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This standard specifies performance requirements for ballasts, excluding resistance types, for use on a.c. supplies up to 1000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with pre-heated cathodes operated with or without a starter or starting device and having rated...
Introduction This Track Work Instruction covers how to decide on the minimum depth of ballast in situations where it is not possible to achieve full depth to Network Rail Company Specifications. See also separate instructions: TWI 3B003 How to understand blanket design TWI 3B010 How to...
Introduction This Track Work Instruction covers how to manually achieve the correct ballast profile on CWR and Jointed track.
This Standard applies to all ballasts for high-intensity discharge (HID) and low-pressure sodium (LPS) lamps intended to operate with an input line frequency of 60 Hz. Note: Safety requirements for ballasts are provided in Part 2 of CAN/CSA-C22.2 No. 74. This Standard defines the...
1.1 This specification covers dry-cast concrete ballast blocks that are primarily used for ballast of rooftop equipment. These units are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. Note 1: The design of...
This Standard describes the procedures to be followed and the precautions to be taken in measuring performance of low-frequency ballasts (electromagnetic and electronic ballasts that operate at less than 400 Hz) for high-intensity discharge (HID) lamps. Deviations from the...
This specification covers dry-cast concrete ballast blocks that are primarily used for ballast of rooftop equipment. These units are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. NOTE 1-The design of...
1.1 This specification covers dry-cast concrete ballast blocks that are primarily used for ballast of rooftop equipment. These units are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. Note 1: The design of...
1.1 This specification covers dry-cast concrete ballast blocks that are primarily used for ballast of rooftop equipment. These units are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. Note 1: The design of...
GENERAL International ballast water management certificate Applicable interpretations of regulations of the BWMS Code and the BWM Convention are found in the DNV GL rules for classification of ships, DNVGL-RU-SHIP Pt.6 Ch.7 Sec.1. Meeting the full set of requirements in the referenced rules...
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Includes: RRVs, baskets and dumper Excludes: Trains
