High-voltage/low voltage prefabricated substations
Specifies the service conditions, rated characteristics, general structural requirements and test method of prefabricated substations, which are cable connected, for alternating current of primary rated voltages above 1 kV and up to and including 52 kV1, and for a transformer of maximum power 1 600 kVA, for service frequencies up to and including 60 Hz.
Fixe les conditions de service, les caractéristiques assignées, les exigences structurelles générales, et les méthodes d'essai applicables aux postes préfabriqués qui sont connectés par câble, pour courant alternatif de tensions primaires assignées supérieures à 1 kV et inférieures ou égales à 52 kV1), pour un transformateur de puissance maximale 1600 kVA, pour des fréquences de service…
Performance and Compatability Requirements for Telephone Sets with Loop Signalling
1. Scope
1.1 Purpose
This Standard provides performance and compatibility requirements for telephone
sets intended for direct tip and ring connection to central office (CO) or
private branch exchange (PBX) lines. The requirements are based on present
telecommunications plant characteristics at the telephone set interface. These
requirements should ensure satisfactory voice-grade…
Commentary on CSA Standard S136-94, Cold Formed Steel Structural Members
1. Scope and Application
1.1
The Scope establishes that CSA Standard S136-94 applies to the design of cold
formed steel structural members and that the design is based on limit states
design (LSD) methods. Such members are roll or brake formed from carbon or low
alloy flat-rolled steel products. Cold formed members find application where
large surfaces are needed, as in deck and…
Telecommunications Cabling Systems in Commercial Buildings
1 INTRODUCTION
1.1 Purpose
This standard specifies a generic telecommunications cabling system for
commercial buildings that will support a multiproduct, multivendor environment.
It also provides information that may be used for the design of
telecommunications products for commercial enterprises.
The purpose of this standard is to enable the planning and installation of a…
Standard for External-Lug Quick-Connect Couplings and Adapters for Forestry
Fire Hose
1. SCOPe
1.1 This Standard contains requirements for 25 and 38 mm quick-connect
couplings and adapters of the external lug design for use in the forestry
service.
NOTES: 1) Quick-connect couplings and adapter sizes are in reference
to the forestry hose end.
2) The requirements for Forged External-Lug Quick-Connect
Couplings and…
Standard for Forged External-Lug Quick-Connect Couplings and Adapters for
Forestry Fire Hose
1. SCOPe
1.1 This Standard contains requirements for 25 and 38 mm forged
quick-connect couplings and adapters of the external lug design for use in the
forestry service.
NOTES: 1) Quick-connect coupling and adapter sizes are in reference
to the forestry hose end.
2) The requirements for non-forged External-Lug Quick-Connect…
