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  2. Handrail - Wikipedia

    en.wikipedia.org/wiki/Handrail

    Handrails are located at a height between 34 and 38 inches (864 and 965 mm). In areas where children are the principal users of a building or facility, the 2010 ADASAD recommends that a second set of handrails at a maximum height of 28 inches (711 mm) measured to the top of the gripping surface from the ramp surface or stair nosing can assist ...

  3. DMS-100 - Wikipedia

    en.wikipedia.org/wiki/DMS-100

    The DMS-100 is a member of the Digital Multiplex System (DMS) product line of telephone exchange switches manufactured by Northern Telecom. Designed during the 1970s and released in 1979, it can control 100,000 telephone lines. [1] The purpose of the DMS-100 Switch is to provide local service and connections to the PSTN public

  4. Guard rail - Wikipedia

    en.wikipedia.org/wiki/Guard_rail

    An example of a common residential guard rail (US) handrail (Brit.) is a wood railing around a deck or patio. In the US this is typically built on-site from pressure treated lumber thus featuring a simplistic design of vertical baluster spaced every 3.5 inches (8.9 cm) demonstrating compliance with Building Codes (Standards).

  5. Stair lift - Wikipedia

    en.wikipedia.org/wiki/Stair_lift

    For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail. Stair lifts are known variously as stairlifts, stair-lifts, chair lifts, stair gliders and by ...

  6. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    Existing bridges can remain part of the Interstate system if they have at least 12-foot-wide (3.7 m) lanes with 3.5-foot (1.1 m) shoulder on the left and a 10-foot (3.0 m) shoulder on the right, except that longer bridges can have 3.5 feet (1.1 m) shoulders on both sides. For all bridges, the railing should be upgraded if necessary.

  7. Railway platform height - Wikipedia

    en.wikipedia.org/wiki/Railway_platform_height

    Taiwan high-speed rail platforms are 1,250 mm (49.2 in) above rail. Example of a platform whose height was raised. In Taiwan, Taiwan Railways Administration's platforms were 760 mm (29.9 in) tall and passengers must take two stair steps to enter the train. In 2001, however, the platforms were raised to 960 mm (37.8 in), cutting the steps needed ...

  8. Distribution management system - Wikipedia

    en.wikipedia.org/wiki/Distribution_management_system

    A distribution management system (DMS) is a collection of applications designed to monitor and control the electric power distribution networks efficiently and reliably. It acts as a decision support system to assist the control room and field operating personnel with the monitoring and control of the electric distribution system.

  9. U.S. Military connector specifications - Wikipedia

    en.wikipedia.org/wiki/U.S._Military_connector...

    A MIL-DTL-38999 circular connector plated with a nickel–teflon composite. Left: plug (male) type connector; Right: receptacle (female) type connector) Electrical or fiber-optic connectors used by U.S. Department of Defense were originally developed in the 1930s for severe aeronautical and tactical service applications, and the Type "AN" series set the standard for modern military circular ...