Statement of Mr. Eduardo Forgas, Managing Director of Electricfor, S. A.:
Throughout its history – from its foundation in 1974, although with a history going back to 1917 – the company has maintained a constant market presence offering technological products at levels of quality and service recognised in the marketplace.
That the Quality Policy of Electricfor, S. A. – attached to this declaration – summarises how we act to satisfy the expectations of our clients.
That this Quality Policy will be permanently available in all areas of the organisation.
That the present Quality Manual is the result of this Policy and both documents will be continuously updated so as to adapt to the evolution of the needs of our clients.
That the content of the current version of this Manual is known, understood and applied by all members of the organisation affected by it.
That the authority and responsibility for ensuring that the requirements of this manual are permanently put into practice is delegated to the Quality Management Director.
CONFORMITY STATEMENT
Electricfor,
S.A. declares that all the products described in this catalogue are manufactured
according to the norm mentioned above, and that they fulfil the requirements
of the Community's Directive on Low Voltage 73/23 EEC and the Directive on Electromagnetic
Accountability 89/336 EEC. For it the design and construction of our products
are applied in the norms harmonized in the EEC, emphasizing among them
Electricfor assures in products destined to comprise of a final apparatus the points of the norms that are to him of application (1). Adopting corresponds to the constructor of the apparatus the necessary measures for the fulfillment of the effective norms
(1) Referring mainly to tolerances in power
and intensity, leakage currents, dielectric strenght, screws and connections,
escape lines, distances in the air and distances through the isolation.
The temperature of the tube's protection is measured by a thermopar of thin wire fin and little weight sealed to the heating zone of the resistance.
(**) In the porous seals, leaks may reach 5 mA per kilowatt during the heating, only if they remain within the limits of the values requested by the norm when the regular working temperature is reached and admitting that the temperature of the seal reaches itself a minimum of 110 ºC. For this very reason we recommend that you do not opt for such a seal unless absolutely necessary due to the temperature that the or the reinforcement will have to reach While conceiving the heater to which the resistors will be included it has to be taken into account that the temperature reached by those resistor should not affect dangerously the other parts of the heater. In order to insure a reasonable life expectancy, you should check the capacity of the protecting material to resist to corrosion in live conditions of the machine. We remind you that even stainless steel may show signs of corrosion in drinkable water. For more information, see our technical sheet NTT-4101, or contact our Technico-Commercial department.
Electricfor assures in its process manufacture heating elements the maintenance the applied standards of design. For our standardized products, the following systematic controls are made among others:
|
Parameter
|
Tolerances
|
|
Power
|
+5 -10% |
|
Dielectric
strenght
|
1250
V 1 min
|
|
Leakage
current
|
0,75
mA/kW (max 5 mA)
|
|
Dimensions
|
Generals
according to IT15
|
In products of special manufacture the control parameters are personalizan from the design according to the necessities of each case.
In compliance with those chapters, the measures required by the norm are carried out under normal functioning temperature. Electricfor realises those measures at the highest temperature admitted by each product. One needs to take into consideration that if a sufficient extraction of heat of the resistance isn't guarantied, it can exceed the maximum temperature and melt or be deteriorated. To make sure that the element, once set on the final heater, keeps on fulfilling the EC norm you will only need to measure the temperatures of the seal in all the situations likely to happen, may they be during normal use, abnormal functioning or during an overheat, and check that it remains within the limits of utilisation of the product detailed below. It is specially advised to study if the is functioning without a product to heat, for example without ventilation or without being immersed in water, depending on the products. It is necessary to take the adequate measures in order to avoid that the resistance functions in such conditions and inform the user of the precautions to take.