made from standardized lightweight components that can be assembled into a variety of structure types with ariable height and load capacity.
engineered Iransmlsalon restoration structure (ETRS): Any structure designed to be used for the restoration of a line, including, but not limited to. steel poles, wood poles. concrete poles. andor ERS. and associated hardware.
foundations: A component upon which a structure is supported at the ground line level. Esamples: Spread foundation, screw-in foundation, friction foundation. grillage foundation, anchor bolt foundation. etc.
gu lug: Connecting anchors to structures using rated steel guy wires.
installer: A person or organization qualified to perform various linc.wo,1 operations, including aerial and groundwork.
loading: Fortes generated by wind, weight, and tension. Additional infonnation may be found in 4. I.
mutual assistance A voluntary partnership of electric utilities and contractors that support one another with crews, equipment, and materials during large emergency situations such as hurricanes and ice storms,
permitting: Approval processes through local, state, and federal rcgubting authorities pertaining to environmental, lands, and transportation.
routine Inspection: Interval in which stored components of engineered restoration structures should be inspected.
routine program resie: A review of the ETRS program pcrt’ormcd on a set schedule as determined by the owner.
storage: Process in which to manage all components of the engineered restoration structures
3. Safety
3.1 Introduction
To perform the safe installation of the engineered transmission restoration structure the installer should have knowledge of the particular structure design and the intended use, as well as the manufacturer’s recommended procedurcs. The installer should be aware of the different structure components, strength requirements, guying requirement. anchoring requirements, as wcll as any limitation of the components that may be used for the particular installation. Utilities and’or asset owners may identify an engineered transmission restoration structure (ETRS) design that could facilitate the restoration of numerous structure designs. One example could be the use of single pole steel to use on a particular single-pole wood line and the same poles could also be used to restore a downed H.franie two.polc structure. All ETRS can have many diftrent structure designs depending on the need of the owner utility. The engineered restoration structure (ERS) design has many components that are stacked and boltcd together to meet the specific needs; the installer should be aware of the intended use of the structure prior to installation. The design engineer and the installer should determine all loads to be applied to the structure in order to help ensure the structure can hold these loads.
There are a number of site-specific conditions that have lobe considered during installation ofany engineered restoration structure;
Terrain
— Soil condition
Right of way boundaries and width
— Clearance to adjacent lines
— Access for heavy equipment
Wrtical limitation
Wgctation
Population and pedestrian activity
Methods ot’permanent restoration
Required permitting and approvals
– Undergmund facilities Specia’ land issues
Environmental permits
— Cultural review
Installation of the ETRS can bc accomplished in most applications by traditional construction practices since many of the structure types are commonly used and installed in routine work. When unique structure designs are used, special training may be required to understand special requirement to safely install the structures.
3.2 General safety considerations
The following general safety guidelines are applicable to all ErRS. The following list is not all inclusive, but is intended to provide a quick reference list of some of the more important considerations during erection of the structure(s):
a) A safely briefing and hazard assessment shall be performed prior to beginning work,
b) I hive sufficient ground personnel for the erection method being used.
c) Do not use rope to temporarily guy the structure, Rope can stretch. Use steel wire at all times.