‘P’ – Light Conventional tungsten lamp

Cloth, materials and construction

Any cloth can be bespoke to the client’s requirement in any shape or size.

The standard format consists of a face cloth manufactured in width multiples of 1.5m (5ft) and varying lengths, normally 1.5m (5ft) increments.

The cloth widths indicated are multiples of the fabric roll width.

Normally the face cloth is ‘Black’ Wool Serge – DFR BS.5867 certified or DIN 4102 B1 for applications within Germany.

The wool serge has a deep black pigment and has a personality, which enhances the effect of any light point as the cloth has very little sheen.

This face cloth is fitted with ‘velcro’ to the leading and trailing edges so that adjoining cloths can be fastened together for neatness.
In addition ‘velcro’ is fitted to the perimeter of the cloth so that a backing material can be attached.
Whilst this method is more expensive than a permanent backing, it allows for instant removal for potential servicing and in addition quick replacement if any damage is incurred.

Backing materials can be either black ‘Bolton Twill’ (DFR) or lightweight CS Trevira (IFR)

Each cloth shell can be fitted with tie tapes or eyelets and loose tapes to the top webbing for hanging of the cloths. The latter format allows for client replacement of damaged tie tapes without the need of sewing.

Equipment

The total amount of points is based on an approximation of 10 per sq.m

The ‘P’ light has a warm tungsten glow, best described as yellow / amber appearance

Each lamp is solder mounted to a master two core cable, fitted to the cloth by means of a sprung steel grommet.

In the event of replacement, the lamps are easily maintained by ‘splicing in’ a quick-fit replacement – and the addition of push fit connectors

Recommendations

Incandescent sources are particularly vulnerable after long periods of use when the glass is hot and brittle. Cooling down periods should be applied prior to dismantling.
Careful folding and storage must be practiced.

Lamp life is not guaranteed.

Power consumption is based on a lamp of 1 watt @ 28vac
Thus a 240 lamp traditional incandescent cloth would draw 2.85a per circuit.
220vac load is therefore 0.4a per circuit

Daisy chaining of these cloths would be achieved via the header cable 28vac supplies – These cables terminate with male / female bespoke ‘CEE form’ connectors (one plug + one socket per circuit).
Interconnection to transformers is achieved by 3 way looms of the above cable / connector configuration.

Transformers are single or double ‘ganged’ 500 or 1000va (10kgs or 18kgs respectively)
These will power 250 lamps per outlet and would be required in multiples when cloths exceed the available power.

Control can be achieved via house dimmers or small effects processors such as a Pulsar 4001 effects – chase unit.
Multiple Pulsar units will be required depending upon the quantity of cloths being run.

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