Standards News

Seven PLASA Standards for reaffirmation up for Public Review

Posted on Tuesday, January 7th, 2014

Seven PLASA standards up for reaffirmation are posted for public review on the PLASA TSP website . No changes are planned at this time for the requirements in the standards. Any changes would be limited to changing “ESTA” to “PLASA,” updating the PLASA office address and copyright date, and so on. However, this public review period is a time when the public is invited to tell PLASA if they think changes are needed.

All the documents are available for review now, and will be through 3 February 2014. On February 4 they will be gone. In alpha-numeric order the standards are:

ANSI E1.5 – 2009, Theatrical Fog Made with Aqueous Solutions of Di- and Trihydric Alcohols

ANSI E1.5 describes the composition of theatrical fogs or artificial mists that are not likely to be harmful to healthy performers, technicians, or audience members of normal working age. It is limited to those fogs and mists made from a solution of water and one or more dihydric or trihydric alcohols, and is intended to be applied in theatres, arenas, and other places of entertainment or public assembly.

ANSI E1.27-2 – 2009, Recommended Practice for Permanently Installed Control Cables for Use with ANSI E1.11 (DMX512-A) and USITT DMX512/1990 Products

ANSI E1.27-2 is a recommended practice for permanent data cabling installations for interconnecting lighting equipment that comply with ANSI E1.11 (DMX512-A) or with USITT DMX512/1990. The recommendations include definitions of acceptable cable and connector types and the ways in which they may be used.

ANSI E1.29 – 2009, Product Safety Standard for Theatrical Fog Generators that Create Aerosols of Water, Aqueous Solutions of Glycol or Glycerin, or Aerosols of Highly Refined Alkane Mineral Oil

ANSI E1.29 – 2009 is intended to help guide product safety testing laboratories in evaluating fog-making equipment for design or construction defects that might create unacceptable hazards. It is based on ANSI/UL 998 – 2006, Humidifiers, with modifications. Products covered are theatrical fog generators intended for use in professional theatrical entertainment, film and video production, theme parks, and fire safety training.

ANSI E1.30-3 – 2009, EPI 25, Time Reference in ACN Systems Using SNTP and NTP

ANSI E1.30-3 is another recipe in the E1.30 cookbook for ACN. It offers ways of providing a time reference so that events can be synchronized.

ANSI E1.30-7 – 2009, EPI 29, Allocation of Internet Protocol Version 4 Addresses to ACN Hosts

ANSI E1.30-7 is a recipe that changes some of the rules for ACN so that devices with IP addresses not set by DHCP (fixed IP addresses) can be used on a network. Device Host Configuration Protocol (DHCP) is a very convenient way to assign IP addresses on a network, but there are cases when IP addresses have to be assigned a different way, perhaps manually. This EPI suggests how.

ANSI E1.30-10 – 2009, EPI 32, Identification of Draft Device Description Language Modules

ANSI E1.30-10 is a recommended way of identifying a Device Description Language Module for ACN as a trial version, one under development, not for release yet. ANSI E1.30-10 is part of an open series of E1.30 documents that suggests ways of doing common tasks with ANSI E1.17, Architecture for Control Networks. It is being considered for reaffirmation.

ANSI E1.34 – 2009, Entertainment Technology – Measuring and Specifying the Slipperiness of Floors Used in Live Performance Venues

ANSI E1.34 describes a simple means of measuring and specifying the slipperiness of floor surfaces used by performers in live entertainment venues. The standard is not for normal walking and working surfaces, but only for those floor surfaces used by actors, dancers, and other similar artists when performing before an audience.

PLASA Technical Standards Program website

 

Proposal for new extensions to DMX512

Posted on Monday, June 3rd, 2013

The PLASA Technical Standards Council has approved a new project within the Control Protocols Working Group: BSR E1.49, DMX512 Extensions for Architectural Lighting.

The project is in response to the increased use of ANSI E1.11 in architectural applications, sometimes with proprietary Alternate START Code messages to make it more suitable for these applications. Of particular interest is providing direct control of architectural luminaires rather than simply controlling dimmers or switches that power them.

At this time the project is expected to build on ANSI E1.11’s physical layer, but initial investigations will consider if EIA-485-A is indeed the best networking technology for direct luminaire control.

People and companies having a material interest in this project are invited to participate, either by joining the Control Protocols Working Group or by responding during future public reviews of the draft document. Membership in PLASA is not a requirement for working group membership, but voting members are required to attend meetings and to vote on letter ballots.

More information about joining working groups and a link to the required working group application form are available at tsp.plasa.org/tsp/working_groups/index.htm

And just a reminder in case you missed the recent announcement that all PLASA Technical Standards are now available free to download, courtesy of ProSight Specialty Insurance at plasa.me/prosightstgecrft. (If only someone would do the same thing to improve safety in Australia by providing access to  Australian Standards like Test & Tag.)

 

PLASA and ProSight in safety standards partnership

Posted on Wednesday, April 17th, 2013

ProSight Specialty Insurance, a global specialty insurance carrier in the film and live events industry, has announced that it is partnering with PLASA, the global leader in developing technical standards for the entertainment industries. The organisations have collaborated to advance PLASA’s Technical Standards Programme to increase safety throughout entertainment production. Together ProSight and PLASA are ensuring that every professional in the business has access to all PLASA Technical Standards by making them available to anyone free of charge.

Download documents here http://plasa.me/prosightstgecrft

 

Three PLASA Standards in Public Review

Posted on Wednesday, February 6th, 2013

Three PLASA standards are now in public review. The public review materials for the standards are available at the URL below. The last day to comment for each of them is April 1. The reviews have ended when April 2 starts.

BSR E1.44 – 201x, Common Show File Exchange Format for Entertainment Industry Automation Control Systems – Stage Machinery, defines a common show file format for the exchange of automation control data between control systems by different manufacturers of stage machinery.

BSR E1.45 – 201x, Unidirectional Transport of IEEE 802 Data Frames Over ANSI E1.11 (DMX512-A), defines a minimal method to transport IEEE 802 data frames unidirectionally over ANSI E1.11 physical links using an Alternate START Code. The primary motivation is to allow communication of 802 data to luminaires over an ANSI E1.11 DMX512-A datalink for data transmission from those luminaires using Visible Light Communication, IEEE 802.15.7. However, this standard may be used to transport any 802 data for any purpose.

BSR E1.48 – 201x, A Recommended Luminous Efficiency Function for Stage and Studio Luminaire Photometry, specifies an energy-based luminous efficiency function V(lambda) based on recent research for use when measuring the lumen output for any stage or studio luminaire in which it is known or believed that 20% or more of the output power is at wavelengths shorter than 500nm. Most light meters in use today use the 89-year-old CIE 1924 V(lambda) function. It’s wrong, so the meters are wrong. This standard is intended to encourage the use of a far more accurate V(lambda) function in the entertainment industry.

For more information, please contact Karl G. Ruling, PLASA technical standards manager, at karl.ruling@plasa.org.

Three PLASA standards are now in public review. The public review materials for the standards are available at the URL below. The last day to comment for each of them is April 1. The reviews have ended when April 2 starts.
BSR E1.44 – 201x, Common Show File Exchange Format for Entertainment Industry Automation Control Systems – Stage Machinery, defines a common show file format for the exchange of automation control data between control systems by different manufacturers of stage machinery.
BSR E1.45 – 201x, Unidirectional Transport of IEEE 802 Data Frames Over ANSI E1.11 (DMX512-A), defines a minimal method to transport IEEE 802 data frames unidirectionally over ANSI E1.11 physical links using an Alternate START Code. The primary motivation is to allow communication of 802 data to luminaires over an ANSI E1.11 DMX512-A datalink for data transmission from those luminaires using Visible Light Communication, IEEE 802.15.7. However, this standard may be used to transport any 802 data for any purpose.
BSR E1.48 – 201x, A Recommended Luminous Efficiency Function for Stage and Studio Luminaire Photometry, specifies an energy-based luminous efficiency function V(lambda) based on recent research for use when measuring the lumen output for any stage or studio luminaire in which it is known or believed that 20% or more of the output power is at wavelengths shorter than 500nm. Most light meters in use today use the 89-year-old CIE 1924 V(lambda) function. It’s wrong, so the meters are wrong. This standard is intended to encourage the use of a far more accurate V(lambda) function in the entertainment industry.
For more information, please contact Karl G. Ruling, PLASA technical standards manager, at karl.ruling@plasa.org.
 

Standard for Gobo Projection in Public Review

Posted on Monday, December 3rd, 2012

ANSI E1.35 – 2007, Standard for Lens Quality Measurements for Pattern Projecting Luminaires Intended for Entertainment Use, is being revised to increase the accuracy of the measurement procedure, while keeping it simple. The draft of the revised standard is available for free download and comment through 21 January 2013 at the URL below.

E1.35 describes a method for measuring and stating the sharpness of the image projected by a stage and studio luminaire. It’s meant to be a simple way to distinguish quantitatively between luminaires as to the crispness of their projected images.
For more information, please contact Karl Ruling, PLASA’s technical standards manager, at karl.ruling@plasa.org.
tsp.plasa.org/tsp

ANSI E1.35 – 2007, Standard for Lens Quality Measurements for Pattern Projecting Luminaires Intended for Entertainment Use, is being revised to increase the accuracy of the measurement procedure, while keeping it simple. The draft of the revised standard is available for free download and comment through 21 January 2013 at the URL below.

E1.35 describes a method for measuring and stating the sharpness of the image projected by a stage and studio luminaire. It’s meant to be a simple way to distinguish quantitatively between luminaires as to the crispness of their projected images.

For more information, please contact Karl Ruling, PLASA’s technical standards manager, at karl.ruling@plasa.org.

tsp.plasa.org/tsp

 

Two Chain Hoist Rigging Standards in Public Review

Posted on Monday, December 3rd, 2012

Two draft Rigging Working Group standards related to the use of chain hoists in the entertainment industry are available for free download and comment at the URL below through January 28, 2013. Materially affected members of the public are invited to review them.

BSR E1.6-2 – 201x, Entertainment Technology — Design, Inspection, and Maintenance of Electric Chain Hoists for the Entertainment Industry, is part of the E1.6 powered entertainment rigging project. This draft standard covers the design, inspection, and maintenance of serially manufactured electric link chain hoists having capacity of two tons or less and used in the entertainment industry. This standard does not cover attachment to the load or to the overhead structure.

BSR E1.6-4 – 201x, Portable Control of Fixed-Speed Electric Chain Hoists in the Entertainment Industry, is a standard for the controls often used to operate the chain hoists that are the subject of E1.6-2.

For more information, please contact Karl Ruling, PLASA’s technical standards manager, at karl.ruling@plasa.org.

tsp.plasa.org/tsp

Two draft Rigging Working Group standards related to the use of chain hoists in the entertainment industry are available for free download and comment at the URL below through January 28, 2013. Materially affected members of the public are invited to review them.
BSR E1.6-2 – 201x, Entertainment Technology — Design, Inspection, and Maintenance of Electric Chain Hoists for the Entertainment Industry, is part of the E1.6 powered entertainment rigging project. This draft standard covers the design, inspection, and maintenance of serially manufactured electric link chain hoists having capacity of two tons or less and used in the entertainment industry. This standard does not cover attachment to the load or to the overhead structure.
BSR E1.6-4 – 201x, Portable Control of Fixed-Speed Electric Chain Hoists in the Entertainment Industry, is a standard for the controls often used to operate the chain hoists that are the subject of E1.6-2.
For more information, please contact Karl Ruling, PLASA’s technical standards manager, at karl.ruling@plasa.org.
tsp.plasa.org/tsp
 

Four PLASA Standards in Public Review

Posted on Tuesday, November 20th, 2012

Four PLASA standards are now in public review through the end of this year. Two are proposed reaffirmations of existing standards (no changes), one is a revision of a standard, and one is a new standard. The public review materials for the four standards are available at the URL below.

The two reaffirmations are for ANSI E1.11-2008, Entertainment Technology — USITT DMX512-A — Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories, and ANSI E1.14 – 2001 (R201x), Entertainment Technology — Recommendations for Inclusions in Fog Equipment Manuals. E1.11 is the well-know DMX512-A, a lighting control protocol that is now well over twenty years old, counting back to the original USITT version. E1.14 offers advice for what should be in user manuals for fog machines. It’s a short standard, and it’s free at http://plasa.me/67xd0. The reviews for these two standards run through January 7, 2013.

ANSI E1.19 – 2009, Recommended Practice for the Use of Class A Ground-Fault Circuit Interrupters (GFCIs) Intended for Personnel Protection in the Entertainment Industry, is a standard that offers guidance on using GFCIs to protect personnel. However, one of the problems with GFCIs in electrically noisy environments is that they are prone to tripping even when there is no electrical fault from which people need to be protected. PLASA’s Electrical Power Working Group is proposing to change section four in the existing standard so that it offers recommendations on how to reduce this nuisance tripping. The public review for the revision runs through January 14, 2013.

BSR E1.45 – 201x, Unidirectional Transport of IEEE 802 data frames over ANSI E1.11 (DMX512-A), is draft of a new standard that defines a minimal method to transport IEEE 802 data frames unidirectionally over ANSI E1.11 physical links using an Alternate START Code. The primary motivation is to allow communication of 802 data to luminaires over an ANSI E1.11 DMX512-A datalink for data transmission from those luminaires using Visible Light Communication, IEEE 802.15.7. However, this standard may be used to transport any 802 data for any purpose. Its review runs through January 14, 2013.

For more information, please contact Karl G. Ruling, PLASA technical standards manager 1-212-244-1505 or karl.ruling@plasa.org.

http://plasa.me/4xvjf