Derrick standard

Effective July 26, 2012, up to November 8, 2013, the Occupational Safety and Health Administration (OSHA) intends to follow the temporary enforcement policy described below for use of proximity alarms and insulating links with cranes or derricks while engaged in constaiction activities near power lines. The construction Cranes and Derricks standard, 29 CFR 1926 Subpart CC, includes several options for cranes and derricks performing constaiction activities near power lines. 

Canter, D. (1990). Fires and Human Behaviour, 2nd edn. David Fulton Publishers Ltd. DHHS-CDCP-NIOSH (US). (2002). Electrical Safety Student Manual. Cincinnati, NIOSH. Editorial. (2002). Negotiated Rulemaking. OSHA Proposes Crane and Derrick Standard Changes. Professional Safety, 47(9), 15. 

Standard Derricks 501. Load Capacities 506. Design Loadings 508. Design Specifications 511. Maintenance and Use of Drilling and Well Servicing Structures 515. Derrick Efficiency Factor 521. 

For modern derrick and mast designs, API Standard 4F is the authoritative source of information, and much of this section is extracted directly from this standard. Drilling and well servicing structures that meet the requirements of API Standard 4F are identified by a nameplate securely affixed to the structure in a conspicuous place. The nameplate markings convey at least the following information ... 

A standard derrick is a structure of square cross-section that dimensionally agrees with a derrick size shown in Table 4-1 with dimensions as designated in Figure 4-1. 

All derricks and masts will fail under an excessively large load. Thus API makes it a practice to provide standard ratings for derricks and masts that meet its specifications. The method for specifying standard ratings has changed over the years therefore, old structures may fail under one rating scheme and new structures may fail under another. 

API Standard 4A (superseded by Standard 4F) provides rating of derrick capacities in terms of maximum safe load. This is simply the load capacity of a single leg multiplied by four. It does not account for pipe setback, wind loads, the number of lines between the crown block and the traveling block, the location of the dead line, or vibratory and impact loads. Thus, it is recommended that the maximum safe static load of derricks designed under Standard 4A exceed the derrick load as follows ... 

This is an API Standard 4A rating capacity and should not be confused with the actual derrick load that will be discussed in the section titled Derricks and Portable Masts."... 

In addition to withstanding some minimum load or loads (sections titled Load Capacities and Design Specifications ), derricks and masts that satisfy API standards must also satisfy certain requirements regarding materials, allowable stresses, wind, dynamic loading, earthquakes and extremes of temperature. 

The visual field inspection of derrick or mast and substructure procedure is recommended for use by operating personnel (or a designated representative) to the extent that its use satisfies conditions for which an inspection is intended. A sample report form for this inspection procedure can be found in API Standard 4F. Forms are also available from International Association of Drilling Contractors (lADC). 

Figure 4-486. Basic layout for drilling rig with standard derrick.

API Standard 4A, Sixteenth Edition API Specification for Steel Derricks," (American Petroleum Institute), Dallas, April 1967. 

The construction standards in 29 CFR 1926 apply specific rules to employers in the construction industry, although the general industry rules in Part 1910 remain in effect. The regulations in Part 1926 cover personal protective and life saving equipment (Subpart E), fire protection and prevention (Subpart F), fall protection (Subpart M), commercial diving (Subpart Y), and cranes and derricks (Subparts CC and DD). 

CPL 02-01-057 — Compliance directive for the cranes and derricks in construction standard. 

OSHA s 29 CFR 1926 Subpart CC, Cranes and Derricks in Construction Standard requires operators of most types of cranes to be qualified or certified under one of the options in 1926.1427. Employers have a seven-year phase-in period to ensure that their operators are qualified or certified (the deadline for operator qualification/certification is November 10, 2017), unless they are operating in a state or city that has operator requirements that are in effect earlier than that. (Note On September 26, 2014, OSHA finalized a rule to extend the deadline for crane operator qualification/certification to November 10, 2017.)... 

OSHA s 29 CFR 1926 subpart CC, Cranes and Derricks in Construction Standard, requires riggers to be qualified to perform their job. 

Subpart N deals specifically with the operation of cranes, derricks, hoists, elevators, and conveyors in the construction industry. In this subpart, employees shall comply with the applicable manufacturer s standards for cranes and derricks. However, when there are no manufacturer s standards. 

New Occupational Safety and Health Administration (OSHA) crane and derrick safety rules came into effect in November 2010. The revised standards are intended to prevent the leading causes of crane fatalities such as falls, crushing/strik-ing, and electrocution. The new rules also include requirements related to ground condition assessments, crane operator qualifications, pre-erection inspections, and several other issues. 

BS CP 3010 1972 Safe use of cranes (mobile cranes, tower cranes and derrick cranes). British Standards Institution, London... 

ASTM FI 797-09 Standard Test Method for Acoustic Emission Testing of Insulated and Non-lnsulated Digger Derricks. 

Hand signals to crane and derrick operators shall be those prescribed by the applicable ANSI standard for the type of crane in use. An illustration of the signals shall be posted at the job site. 

National Standards Institute B30.6-1969, Safety Code for Derricks. 

During the first three years of the Obama Administration, OSHA completed a single pending rulemaking (a safety standard protecting crane and derrick workers from falls and electrocutions) before the 2010 elections returned the House to the Republican Party, at which point OSHA once more became a... 

B30 Committee cm Safety Standards fin- Cableways, Cranes, Derricks, Hmsts, Hooks, Jat s, and Slin Joseph Pang (212) 591-8525 B56 Committee cm Powered and Ncmpowered Industrial frocks Umberto DTJrso... 

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