Ladders attachable

Bunched wires and cables are tested according to lEC Publication 332-3 (1982, Modification 1984) in a thermally insulated test rig comprising a vertical test chamber having a width of 1000 mm, a depth of 2000 mm and a height of 4000 mm with an air inlet aperture of 800 x 400 mm at the base and with a smoke outlet of 300 x 1000 mm at the top (Fig, 3.125a). The bunch of 3.5 m long pieces of cables is fixed to a steel ladder attached to the rear wall of 1000 x 4000 mm. The number of cable pieces... 

Portable ladders, hook-on ladders, attachable ladders, scaffold stairways, stairway-t3rpe ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or equivalent means or... 

When scaffold platforms are more than 2 feet above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. Crossbraces shall not be used as a means of access. 

A safe means of access should be provided on the narrowest side of the tower. This can be by vertical ladder attached internally, by internal stairways or by ladder sections designed to form part of the frame members. It is not acceptable to climb frame members not designed for the purpose. 

Winning the Nobel Prize inevitably brings with it, besides a brief period of wider publicity (which in America evaporates particularly fast), a steady stream of invitations, varied honors and recognitions, as well as more general public involvement. Professors and scientists in American life are usually not exactly at the top of the social ladder, nor are they used to much recognition. Personally, I rather like this, because it helps not to attach overgrown significance to one s importance, keeps one humanized, and, most important, allows one to stay centered without much distraction from one s work. It was, therefore,... 

Two men were inspecting a large tank in which other equipment was installed. The tank had two large manways attached to it, one near the bottom and one near the top. Ventilation was provided by air entering the bottom manway and leaving the top manway. A sheet of plastic had temporarily been placed over the top manway, which decreased the amount of air circiilation. One of the inspectors chmbed a ladder in the tank, became dizzy, and fell to the tank floor below. He died from the injuries received in the fall. It was found that... 

In Figure 8-1 we show the chemical structure of m-LPPP. The increase in conjugation and the reduction of geometrical defects was the main motivation to incorporate a poly(/ -phenylene)(PPP) backbone into a ladder polymer structure [21]. Due to the side groups attached to the PPP main chain excellent solubility in nonpolar solvents is achieved. This is the prerequisite for producing polymer films of high optical quality. A detailed presentation of the synthesis, sample preparation,... 

Figure 9-2. Based on ihe conjugated backbone of a /H/ra-phenylcne the most common principle structures of conjugated molecules am described (a) the pure backbone (b) a backbone with attached side-groups R and R (e) a ladder type-eonjugaled backbone (d) and (c) represent different types of copolymers. where (d) represents a side cliain-gnill copolymer and (c) a single eliain-bloek copolymer.

If the column outline is broken up by attachments, such as ladders or pipe work, the factor of 0.05 in equation 13.79a should be increased to 0.07, to allow for the increased drag. 

The loading per unit length of the column can be obtained from the wind pressure by multiplying by the effective column diameter the outside diameter plus an allowance for the thermal insulation and attachments, such as pipes and ladders. 

Helical strakes (strips) are fitted to the tops of tall smooth chimneys to change the pattern of vortex shedding and so prevent resonant oscillation. The same effect will be achieved on a tall column by distributing any attachments (ladders, pipes and platforms) around the column. 

Ancillary equipment attached to a tall vessel will subject the vessel to a bending moment if the centre of gravity of the equipment does not coincide with the centre line of the vessel (Figure 13.21). The moment produced by small fittings, such as ladders, pipes and manways, will be small and can be neglected. That produced by heavy equipment, such as reflux condensers and side platforms, can be significant and should be considered. The moment is given by ... 

Fig. 2.8. Break-seal ladder the different parts are not drawn to the same scale. Several portions of known volume of a liquid A are to be distilled into a container or apparatus B. Procedure One of the break-seals C is broken with the steel ball D and the required volume of A is distilled into a hanging burette (not shown) beyond E. The broken break-seal is sealed off by fusing at its seal-off point F then this first portion is distilled from the burette into B. For the next operation, D is transferred by a magnet into the next rung of the ladder. When all the break-seals have been used up, a second ladder can be attached at G and H without breaking the vacuum.

A2 shows the reaction between two different multimonomers. Two different type of units A and B, containing double bonds, are attached to two different templates. After polymerization, the ladder block copolymer can be formed. However, one cannot exclude formation of a mixture consisting two unconnected ladder homopolymers. 

Firefighters must sometimes use the aerial ladder on the fire truck to reach the upper levels of a building during a fire. This is the large ladder that is attached to the fire truck, and many can pivot and extend in excess of 100 feet. To operate the aerial ladder, firefighters must take the following steps in the order shown. 

In (60), these end-Li atoms are each complexed by a TMEDA molecule. For (59), there are two N—Li(PMDETA) units attached to these end-Li atoms. Thus, interception (by ligation) of the continuous ladder envisaged for [H2C(CH JLi] leads to its partial disconnection. 

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