Prix FOB
Obtenir le dernier prix1 ~ 1 / Set ( Negotiable )
|1 Set Minimum Order
Pays:
China
N ° de modèle:
AUTO-LDA
Prix FOB:
1 ~ 1 / Set ( Negotiable ) Obtenir le dernier prix
Localité:
China
Prix de commande minimale:
1 per Set
Commande minimale:
1 Set
Packaging Detail:
Standard export wooden case
Heure de livraison:
Shipped in 10 days after payment
Capacité de Fournir:
500 Set per Month
Payment Type:
T/T
Groupe de produits :
Personne àcontacter Ms. Judy
shajing, Shenzhen, Guangdong
Tracking test on insulating
materials and component s made of insulating material according to
IEC ****2 / ******1,necessary for tests according to e. g.
IEC ****5, IEC ****8, IEC ******1,
IEC ******1, IEC ******1,
IEC ******1, IEC ******1, IEC ****0,IEC ******1, IEC ******1,
IEC ******1, IEC ******1, IEC ****0, IEC ******1.
It must be accepted that, in normal use, components made of insulating material maybecome moist and dirty. If the impurities are electrically conducting, current will flowbetween parts of different voltage potentials - the tracking current. As a result, small flashovers may occur, which cause thermal stresses to the surface of the insulating material.The visual result of thermal decomposition of the insulating material caused by the tracking current is called the track. The interconnecting formation of carbonized material forms a tracking path, by which a lasting current conducting connection results. Thereafter the component cannot fulfill its intended electrical function in the majority of cases and parts may catch fire. The resistance of an insulating material to track formation is called the tracking resistance.
The behaviour of the surface
of solid insulating materials under the influence of tracking
currents is to be determined as follows: The tracking currents are
produced by allowing drops of an electrically conductive solution
to fall centrally between two electrodes which are put on the
sample and subjected to an alternating voltage.The tests can answer
the following questions:
What highest voltage causes no breakdown up to *0 drops, while
another voltage,*5 volts lower than the previously used voltage,
causes no breakdown up to **0 drops? (Method CTI).
Does no breakdown occur at a given voltage up to *0 drops each?
(Method PTI).
| Pays: | China |
| N ° de modèle: | AUTO-LDA |
| Prix FOB: | 1 ~ 1 / Set ( Negotiable ) Obtenir le dernier prix |
| Localité: | China |
| Prix de commande minimale: | 1 per Set |
| Commande minimale: | 1 Set |
| Packaging Detail: | Standard export wooden case |
| Heure de livraison: | Shipped in 10 days after payment |
| Capacité de Fournir: | 500 Set per Month |
| Payment Type: | T/T |
| Groupe de produits : | Safety products series |
