Kaablite koormustabelid - ElectroBaltic - Elektrikaubad

Kaablite koormustabelid

Projekteerimisel on elektrikaablite ja -kaitsmete valikul väga oluline seadmete omavaheline sobivus. Tihti paigaldatakse väikse ristlõikega kaablit suure automaatkaitselüliti alla (nt XPJ 3G1,5 kaabel C1x20A kaitsmega). Valed kombinatsioonid võivad kaasa tuua selle, et suure tarbimise korral võib kaitse mitte rakenduda ning kaablite ühenduskohad kuumenevad üle lubatud piiri või koguni tekib tulekahju.

Selle vältimiseks on kaks järgnevat tabelit aitamaks lihtsustada toodete valikut:

Vask (Cu) juhtmete koormustabel

Juhtme ristlõige(mm2)	Süvispaigaldus (A)	Pindpaigaldus (A)	Maapinnas paigaldus (A)	Õhuliini paigaldus (A)
1,5	13,5	18,5	26	19
2,5	18,5	25	36	26
4	24	33	46	36
6	30	43	57	45
10	41	60	78	63
16	55	80	101	84
25	72	101	130	10
35	87	126	156	13
50	104	152	185	16
70	132	195	228	20
95	159	236	271	25
120	182	274	308	29
150	207	311	349	33
185	236	361	389	38
240	276	427	450	45
300	315	491	510	52

Aluminiium (Al) juhtmete koormustabel

Juhtme ristlõige (mm2)	Süvispaigaldus (A)	Pindpaigaldus (A)	Maapinnas paigaldus (A)	Õhuliini paigaldus (A)
16	43	62	78	64
25	56	77	100	82
35	68	96	121	10
50	82	116	142	12
70	103	148	176	15
95	125	180	208	19
120	143	208	237	22
150	164	240	269	25
185	186	274	304	29
240	219	323	349	34
300	251	372	395	40

NB: Väärtused on ligikaudsed, täpsemate väärtuste arvutamiseks tuleb arvestada ka kaabli pikkuse ning toiteliini summarse kaugusega alajaamast (tulenevalt pingelangust). Samuti tuleb jälgida konkreetse kaabli tootelehte.

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